Three phase 120A switching capability;
Multi-layer blades, low temperature rise;
Low power consumption 4.5W;
Integrated CT, relays, and terminals, easily assembled;
Environmental protection (comply with ROSH) ;
Outline dimension: 79mm×28mm×25.5mm.
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 IVY 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.
| Basic parameters |
Dimension(mm) |
79*28*25.5mm |
| Weight |
≈103g |
| Ambient |
-45~+85ºC |
| Contact parameters |
Contact Material |
AgSnO2 |
| Contact Arrangement |
3A/3B |
| Contact Resistance |
≤1.0mΩ |
| Contact Load |
250VAC,120A |
| Electrical Life |
32ΩMotor(Control voltage DC12~15V, rated resistive load) |
>=5000 cycles |
| 12ΩMotor(Control voltage DC12V, rated resistive load) |
10000 cycles |
| Mechanical Life |
Control Voltage(DC12V Contact no load or micro current load) |
>=50000 cycles |
| Performance parameters |
Rated Driving Voltage |
32ΩMotor |
12V(Advise pulse width 130-150ms) |
| 32ΩMotor |
15V(Advise pulse width 90-110ms) |
| 12ΩMotor |
10V(Advise pulse width 80-100ms) |
| 12ΩMotor |
12V(Advise pulse width 70-80ms) |
| Motor Resistance(two styles optional) |
32(1±15%)Ω |
| 12(1±15%)Ω |
| Vibration |
1.5mm(double amplitude),10~ 50Hz |
| Shock |
1000m/s²,(100G) |
| Surge Current |
6000A/10ms |
| Insulation Resistance |
>1000MΩ(500VDC) |
| Dielectric Strength |
Motor to Contact |
>4000VAC,1 min |
| Across Open Contact |
>2000VAC,1 min |
| Pole to Pole Contact |
>4000VAC, 1min |
| Closing time at rated drive voltage |
32ΩMotor(12V) |
≤110ms |
| 32ΩMotor(15V) |
≤80ms |
| 12ΩMotor(10V) |
≤70ms |
| 12ΩMotor(12V) |
≤60ms |
| Breaking time at rated driving voltage |
32ΩMotor(12V) |
≤80ms |
| 32ΩMotor(15V) |
≤50ms |
| 12ΩMotor(10V) |
≤50ms |
| 12ΩMotor(12V) |
≤40ms |
Cautions of Latching Relay:
1.Suggestions of relay's input
(1)Polarity-Please check the polarity inside of our technical specification, if single coil then"+ -" or "- +"are fine,
you can change it by one pulse.If double coil then it's necessary to confirm "-+-" or "+-+"before leaving the our factory.
(2)Driving-Please energize the relay at our recommend pulse width, rated voltage for reliable performance, if 1.5
times or 2 times of value or lower driving condition plz confirm with our engineer.
(3)Relays'contact status may be changed during transportation or installation due to impact of external force,
therefore please reset to the required status.
2.Suggestions of relay's output
(1)When choosing the relay with hard connection,please avoid the external force on load terminals during or after
the installation.
(2)When the relay will be connected with screw or bolts to the relays' terminals, plz make sure your connection is
fastened and prevent relay from damages or other safety problems due to temp. Rise..
(3)The sampling signal wires of products are limited, please do not pull or torque during installation.
What is the relay used in smart energy meter?
Magnetic latching relays are key components in today's smart power meters, where they are used to facilitate the remote disconnection and reconnection of power to the consumer premises.
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