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LW709PA Magnetic Latching Relay
    Publish time 2021-11-16 16:20    

LW709PA Magnetic Latching Relay

LW709PA Magnetic Latching Relay

◆ Characteristic

> 200A switching capability. 

> Low coil consumption, ultra-low temperature rise.

> Low contact resistance.

> Strong anti-shock and anti-vibration capability. 

> Outline size: 77×73.3 ×29.5mm.


◆ Ordering Information

NRL709PA

Latching Relay

Part Number

Coil Voltage

D= Double Coil; S= Single Coil

200=200A


◆ Characteristics


 Insulation resistance1000MΩ (500VDC)
Dielectric StrengthBetween Coil & Contacts4000VAC 1min
Between Open Contacts2000VAC 1min
Pole&Pole4000VAC 1min
Operate Time30msec. Max.
Release Time30msec. Max.
Shock resistanceFunctional98m/S²
Destructive980m/S²
Vibration resistance10~55Hz 1.5mm
Humidity5%-85%RH
Ambient temperature-40~+85℃
TeminationFast connection
Unit weight320g
ConstrutionDust protected


◆ Contact Data


Contact form2A/2B
Contact materialAgSnO2
Contact resistance (1A 6VDC)(Test point within 5mm distance from the casing )Max: 0.35mΩ
Contact Rating200A 250VAC
Max. Switching Current200A
Max. Switching Voltage277VAC
Max. Switching Power50000VA
Mechanical life1×105
Electrical  life ( Resistive)6×103


◆ Coil

Coil powerSingle coil:12.0W
Double coil: 24.0W


◆ Coil Data

Rated VoltagePick-up voltagePulse DurationCoil Resistance
Single coil
12≤ 9≥ 10012±10%
24≤ 18≥ 10048±10%
48≤ 36≥ 100192±10%
Double coil
12≤ 9≥ 1002×6±10%
24≤ 18≥ 1002×24±10%
48≤ 36≥ 1002×96±10%

Note: Special ordering for other coil voltage.


◆ Typical Application

1)Prepayment Energy Meter; AMR System;
2)Compound Switch; Automatic Control System.


◆ Dimensions(mm)/  Circuit Diagram