AHER1282

Power Relay, DPST-NO, 24 VDC, 80 A, HE-R Series, Through Hole, Non Latching

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Manufacturer: PANASONIC
Product type: Power Relays
SVHC: To Be Advised
Coil Type: Non Latching
Coil Voltage: 24VDC
Product Range: HE-R Series
Relay Mounting: Through Hole
Coil Resistance: 144ohm
Contact Current: 80A
Relay Terminals: PC Pin
Contact Material: Silver Nickel
Contact Voltage VAC: 277V
Contact Voltage VDC: -
Contact Configuration: DPST-NO
Delivery and price
Units per pack	10
Price	54.05 €
Current stock	10+
Lead time	30 days
Datasheet
## Power Relays ( Over 2 A ) HE-R RELAYS 

## Product Catalog 

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2023.9 

Power Relays ( Over 2 A ) 

## HE-R RELAYS 

## Compact size 2 Form A and 2 Form A 1Form B 80 A/4 Form A and 4 Form A and 1 Form B 40 A power relays 

Protective construction：Flux-resistant type 

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60.0 37.0 60.0 37.0<br>47.0 47.0<br>2 Form A (2a) 2 Form A 1 Form B (2a1b)<br>Se B<br>58.0 35.0 58.0 35.0<br>47.0 47.0<br>4 Form A (4a) 4 Form A 1 Form B (4a1b)<br>（Unit：mm）<br>**----- End of picture text -----**<br>


## FEATURES 

- ●High capacity 

   - ・2 Form A/2 Form A 1 Form B: 70 A 277 V AC 30 × 103 ope. Max. switching current 80 A 

   - ・4 Form A/4 Form A 1 Form B: 40 A 480 V AC 30 × 103 ope. Max. switching current 50 A 

- ●Welding detection function: Mirror contact mechanisms ( Compliant with IEC60947-4-1 ) 

- ●PCB Terminals 

- ●Low operating power: 

   - 4.0 W ( Holding power 0.49 W ) 

- ●Contact gap: Min.3.6 mm 

- ●Short circuit capability 

   - ・2 Form A/2 Form A 1 Form B: Irms ＝ 5 kA ( Compliant with UL508 ) ・4 Form A/4 Form A 1 Form B: Ip  ＝ 2.6 kA 

   - I2t ＝ 6.5 kA2s ( Compliant with IEC62955 ) 

## TYPICAL APPLICATIONS 

- ●Charging Station 

- ●Industrial equipment 

## DETAILS FEATURES 

|Form A contact|Min. 3.6 mm each Form A contact|
|---|---|
|Form B contact|Min. 0.5 mm<br>(when Form A contact welded)|



- ■UL standard short circuit capability 2a/2a1b: UL508 

- Irms ＝ 5 kA 

- The most suitable for IEC compliant charging stations 4a/4a1b: IEC61851-1, IEC62955 

- ■Insulation distance ( initial ) 

|Item|2 Form A /<br>2 Form A1 Form B|4 Form A /<br>4 Form A1 Form B|
|---|---|---|
|Between Form A<br>contact and coil|Min. 8.0 mm<br>( Clearance/Creepage )||
|Between Form B<br>contact and coil|Min. 3.2 mm<br>( Clearance/Creepage )||
|Between Form A<br>contact sets|Min. 8.0 mm<br>( Clearance/Creepage )|Min. 5.5 mm<br>( Clearance/Creepage )|
|Between Form A<br>contact and<br>Form B contact|Min. 8.0 mm<br>( Clearance/Creepage )||



- Contact Gap: Min. 3.6 mm ( Initial Value ) 

- Electrical life: 32 A 277 V AC Min. 50 × 10[3] operations 

- Short circuit withstand: Ip ＝ 2.6 kA, I[2] t ＝ 6.5 kA[2] s 

Panasonic Industry Co., Ltd. Electromechanical Control Business Division industrial.panasonic.com/ac/e/ 

ASCTB441E   202309 

ー 1 ー 

Panasonic Industry Co., Ltd. 2023 

Power Relays ( Over 2 A ) HE-R RELAYS 

## ORDERING INFORMATION ( PART NO. ) 

## **AHER** 

Contact arrangement/Operating function Contact type Terminal shape Rated coil voltage（DC） 1 : 2 Form A, Single side stable 1：Standard type 8：PC board terminal, Part number 1 2 2 : 2 Form A 1 Form B, Single side stable （4 Form A/4 Form A 1 Form B） Cover shield type Rated coil voltage（V）12 24 3 : 4 Form A, Single side stable 2：High capacitive type （2 Form A/2 Form A 1 Form B） 4 : 4 Form A 1 Form B, Single side stable （2 Form A/2 Form A 1 Form B） 9：PC board terminal （4 Form A/4 Form A 1 Form B） 

Note) Please contact us for other coil voltages. 

## TYPES 

## ■PC board terminal 

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Standard packing<br>Contact arrangement Rated coil voltage Part No.<br>Inner carton Outer carton<br>12 V DC AHER1281<br>2 Form A<br>24 V DC AHER1282<br>12 V DC AHER2281<br>2 Form A 1 Form B<br>24 V DC AHER2282<br>10 pcs. 50 pcs.<br>12 V DC AHER3191<br>4 Form A<br>24 V DC AHER3192<br>12 V DC AHER4191<br>4 Form A 1 Form B<br>24 V DC AHER4192<br>**----- End of picture text -----**<br>


## RATING 

## ■Coil data 

- Operating characteristics such as " Operate voltage " and " Release voltage " are influenced by mounting conditions or ambient temperature, etc. 

