406190120000

40 Series - Miniature PCB/Plug-in relays 8 - 10 - 16 A 

## Features 

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40.31 40.51<br>**----- End of picture text -----**<br>


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40.52<br>**----- End of picture text -----**<br>


1 & 2 Pole relay range 40.31 - 1 Pole 10 A (3.5 mm pin pitch) 40.51 - 1 Pole 10 A (5 mm pin pitch) 40.52 - 2 Pole   8 A (5 mm pin pitch) 

PCB mount 

- direct or via PCB socket 35 mm rail mount 

- via screw and screwless sockets 

- DC coils (standard or sensitive) & AC coils 

- Cadmium Free contact material 

- 8 mm, 6 kV (1.2/50 µs) isolation, coil-contacts 

- UL Listing (certain relay/socket combinations) 

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•<br> 3.5 mm contact pin pitch<br>**----- End of picture text -----**<br>


- 1 Pole 10 A 

- PCB or 95 series sockets 

- 5 mm contact pin pitch 

- 1 Pole 10 A 

- PCB or 95 series sockets 

   - 5 mm contact pin pitch 

   - 2 Pole 8 A 

   - PCB or 95 series sockets 

- Flux proof: RT II standard, (RT III option) 

- 95 series sockets 

- Coil EMC suppression 

- Timer accessories 86 series 

**==> picture [504 x 402] intentionally omitted <==**

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|||||||
|---|---|---|---|---|---|
|OR UL HORSEPOWER UL HORSEPOWERORSEPOWER|AND PILOT DUTY PILOT DUTYILOT DUTY DUTYUTY|RATINGS|Copper side view|Copper side view|Copper side view|
|EE “General technical information” page  “General technical information” page|V|
|Contact specification|
|Contact configuration|1 CO (SPDT)|1 CO (SPDT)|2 CO (DPDT)|
|Rated current/Maximum peak current|A|10/20|10/20|8/15|
|Rated voltage/Maximum switching voltage|V AC|250/400|250/400|250/400|
|Rated load AC1|VA|2,500|2,500|2,000|
|Rated load AC15 (230 V AC)|VA|500|500|400|
|Single phase motor rating (230 V AC)|kW|0.37|0.37|0.3|
|Breaking capacity DC1: 30/110/220 V|A|10/0.3/0.12|10/0.3/0.12|8/0.3/0.12|
|Minimum switching load|mW (V/mA)|300 (5/5)|300 (5/5)|300 (5/5)|
|Standard contact material|AgNi|AgNi|AgNi|
|Coil specification|
|Nominal voltage (UN)|V AC (50/60 Hz)|6 - 12 - 24 - 48 - 60 - 110 - 120 - 230 - 240|
|V DC|5 - 6 - 7 - 9 - 12 - 14 - 18 - 21 - 24 - 28 - 36 - 48 - 60 - 90 - 110 - 125|
|Rated power AC/DC/sens. DC|VA (50 Hz)/W/W|1.2/0.65/0.5|1.2/0.65/0.5|1.2/0.65/0.5|
|Operating range|AC|(0.8…1.1)UN|(0.8…1.1)UN|(0.8…1.1)UN|
|DC/sens. DC|(0.73…1.5)UN/(0.73…1.75)UN|(0.73…1.5)UN/(0.73…1.75)UN|(0.73…1.5)UN/(0.73…1.75)UN|
|Holding voltage|AC/DC|0.8 UN /0.4 UN|0.8 UN /0.4 UN|0.8 UN /0.4 UN|
|Must drop-out voltage|AC/DC|0.2 UN /0.1 UN|0.2 UN /0.1 UN|0.2 UN /0.1 UN|
|Technical data|
|Mechanical life AC/DC|cycles|10 · 106/20 · 106|10 · 106/20 · 106|10 · 106/20 · 106|
|Electrical life at rated load AC1|cycles|200 · 103|200 · 103|100 · 103|
|Operate/release time|ms|7/3 - (12/4 sensitive)|7/3 - (12/4 sensitive)|7/3 - (12/4 sensitive)|
|Insulation between coil and contacts (1.2/50 µs)|kV|6 (8 mm)|6 (8 mm)|6 (8 mm)|
|Dielectric strength between open contacts|V AC|1,000|1,000|1,000|
|Ambient temperature range|°C|–40…+85|–40…+85|–40…+85|
|Environmental protection|RT II**|RT II**|RT II**|
|Approvals (according to type)|

