G9EC-1-DC24

G9EC-1 DC Power Relays (200-A Models) 

G 9 E C 1 

## **DC Power Relays Capable of Interrupting High-voltage, High-current Loads** 

- A compact relay (98 x 44 x 86.7 mm (L x W x H)) capable of switching 400-V 200-A DC loads. (Capable of interrupting 1,000 A at 400 VDC max.) 

- The switching section and driving section are gas-injected and hermetically sealed, allowing these compact relays to interrupt high-capacity loads. The sealed construction also requires no arc space, saves space, and helps ensure safe applications. 

- Downsizing and optimum design allow no restrictions on the mounting direction. 

- Terminal Cover is also available for industrial applications. 

- UL/CSA standard UL508 approved. 

## ~~CT~~ **RoHS Compliant** 

Refer to " **DC Power Relays Common Precautions** ". 

## ■ **Model Number Legend** 

G9MC-@ -@ - @- @ **1. Number of Poles** —1 —2 —3 —4 1: 1 pole 

## **3. Coil Terminals** 

1: 1 pole B : M3.5 screw terminals (standard) **2. Contact Form** Blank: Lead wire output 

**4. Special Functions** 

Blank: SPST-NO 

## ■ **List of Models** 

|Models|Terminals|Terminals|Contact form|Coil rated voltage|Model|
|---|---|---|---|---|---|
||Coil terminals|Contact terminals||||
|Switching/current<br>conduction models|Screw terminals|Screw terminals|SPST-NO|12 VDC<br>24 VDC<br>48 VDC<br>60 VDC<br>100 VDC|G9EC-1-B|
||Lead wire||||G9EC-1|



Note 1. Two M8 nuts are provided for the contact terminal connection. 

Note 2. Two M3.5 screws are provided for the coil terminal connection. 

## ■ **Ratings** 

## ● **Coil** 

|●**Coil**|||||||
|---|---|---|---|---|---|---|
|Item<br>Rated voltage|Rated current<br>(mA)|Coil resistance<br>(Ω)|Must-operate voltage<br>(V)|Must-release voltage<br>(V)|Maximum voltage<br>(V)|Power consumption<br>(W)|
|12 VDC|938|12.8|75% max. of rated<br>voltage|8% min. of rated<br>voltage|110% of rated<br>voltage (at 23•C<br>within 10 minutes)|Approx. 11|
|24 VDC|469|51.2|||||
|48 VDC|234|204.8|||||
|60 VDC|188|320.0|||||
|100 VDC|113|888.9|||||



Note 1. The figures for the rated current and coil resistance are for a coil temperature of 23•C and have a tolerance of ±10%. Note 2. The figures for the operating characteristics are for a coil temperature of 23•C. 

Note 3. The figure for the maximum voltage is the maximum voltage that can be applied to the relay coil. 

## ● **Contacts** 

|●**Contacts**||
|---|---|
|Item|Resistive load|
||G9EC-1(-B)|
|Rated load|200 A at 400 VDC|
|Rated carry current|200 A|
|Maximum switching voltage|400 V|
|Maximum switching current|200 A|



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G9EC-1 

**DC Power Relays (200-A Models)** 

G 9 E C 1 

## ■ **Characteristics** 

|■**Characteristics**|■**Characteristics**||
|---|---|---|
|Item<br>Model||G9EC-1(-B)|
|Contact resistance *1||30 mΩmax. (0.2 mΩtypical)|
|Contact voltage drop||0.1 V max. (for a carry current of 200 A)|
|Operate time||50 ms max.|
|Release time||30 ms max.|
|Insulation<br>resistance *2|Between coil and<br>contacts|1,000 MΩmin.|
||Between contacts of<br>the same polarity|1,000 MΩmin.|
|Dielectric strength|Between coil and<br>contacts|2,500 VAC, 1 min|
||Between contacts of<br>the same polarity|2,500 VAC, 1 min|
|Impulse withstand|voltage *3|4,500 V|
|Vibration<br>resistance|Destruction|10 to 55 to 10 Hz 0.75-mm single amplitude (Acceleration: 2.94<br>to 88.9 m/s2)|
||Malfunction|10 to 55 to 10 Hz 0.75-mm single amplitude (Acceleration: 2.94<br>to 88.9 m/s2)|
|Shock resistance|Destruction|490 m/s2|
||Malfunction|196 m/s2|
|Mechanical endurance *4||200,000 operations min.|
|Electrical endurance (resistive load) *5||400 VDC, 200 A, 3,000 operations min.|
|Short-time carry current||300 A (15 min)|
|Maximum interruption current||1,000 A at 400 VDC (10 times)|
|Overload interruption||700 A at 400 VDC (40 times min.)|
|Reverse polarity interruption||-200 A at 200 VDC (1,000 times min.)|
|Ambient operating temperature||-40 to 50•C (with no icing or condensation)|
|Ambient operating humidity||5% to 85%|
|Weight (Including accessories)||Approx. 560 g|



Note. The above values are initial values at an ambient temperature of 23•C unless otherwise specified. 