Therefore, please use the relay within ±5 ％ of rated coil voltage. 

- " Initial " means the condition of products at the time of delivery. 

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Rated coil  voltage*Operate  [1] Release voltage* [1] Rated operating current Coil resistance Rated operating  Max. allowable voltage<br>voltage  ( at 20 ℃ )   ( at 20 ℃ )  ( ±10 ％, at 20 ℃ )  ( ±10 ％, at 20 ℃ )  power  ( at 55 ℃ )<br>12 V DC Max. 75 ％ V of  Min. 5 ％ V of  333 mA  36.0 Ω 4,000 mW 110 ％ V of<br>rated coil voltage rated coil voltage Holding* [2] :   rated coil<br>24 V DC  ( Initial )   ( Initial )  167 mA 144.0 Ω 490 mW* [3] voltage<br>**----- End of picture text -----**<br>


- *1: Square, pulse drive 

- *2: When using with the holding voltage, switch to the holding voltage after 200 ms from the application of the coil rated voltage. 

- *3: With 35 ％ V coil holding voltage 

Panasonic Industry Co., Ltd. Electromechanical Control Business Division industrial.panasonic.com/ac/e/ 

> Panasonic Industry Co., Ltd. 2023 ASCTB441E   202309 

ー 2 ー 

Power Relays ( Over 2 A ) HE-R RELAYS 

## ■Specifications 

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Item Specifications<br>2 Form A ( 2a ) ,   4 Form A ( 4a ) ,<br>Contact arrangement<br>2 Form A 1 Form B ( 2a1b ) 4 Form A 1 Form B ( 4a1b )<br>Max. 10 mΩ  Max. 10 mΩ<br> ( by voltage drop 20 A 6 V DC, after 3 min. )  ( by voltage drop 20 A 6 V DC after 3 min. )<br>Contact resistance ( initial )  Max. 3 mΩ Max. 3 mΩ<br> ( by voltage drop 80 A 6 V DC, reference value )  ( by voltage drop 50 A 6 V DC, reference value )<br>Contact material AgNi type AgSnO2 type<br>Form A  Contact rating ( resistive ) 80 A 277 V AC 40 A 480 V AC<br>contact Max. switching power<br>22,160 VA 19,200 VA<br>( resistive )<br>Max. switching voltage 277 V AC 480 V AC<br>Contact data Max. switching current 80 A 50 A<br>Min. switching load   100 mA 24 V DC<br>( reference value ) * [1]<br>Contact resistance ( initial ) Max. 100 mΩ ( by voltage drop 1 A 6 V DC )<br>Contact material Au plated AgNi type<br>Contact rating ( resistive ) 0.5 A 30 V DC, 1 A 277 V AC<br>Form B<br>contact Max. switching power   15 W, 277 VA<br>( resistive )<br> ( 4a1b<br>type only )  Max. switching voltage 30 V DC, 277 V AC<br>Max. switching current 1 A<br>Min. switching load   10 mA 5 V DC<br>( reference value ) * [1]<br>Min. 1,000 MΩ<br>Insulation resistance ( initial )<br> ( at 500 V DC, Measured portion is the same as the case of dielectric strength )<br>Between open Form A contacts 2,000 V rms for 1 min ( detection current: 10 mA )<br>Between Form A contact and coil 5,000 V rms for 1 min ( detection current: 10 mA )<br>Dielectric Between Form A contact sets 5,000 V rms for 1 min ( detection current: 10 mA )<br>strength   Between open Form B contacts 1,000 V rms for 1 min ( detection current: 10 mA )<br>( initial )  Between Form B contact and coil 2,000 V rms for 1 min ( detection current: 10 mA )<br>Between Form A contact and Form B<br>contact 5,000 V rms for 1 min ( detection current: 10 mA )<br>Surge  Between Form A contact and coil 10,000 V<br>withstand<br>voltage Between Form B contact and coil 2,500 V<br> ( initial ) * [2]<br>35 to 110 % V  35 to 110 % V<br> ( at －40 to ＋55℃, Form A contact: 80 A )  ( at －40 to ＋55 ℃, Form A contact: 50 A )<br>Coil holding voltage* [3]<br>35 to 50 % V 35 to 50 % V<br> ( at －40 to ＋85℃, Form A contact: 70 A to 80 A )  ( at －40 to ＋85 ℃, Form A contact: 40 A to 50 A )<br>Time  Operate time Max. 50 ms ( at rated coil voltage, at 20 ℃, without bounce )<br>characteristics<br>( initial ) Release time* [4] Max. 30 ms ( at rated coil voltage, at 20 ℃, without bounce, without diode )<br>Shock  Functional 25 m/s [2]  ( half-sine shock pulse: 11 ms, detection time: 10 µs )<br>resistance Destructive 980 m/s [2]  ( half-sine shock pulse: 6 ms )<br>Vibration  Functional  10 to 55 Hz ( at double amplitude of 0.3 mm, detection time: 10 µs )<br>resistance Destructive 10 to 55 Hz ( at double amplitude of 1.5 mm )<br>Expected life  Mechanical life Min. 100 × 10 [3]  ope. ( switching frequency: at 180 times/min )<br>Ambient temperature:  －40 to ＋55 ℃<br> ( When applied coil hold voltage is 35 to 110 % V of<br>rated coil voltage. )<br>Conditions Conditions for usage, transport and  －40 to ＋85 ℃<br>storage<br> ( When applied coil hold voltage is 35 to 50 % V of rated<br>coil voltage or storage. )<br>Humidity: 5 to 85 % RH ( Avoid icing and condensation )<br>Unit weight Approx. 180 g<br>**----- End of picture text -----**<br>


- *1:  This value can change due to the switching frequency, environmental conditions, and desired reliability level, therefore it is recommended to check this with the actual load. 