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


_FOR UL HORSEPOWER UL HORSEPOWERORSEPOWER AND PILOT DUTY PILOT DUTYILOT DUTY DUTYUTY RATINGS SEE “General technical information” page  “General technical information” page_ V 

** See general technical information “Guidelines for automatic flow solder processes” page II . 

1 

## 40 Series - Miniature PCB/Plug-in relays 8 - 10 - 16 A 

## Features 

## 40.61 

## 40.xx.6 

## 40.61     - 1 Pole 16 A (5 mm pin pitch) 40.xx.6  - Bistable versions of the 40.31, 40.51, 40.52 & 40.61 relays 

PCB mount 

- direct or via PCB socket 

35 mm rail mount 

- via screw and screwless sockets 

- DC coils & AC coils 

- Cadmium Free option available 

- • 8 mm, 6 kV (1.2/50 µs) isolation, coil-contacts 

- • UL Listing (certain 40.61 relay/socket combinations) 

- Flux proof: RT II standard, (RT III option) 

- 5 mm contact pin pitch 

- • 1 Pole 16 A 

- PCB or 95 series sockets 

   - Bistable (single coil) versions of 40.31/51/52/61 

   - PCB or 95 series sockets 

- 95 series sockets 

- Coil EMC suppression 

- Timer accessories 86 series 

Bistable version (1 coil) types: 

- 40.31.6... 40.51.6... 40.52.6... 40.61.6... 

- For wiring diagrams see page 8 

|_FOR UL HORSEPOWER AND PILOT DUTY RATINGS_||Copper side view|||||
|---|---|---|---|---|---|---|
|_SEE “General technical information” page_V|||||||
|Contact specification|||||||
|Contact configuration||1 CO (SPDT)|||||
|Rated current/Maximum peak current|A|16/30*|||||
|Rated voltage/Maximum switching voltage V AC<br>Rated load AC1|V AC<br>VA|250/400<br>4,000|||See relays<br>40.31||
|Rated load AC15 (230 V AC)|VA|750|||40.51||
|Single phase motor rating (230 V AC)|kW|0.55|||40.52||
|Breaking capacity DC1: 30/110/220 V|A|16/0.3/0.12|||40.61||
|Minimum switching load<br>mW (V/mA)||500 (10/5)|||||
|Standard contact material||AgCdO|||||
|Coil specification|||||||
|Nominal voltage (UN)<br>V AC (50/60 Hz)|V AC (50/60 Hz)|6 - 12 - 24 - 48 - 60 - 110 - 120 - 230 - 240|||5 - 6 - 12 - 24 - 48 - 110||
|V DC|V DC|***See table|||5 - 6 - 12 - 24 - 48 - 110||
|Rated power AC/DC/sens. DC<br>VA (50 Hz)/W/W||1.2/0.65/0.5|||1.0/1.0/—||
|Operating range|AC|(0.8…1.1)UN|||(0.8…1.1)UN||
|DC/sens. DC|DC/sens. DC|(0.73…1.5)UN/(0.8…1.5)UN|||(0.8…1.1)UN/—||
|Holding voltage<br>AC/DC||0.8 UN /0.4 UN|||—||
|Must drop-out voltage<br>AC/DC<br>Technical data<br>Mechanical life AC/DC<br>cycles<br>Electrical life at rated load AC1<br>cycles<br>Operate/release time<br>ms<br>Insulation between coil and contacts (1.2/50 µs) kV<br>Dielectric strength between open contacts V AC<br>Ambient temperature range<br>°C<br>Environmental protection||0.2 UN /0.1 UN<br>—<br>10 · 10<br>6/20 · 10<br>6<br>See relays<br>100 · 10<br>3<br>40.31<br>7/3 - (12/4 sensitive)<br>40.51<br>6 (8 mm)<br>40.52<br>1,000<br>40.61<br>–40…+85<br>Min. impulse duration<br>RT II**<br>≥20 ms<br>~~=~~<br>GEO®®&®~~@~~<br>~~EI®~~Wwa<br>CO|||||
|Approvals(according to type)||GEO®®&®~~@~~|~~@~~||~~EI®~~Wwa|CO|



_FOR UL HORSEPOWER AND PILOT DUTY RATINGS SEE “General technical information” page_ V 

* With the AgSnO2 material the maximum peak current is 120 A - 5 ms on normally open contact. 

