KEYONG KQJ(T93) New Energy Relay 50A Miniature High Power Relay for Solar EV Charging is specially designed for renewable energy systems, EV charging stations, solar inverters, battery management systems, and industrial motor controls. Featuring high switching capability up to 50A and maximum switching power of 7500VA, this relay delivers stable and reliable performance for demanding new energy applications.
Built with silver alloy contacts for low contact resistance and long electrical life, the relay supports 1 Form A, 1 Form B, and 1 Form C contact configurations, with multiple coil voltage options from 5VDC to 48VDC. Operating reliably in temperatures from -40℃ to +105℃, the relay offers excellent dielectric strength, high mechanical endurance, and optional sealed or open-type construction for flexible installation.
New Energy Relay 50A Miniature High Power Relay for Solar EV Charging is widely used in EV chargers, photovoltaic systems, energy storage equipment, and smart power control devices. Free samples, OEM customization, engineering support, and technical documentation are available for global customers.
Compact Miniature Design
Compared with traditional power relays, this miniature relay saves installation space while maintaining high-current switching capability, making it ideal for compact energy control systems.
Reliable High Current Switching
The relay delivers stable 50A load switching performance with low contact resistance and excellent conductivity, ensuring safe and efficient operation in EV charging and solar applications.
Optimized for New Energy Systems
Engineered for renewable energy equipment, this relay provides dependable performance in photovoltaic systems, battery storage solutions, and electric vehicle charging infrastructure.
Long Service Life
With high-quality contact materials and advanced manufacturing technology, the relay offers excellent electrical endurance and long-term reliability under continuous operation.
| Contact arrangment | A,B,C |
| Contact resistance | ≤100mΩ(1A 6VDC) |
| Contact material | Silver alloy:AgSnO₂ In₂O₂、AgSnO₂、AgNi |
| Contact rating(Res.load) | 20A/30A/50A 250VAC,1-1/2HP240VAC,1HP 120VAC |
| Max switching voltage | 250VAC |
| Max switching current | 50A |
| Max switching power | 7500VA |
| Electrical endurance Frequency:360 ops/h) | 1×10⁵ops/1×10⁴ops |
| Mechanical endurance(Frequency:18000 ops/h) | 1×10⁷ops |
| Power consumption(W) | 0.9W(L) | |||||||
| Nominal voltage(VDC) | 05 | 06 | 09 | 12 | 18 | 24 | 36 | 48 |
| Coil resistance(Ω±10%) | 27.7 | 40 | 90 | 160 | 360 | 640 | 1440 | 2560 |
| Pick-up voltage(Max) | 75%(Nominal voltage) | |||||||
| Drop-out voltage(Min) | 10%(Nominal voltage) | |||||||
| Max allowable overdrive voltage(VDC) | 130%(Nominal voltage) | |||||||
| Insulation level | B/F | |
| Insulation resistance | 1000MΩ(500VDC) | |
| Dielectric strength(Leakage current 1mA) | Between coil and contacts | 2000VAC 1min |
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Between open contacts | 1500VAC 1min |
| Operate time(at nominal voltage) | ≤15ms | |
| Release time(without diode)(at nominal voltage) | ≤10ms | |
| Humidity | 5%～85%RH | |
| Ambient temperature | -40℃~+85℃/+105℃ | |
| Shock resistance | Functional | 98m/s² |
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Destructive | 980m/s² |
| Vibration resistance(Double amplitude) | 10Hz~55Hz 1.5mm | |
| Weight | Approx 30g | |
| Construction | Sealed Flux proofed | |
Solar inverters, EV charging stations, battery energy storage systems, industrial battery management, UPS power supplies, motor control centers, HVAC equipment, agricultural machinery, and industrial automation
1.What applications is this 50A miniature relay suitable for?
This relay is ideal for EV charging stations, solar power systems, battery management systems, energy storage equipment, and other high-current DC switching applications.
2.Can the relay support customized coil voltages?
Yes. Customized coil voltages and contact configurations are available according to project requirements.
3.Is this relay suitable for harsh environments?
Yes. The relay is designed with strong resistance to heat, vibration, and demanding industrial environments, ensuring stable long-term performance.
4.Do you provide OEM or ODM service?
Yes. We support OEM and ODM manufacturing, including customized specifications, branding, and packaging solutions.
Address
350 Renmin North Road, Hengxi Town, Yinzhou District, Ningbo City, Zhejiang Province, China
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