High Current Power Relay

Name:high current relay
Model:BETA92
Contact Form: DPDT (2 Form C)
Resistive Rated Load: 30 A @ 277 VAC
Dielectric Strength: 4000 Vrms (Between Coil and Contacts)
Insulation Class: Class F (155℃)
Operating Temperature: -40℃ ~ +85℃
Mounting Style: Flange Mount, PCB Mount, Quick Connect (QC)

Our products are fully compatible alternatives to most brands of electromagnetic relays

Our High Current Power Relay is engineered for reliable switching of heavy electrical loads in demanding industrial and power control applications. Designed with a DPDT (2 Form C) contact configuration and rated for 30A at 277VAC resistive load, this relay delivers stable high-current performance, excellent electrical durability, and long operational life.

Built for harsh environments, the relay features 4000 Vrms dielectric strength between coil and contacts, Class F (155°C) insulation, and a wide operating temperature range of -40°C to +85°C, ensuring dependable performance in industrial automation and high-power switching systems.

This relay is available with multiple mounting options, including flange mounting, PCB mounting, and quick connect (QC) terminals, allowing flexible integration into various electrical control systems.

Designed as a direct replacement for Schneider / Magnecraft 92 Series relays, it offers full compatibility in pin layout, dimensions, and functionality, enabling seamless drop-in replacement without system redesign. Built with a magnetic circuit structure and contact materials aligned with industry-standard designs, it delivers switching performance comparable to original branded products.

Positioned as a cost-effective OEM relay replacement, this industrial power relay is ideal for industrial automation, power switching equipment, control cabinets, HVAC systems, heavy-duty electrical equipment, and other high-current applications, especially for cost-sensitive projects and high-volume OEM production.

Key Features

  • DPDT (2 Form C) contact configuration
  • 30A @ 277VAC resistive load rating
  • 4000 Vrms dielectric strength (coil to contacts)
  • Class F insulation (155°C)
  • Operating temperature: -40°C to +85°C
  • Flange, PCB, and QC terminal mounting options
  • Direct replacement for Schneider / Magnecraft 92 Series
  • Reliable performance for industrial power switching
  • Ideal for OEM relay replacement and industrial automation
CategorySub-itemSpecification
ContactForm2C / 2A
Load – ResistiveNC: 3A@28VDC/277VAC

NO: 20A@28VDC, 30A@120/277VAC

Load – Motor1hp@120VAC, 2.5hp@240VAC
Switching Power560W, 8310VA
Contact Resistance (Initial)≤50mΩ
Contact MaterialAgSnO₂
Electrical Life100,000 cycles
Mechanical Life5,000,000 cycles
Rated Pickup Voltage (23℃)DC: 75% of rated voltage, AC: 80% of rated voltage
Rated Release Voltage (23℃)10% of rated voltage
Max. Allowable Voltage110% of rated voltage
Insulation Resistance≥1000MΩ @ 500VDC
Coil PowerDC (W)1.7W
AC (VA)4VA
Pickup Time (at rated voltage)≤20ms
Release Time (at rated voltage)≤15ms
Dielectric Withstand VoltageBetween same pole contacts1500VAC, 1 minute
Between opposite pole contacts2000VAC, 1 minute
Between coil and contacts4000VAC, 1 minute
Ambient Temperature-40℃ ~ +65℃ (AC coil)

-40℃ ~ +85℃ (DC coil)

Ambient Humidity5%RH ~ 85%RH
Atmospheric Pressure1 standard atmospheric pressure
Shock Stability98m/s²
Shock Strength980m/s²
Vibration Resistance10Hz ~ 55Hz, double amplitude 1.0mm
Terminal TypeFlange or guide rail mounting
Dimension68.5 * 34.5 * 30 mm
WeightApprox. 90g