*** Nominal voltage (UN): 5 - 6 - 7 - 9 - 12 - 14 - 18 - 21 - 24 - 28 - 36 - 48 - 60 - 90 - 110  - 125 V DC 

** See general technical information “Guidelines for automatic flow solder processes” page II. 

2 

## 40 Series - Miniature PCB/Plug-in relays 8 - 10 - 16 A 

## Features 

1 Pole relay range 40.11 - 1 Pole 10 A (Flat pack) 40.11-2016 - 1 Pole 16 A (Flat pack) 40.41 - 1 Pole 10 A (Vertical) PCB mount - direct or via PCB socket (40.41 version) 

- DC coils 

- Cadmium Free option available 

- 8 mm, 6 kV (1.2/50 µs) isolation, coil-contacts 

- 40.41 - NO version available 

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40.11<br>**----- End of picture text -----**<br>


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• 1 Pole 10 A<br>•<br> Flat pack<br>**----- End of picture text -----**<br>


- PCB mount 

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40.11-2016 40.41<br>| |<br>• 1 Pole 16 A • 1 Pole 10 A<br>• Flat pack • Vertical<br>• PCB mount • PCB or 95 series socket<br>**----- End of picture text -----**<br>


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40.11<br>**----- End of picture text -----**<br>


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40.41<br>**----- End of picture text -----**<br>


|_FOR UL HORSEPOWER AND PILOT D_|_DUTY RATINGS_|_DUTY RATINGS_|||Copper side view|Copper side view|Copper side view|
|---|---|---|---|---|---|---|---|
|_SEE “General technical information” page_V||||||||
|Contact specification||||||||
|Contact configuration|||||1 CO (SPDT)|1 CO (SPDT)|1 CO (SPDT)|
|Rated current/Maximumpeak current||||A|10/20|16/30|10/20|
|Rated voltage/Maximum switching voltage|||V AC|V AC|250/400|250/400|250/400|
|Rated load AC1||||VA|2,500|4,000|2,500|
|Rated load AC15 (230 V AC)||||VA|500|750|500|
|Single phase motor rating (230 V AC)||||kW|0.37|0.55|0.37|
|Breaking capacity DC1: 30/110/220 V||Breaking capacity DC1: 30/110/220 V||A|10/0.3/0.12|16/0.3/0.12|10/0.3/0.12|
|Minimum switching load|mW (V/mA)|mW (V/mA)|||300 (5/5)|500 (10/5)|300 (5/5)|
|Standard contact material|||||AgCdO|AgCdO|AgCdO|
|Coil specification||||||||
|Nominal voltage (UN)|V AC (50/60 Hz)|||V AC (50/60 Hz)|—|—|—|
||||V DC|V DC|6 - 12 - 24 - 48 - 60|6 - 12 - 24 - 48|6 - 12 - 24 - 48 - 60|
|Rated power AC/DC/sens. DC|VA (50 Hz)/W/W||||—/—/0.5|—/—/0.5|—/—/0.5|
|Operating range||||AC|—|—|—|
||DC/sens. DC|||DC/sens. DC|—/(0.73…1.75)UN|—/(0.73…1.5)UN|—/(0.73…1.75)UN|
|Holding voltage||AC/DC|||—/0.4 UN|—/0.4 UN|—/0.4 UN|
|Must drop-out voltage||AC/DC|||—/0.1 UN|—/0.1 UN|—/0.1 UN|
|Technical data||||||||
|Mechanical life AC/DC|||cycles||—/20 · 10<br>6|—/20 · 10<br>6|—/20 · 10<br>6|
|Electrical life at rated load AC1|||cycles||200 · 10<br>3|50 · 10<br>3|200 · 10<br>3|
|Operate/release time||||ms|12/4|12/4|12/4|
|Insulation between coil and contacts (1.2/50 µs)||||kV|6 (8 mm)<br>kV|6 (8 mm)|6 (8 mm)|
|Dielectric strength between open contacts|||V AC|V AC|1,000|1,000|1,000|
|Ambient temperature range||||°C|–40…+70|–40…+70|–40…+70|
|Environmental protection|||||RT I|RT I|RT I|
|Approvals(according to type)||||||(P<<br>cAlus||



_FOR UL HORSEPOWER AND PILOT DUTY RATINGS SEE “General technical information” page_ V 

3 

40 Series - Miniature PCB/Plug-in relays 8 - 10 - 16 A 

## Ordering information 

Example: 40 series PCB relay, 2 CO (DPDT), 230 V AC coil. 