*1. The contact resistance was measured with 1 A at 5 VDC using the voltage drop method. 

*2. The insulation resistance was measured with a 500-VDC megohmmeter. 

*3. The impulse withstand voltage was measured with a JEC-212 (1981) standard impulse voltage waveform (1.2 x 50 μs). 

*4. The mechanical endurance was measured at a switching frequency of 3,600 operations/hr. 

*5. The electrical endurance was measured at a switching frequency of 60 operations/hr. 

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G9EC-1 

**DC Power Relays (200-A Models)** 

## ■ **Engineering Data** 

## **G9EC-1(-B) Switching/Current Conduction Models** 

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● Maximum Switching Capacity ● Electrical Endurance (Switching  ● Electrical Endurance (Interruption<br>Performance) Performance)<br>1,000 10 1,000<br>500 5 500<br>300 3 Switching400-VDC 300<br>100 resistive load Interrupting<br>DC resistive load (positive direction) 400-VDC<br>50 1 100 resistive load<br>30 (positive direction)<br>0.5 50<br>10 0.3 30<br>5<br>3<br>0.1 10<br>1 0.05 5<br>0.5 0.03 3<br>0.3<br>0.1 0.01 1<br>10 30 50 100 300 500 1,000 10 30 50 100 300 500 1,000 10 50 100 500 1,000 10,000<br>Switching voltage (V) Switching current (A) Switching current (A)<br>● Carry Current vs Energizing Time ● Must-operate Voltage and  ● Time Characteristic Distributions<br>Must-release Voltage Distributions<br>100,000 30 30<br>Sample: G9EC-1 Must-operate voltage Sample: G9EC-1 Operate time<br>Number: 35 Number: 32<br>Must-release voltage Release time<br>25 25<br>10,000<br>20 20<br>1,000 15 15<br>10 10 G<br>100 9<br>5 5 E<br>C<br>10 0 1<br>100 300 500 700 1,000 0 10 20 30 40 50 60 70 80 0.0 2.0 4.0 6.0 8.0 10.0 12.0 14.0 16.0 18.0<br>Carry current (A) Percentage of rated voltage (%) Time (ms)<br>● Vibration Malfunction ● Vibration Resistance<br>1 5.0<br>Sample: G9EC-1 Sample: G9EC-1<br>0.9 Number: 5 4.0 Number: 5<br>Unconfirmed area<br>0.8 3.0<br>0.7 2.0<br>0.6 1.0 Must-release voltage<br>0.5 0.0<br>Confirmed area Must-operate voltage<br>0.4 -1.0<br>0.3 -2.0<br>0.2 -3.0<br>0.1 -4.0<br>0 -5.0<br>1 3 5 10 30 50 100 Start After test<br>Frequency (Hz) Characteristics were measured after applying vibration<br>at a frequency of 10 to 55 Hz (single amplitude of 0.75<br>mm) to the test piece (not energized) for 2 hours each<br>in 3 directions. The percentage rate of change is the<br>average value for all of the samples.<br>● Shock Malfunction ● Shock Resistance<br>Unit: m/sSample: G9EC-1 [2] Y 1,000 ZZ' 5.04.0 Sample: G9EC-1Number: 5<br>Number: 5<br>X 3.0<br>800 Y' Y X' 2.0<br>X 600 Z<br>400 1.0 Must-operate voltage<br>200 0.0<br>Must-release voltage<br>�1.0<br>200<br>�2.0<br>400<br>Z' Deenergized 600 X' �3.0<br>800 �4.0<br>Y'1,000 Energized �5.0 Start After test<br>The value at which malfunction occurred  Characteristics were measured after applying a shock<br>was measured after applying shock to the  of 490 m [2] /s to the test piece 3 times each in 6<br>test piece 3 times each in 6 directions  directions along 3 axes. The percentage rate of<br>along 3 axes. change is the average value for all of the samples.<br>G9EC-1-B12VDC<br>1(+)<br>MADE IN JAPAN2(-) Lot No. 1362K1-0001200A  400VDCCONTACT:<br>4 Operations<br>Operations (× 10<br>Switching current (A)<br>Energizing time (s) Number of Relays Number of contacts<br>-<br>Single amplitude (mm) Rate of change (%)<br>Rate of change (%)<br>�<br>**----- End of picture text -----**<br>