- *2: Wave is standard shock voltage of ±1.2 × 50 µs according to JEC-212-1981 

- *3: Coil holding voltage is the coil voltage after 200 ms from the applied rated coil voltage. 

- *4: Release time will lengthen if a diode, etc., is connected in parallel to the coil. Be sure to verify operation under actual conditions. 

Panasonic Industry Co., Ltd. Electromechanical Control Business Division industrial.panasonic.com/ac/e/ 

> Panasonic Industry Co., Ltd. 2023 ASCTB441E   202309 

ー 3 ー 

Power Relays ( Over 2 A ) HE-R RELAYS 

## ■Expected electrical life 

Conditions: Resistive load, Switching frequency: ON: OFF ＝ 1 s: 9 s 

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Type Switching capacity Number of operations<br>63   A 277 V AC Min.  50 × 10 [3]  ope.<br>Form A contact 70   A 277 V AC Min.  30 × 10 [3]  ope.<br>2 Form A/<br>2 Form A 1 Form B 80   A 277 V AC Min.  10 × 10 [3]  ope.<br>Form B contact  0.5 A  30 V DC Min. 100 × 10 [3]  ope.<br> ( 2 Form A 1 Form B type only )   1   A 277 V AC Min. 100 × 10 [3]  ope.<br>32   A 277 V AC Min.  50 × 10 [3]  ope.<br>Form A contact<br>4 Form A/  40   A 480 V AC Min.  30 × 10 [3]  ope.<br>4 Form A 1 Form B Form B contact  0.5 A  30 V DC Min. 100 × 10 [3]  ope.<br> ( 4 Form A 1 Form B type only )   1   A 277 V AC Min. 100 × 10 [3]  ope.<br>**----- End of picture text -----**<br>


## REFERENCE DATA 

## 1-1.  Max. switching capacity 

( 2 Form A/2 Form A 1 Form B ) 

## 1-2.  Max. switching capacity 

( 4 Form A/4 Form A 1 Form B ) 

|0.1<br>1<br>10<br>100<br>1000<br>Contact current（A）||||Contact current（A）<br>10<br>1<br>100<br>50<br><br>10<br>100<br>1,000<br>~~**AC resistive load**~~<br>Contact voltage（V）|Contact current（A）<br>10<br>1<br>100<br>50<br><br>10<br>100<br>1,000<br>~~**AC resistive load**~~<br>Contact voltage（V）|Contact current（A）<br>10<br>1<br>100<br>50<br><br>10<br>100<br>1,000<br>~~**AC resistive load**~~<br>Contact voltage（V）|Contact current（A）<br>10<br>1<br>100<br>50<br><br>10<br>100<br>1,000<br>~~**AC resistive load**~~<br>Contact voltage（V）|Contact current（A）<br>10<br>1<br>100<br>50<br><br>10<br>100<br>1,000<br>~~**AC resistive load**~~<br>Contact voltage（V）|Contact current（A）<br>10<br>1<br>100<br>50<br><br>10<br>100<br>1,000<br>~~**AC resistive load**~~<br>Contact voltage（V）|**AC resistive load**<br>Contact voltage（V）<br>1<br>10<br>100<br>1,000|
|---|---|---|---|---|---|---|---|---|---|---|
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||||||~~**C**~~|~~**ii**~~|~~**ld**~~||||
||||||~~**r**~~|~~**sstve**~~|~~**oa**~~||||
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|10<br>30<br>100<br>1,000<br>1 0<br>20<br>40<br>60<br>~~**250V AC resistive load**~~<br>Contact current（A）<br>No. of operations（×103）<br>2-2.  Switching life curve<br>( 4 Form A/4 Form A 1 Form B )<br>2-1.  Switching life curve<br>( 2 Form A/2 Form A 1 Form B )<br>10<br>100<br>1,000<br>1 0<br>20<br>40<br>60<br>80<br>100<br>~~**277V AC resistive load**~~<br>Contact current（A）<br>No. of operations（×103）|||||||||||
|10<br>100<br>1,000<br>1<br>No. of operations（×103）|||||||||||
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||~~**2**~~|~~**77V**~~|~~**AC res**~~|~~**istive**~~|~~**load**~~||||||
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|Measured portion：Coil inside<br>Contact current：50A, 40A, 0A<br>Ambient temperature：25℃, 55℃, 85℃<br>20.0<br>10.0<br>40.0<br>30.0<br>60.0<br>50.0<br>70.0<br>80.0<br>90.0<br>100.0<br>0.0<br>40<br>20<br>60<br>80<br>100<br>120<br>**25℃ 50A**<br>**55℃ 50A**<br>**25℃ 0A**<br>**85℃ 0A**<br>~~85℃ 40A~~<br>Temperature rise（℃）<br>Coil applied voltage（%V）<br>3-2.  Coil temperature characteristics<br>( 4 Form A/4 Form A 1 Form B )<br>Measured portion：Coil inside<br>Contact current：80A, 70A, 0A<br>Ambient temperature：25℃, 55℃, 85℃<br>20.0<br>10.0<br>40.0<br>30.0<br>60.0<br>50.0<br>70.0<br>80.0<br>90.0<br>100.0<br>0.0<br>40<br>20<br>60<br>80<br>100<br>120<br>**25℃ 80A**<br>**55℃ 80A**<br>**25℃ 0A**<br>**85℃ 0A**<br>~~85℃ 70A~~<br>Temperature rise（℃）<br>Coil applied voltage（%V）<br>3-1.  Coil temperature characteristics<br>( 2 Form A/2 Form A 1 Form B )|||||||||||
|Me<br>Con<br>Am<br>20.0<br>10.0<br>40.0<br>30.0<br>60.0<br>50.0<br>70.0<br>80.0<br>90.0<br>100.0<br>0.0<br><br>Temperature rise（℃）|||||||||||
||||||||||**5℃ 80**<br>**5℃ 80**<br>**5℃ 0A**||
|||||||||**5**|||
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||~~85℃ ~~||~~70A~~||||||||
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||||**85℃ **|**0A**|||||||
||20||||||||||