A B C D 4 0 . 5 2 . 8 . 2 3 0 . 0 0 0 0 

Series 

Type 

1 = PCB - 3.5 mm pinning, flat 

3 = PCB - 3.5 mm pinning 

4 = PCB - 3.5 mm pinning 

- 5 = PCB - 5 mm pinning 

6 = PCB - 5 mm pinning 

No. of poles 

1 = 1 pole for: 40.11, 10 A/16 A 40.31, 10 A 40.41, 10 A 40.51, 10 A 40.61, 16 A 

A: Contact material 0 = Standard AgNi for 40.31/51/52, AgCdO for 40.61 

- 2 = AgCdO (standard for 40.11/41) 

- 4 = AgSnO2 

5 = AgNi + Au (5 µm) 

B: Contact circuit 

- 0 = CO (nPDT) 

- 3 = NO (nPST) 

D: Special versions 

- 0 = Standard 

- 1 = Wash tight (RT III) 

- 3 = High temperature (+ 125 °C) wash tight 

C: Options 

- 0   = None 

- 16 = With rated current 16 A (for 40.11) 

2 = 2 pole for: 40.52,   8 A 

Coil version 

6 = AC/DC bistable 

7 = Sensitive DC 

8 = AC (50/60 Hz) 

9 = DC 

Coil voltage See coil specifications 

Selecting features and options: only combinations in the same row are possible. Preferred selections for best availability are shown in bold. 

|Type|Coil version|A|B|C|D|
|---|---|---|---|---|---|
|40.11|sensitive DC|**2**- 4|**0**|**0**|**0**|
|40.11|sensitive DC|**2** - 4|0|16|/|
|40.41|sensitive DC|0 -**2**|**0** - 3|**0**|**0**|
|40.31/51|AC-sens. DC|**0** - 2 - 5|**0** - 3|**0**|**0** - 1|
|40.31/51|DC|**0** - 2 - 5|**0** - 3|**0**|**0** - 1 - 3|
|40.52|AC-sens. DC|**0** - 2 - 5|**0** - 3|**0**|**0** - 1|
|40.52|DC|**0** - 2 - 5|**0** - 3|**0**|**0** - 1 - 3|
|40.61|AC-sens. DC|**0** - 4|**0** - 3|**0**|**0** - 1|
|40.61|DC|**0** - 4|**0** - 3|**0**|**0** - 1 - 3|
|40.31/51/ <br>52/61|bistable|**0**|**0**|**0**|**0**|



4 

## 40 Series - Miniature PCB/Plug-in relays 8 - 10 - 16 A 

## Technical data 

|Insulation according to EN 61810-1|Insulation according to EN 61810-1|Insulation according to EN 61810-1|Insulation according to EN 61810-1|Insulation according to EN 61810-1|Insulation according to EN 61810-1|
|---|---|---|---|---|---|
|||1pole||2pole||
|Nominal voltage of supplysystem<br>V AC||230/400||230/400||
|Rated insulation voltage<br>V AC||250|400|250|400|
|Pollution degree||3|2|3|2|
|Insulation between coil and contact set||||||
|Type of insulation||Reinforced(8 mm)||Reinforced(8 mm)||
|Overvoltage category||III||III||
|Rated impulse voltage<br>kV(1.2/50µs)||6||6||
|Dielectric strength<br>V AC||4,000||4,000||
|Insulation between adjacent contacts||||||
|Type of insulation||—||Basic||
|Overvoltage category||—||II||
|Rated impulse voltage<br>kV(1.2/50µs)||—||2.5||
|Dielectric strength<br>V AC||—||2,000||
|Insulation between open contacts||||||
|Type of disconnection||Micro-disconnection||Micro-disconnection||
|Dielectric strength<br>V AC/kV (1.2/50 µs)||1,000/1.5||1,000/1.5||
|Conducted disturbance immunity||||||
|Burst(5...50)ns, 5 kHz, on A1 - A2||EN 61000-4-4||level 4(4 kV)||
|Surge (1.2/50 µs) on A1 - A2 (differential mode)||EN 61000-4-5||level 3 (2 kV)||
|Other data||||||
|Bounce time: NO/NC<br>ms||2/5||||
|Vibration resistance(5…55)Hz: NO/NC<br>g||10/4(1 changeover)||15/3(2 changeover)||
|Shock resistance|g|13||||
|Power lost to the environment|without contact current<br>W|0.6||||
||with rated current<br>W|1.2(40.11/31/41/51)||2(40.61/52/40.11-2016)||
|Recommended distance between relays|mounted on PCB<br>mm|≥5||||