Comparison Table of Relay Parameters with Other Brands

FeatureAZ2800/AZ2850 (Zettler)T92 Series (TE Connectivity)BT92 (Chinese Generic)
Contact ArrangementDPST-NO (2 Form A) or DPDT (2 Form C)2 Form A (NO) or 2 Form C (CO)2 Form A (DPST) or 2 Form C (DPDT)
Max Switching Voltage600 VAC / 30 VDC*600 VAC277 VAC / 28 VDC (NC)
Max Switching Current (NO)40A30A / 40A / 50A (depending on type)30A
Max Switching Current (NC)3A3A3A
Contact Material OptionsAgCdO or AgSnO₂AgCdOAgSnOInO
Coil Power (DC)1.7W (nominal)1.7W1.7W
Coil Power (AC)4.0 VA4.0 VA4 VA
Operate Time15ms typ. / 25ms max.25ms max.≤20ms
Release Time10ms typ. / 25ms max.25ms max.≤15ms
Dielectric Strength (Coil-Contact)4000 VAC4000 Vrms4000 VAC
Dielectric Strength (Open Contacts)1500 Vrms1500 VAC
Dielectric Strength (Adjacent Contacts)2000 Vrms2000 VAC
Surge Voltage (Coil-Contact)10 kV (1.2×50μs)8 kV
Insulation Resistance1000 MΩ @ 500 VDC100×10² Ω @ 500 VDC1000 MΩ @ 500 VDC
Clearance (Coil-Contact)8 mm creepage8 mm clearance / 9.5 mm creepage
Temperature Rise (DC)48 K
Temperature Rise (AC)68 K
Max Ambient Temp (DC Coil)-55°C to +85°C-40°C to +85°C
Max Ambient Temp (AC Coil)-55°C to +65°C-40°C to +65°C
Max Coil Temp (Class F)155°C155°C
Vibration Resistance1.65mm DA @ 10-55Hz1.65mm max @ 10-55Hz10-55Hz  1.0mm amplitude
Shock (Operational)10g (11ms)10G (11ms)98 m/s² (≈10G)
Shock (Destructive)100g100g980 m/s² (≈100G)
Initial Contact Resistance<50 mΩ<100 mΩ≤50 mΩ
Mechanical Life5×10⁶ operations10×10⁶ (T92) / 1×10⁶ (T92H)5×10⁶ operations
Electrical Life (NO @ 30A)1×10⁵ cycles100×10³ cycles (AC coil) / 250×10³ (DC coil)1×10⁵ cycles
Enclosure TypeRT II (flux proof), RT III (wash tight)RT I (dust)RT II/RT III
TerminalsPCB or Quick ConnectPCB, Quick Connect, ScrewFlange or Guide Rail
Weight86g86g~90g
Agency ApprovalsVDE, UL/CUR, UL LZGH2/8 (A2L refrigerants)UL, CSA, VDE, TUV– (generic)
Dimensions41.10 × 27.94 × 18.5 mm (PCB version)68.5 × 34.5 × 30 mm
Didn’t find an exact match? Our engineering team can develop customized relay solutions based on your application requirements.
 
 

Frequently Asked Questions

Can I directly replace an Omron or Schneider relay with an MG relay?

Yes, the pin layout follows the same international standard for direct replacement, but you should verify the coil voltage and mounting dimensions match.

Yes, it’s more reliable against vibration-induced loosening and can reduce installation time by about 60%.

MG relays are designed for a wide operating temperature range, typically from -40°C to +70°C, ensuring reliable operation in harsh environments.

What international certifications do your relays have?

MG relays carry comprehensive global approvals including UL (North America), CE, TUV, VDE (Europe), and comply with RoHS 2.0 & REACH environmental standards, ensuring smooth export for your end equipment.

Electromechanical relays offer two key advantages: true physical isolation (zero leakage current when off) for safety, and superior surge withstand capability, making them more robust for harsh industrial power environments.

It uses a magnetic field to stretch and extinguish the powerful spark (arc) created when breaking a high DC current, preventing the contacts from welding together and significantly extending relay life.

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