Panasonic Industry Co., Ltd. Electromechanical Control Business Division industrial.panasonic.com/ac/e/ 

ASCTB441E   202309 

ー 4 ー 

Panasonic Industry Co., Ltd. 2023 

Power Relays ( Over 2 A ) HE-R RELAYS 

## 4-1.  Ambient temperature characteristics 

( 2 Form A/2 Form A 1 Form B ) 

## 4-2.  Ambient temperature characteristics 

( 4 Form A/4 Form A 1 Form B ) 

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Tested sample：AHER2281, 6 pcs. Tested sample：AHER4191, 6 pcs.<br>15 15<br>Operate<br>voltage<br>10 10<br>Release<br>5 voltage 5<br>ｰ60 ｰ40 ｰ20 0 0 ｰ60 ｰ40 ｰ20 0 0<br>20 40 60 80 100 20 40 60 80 100<br>Ambient Ambient<br>ｰ5 temperature（℃） ｰ5 temperature（℃）<br>Release<br>voltage<br>ｰ10 ｰ10<br>Operate<br>voltage<br>ｰ15 ｰ15<br>5-1.  Allowable range of coil holding   5-2.  Allowable range of coil holding<br>voltage and temperature  voltage and temperature<br> ( 2 Form A/2 Form A 1 Form B )   ( 4 Form A/4 Form A 1 Form B )<br>120 120<br>100 100<br>80 Allowable range 80<br>Allowable range<br>60 60<br>40 40<br>20 20<br>ｰ60 ｰ40 ｰ20 0 0 20 40 60 80 100 ｰ60 ｰ40 ｰ20 0 0 20 40 60 80 100<br>Ambient temperature（℃） Ambient temperature（℃）<br>6-1.  Allowable range of contact current  6-2.  Allowable range of contact current<br>and temperature  and temperature<br> ( 2 Form A/2 Form A 1 Form B )   ( 4 Form A/4 Form A 1 Form B )<br>90 60<br>80<br>50<br>70<br>60 40<br>50 Allowable range Allowable range<br>30<br>40<br>30 20<br>20<br>10<br>10<br>ｰ60 ｰ40 ｰ20 0 0 20 40 60 80 100 ｰ60 ｰ40 ｰ20 0 0 20 40 60 80 100<br>Ambient temperature（℃） Ambient temperature（℃）<br>7-1.  Contact resistance  7-2.  Contact resistance<br> ( 2 Form A/2 Form A 1 Form B )  ( 2 Form A/2 Form A 1 Form B )<br>Tested sample：AHER2281, 20pcs. Tested sample：AHER2281, 20pcs.<br>Conditions：6 V DC, 20 A Conditions：6 V DC, 80 A<br>18 18<br>16 16<br>14 14<br>12 12<br>10 10<br>8 8<br>6 6<br>4 4<br>2 2<br>0 0<br>0 1.0 2.0 3.0 4.0 5.0 6.0 7.0 8.0 9.0 10.0 0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0<br>Contact resistance（mΩ） Contact resistance（mΩ）<br>）（％V ）（％V<br>Rate of change Rate of change<br>）<br>） V<br>V<br>（％<br>（％ Coil holding voltage<br>Coil holding voltage<br>）（Contact currentA ）（Contact currentA<br>n pcs. n pcs.<br>**----- End of picture text -----**<br>


Panasonic Industry Co., Ltd. Electromechanical Control Business Division industrial.panasonic.com/ac/e/ 

ASCTB441E   202309 

Panasonic Industry Co., Ltd. 2023 

ー 5 ー 

Power Relays ( Over 2 A ) HE-R RELAYS 

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**----- Start of picture text -----**<br>
7-3.  Contact resistance  7-4.  Contact resistance<br> ( 4 Form A/4 Form A 1 Form B )   ( 4 Form A/4 Form A 1 Form B )<br>Tested sample：AHER4191, 20pcs. Tested sample：AHER4191, 20pcs.<br>Conditions：6 V DC, 20 A Conditions：6 V DC, 50 A<br>16 16<br>14 14<br>PT TTT Ey TT Lime ttt tty tl<br>12 SERRE 12 PIT<br>10 PLT 10 ET ETT<br>8 8<br>PT TE ET PAT ET<br>p 6 ELUTE UE ET TT 6 PIM TET ET<br>ET TP ot EEETET TT<br>4 4<br>2 2<br>0 Ci COC 0 [Um tt |<br>0 1.0 2.0 3.0 4.0 5.0 6.0 7.0 8.0 9.0 10.0 0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0<br>Contact resistance（mΩ） Contact resistance（mΩ）<br>n pcs. n pcs.<br>**----- End of picture text -----**<br>


## ~~Ce~~ DIMENSIONS ( Unit: mm ) 

The CAD data of the products with a " CAD " mark can be downloaded from our Website. 