5 

## 40 Series - Miniature PCB/Plug-in relays 8 - 10 - 16 A 

## Contact specification 

F 40 - Electrical life (AC) v contact current Types 40.31/51/61 

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**----- Start of picture text -----**<br>
Resistive load - cosϕ = 1<br>Inductive load - cosϕ = 0.4<br>limit for 40.31/51<br>F 40 - Electrical life (AC) v contact current<br>Types 40.11/41<br>Resistive load - cosϕ = 1<br>Inductive load - cosϕ = 0.4<br>limit for<br>version 10 A<br>Cycles<br>Cycles<br>**----- End of picture text -----**<br>


**==> picture [251 x 407] intentionally omitted <==**

**----- Start of picture text -----**<br>
F 40 - Electrical life (AC) v contact current<br>Type 40.52<br>Resistive load - cos ϕ  = 1<br>Inductive load - cosϕ = 0.4<br>H 40 - Maximum DC1 breaking capacity<br>40.61 current limit<br>40.11/31/41/51 current limit<br>40.52 current limit<br>40.52 - 2 contacts in series<br>single contact<br>DC voltage (V)<br>• When switching a resistive load (DC1) having voltage and current<br>values under the curve, an electrical life of ≥ 100·103 can be expected.<br>Cycles<br>DC breaking current (A)<br>**----- End of picture text -----**<br>


- In the case of DC13 loads, the connection of a diode in parallel with the load will permit a similar electrical life as for a DC1 load. Note: the release time for the load will be increased. 

6 

## 40 Series - Miniature PCB/Plug-in relays 8 - 10 - 16 A 

## Coil specifications 

## DC coil data - 0.65 W standard (types 40.31/51/52/61) 

**==> picture [251 x 233] intentionally omitted <==**

**----- Start of picture text -----**<br>
Nominal Coil Operating range Resistance Rated coil<br>voltage code consumption<br>UN Umin Umax R I at UN<br>V V V Ω mA<br>5 9.005 3.65 7.5 38 130<br>6 9.006 4.4 9 55 109<br>7 9.007 5.1 10.5 75 94<br>9 9.009 6.6 13.5 125 72<br>12 9.012 8.8 18 220 55<br>14 9.014 10.2 21 300 47<br>18 9.018 13.1 27 500 36<br>21 9.021 15.3 31.5 700 30<br>24 9.024 17.5 36 900 27<br>28 9.028 20.5 42 1,200 23<br>36 9.036 26.3 54 2,000 18<br>48 9.048 35 72 3,500 14<br>60 9.060 43.8 90 5,500 11<br>90 9.090 65.7 135 12,500 7.2<br>110 9.110 80.3 165 18,000 6.2<br>125 9.125 91.2 188 23,500 5.3<br>**----- End of picture text -----**<br>


DC coil data - 0.5 W sensitive (types 40.31/51/52/61) 

|Nominal<br>voltage<br>UN|Coil<br>code|Operating range<br>Umin*<br>Umax**|Operating range<br>Umin*<br>Umax**|Resistance <br>R|Rated coil<br>consumption<br>Iat UN|
|---|---|---|---|---|---|
|V||V|V|Ω|mA|
|5|7.005|3.7|8.8|50|100|
|6|7.006|4.4|10.5|75|80|
|7|7.007|5.1|12.2|100|70|
|9|7.009|6.6|15.8|160|56|
|12|7.012|8.8|21|300|40|
|14|7.014|10.2|24.5|400|35|
|18|7.018|13.2|31.5|650|27.7|
|21|7.021|15.4|36.9|900|23.4|
|24|7.024|17.5|42|1,200|20|
|28|7.028|20.5|49|1,600|17.5|
|36|7.036|26.3|63|2,600|13.8|
|48|7.048|35|84|4,800|10|
|60|7.060|43.8|105|7,200|8.4|
|90|7.090|65.7|157|16,200|5.6|
|110|7.110|80.3|192|23,500|4.7|
|125|7.125|91.2|219|32,000|3.9|



