SEO Title: 60A GRT508AD Latching Relay With 10000 OPS Electrical LifeMeta Description: GRT508AD 1-pole latching relay rated 60A at 250VAC with 10,000 electrical operations, 5-48VDC coil, AgSnO2 contacts and a 32 x 30 x 15 mm fast-connection body.URL Slug: grt508ad-60a-latching-relay
60A GRT508AD 1-Pole Latching Relay With 10000 OPS Electrical Life
The GRT508AD 60A rating is the long-life option in this 1-pole latching relay family, specified at 10,000 electrical operations at 60A 250VAC. It is intended for DIN smart meters where switching cycles accumulate over a long field life. Contacts are AgSnO2, coil voltage spans 5-48VDC, and the latch holds contact state after a single impulse without continuous coil power. The outline measures 32 x 30 x 15 mm.
GRT508AD 60A long-life ratingMoulded plastic body, fast connection terminals
60ARated resistive load
10,000 OPSElectrical endurance at 60A
100,000 OPSMechanical endurance
5-48 VDCCoil voltage range
Product Summary
This version keeps the same 1-pole latching architecture and 250VAC maximum switching voltage, but is rated at 60A with 10,000 electrical operations at 250VAC rather than the 3,000 operations of the 80A rating. For meters that switch resistive load repeatedly, that endurance figure is the deciding parameter. Max short-circuit current is 1500A/10ms, mechanical endurance is 100,000 OPS, and the relay is RoHS compliant for meter assembly.
Key Features
1-pole latching relay rated 60A resistive load at 250VAC
10,000 electrical operations at 60A 250VAC, 100,000 mechanical operations
Impulse excitation only, for single coil and double coil versions
Coil voltage 5-48VDC, low coil power consumption with latching state retention
AgSnO2 contacts, copper and plastic construction, RoHS compliant
Max short-circuit current 1500A/10ms, ambient -40℃ to +85℃
Fast connection installation, 32 x 30 x 15 mm outline
Key Selling Points
10,000 electrical operations at 60A 250VAC. The endurance figure is given at the rated load, so expected meter switching life can be calculated before specification.
Latching state without holding current. An impulse sets or resets the contact; the coil is idle afterwards, which supports the low coil power consumption reported in metering programmes.
1-pole contact in a 32 x 30 x 15 mm body. The compact footprint leaves board space for metering circuitry on a DIN meter layout.
1500A/10ms short-circuit rating. The withstand figure is documented, allowing protection coordination to be checked against a stated limit.
Single and double coil availability. Both coil configurations work on impulse excitation, so the drive circuit can follow the meter platform already in use.
Technical Specifications
Model
GRT508AD (60A rating)
Contact form
1-pole latching
Rated load (resistive)
60A
Max switching current
80A
Max switching voltage
250VAC
Contact material
AgSnO2
Coil voltage
5-48 VDC
Coil drive
Impulse excitation, single coil and double coil
Mechanical endurance
100,000 OPS
Electrical endurance
10,000 OPS (60A 250VAC) / 3,000 OPS (80A 250VAC)
Max short-circuit current
1500A/10ms
Ambient temperature
-40℃ ~ +85℃
Installation form
Fast connection
Outline dimensions
32 x 30 x 15 mm
Compliance
RoHS compliant
Models and Options
Two contact ratings share this platform: 60A with 10,000 electrical operations at 250VAC, and 80A with 3,000 operations at 250VAC. Coil voltage can be selected from 5-48VDC, and single coil or double coil latching versions are both supplied. Accessories can be welded to customer requirements, so the terminal arrangement can be adapted to an existing meter assembly.
Materials and Structure
AgSnO2 contacts handle repetitive arc interruption at the rated load. Conductive parts are copper and the housing is moulded plastic at 32 x 30 x 15 mm. Installation is by fast connection, with PCB soldering or screw mounting used when the relay is assembled into a smart meter. The single-pole latching mechanism keeps its position mechanically after each pulse.
Applications
Target use is on-off control of circuits in smart electricity meters and energy measurement modules. The published working conditions for this metering duty are ambient temperature -40℃ to +85℃, relative humidity 5% to 85%RH non-condensing, altitude up to 2000 m, and no corrosive gas or explosive dust, with resistive load and pulse-driven switching.
Customization
Coil voltage within 5-48VDC, single or double coil choice, and welded accessories per customer drawing are the configurable items. The supplier operates as a Customized ODM partner for smart meter projects and reviews coil, load and footprint requirements per programme.
Case Study
This relay family has been used in a Customized ODM smart meter programme across Korea, Denmark, Germany, Spain, Finland, the UK, Greece, India, South Africa and Brazil, totalling 5,000,000 units over 10 years. Reported results are stable operation, ultra-low coil power consumption, consistent contact performance and long service life.
FAQ
Why choose the 60A rating instead of 80A?
The 60A rating is specified for 10,000 electrical operations at 250VAC, while the 80A rating is specified for 3,000 operations.
Is continuous coil power required?
No. Only impulse excitation is needed and the latch holds state after switching.
Which coil voltages can be supplied?
Coil voltage is selectable within the 5-48VDC range.
What short-circuit current can the relay withstand?
The maximum short-circuit current is 1500A/10ms.
What are the mechanical and electrical endurance figures?
Mechanical endurance is 100,000 OPS; electrical endurance is 10,000 OPS at 60A 250VAC.
What working conditions suit metering installation?
-40℃ to +85℃, 5% to 85%RH non-condensing, altitude up to 2000 m, resistive load, no corrosive gas or explosive dust.
Can accessories be welded to our drawing?
Yes, accessories can be welded according to customer requirements.
Inquiry Information
Zhejiang Great Electrical Co., Ltd. was established in 2003 and runs a 50,000m² plant with 500 employees and 60 engineers; 55% of output is exported, mainly to the EU and India.
Contact: Annie · Mobile +86 13626734569 · WhatsApp +86 18057329886 · Email sales5@great-relay.com Address: No.9 Linhu Avenue, Yaozhuang Town, Jiashan County, Jiaxing City, Zhejiang Province, China
Send rated load, coil voltage, coil configuration and annual volume for a quotation.
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