G7L-2A-X-DC24

## G7L-X PCB Power Relays 

## **Compact Power Relay Capable of Switching 1,000 VDC Loads** 

- Compact design that achieves high-capacity DC breaking and switching. 

- (52.5 × 35.5 × 41.0 mm (L×W×H)) 

- Two poles wired in series to break or switch 600 to 1,000 VDC. 

- Complies with solar inverter safety standards (UL and EN). 

- Designed for safety with 6.0-mm contact gap (two-pole series wiring). 

- UL and VDE conformed. 

## **RoHS Compliant** ~~Co~~ 

## **Model Number Legend** 

## **G7L-2 A**  **-X-**  

- 1 2 3 4 

## **Application Examples** 

      - Photovoltaic Power Systems 

      - PV Inverters 

      - Rapid Shutdown box 

1. Number of poles 3. Enclosure rating 

   - 2: 2-poles Blank: Flux protection 

2. Contact Form 4. Additional Models A: DPST-NO (2a) None: Standard model 

- L: General purpose model 

## **Ordering Information** 

|Classification|Contact Form|Enclosure rating|Terminal Shape|Model|Rated coil voltage|Minimumpackingunit|
|---|---|---|---|---|---|---|
|Standard model|DPST-NO*|Flux protection|PCB terminals|G7L-2A-X|12 VDC, 24 VDC|20 pcs/tray|
|Generalpurpose model||||G7L-2A-X-L|||



Note. When ordering, add the rated coil voltage to the model number. 

Example: G7L-2A-X DC24 

Rated coil voltage 

However, the notation of the coil voltage on the product case as well as on the packing will be marked as[][] VDC. 

- It is assumed that the Relay will be used with 2-pole series wiring. 

## **Ratings** 

##  **Coil** 

|Item<br>Rated Voltage<br>(V)|Item<br>Rated Voltage<br>(V)|Rated current<br>(mA)|Coil resistance<br>(Ω)|Must operate voltage|Must release voltage|Max. voltage|Power<br>consumption<br>(W)|
|---|---|---|---|---|---|---|---|
|||||% of rated voltage||||
|DC|12|191.7|63|75% max.|10% min.|110%|Approx. 2.3|
||24|95.8|250|||||



Note 1. The rated current and coil resistance were measured at a coil temperature of 23°C with tolerances of ± 15%. 

Note 2. The operating characteristics are measured at a coil temperature of 23°C. 

Note 3. The maximum permissible voltage is the maximum value of the fluctuation range for the Relay coil operating power supply and was measured at an ambient temperature of 23°C. 

##  **Contacts (Two-pole Series Wiring)** 

|Model<br>Item<br>Load|G7L-2A-X|G7L-2A-X-L|
|---|---|---|
||Resistive load||
|Contact type|Double break||
|Contact material|Ag alloy||
|Rated load|25 A at 600 VDC / 25 A at 1,000 VDC|20 A at 600 VDC / 20 A at 1,000 VDC|
|Rated carry current|25 A|20 A|
|Max. switching voltage|1,000 VDC||
|Max. switching current|25 A|20 A|



**1** 

G7L-X 

**PCB Power Relays** 

## **Characteristics** 

|Item|Item|G7L-2A-X|G7L-2A-X-L|
|---|---|---|---|
|Contact resistance *1||100 mΩmax.||
|Operate time *2||30 ms max.||
|Release time *2||30 ms max.||
|Insulation resistance *3||1,000 MΩmin.||
|Dielectric<br>strength|Between coil and<br>contacts|4,000 VAC, 50/60 Hz for 1 min||
||Between contacts<br>of the same<br>polarity|2,000 VAC, 50/60 Hz for 1 min||
||Between contacts<br>of different polarity|2,000 VAC, 50/60 Hz for 1 min||
|Impulse<br>withstand<br>voltage *4|Between coil and<br>contacts|10 kV||
|Vibration<br>resistance|Destruction|10 to 55 to 10 Hz, 0.75 mm single amplitude (1.5 mm double amplitude)||
||Malfunction|10 to 55 to 10 Hz, 0.75 mm single amplitude (1.5 mm double amplitude)||
|Shock<br>resistance|Destruction|1,000 m/s2||
||Malfunction|100 m/s2||
|Durability|Mechanical   *5|1,000,000 operations min. (at 1,800 operations/h)||
||Electrical<br>(Resistive load) *6|100 operations (25 A, 1,000 VDC, 85°C)<br>6,000 operations (25 A, 600 VDC, 85°C)<br>(at 360 operations/h under resistive load,<br>ON for 1 s and OFF for 9 s)|100 operations (20 A, 1,000 VDC, 85°C)<br>6,000 operations (20 A, 600 VDC, 85°C)<br>(at 360 operations/h under rated load,<br>ON for 1 s and OFF for 9 s)|
|Ambient operating temperature||−40° to 85°C (with no icing or condensation)||
|Ambient operating humidity||5% to 85%||
|Weight||Approx. 100 g||



Note. The values given above are initial values. 