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■2 Form A ( 2a )<br>ap CAD External dimensions<br>se l _ l<br>58.0±0.5<br>60.0±0.5<br>| |<br>1.5 3.1 26.3 27.0 9.4<br>28.8 0.5 1.2 21.0<br>General tolerance ±0.3<br>Recommended PC board pattern Schematic<br> ( BOTTOM VIEW )   ( BOTTOM VIEW )<br>26.3 27.0 8<br> R0.5  R0.8 10 12<br>3 1<br>5<br>1.0 1.8<br>Tolerance ±0.1<br>0.5 0.5<br>± ±<br>37.0 35.0<br>0.5<br>±<br>47.0<br>+0.5 5.50.3‒<br>28.8 11.0 21.0<br>2.5<br>**----- End of picture text -----**<br>


Panasonic Industry Co., Ltd. Electromechanical Control Business Division industrial.panasonic.com/ac/e/ 

> Panasonic Industry Co., Ltd. 2023 ASCTB441E   202309 

ー 6 ー 

Power Relays ( Over 2 A ) HE-R RELAYS 

■2 Form A 1 Form B ( 2a1b ) 

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External dimensions<br>58.0±0.5<br>60.0±0.5<br>14.6 1.5 3.1 26.3 27.0 9.4<br>28.8 0.5 1.2 21.0<br>2a1b type only<br>General tolerance ±0.3<br>0.5 0.5<br>± ±<br>37.0 35.0<br>0.5<br>±<br>47.0<br>+0.5 5.50.3‒<br>**----- End of picture text -----**<br>


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Recommended PC board pattern Schematic<br> ( BOTTOM VIEW )   ( BOTTOM VIEW )<br>26.3 27.0 8<br> R0.5  R0.8 10 12<br>7<br>6<br>3 1<br>5<br>1.0 1.8<br>2a1b type only<br>Tolerance ±0.1<br>28.8 14.6 11.0 21.0<br>2.5<br>**----- End of picture text -----**<br>


Panasonic Industry Co., Ltd. Electromechanical Control Business Division industrial.panasonic.com/ac/e/ 

ASCTB441E   202309 

Panasonic Industry Co., Ltd. 2023 

ー 7 ー 

Power Relays ( Over 2 A ) HE-R RELAYS 

■4 Form A ( 4a ) 

External dimensions 

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58.0±0.5<br>sl<br>28.8 1.5 0.5 1.0 9.4<br>2.1 12.9 13.5 13.5 13.5 21.0<br>General tolerance ±0.3<br>Recommended PC board pattern Schematic<br> ( BOTTOM VIEW )   ( BOTTOM VIEW )<br> 12.9   13.5   13.5   13.5  8<br> R0.5  R0.8 Ren 944 1033 112<br>5<br>4 1.0 teeter  1.6<br>Tolerance ±0.1<br>0.5<br>±<br>35.0<br>0.5<br>±<br>47.0<br>＋0.5 0.3－<br>5.5<br> 28.8   11.0   21.0<br>2.5<br>**----- End of picture text -----**<br>


8 Ren 944 1033 112 ~~e~~ 2 121 5 

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ー 8 ー 

ASCTB441E   202309 

Panasonic Industry Co., Ltd. 2023 

Power Relays ( Over 2 A ) HE-R RELAYS 

■4 Form A 1 Form B ( 4a1b ) 

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External dimensions<br>**----- End of picture text -----**<br>


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58.0±0.5<br>14.6 1.5 0.5 1.0 9.4<br>28.8 2.1 12.9 13.5 13.5 13.5 21.0<br>4a1b type only General tolerance ±0.3<br>0.5<br>±<br>35.0<br>0.5<br>±<br>47.0<br>＋0.5 0.3－<br>5.5<br>**----- End of picture text -----**<br>


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Recommended PC board pattern Schematic<br> ( BOTTOM VIEW )   ( BOTTOM VIEW )<br> 12.9   13.5   13.5   13.5  8<br> R0.5  R0.8 9 10 11 12<br>7<br>6<br>ao 4 3 e 2 1<br>5<br>1.0 4a1b type only  1.6<br>Tolerance ±0.1<br> 28.8   14.6   11.0   21.0<br>2.5<br>**----- End of picture text -----**<br>


Panasonic Industry Co., Ltd. Electromechanical Control Business Division industrial.panasonic.com/ac/e/ 

ー 9 ー 

ASCTB441E   202309 

Panasonic Industry Co., Ltd. 2023 

Power Relays ( Over 2 A ) HE-R RELAYS 

## SAFETY STANDARDS 

Each standard may be updated at any time, so please check our Website for the latest information. 

