PCB Power Relay Platform
90A PCB Latching Relay 4KV Dielectric for Smart Meters GRT508Y-90A
A 1-pole latching relay for smart metering and smart home control circuits, with 90A resistive switching, impulse excitation and PCB mounting.
90A resistive load6–24 VDC coil4KV dielectricRoHS compliant
Product Summary
The GRT508Y-90A is a 1-pole PCB latching relay for smart metering and smart home control circuits. It switches a 90A resistive load at up to 440VAC and holds contact state after an impulse, so the coil does not need continuous power. The 6–24VDC coil, 4KV coil-to-contact dielectric strength, AgSnO2 contacts and 39 × 30.2 × 15 mm outline suit compact meter boards. Mechanical endurance is 1,000,000 operations; electrical endurance is 10,000 operations. The relay is RoHS compliant.
Key Features
- 90A resistive switching and 440VAC maximum voltage: supports high-current meter circuits within the published resistive-load rating.
- Impulse excitation for single or double coil: the relay changes state on a pulse and holds position without continuous coil power.
- 4KV dielectric strength between coil and contacts: provides a defined isolation margin for control and load circuits.
- AgSnO2 contact material: a stated contact system for the 1-pole switching path.
- 1,000,000 mechanical and 10,000 electrical operations: gives buyers clear endurance figures for service-life planning.
- 39 × 30.2 × 15 mm PCB package: fits space-constrained smart meter and control-board layouts.
Technical Specifications
| Parameter | Value |
|---|
| Product type | 1-pole latching relay |
| Model | GRT508Y-90A |
| Rated load (resistive) | 90A |
| Max. switching current | 90A |
| Max. switching voltage | 440VAC |
| Coil voltage | 6–24 VDC |
| Contact material | AgSnO2 |
| Dielectric strength, coil to contacts | 4KV |
| Mechanical endurance | 1,000,000 OPS |
| Electrical endurance | 10,000 OPS |
| Max. short-circuit current | 1200A/10ms |
| Ambient temperature | -40°C to +85°C |
| Installation form | PCB |
| Outline dimensions | 39 × 30.2 × 15 mm |
| Compliance | RoHS compliant |
Models and Options
The published model is GRT508Y-90A. It is a 1-pole PCB relay with a 6–24VDC coil range and impulse excitation in single- or double-coil arrangements. Select the coil voltage and excitation arrangement to match the control circuit and pulse profile.
Materials and Structure
The relay uses AgSnO2 contacts, with copper and plastic in its construction. Its 1-pole contact system is packaged in a 39 × 30.2 × 15 mm outline for PCB installation. The design supports latching operation: an impulse sets or resets the contact position, and the state is retained without continuous coil energization.
GRT508Y-90A platform shown for PCB latching relay evaluation.
Applications
Smart metering: on-off control for energy meter circuits, with latching state retention and low power consumption after switching. The metering reference pairs the relay with smart electricity meters and energy measurement modules under -40°C to +85°C, 5–85%RH non-condensing, altitude ≤2000 m and no corrosive gas or explosive dust, with resistive load. It notes high shock and vibration resistance, long mechanical life and low coil power consumption as requirements.
Smart home: the product type includes smart home latching relay. Use the published impulse-driven, state-retaining behaviour for control circuits that cannot keep the coil energized. Confirm the load type and cycle profile for each design.
Customization
Available selections within the published platform include coil voltage from 6 to 24 VDC and single- or double-coil impulse excitation. Because latching behaviour, PCB layout and load type interact, share the pulse profile, ambient conditions and resistive load rating with the manufacturer before final selection.
FAQ
What load can the GRT508Y-90A switch?It is rated for a 90A resistive load, with 90A maximum switching current and 440VAC maximum switching voltage.
What coil voltage is available?The published coil voltage range is 6–24 VDC.
Does it need continuous coil power?No. It uses impulse excitation for single- or double-coil operation and holds state after switching.
What is the dielectric strength?4KV between coil and contacts.
What are the endurance ratings?1,000,000 mechanical operations and 10,000 electrical operations.
What is the short-circuit rating?1200A/10ms maximum short-circuit current.
How is it mounted and what is the temperature range?PCB installation, with an ambient temperature range of -40°C to +85°C.
Is it RoHS compliant?Yes, the GRT508Y-90A is stated as RoHS compliant.
Image Filename and Alt Suggestions
latching-relay-grt508y-90a-smart-meter.jpg — GRT508Y-90A 90A PCB latching relay for smart meter circuitslatching-relay-grt508y-90a-pcb-mount.jpg — GRT508Y-90A latching relay product image for PCB mountinglatching-relay-grt508y-90a-90a-contact.jpg — GRT508Y-90A 90A latching relay contact platform
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