MG RELAY
Industrial Relay Manufacturer
Built to Replace the Big Brands — at Factory Price
UL, TUV and CE certified electromagnetic, power and signal relays for industrial automation, rail and photovoltaic systems. In-house R&D lab, 200+ production machines and 50+ years of relay engineering.
50+ Years R&D
Relay engineering and manufacturing expertise since 1973
200+ Machines
Advanced production and testing for consistent quality.
24h Quote Response
Fast quotations and cross-reference support within 24 hours
Need an Alternative to an Existing Relay?
Many customers contact MG Relay when they need a technically compatible alternative to an existing relay. Send us the original part number or datasheet, and our engineers will recommend an MG Relay model based on contact rating, coil voltage, dimensions, pin configuration and mounting method.
| IF YOU USE... | MG EQUIVALENT | KEY SPECS | COMPATIBILITY |
|---|---|---|---|
| Omron MY2 / MY4 | BMY5 series | 5A-10A, AC/DC coils, plug-in | Same footprint & pinout |
| Finder 40.52 / 40.61 | MP01 series | 5A DPDT, PCB / socket mount | Drop-in replacement |
| Weidmuller DRL / DRM / DRR | BLY5 / BMY5 / BTA6 series | 5A-16A, DIN-rail socket | Same socket compatible |
| Schneider RXM series | BMY5 series | Miniature plug-in, LED and test button options | Same socket compatible |
Omron, Finder, Weidmuller and Schneider are trademarks of their respective owners. MG Relay is not affiliated with, sponsored by, or endorsed by these companies. Cross-reference information is provided for compatibility review only and must be verified against datasheets before purchase.
Relay Product Lines
Every series is tested on 100+ in-house devices against UL508, IEC and TUV standards before shipment.
BMY5 Miniature Relays
Plug-in workhorse for control panels and PLC interfaces, replacing Omron MY, Finder 55 and Schneider RXM.
5A / 10A – 2C / 3C / 4C – LED – manual test
BLY5 Miniature Power Relays
Ice-cube power switching up to 20A in a compact plug-in footprint, built as an alternative to Omron LY and Finder 56.
10A-20A – 1C / 2C / 3C / 4C – plug-in or PCB
BTA High-Power Cube Relays
BTA1, BTA3, BTA6 and BTA12 cube relays from 10A to 30A for motor and heavy-load switching.
10A-30A – DC arc option – 4000Vrms on BTA12
BT199 High-Power Relay
40-50A switching for PV inverters, energy storage and heavy industrial loads.
40A / 50A – panel or DIN-rail mount – Class B / F
MRT1 & M200 Rail Relays
Purpose-built for rolling stock, interlocking, signalling and body-mounted circuits.
EN 50155 – GB/T 21563 – EN 45545-2
MP01 Compact PCB Relay
5A DPDT PCB power relay with 5000VAC coil-contact isolation and 10,000V impulse withstand.
5A DPDT – 8mm creepage – 0.5W coil
BT750H & BT92 Sealed Relays
Hermetically sealed and epoxy-sealed relays for moisture, dust, low temperature and hazardous locations.
BT750H: 10A – BT92: 30A, -40C
Custom Relays for OEM / ODM
Custom coil voltage, contact material, mounting and housing engineered by the in-house R&D lab.
OEM / ODM – design support – rapid prototyping
Why buyers switch to MG Relay
MG Relay combines established manufacturing experience, responsive engineering support and flexible production capabilities to serve OEMs, control-panel manufacturers and industrial equipment suppliers worldwide.
Direct Cross Compatibility
Direct drop-in replacements for Omron, Finder, Weidmüller
Full Global Certifications
Full certifications: UL, cUL, TÜV, CSA, CE, RoHS, REACH
Flexible Customization Options
Custom coil voltage, contact material & mounting options
Factory Direct Cost Advantage
Factory-direct pricing — no distributor markup
Free Sample Program
Free samples for qualified OEM & panel-builder projects
Proven in Demanding Applications
Our relays are developed for applications where electrical performance, installation compatibility and long-term switching reliability are essential.
Industrial Automation
Panel control and PLC interfacing with BMY5 / BLY5 relays. LED status, flag indicator and manual test button make cabinet diagnostics fast.
Rail Transportation
MRT1 and M200 relays for signalling, traction and body-mounted circuits from -50C to +85C.
Photovoltaic & Storage
BT199 switches 40-50A inverter and combiner-box loads with DC arc-quenching magnet options.
Industrial Robots & Machinery
Compact e-stop and I/O interface switching with BMY5 relays and MP01 PCB relays.
Harsh & Hazardous Environments
BT92 epoxy-sealed 30A relays and BT750H hermetic metal-sealed relays survive moisture, dust and low temperature.
Get Your Quote in 24 Hours
Send a part number, datasheet or application description. An engineer, not a bot, replies with pricing, lead time and a cross-reference if needed.
Tell us what you need
Share a part number, quantity, annual volume or application requirement.
Get specs and pricing
Share a part number, quantity, annual volume or application requirement.
Test before volume orders
Validate samples in your own panel, PCB or production line before switching suppliers.
Request Quote & Free Samples
FAQ
The five questions every sourcing email asks, answered before your team has to ask them.
What is your minimum order quantity?
MOQ varies by series and customization level. Standard series are available in small trial quantities; free samples are offered for qualified OEM and panel-builder projects.
Are your relays true drop-in replacements?
For the series listed in MG Relay cross-reference charts, footprint, pinout and socket compatibility are matched to the original brand. We provide comparison tables and samples before switching.
Which certifications do your relays carry?
UL, cUL, TUV, CSA, CE, RoHS and REACH. Rail signal relays comply with EN 50155. Certificates are available on request.
What are typical lead times?
Standard series ship from stock or short production runs; custom designs depend on specification. Exact lead time is confirmed within 24 hours.
Can you customize coil voltage or contact materials?
Yes. MG Relay supports custom coil voltages, contact materials such as AgNi, AgSnO2 and AgCdO, mounting styles and housings.