- ■UL/C-UL ( Approved ) 

- ●2 Form A/2 Form A 1 Form B 

Form A contact 

**==> picture [245 x 112] intentionally omitted <==**

**----- Start of picture text -----**<br>
Ambient<br>File No. Contact rating Operations<br>temperature<br>80 A 277 V AC Resistive 10 × 10 [3] 85 ℃<br>E43149 70 A 277 V AC Resistive 30 × 10 [3] 85 ℃<br>63 A 277 V AC Resistive 50 × 10 [3] 85 ℃<br>Short circuit capability<br>File No. Contact rating<br>E43149 I ＝ 5000A rms, pf ＝ 0.7-0.8, U ＝ 240 V AC,<br>Class RK5 fuse rated 100 A ( UL508 table.51.3 )<br>**----- End of picture text -----**<br>


Form B contact ( 2a1b type only ) 

|File No.|Contact rating|Operations|Ambient<br>temperature|
|---|---|---|---|
|E43149|1 A  30 V DC Resistive|100 × 103|85 ℃|
||1 A 277 V AC Resistive|100 × 103|85 ℃|



- ●4 Form A/4 Form A 1 Form B 

Form A contact 

|File No.|Contact rating|Operations|Ambient<br>temperature|
|---|---|---|---|
|E43149|50 A 277 V AC Resistive|10 × 103|85 ℃|
||32 A 277 V AC Resistive|50 × 103|85 ℃|



## Form B contact ( 4a1b type only ) 

|File No.|Contact rating|Operations|Ambient<br>temperature|
|---|---|---|---|
|E43149|1 A  30 V DC Resistive|100 × 103|85 ℃|
||1 A 277 V AC Resistive|100 × 103|85 ℃|



- ■UL ( Approved ) 

- ●4 Form A/4 Form A 1 Form B 

Form A contact 

|File No.|Contact rating|Operations|Ambient<br>temperature|
|---|---|---|---|
|E43149|40 A 480 V AC Resistive|30 × 103|85 ℃|



- ■VDE ( Approved ) 

- ●2 Form A/2 Form A 1 Form B 

Form A contact 

|File No.|Contact rating|Operations|Ambient<br>temperature|
|---|---|---|---|
|40053274|AC-1:63 A ( cosφ ＝ 1 ) 250 V AC|50 × 103|85 ℃|
||AC-1:70 A ( cosφ ＝ 1 ) 250 V AC|30 × 103|85 ℃|
||AC-1:80 A ( cosφ ＝ 1 ) 250 V AC|10 × 103|85 ℃|



## Form B contact ( 2a1b type only ) 

|File No.|Contact rating|Operations|Ambient<br>temperature|
|---|---|---|---|
|40053274|DC-13 24 V DC 1 A, L/R ＝ 48 ms|40 × 103|85 ℃|



- ●4 Form A/4 Form A 1 Form B 

Form A contact 

|File No.|Contact rating|Operations|Ambient<br>temperature|
|---|---|---|---|
|40053274|AC-1:32 A ( cosφ ＝ 1 ) 250 V AC|50 × 103|85 ℃|
||AC-1:40 A ( cosφ ＝ 1 ) 480 V AC|30 × 103|85 ℃|



## Form B contact ( 4a1b type only ) 

|File No.|Contact rating|Operations|Ambient<br>temperature|
|---|---|---|---|
|40053274|DC-13 24 V DC 1 A, L/R ＝ 48 ms|40 × 103|85 ℃|



|Short circuit capability|Short circuit capability|
|---|---|
|File No.|Contact rating|
|40053274|Im ＝ 500 A, U ＝ 250 V AC,<br>Ip＝ 2.6 kA/I2t ＝ 6.5 kA2s(IEC62955)|



## INSULATION CHARACTERISTICS ( IEC61810-1 ) 

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**----- Start of picture text -----**<br>
Item Characteristics<br>Clearance/Creepage distance  Min. 8.0/8.0 mm ( Form A contact )<br>Category of protection  RT II<br>Tracking resistance  PTI 175<br>Insulation material group III a<br>Over voltage category III<br>Rated voltage 250 V<br>Pollution degree 3<br>Type of insulation ( Between contact and coil ) Reinforced insulation ( Form A contact )<br>Type of insulation ( Between open contact ) Full disconnection ( Form A contact )<br>**----- End of picture text -----**<br>


Panasonic Industry Co., Ltd. Electromechanical Control Business Division industrial.panasonic.com/ac/e/ 

ー 10 ー 

> Panasonic Industry Co., Ltd. 2023 ASCTB441E   202309 

Power Relays ( Over 2 A ) HE-R RELAYS 

## GUIDELINES FOR USAGE 

■ For cautions for use, please read " GUIDELINES FOR RELAY USAGE ". https://industrial.panasonic.com/ac/e/control/relay/cautions_use/index.jsp 

## ■Guidelines for HE-R relays usage 

- When coil holding voltage controlled by PWM, check coil holding voltage and operation of relay under the actual condition. 

- If this relay is used as a DC high voltage switch, the final failure mode may be uninterruptible. 

   - In the event that the power cannot be cut off, in the worst case, the fire may spread to the surrounding area, so the power can be turned off within one second. For safety reasons, consider a fail-safe circuit for your equipment. 

- To detect the main contacts welding by Form b contacts, please design the appropriate detection time considering with the release and bounce time. ( 2a1b, 4a1b type ) 

- ●Conditions for usage, transport and storage 

   - 1) Ambient temperature 

   - －40 to ＋55 ℃ 

   - ( When applied coil hold voltage is 35 % V to 110 % V of rated coil voltage. ) 

   - －40 to ＋85 ℃ 

   - ( When applied coil hold voltage is 35 to 50 % of rated coil voltage or storage. ) 

   - ( Please reduce the Max. carrying current 0.5 A/℃ at 

   - ＋65 ℃ to ＋85 ℃ ) 

   - 2)  Humidity 

   - 5 to 85 % RH ( Avoid icing and condensation ) Note) In addition the humidity range depends on temperature. 

