G7L-PV Power Relay
Two-pole Power Relay That Is Ideal for Inverters in Photovoltaic Power Systems
- High switching capacity with contact rating of 30 A at 280 VAC (AC7a class).
- Power consumption reduced by lowering coil voltage after relay operation (low power consumption of approx. 320 mW at 37.5% reduced coil voltage).
- Ambient operating temperature of up to 85°C.
- Contact gap of 3.0 mm for safety.
- UL and VDE class F certification for coil insulation.
|Number of poles||Model||Rated coil voltage (V)||Minimum order (Relays)|
|2 poles||G7L-2A-P-PV||12, 24 VDC||20 Relays/tray|
|Note 1.||When ordering, add the rated coil voltage to the model number.
However, the notation of the coil voltage on the product case as well as on the packing will be marked as □□ VDC.
|Rated voltage (V)||Rated current (mA)||Coil resistance (Ω)||Must-operate
|Percentage of rated voltage|
|DC 12||191.7||63||75% max.||10% min.||110%||Approx. 2.3 W|
|Note 1.||The rated current and coil resistance were measured at a coil temperature of 23°C with tolerances of ±15%.|
|Note 2.||Performance characteristics are measured at a coil temperature of 23ºC.|
|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 23ºC.|
|Contact structure||Double break|
|Contact material||Ag alloy|
|Rated load||30 A at 280 VAC|
|Rated carry current||30 A|
|Maximum contact voltage||280 VAC|
|Maximum contact current||30 A|
|Contact resistance (See note 2.)||100 mΩ max.|
|Operate time (See note 3.)||30 ms max.|
|Release time (See note 3.)||30 ms max.|
|Rated load||360 operations/h|
|Insulation resistance (See note 4.)||1,000 MΩ min.|
|Dielectric strength||Between coil and contacts||4,000 VAC, 50/60 Hz for 1 min|
|Between contacts of
the same polarity
|2,000 VAC, 50/60 Hz for 1 min|
|Between contacts of
|2,000 VAC, 50/60 Hz for 1 min|
|Impulse withstand voltage (See note 5.)||10,000 V between coil and contacts|
|Vibration 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 resistance||Destruction||1,000 m/s2|
|Endurance||Mechanical||1,000,000 operations min. (at 1,800 operations/h)|
|Electrical (See note 6.)||30,000 operations min. (at 360 operations/h under rated load, ON for 1 s and OFF for 9 s)|
|Ambient operating temperature||−25 to 85ºC (with no icing or condensation)|
|Ambient operating humidity||5% to 85%|
|Failure rate (P level)(reference value) (See note 7.)||100 mA at 5 VDC|
|Weight||Approx. 100 g|
|Note 1.||The values given above are initial values.|
|Note 2.||Measurement conditions: 1 A at 5 VDC using the voltage drop method.|
|Note 3.||Measurement conditions: At rated operating voltage, not including contact bounce.
Ambient temperature: 23ºC
|Note 4.||Measurement conditions: The insulation resistance was measured with a 500-VDC megohmmeter at the same places as those used for measuring the dielectric strength.|
|Note 5.||JEC-212 (1981) Standard Impulse Wave Type (1.2 × 50 μs).|
|Note 6.||Ambient temperature: 23ºC|
|Note 7.||This value was measured at a switching frequency of 60 operations per minute.|
• Install the Relays in locations that are as dry as possible and have as little dust, dirt, and harmful gas as possible.
• Using the a 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 weight 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.
• Install the Relay so that the surface with the markings faces up. (The coil terminals will be at the top and the contact terminals will be at the bottom.)
• The G7L-PV is a Power Relay that is suitable for grid connection switching applications for inverters in photovoltaic power systems. Do not use the G7L-PV to switch 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-PV is not sealed. Do not wash the G7L-PV 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.
• A voltage of at least 37.5% 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.
• If you use the Relay at the holding voltage, install a diode in parallel with the coil. The G7L-PV has no coil polarity. Connect the diode so that the polarity is the opposite of the applied coil voltage.
●PCB Mounting Interval (at Rated Coil Voltage)
• If you mount more than one G7L-PV, maintain the mounting intervals that are given in the following figures.
• If the Relays are used with the coil voltage at the holding voltage (37.5%) at an ambient temperature of 85°C, side-byside mounting (0 mm) is possible.