Three Phase Latching Relays - Top Quality at Best Prices



Three phase latching relays usually have very strong contact capacity. Like the single phase magnetic latching relays, they are pulse driven and have very little energy consumption to operate. Hence, they do not have much coil heat or temperature rise.

While popularly used on energy meters especially smart meters, these three phase power relays are also widely used on other industrial power equipment.

The three phase latching relays from Industrial Spacetek have high rated power. The contact ratings include 80A, 100A and 120A at 250Vac.

They can be chosen with either one or two coils. Choices of Coil voltage include: 5Vdc, 6Vdc, 9Vdc, 12Vdc, 24Vdc and 48Vdc.




80A Three Phase Latching Relay: HTLW-R302-80A 250Vac

  • Maximum Switching Current: 80A
  • Contact Resistance: 1mΩ Max.
  • Insulation Resistance: 1,000MΩ Min. (500Vdc)
  • Dielectric Strength: among contacts - 2,000Vac (50/60Hz 1min); between contact and coil - 4,000Vac (50/60Hz 1min); between phases - 4,500Vac (50/60Hz 1min)
  • Operation Endurance: Mechanical - 100,000 OPS; Electrical - 10,000 OPS
  • Ambient Temperature: -40-+70C
  • Dimensions: 101 x 54 x 21
  • Applications: smart metering (power meter), electrical remote control, energy leakage protection etc...

80A Three Phase Latching Relay - Best Quality at Best Price

HTLW-R302-80A 250Vac: Want to find out the price of this power relay now? Please contact us.  For more details of this 3-phase latching relay, refer to its datasheet: Three-Phase-Latching-Relay-HTLW-R302-80A




100A Three Phase Latching Relays:

1). HTLW-R301-100A 250Vac

  • Maximum Switching Current: 100A
  • Contact Resistance: 0.5mΩ Max.
  • Insulation Resistance: 1,000MΩ Min. (500Vdc)
  • Dielectric Strength: among contacts - 2,000Vac (50/60Hz 1min); between contact and coil - 4,000Vac (50/60Hz 1min); between phases - 4,500Vac (50/60Hz 1min)
  • Operation Endurance: Mechanical - 100,000 OPS; Electrical - 10,000 OPS
  • Ambient Temperature: -40-+70C
  • Dimensions: 132 x 52 x 30
  • Applications: smart metering (power meter), electrical remote control, energy leakage protection etc...

Contact us to find out the price or more technical details about this power relay.


2). HTLW-R303-100A 250Vac

  • Maximum Switching Current: 100A
  • Contact Resistance: 0.5mΩ Max.
  • Insulation Resistance: 1,000MΩ Min. (500Vdc)
  • Dielectric Strength: among contacts - 2,000Vac (50/60Hz 1min); between contact and coil - 4,000Vac (50/60Hz 1min); between phases - 4,500Vac (50/60Hz 1min)
  • Operation Endurance: Mechanical - 100,000 OPS; Electrical - 10,000 OPS
  • Ambient Temperature: -40-+70C
  • Dimensions: 113 x 52 x 28
  • Applications: smart metering (power meter), electrical remote control, energy leakage protection etc...

100A Three Phase Latching Relay - Best Quality at Top Cheap Price

HTLW-R303-100A 250Vac: Want to find out the price of this three phase latching relay now? Please contact us

For more details of this particular power relay, refer to its datasheet: Three-Phase-Latching-Relay-HTLW-R303-100A


120A Three Phase Latching Relays:

1). HTLW-R301-120A 250Vac

  • Maximum Switching Current: 120A
  • Contact Resistance: 0.4mΩ Max.
  • Insulation Resistance: 1,000MΩ Min. (500Vdc)
  • Dielectric Strength: among contacts - 2,000Vac (50/60Hz 1min); between contact and coil - 4,000Vac (50/60Hz 1min); between phases - 4,500Vac (50/60Hz 1min)
  • Operation Endurance: Mechanical - 100,000 OPS; Electrical - 10,000 OPS
  • Ambient Temperature: -40-+70C
  • Dimensions: 132 x 52 x 30
  • Applications: smart metering (power meter), electrical remote control, energy leakage protection etc...

120A Three Phase Latching Relay - Best Quality at Top Cheap Price

HTLW-R301-120A 250Vac: Want to find out the price of this three phase magnetic latching relay now? Please contact us

For more details of this bistable latching relay, refer to its datasheet: Three-Phase-Latching-Relay-HTLW-R301-120A

2). HTLW-R303-120A 250Vac

  • Maximum Switching Current: 120A
  • Contact Resistance: 0.4mΩ Max.
  • Insulation Resistance: 1,000MΩ Min. (500Vdc)
  • Dielectric Strength: among contacts - 2,000Vac (50/60Hz 1min); between contact and coil - 4,000Vac (50/60Hz 1min); between phases - 4,500Vac (50/60Hz 1min)
  • Operation Endurance: Mechanical - 100,000 OPS; Electrical - 10,000 OPS
  • Ambient Temperature: -40-+70C
  • Dimensions: 113 x 52 x 28
  • Applications: smart metering (power meter), electrical remote control, energy leakage protection etc...

Contact us to find out the price or more technical details about this 3-phase magnetic latching relay.

ISTEK-HTLW-R303-120A 12Vdc Three Phase Latching Relay and VAC CT Assembly for Smart Energy Meter

Customized 3-Phase Latching Relay and CT Assemblies for Smart Meters


Copper terminal connectors  and other accessories (e.g. CTs and shunts) can be supplied and assembled when required on all of our three phase latching relays. 

If you want to find out more technical information about any particular power relay product - please tell us using the below form:

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