   - 3)  Air pressure 86 to 106 kPa 

[ Allowable range of temperature and humidity for usage, transport and storage ] 

- [ 2 Form A/2 Form A 1 Form B ] 

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Humidity (％ RH)<br>85<br>Allowa b le range<br>Avoid con-<br>Avoid icing densation when<br>when used at<br>used at tem-<br>temperatureslower than 0°C peratures higher<br>than 0°C<br>5<br>ｰ40 0 55 65 85<br>Ambient temperature (℃)<br>35 to 110% V 35 to 50% V<br>Coil holding voltage<br>Reduce<br>80 A 0.5 A/℃<br>Max. carrying current<br>70 A<br>**----- End of picture text -----**<br>


[ 4 Form A/4 Form A 1 Form B ] 

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**----- Start of picture text -----**<br>
Humidity (％ RH)<br>85<br>Allowa b le range<br>Avoid con-<br>Avoid icing densation when<br>when used at<br>used at tem-<br>temperatureslower than 0°C peratures higher<br>than 0°C<br>5<br>ｰ40 0 55 65 85<br>Ambient temperature (℃)<br>35 to 110% V 35 to 50% V<br>Coil holding voltage<br>Reduce<br>50 A 0.5 A/℃<br>Max. carrying current<br>40 A<br>**----- End of picture text -----**<br>


Panasonic Industry Co., Ltd. Electromechanical Control Business Division industrial.panasonic.com/ac/e/ 

> Panasonic Industry Co., Ltd. 2023 ASCTB441E   202309 

ー 11 ー 

GUIDELINES FOR POWER, HIGH-CAPACITY DC CUT OFF AND SAFETY RELAYS USAGE 

## ■For cautions for use, please read " GUIDELINES FOR RELAY USAGE ". https://industrial.panasonic.com/ac/e/control/relay/cautions_use/index.jsp 

## Precautions for Coil Input 

## ■Long term current carrying 

A circuit that will be carrying a current continuously for long periods without relay switching operation. ( circuits for emergency lamps, alarm devices and error inspection that, for example, revert only during malfunction and output warnings with form B contacts ) Continuous, longterm current to the coil will facilitate deterioration of coil insulation and characteristics due to heating of the coil itself. For circuits such as these, please use a magnetic-hold type latching relay. If you need to use a single stable relay, use a sealed type relay that is not easily affected by ambient conditions and make a failsafe circuit design that considers the possibility of contact failure or disconnection. 

## ■DC Coil operating power 

Steady state DC current should be applied to the coil. The wave form should be rectangular. If it includes ripple, the ripple factor should be less than 5 %. 

However, please check with the actual circuit since the electrical characteristics may vary. The rated coil voltage should be applied to the coil and the set/reset pulse time of latching type relay differs for each relays, please refer to the relay's individual specifications. 

## ■Coil connection 

When connecting coils of polarized relays, please check coil polarity ( ＋, － ) at the internal connection diagram ( Schematic ). If any wrong connection is made, it may cause  unexpected malfunction, like abnormal heat, fire and so on, and circuit do not work. Avoid impressing voltages to the set coil and reset coil at the same time. 

## ■Maximum allowable voltage and temperature rise 

Proper usage requires that the rated coil voltage be impressed on the coil. Note, however, that if a voltage greater than or equal to the maximum continuous voltage is impressed on the coil, the coil may burn or its layers short due to the temperature rise. Furthermore, do not exceed the usable ambient temperature range listed in the catalog. 

- ●Operate voltage change due to coil temperature rise In DC relays, after continuous passage of current in the coil, if the current is turned OFF, then immediately turned ON again, due to the temperature rise in the coil, the operate voltage will become somewhat higher. Also, it will be the same as using it in a higher temperature atmosphere. The resistance/temperature relationship for copper wire is about 0.4 % for 1 ℃, and with this ratio the coil resistance increases. That is, in order to operate of the relay, it is necessary that the voltage be higher than the operate voltage and the operate voltage rises in accordance with the increase in the resistance value. However, for some polarized relays, this rate of change is considerably smaller. 

Panasonic Industry Co., Ltd. Electromechanical Control Business Division industrial.panasonic.com/ac/e/ 

> Panasonic Industry Co., Ltd. 2023 ASCTB412E   202301 

ー 12 ー 

GUIDELINES FOR POWER, HIGH-CAPACITY DC CUT OFF AND SAFETY RELAYS USAGE 

## Ambient Environment 

■Usage, Transport, and Storage Conditions During usage, storage, or transportation, avoid locations subjected to direct sunlight and maintain normal temperature, humidity and pressure conditions. 

- ●Temperature/Humidity/Pressure 

- When transporting or storing relays while they are tube packaged, there are cases the temperature may differ from the allowable range. In this case be sure to check the individual specifications. 