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G9EC-1 

**DC Power Relays (200-A Models)** 

## ■ **Dimensions** (Unit: mm) 

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● Models with Screw Terminals Terminal Arrangement/<br>Internal Connections<br>G9EC-1-B<br>(TOP VIEW)<br>7 1 (+)<br>32 44<br>2-M3.5<br>2 (−)<br>2<br>28.6 7 8<br>Two, 6.2-dia. holes 72 Note: Be sure to connect terminals with the correct<br>86 polarity. Coils do not have polarity.<br>98 Mounting Hole Dimensions<br>KS (TOP VIEW)<br>iw<br>26 2-M8 26.7 Two, M6 or 6.5-dia. holes<br>2(−) 1(+)<br>7 8 44.2 G9EC-1-B12VDCMADE IN JAPAN CONTACT:200A  400VDC (Terminalheight)68.6 86.7 86 [±0.1]<br>(Coil terminal Lot No. 1362K1-0001<br>Dimension (mm) Tolerance (mm) height)<br>10 or lower ±0.3 a 7 10.5<br>10 to 50 ±0.5<br>50 or higher ±1 32 [±0.1]<br>● Models with Lead Wires Terminal Arrangement/<br>G G9EC-1 Internal Connections<br>(TOP VIEW)<br>9 1 (+)+))<br>E<br>C 32 44<br>1<br>2 (−)−))<br>2<br>28.6 7 8<br>Two, 6.2-dia. holes 72 Note: Be sure to connect terminals with the correct<br>86 polarity. Coils do not have polarity.<br>98 Mounting Hole Dimensions<br>(TOP VIEW)<br>all<br>26 230 [±20] 2-M8 26.7 Two, M6 or 6.5-dia. holes<br>(10)<br>2(−) 1(+)<br>7 8 G9EC-112VDCMADE IN JAPAN CONTACT:200A  400VDC (Terminal68.6 86.7 86 [±0.1]<br>height)<br>Lot No. 1362K1-0001<br>Dimension (mm) Tolerance (mm)<br>10 or lower ±0.3 10.5<br>10 to 50 ±0.5<br>50 or higher ±1<br>== iLal oi ll | 32 [±0.1]<br>■ Options  (Unit: mm)<br>● Terminal Cover<br>P9EC-C * Dimensions of cutout for wiring.<br>Note: Be sure to remove the cutouts<br>44<br>for wiring that are located in the<br>wiring outlet direction before<br>installing the Terminal Cover.<br>> a, El<br>18* 20 18*<br>30<br>* * Dimension (mm)(mm)mm)) Tolerance (mm)(mm)mm))<br>28 [*] 28 27 10 or lower ±0.3<br>VO AE 74 38 10 to 50 ±0.5<br>yo III EY 44 50 or highergherher ±1<br>MADE IN JAPANP9EC-C<br>>PC<<br>G9EC-1-B<br>12VDC<br>G9EC-1-B<br>12VDC<br>CONTACT:200A  400VDC<br>MADE IN JAPANLot No. 1362K1-0001<br>200A  400VDCCONTACT:<br>MADE IN JAPANLot No. 1362K1-0001<br>1(+)<br>2(−)<br>1(+)<br>2(−)<br>-<br>>PC<MADE IN JAPANP9EC-C<br>**----- End of picture text -----**<br>


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Terminal Arrangement/<br>Internal Connections<br>(TOP VIEW)<br>1 (+)+))<br>2 (−)−))<br>7 8<br>Note: Be sure to connect terminals with the correct<br>polarity. Coils do not have polarity.<br>**----- End of picture text -----**<br>


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Dimension (mm)(mm)mm)) Tolerance (mm)(mm)mm))<br>10 or lower ±0.3<br>10 to 50 ±0.5<br>50 or highergherher ±1<br>**----- End of picture text -----**<br>


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G9EC-1 

**DC Power Relays (200-A Models)** 

G 9 E C 1 

- Application examples provided in this document are for reference only. In actual applications, confirm equipment functions and safety before using the product. 

- Consult your OMRON representative before using the product under conditions which are not described in the manual or applying the product to nuclear control systems, railroad systems, aviation systems, vehicles, combustion systems, medical equipment, amusement machines, safety equipment, and other systems or equipment that may have a serious influence on lives and property if used improperly. Make sure that the ratings and performance characteristics of the product provide a margin of safety for the system or equipment, and be sure to provide the system or equipment with double safety mechanisms. 

**Note: Do not use this document to operate the Unit.** 

**OMRON Corporation Electronic and Mechanical Components Company** 

**Contact:  www.omron.com/ecb** 

**Cat. No. J188-E1-01** 0812(0207)(O) 

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