UC3 Compliant 120A Three Phase Latching Relay for Smart Meters

• Theory: Electromagnetic Relay
• Usage: Smart Energy Meter
• Phase: 3
• Electricity Type: Ac
• Number of Pole: 3
• Load: High Power Relay
• Model NO.: GRT508M-120A
• Protective Characteristics: Enclosed Rlay
• Action Principle: Electromagnetic Type
• Size: Miniature
• Type: Electric Parameter Relay
• Contact Form: 3b
• Coil Voltage: 6~24VDC
• Switching Current: 120A
• Coil Type: Single Coil and Double Coil Optional
• Transport Package: Carton Packing
• Specification: 120A-3B
• Trademark: GRT
• Origin: China
• HS Code: 85364110
• Production Capacity: 40000000PCS Per Year

Product Description

Product Description

3-pole Latching Relay


120A three sets of contacts switching simultaneously, auxiliary contact can be added.
Only impulse excitation needed, both for single and double coil.
Low power consumption.
Custom assemblies available with flexible wire and/or copper straps, and/or  with integrated shunt
4KV dielectric strength between coil and contacts
RoHS compliant
IEC62055-31 UC3 compliant
Outline dimensions:(110x 52 x24) mm

 

Product Parameters

Contact Data

Contact Form	3B/3H ( double contacts)
Contact Material	AgSnO2
Contact Resistance	Max. 1.0MΩ (1A  6VDC)
Rated Load ( Resistive)	100A  250VAC
Max. Switching Voltage	380VAC
Max. Switching Current	120A
Max. Switching Power	25000VA
Mechanical Service Life	1x10^5 OPS
Electrical Service Life	6X10^3 OPS (120A, 250VAC)
	1x10^4OPS (100A, 250VAC)
Max. Short-circuit Current	3000A/10ms
	6000A/10ms (no explosion)

Characteristics

Operate Time	Max. 60ms
Release Time	Max. 60ms
Insulation Resistance (500VDC)	Min. 1000MΩ
Dielectric Strength between Contact & Coil	4000VAC
Dielectric Strength of Contact Opening	2000VAC
Dielectric Strength between Contacts	4000VAC
Surge Voltage from Contact to Coil	4KVAC
Creepage Distance	8mm
Unit Weight	about 300g

 
Environment Data

Ambient Temperature	-40ºC~ 85ºC
Relative Humidity	5%~85%RH
Vibration	10~55Hz  1.5mm
Shock	98M/S^2(functional)
	980M/S^2(survival)

 
Coil Data

voltage	resistance(Ω)±10%		power(W)		operating	releasing	allowing	pulse duration
	single	double	single	double	VDC	VDC	VDC	ms
6	7.2	3.6/3.6	5.0	10.0	≤4.2	≤4.2	9	≥120
9	16.2	8.1/8.1			≤6.3	≤6.3	13.5
12	28.8	14.4/14.4			≤8.4	≤8.4	18
24	115.2	57.6/57.6			≤16.8	≤16.8	36

Drawing

 

Typical Terminal Type

 

Our Advantages

 

1. National high-tech enterprise.

2. Established provincial R&D center for latching relay.

3. Main products have passed CQC, VDT, TUV, UL and RoHS etc.

4. Focusing on the R&D of latchiing relay and current transformer for nearly 20 years.

5. One of the drafters of industrial staradard of "latching relay used in electrical energy meters"

Trade Show & Honor

Certificate

FAQ

Q: What are the application fields of your products?

A: Our products are mainly used in smart meter, smart home, load control, synchronous switch, leakage protection and other applications.

Q: Are you a manufacturer or a trade company?

A: We are the manufacturer, but we have our own international trade department. We have ability to sell our products to the buyers all over the world.

Q:Can you provide custom products?

A: Absolutely OK. Due to most of our products need to be customized. You can send us your drawing or requirements, our technical staff will assist you to develop the products.

Q: Which countries do you export to?

A: At present, our products are mainly exported to Denmark, Japan, Spain, South Korea, Ukraine, Russia and other countries.

Q: Do you have requirements for MOQ?

A: There is no limiteation for MOQ except  the special condition of your products. Our saleman will inform you in advance if there is MOQ exisiting.

Q: What kind of payment you can accept?

A:We accept TT , L/C, Western Union as payment methods.

Q: What kind of price term you can accept?

A: We accept FOB, CNF, CIF, FCA, DDP, EXW etc.

Q: Can you offer samples? Do we need to pay the sample fee?

A: As long as there is no specical requirements for the samples, we can offer at most 5~10pcs ( depends on specific model) free samples for testing. But you need to burden the shipping cost.