*Umin = 0.8 UN for 40.61              **Umax = 1.5 UN for 40.61 

## DC coil data - 0.5 W sensitive (types 40.11/41) 

|Nominal<br>voltage<br>UN|Coil<br>code|Operating range<br>Umin<br>Umax*|Operating range<br>Umin<br>Umax*|Resistance <br>R|Rated coil<br>consumption<br>Iat UN|
|---|---|---|---|---|---|
|V||V|V|Ω|mA|
|6|7.006|4.4|10.5|75|80|
|12|7.012|8.8|21|300|40|
|24|7.024|17.5|42|1,200|20|
|48|7.048|35|84|4,600|10.4|
|60|7.060|43.8|105|7,200|8.3|



*Umax = 1.5 UN for 40.11-2016 

## AC coil data (types 40.31/51/52/61) 

|Nominal<br>voltage<br>UN|Coil<br>code|Operating range<br>Umin<br>Umax|Operating range<br>Umin<br>Umax|Resistance <br>R|Rated coil<br>consumption<br>Iat UN(50Hz)|
|---|---|---|---|---|---|
|V||V|V|Ω|mA|
|6|8.006|4.8|6.6|21|168|
|12|8.012|9.6|13.2|80|90|
|24|8.024|19.2|26.4|320|45|
|48|8.048|38.4|52.8|1,350|21|
|60|8.060|48|66|2,100|16.8|
|110|8.110|88|121|6,900|9.4|
|120|8.120|96|132|9,000|8.4|
|230|8.230|184|253|28,000|5|
|240|8.240|192|264|31,500|4.1|



## AC/DC coil data - bistable (types 40.31/51/52/61) 

|Nominal<br>voltage<br>UN|Coil<br>code|Operating range<br>Umin<br>Umax|Operating range<br>Umin<br>Umax|Resistance <br>R|Rated coil <br>consumption <br>Iat UN|DC: Release<br> resistance**<br>RDC|
|---|---|---|---|---|---|---|
|V||V|V|Ω|mA|Ω|
|5|6.005|4|5.5|23|215|37|
|6|6.006|4.8|6.6|33|165|62|
|12|6.012|9.6|13.2|130|83|220|
|24|6.024|19.2|26.4|520|40|910|
|48|6.048|38.4|52.8|2,100|21|3,600|
|110|6.110|88|121|11,000|10|16,500|



** RDC = Resistance in DC, RAC = 1.3 x RDC 1W 

7 

40 Series - Miniature PCB/Plug-in relays 8 - 10 - 16 A 

## Coil specifications 

R 40 - DC coil operating range v ambient temperature Standard coil 

R 40 - DC coil operating range v ambient temperature Sensitive coil, types 40.31/51/52/61 

**==> picture [511 x 140] intentionally omitted <==**

R 40 - DC coil operating range v ambient temperature Sensitive coil, types 40.11/41 

R 40 - AC coil operating range v ambient temperature 

**==> picture [511 x 140] intentionally omitted <==**

1 - Max. permitted coil voltage. 

2 - Min. pick-up voltage with coil at ambient temperature. 

**==> picture [110 x 10] intentionally omitted <==**

**----- Start of picture text -----**<br>
1 - Max. permitted coil voltage.<br>**----- End of picture text -----**<br>


2 - Min. pick-up voltage with coil at ambient temperature. 

Wiring diagram for 40 series bistable coil version 

## AC Operation 

## DC Operation 

**==> picture [511 x 92] intentionally omitted <==**

On momentary closure of the SET switch the relay is magnetised through the diode and the relay contacts transfer to the set position and remain in this position. 

On momentary closure of the RESET switch the relay is demagnetised through limiting resistor (RAC) and the contacts return to the reset position. 

On momentary closure of the SET switch the relay is magnetised and the relay contacts transfer to the set position and remain in this position. On momentary closure of the RESET switch the relay is demagnetised through limiting resistor (RDC) and the contacts return to the reset position. 

Notes: The minimum SET or RESET impulse time is 20 ms. The maximum time can be continuous. In practice, always ensure that the SET and RESET contacts cannot be operated simultaneously. 

8