- *1. Measurement conditions: 5 VDC, 1 A, voltage drop method. 

*2. Measurement conditions: Rated operating voltage applied, not including contact bounce. Ambient temperature: 23°C 

*3. Measurement conditions: The insulation resistance was measured with a 1,000-VDC megohmmeter at the same locations as the dielectric strength was measured. 

*4. JEC-212 (1981) Standard Impulse Wave Type (1.2×50µs). 

*5. A standard diode and zener diode are connected to the relay coil. 

*6. For two-pole series wiring. Also, a standard diode and zener diode are connected to the relay coil. 

## **Dimensions** 

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G7L-2A-X<br>G7L-2A-X-L<br>52.5 max. 35.5 max.<br>2.8 0.8<br>6<br>oan) T u<br>41 max. 47 max.<br>**----- End of picture text -----**<br>


(Unit: mm) 

Terminal Arrangement/Internal PCB Mounting Holes Connections (BOTTOM VIEW) (BOTTOM VIEW) Tolerance: ±0.1 mm 0 1 36.8 3.2 2 4 6 8 (8.4) ~~aes~~ (−) (+) 1.2 ~~ar_~~ 14.4 17.7 Contacts are Polarized. Perform wiring with care. The coil has no polarity. (8.9) Six, 1.2×3.2 square holes 

Two-pole Series Wiring Diagram 

(BOTTOM VIEW) 

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0 1<br>2 4 6 8<br>**----- End of picture text -----**<br>


(−) (+) 

Wire the two poles in a series connection to use the Relay. 

**2** 

G7L-X 

**PCB Power Relays** 

## **Engineering Data (Two-pole Series Wiring)** 

 **Maximum Switching Capacity G7L-2A-X** 

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  Maximum Switching Capacity  Durability Note: Ambient temperature: 85°C<br>G7L-2A-X G7L-2A-X-L G7L-2A-X G7L-2A-X-L<br>100 100 100,000 100,000<br>600VDC<br>resistive load  600VDC<br>resistive load<br>DC  resistive Load<br>25 DC  resistive Load<br>20 10,000 10,000<br>10 10 1,000VDC 1,000VDC<br>resistive load resistive load<br>1,000 1,000<br>1 1 10 100 1,000 1 1 10 100 1,000 100 10 15 20 25 30 100 10 15 20 25 30<br>Switching voltage (V) Switching voltage (V)   Switching current (A)   Switching current (A)<br>Switching current (A) Switching current (A)    Durability ( operations)    Durability ( operations)<br>**----- End of picture text -----**<br>


## **Approved Standards** 

- The approval rating values for overseas standards are different from the performance values determined individually confirm the values before use. 

**UL Recognized** (File No. E41515) 

|Model|Coil ratings|Contact ratings|Number of test<br>operations|
|---|---|---|---|
|G7L-2A-X|12 VDC, 24 VDC|15 A at 1000 VDC (Resistive) 85°C, Connected in series or Break all lines|6,000|
|||20 A at 1000 VDC (Resistive) 85°C, Connected in series||
|||25 A at 600 VDC (Resistive) 85°C, Connected in series or Break all lines||
|G7L-2A-X-L|12 VDC, 24 VDC|15 A at 1000 VDC (Resistive) 85°C, Connected in series or Break all lines|6,000|
|||20 A at 1000 VDC (Resistive) 85°C, Connected in series||
|||20 A at 600 VDC (Resistive) 85°C, Connected in series or Break all lines||