Also allowable humidity level is influenced by temperature, please check charts shown below and use relays within mentioned conditions. ( Allowable temperature values differ for each relays, please refer to the relay's individual specifications. ) 

- 1)  Temperature: 

   - The tolerance temperature range differs for each relays, please refer to the relay's individual specifications 

- 2)  Humidity: 5 to 85 % RH 

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**----- Start of picture text -----**<br>
Humidity (％ RH)<br>85<br>Allowa b le range<br>Avoid icing Avoid con-<br>when used at densation when<br>temperatures used at tem-<br>lower than 0°C peratures higher<br>than 0°C<br>5<br>-40 0 85<br>Ambient temperature (℃)<br>**----- End of picture text -----**<br>


- 3)  Pressure: 86 to 106 kPa 

- ●Dew condensation 

Condensation occurs when the ambient temperature drops suddenly from a high temperature and humidity, or the relay is suddenly transferred from a low ambient temperature to a high temperature and humidity. Condensation causes the failures like insulation deterioration, wire disconnection and rust etc. Panasonic Industry Co., Ltd. does not guarantee the failures caused by condensation. 

The heat conduction by the equipment may accelerate the cooling of device itself, and the condensation may occur. 

Please conduct product evaluations in the worst condition of the actual usage. ( Special attention should be paid when high temperature heating parts are close to the device. Also please consider the condensation may occur inside of the device. ) 

## ●Icing 

Condensation or other moisture may freeze on relays when the temperature become lower than 0 ℃.This icing causes the sticking of movable portion, the operation delay and the contact conduction failure etc. Panasonic Industry Co., Ltd. does not guarantee the failures caused by the icing. 

The heat conduction by the equipment may accelerate the cooling of relay itself and the icing may occur. Please conduct product evaluations in the worst condition of the actual usage. 

- ●Low temperature and low humidity 

- The plastic becomes brittle if the relay is exposed to a low temperature, low humidity environment for long periods of time. 

- ●High temperature and high humidity 

Storage for extended periods of time ( including transportation periods ) at high temperature or high humidity levels or in atmospheres with organic gases or sulfide gases may cause a sulfide film or oxide film to form on the surfaces of the contacts and/or it may interfere with the functions. Check out the atmosphere in which the units are to be stored and transported. 

## ●Package 

In terms of the packing format used, make every effort to keep the effects of moisture, organic gases and sulfide gases to the absolute minimum. 

## ●Silicon 

When a source of silicone substances ( silicone rubber, silicone oil, silicone coating materials and silicone filling materials etc. ) is used around the relay, the silicone gas ( low molecular siloxane etc. ) may be produced. This silicone gas may penetrate into the inside of the relay. When the relay is kept and used in this condition, silicone compound may adhere to the relay contacts which may cause the contact failure. Do not use any sources of silicone gas around the relay ( Including plastic sealed types ). 

- ●NOx Generation 

When relay is used in an atmosphere high in humidity to switch a load which easily produces an arc, the NOx created by the arc and the water absorbed from outside the relay combine to produce nitric acid. 

This corrodes the internal metal parts and adversely affects operation. 

Avoid use at an ambient humidity of 85 % RH or higher ( at 20 ℃ ). If use at high humidity is unavoidable, please contact our sales representative. 

Panasonic Industry Co., Ltd. Electromechanical Control Business Division industrial.panasonic.com/ac/e/ 

ASCTB412E   202301 

ー 13 ー 

Panasonic Industry Co., Ltd. 2023 

GUIDELINES FOR POWER, HIGH-CAPACITY DC CUT OFF AND SAFETY RELAYS USAGE 

## Others 

## ■Cleaning 

- Although the environmentally sealed type relay ( plastic sealed type, etc. ) can be cleaned, avoid immersing the relay into cold liquid ( such as cleaning solvent ) immediately after soldering. Doing so may deteriorate the sealing performance. 

- Cleaning with the boiling method is recommended ( The temperature of cleaning liquid should be 40 ℃ or lower ). Avoid ultrasonic cleaning on relays. Use of ultrasonic cleaning may cause breaks in the coil or slight sticking of the contacts due to ultrasonic energy. 

Please refer to "the latest product specifications" when designing your product. 

- •Requests to customers: https://industrial.panasonic.com/ac/e/salespolicies/ 

Panasonic Industry Co., Ltd. Electromechanical Control Business Division industrial.panasonic.com/ac/e/ 

ASCTB412E   202301 

ー 14 ー 

Panasonic Industry Co., Ltd. 2023 

■ Global Sales Network Information: industrial.panasonic.com/ac/e/salesnetwork 

Electromechanical Control Business Division 1006, Oaza Kadoma, Kadoma-shi, Osaka 571-8506, Japan industrial.panasonic.com/ac/e/ 

Specifications are subject to change without notice. 

©Panasonic Industry Co., Ltd. 2023 

2023.9 

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Updated at June 7, 2026
Panasonic Industry is a global leader in the design and manufacture of high-quality electronic components. Renowned for a commitment to continuous innovation, the company provides the essential building blocks that empower modern engineering. From industrial automation to consumer electronics, Panasonic's components are trusted worldwide for their outstanding reliability, efficiency, and long-term performance. The extensive portfolio is anchored by a massive selection of passive components, featuring an industry-leading range of aluminium electrolytic, film, and polymer capacitors. Alongside these advanced capacitance solutions, engineers rely on Panasonic's robust power inductors and a highly versatile array of electromechanical devices, including solid-state, power, and signal relays engineered to excel in demanding environments. Beyond core passives and switching solutions, the offering encompasses critical circuit protection devices such as TVS varistors and NTC thermistors, as well as sophisticated thermal management materials. Panasonic also delivers precision light and motion sensors, highly reliable batteries, and advanced Bluetooth and WLAN connectivity modules, providing a comprehensive ecosystem of components to support next-generation technological design.
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