 **EN/IEC and VDE Approval** (Approval No.40045061) 

|Model|Coil ratings|Contact ratings|Number of test<br>operations|
|---|---|---|---|
|G7L-2A-X|12 VDC, 24 VDC|25 A at 1000 VDC (Resistive) 85°C, Connected in series or Break all lines|50|
|||15 A at 1000 VDC (Resistive) 85°C, Connected in series or Break all lines|8,000|
|||25 A at 600 VDC (Resistive) 85°C, Connected in series or Break all lines|10,000|
|G7L-2A-X-L|12 VDC, 24 VDC|20 A at 1000 VDC (Resistive) 85°C, Connected in series or Break all lines|50|
|||15 A at 1000 VDC (Resistive) 85°C, Connected in series or Break all lines|6,000|
|||20 A at 600 VDC (Resistive) 85°C, Connected in series or Break all lines|10,000|



##  **Circuit Diagrams** 

## **Connected in series** 

## **Break all lines** 

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1 1<br>+8 Load +8<br>6 6<br>Load<br>4 4<br>−2 −2<br>0 0<br>**----- End of picture text -----**<br>


Note. There is polarity. Perform wiring with care. The diode absorbs coil surge. (The coil has no polarity.) 

**3** 

G7L-X 

**PCB Power Relays** 

## **Safety Precautions** 

- **Please refer to "PCB Relays Common Precautions" for correct use.** 

## Correct Use 

## � **Installation** 

- The relay contacts are polarized. Incorrect wiring may cause a failure to break the circuit. Wire the Relay with care. 

- The Relay is designed and manufactured under the assumption that it will be used with 2-pole series wiring. Do not use just one pole only. 

- Install the Relays in locations that are as dry as possible and have as little dust, dirt, and harmful gas. 

- Using the Relay under high temperature, high humidity, or harmful gas may deteriorate its performance characteristics due to condensation or corrosive materials, resulting in failure or burn damage to the Relay. 

- The Relay weighs approx. 100 g. Be sure that the PCB is strong enough to support it. 

- We recommend dual-side through-hole PCBs to reduce solder cracking from heat stress. 

## � **Micro Loads** 

- These Power Relays are suitable for switching and breaking high-capacity DC. Do not use them for switching minute loads, such as signals. 

## � **Soldering PCB Terminals** 

- Do not perform automatic soldering. Always solder the terminals manually. 

- Solder with the following conditions: Soldering iron temperature (max.) 380°C, Soldering time within 10 seconds. 

- The G7L-X is not sealed. Do not wash the G7L-X with water or detergent. 

## � **Coil Voltage Reduction (Holding Voltage) after Relay Operation** 

- If the coil voltage is reduced to the holding voltage after Relay operation, first apply the rated voltage to the coil for at least 100 ms, as shown below. 

## � **Connection of Diodes to the Operation Coil** 

- Connect the standard diode and zener diode (or varistors) to the relay coil. (Refer to the following figure.) 

- The coil has no polarity. Connect the diodes in the reverse polarity of the voltage applied to the coil. 

The recommended zener voltage of the zener diode is one to two times the rated coil voltage. 

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Standard diode<br>Relay coil<br>Zener diode<br>**----- End of picture text -----**<br>


## � **PCB Mounting Interval** 

   - When mounting Relays side by side on a PCB, use them at a holding voltage of 50%. 

   - **Relay Service Life** 

   - These Relays must be used for high DC voltages. The final failure mode is failure to break the circuit. In a worst-case scenario, burning may extend to surrounding components. Do not use these Relays outside of the specified ratings and service life, or for any application other than high DC voltages. Implement safety circuits and other safety measures to minimize the risk in case of the unlikely event of a failure. 

   - The electrical durability of these Relays is specified as the number of load switching operations under a resistive load and OMRON-specified standard testing conditions. 

   - The coil drive circuit, ambient environment, switching frequency, or load conditions (e.g., inductive load or capacitor load) may reduce the service life and possibly lead to failure to break. Always confirm the service life in the actual equipment. 

- A voltage of at least 50% of the rated voltage is required for the coil holding voltage. Do not allow voltage fluctuations to cause the coil holding voltage to fall below this level. 

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100%<br>(Rated voltage)<br>50%<br>(Holding voltage)<br>100ms min.<br>Power<br>Applied coil voltage Coil resistance*<br>consumption<br>Rated voltage 100% 63Ω(DC12) Approx. 2.3W<br>Holding voltage 50% 250Ω(DC24) Approx. 0.6W<br>* The coil resistance were measured at a coil temperature of 23°C with<br>tolerances of ± 15%.<br>**----- End of picture text -----**<br>


- 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. J216-E1-02** 1116(1016)(O) 

**4**