WG1630840321 Heater Relay

WG1630840321 Heater Relay

The WG1630840321 is a heater relay made just for HOWO trucks—key for managing the heater circuit. It relies on an electromagnetic coil to control contacts, so the heater switches on/off reliably.Built with tough materials to handle temp changes, it works steady in all climates. Meets OEM specs, fits right in with HOWO’s electrical setup, and keeps the heater running efficiently when needed.
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Description
Technical Parameters

The WG1630840321 is a heater relay made just for HOWO trucks-key for managing the heater circuit. It relies on an electromagnetic coil to control contacts, so the heater switches on/off reliably. Built with tough materials to handle temp changes, it works steady in all climates. Meets OEM specs, fits right in with HOWO's electrical setup, and keeps the heater running efficiently when needed.

 

WG1630840321 HOWO heater relayWG1630840321 HOWO heater relay

WG1630840321 HOWO heater relayWG1630840321 HOWO heater relay

 

Key Specifications

 

 

  • Voltage it's rated for: 24V DC

 

  • Drawing number:WG1630840321

 

  • Contact current: 30A

 

  • Coil resistance: around 80Ω

 

  • Working temp: -40℃ to +85℃

 

  • Relay type: SPDT (Single Pole Double Throw)

 

advantages

 

 

  • Reliable Circuit Switching:Ensures stable on/off control of the heater circuit, preventing intermittent heating issues caused by poor contact.

 

  • Wide Temperature Endurance:Works flawlessly in -40℃ to +85℃, guaranteeing heater activation even in extreme cold or hot climates.

 

  • Long-Service Lifespan:Features wear-resistant contacts and corrosion-proof coils, enduring frequent switching cycles without premature failure.

 

Compatible Models

 

 

  • Fits  HOWO A7, T7H, T5G (confirm via vehicle electrical diagram)

 

FAQ

 

Q: How to troubleshoot a non-working heater?
A: Check relay coil power supply and contact conductivity.

Q: Installation precautions?
A: Align wiring terminals correctly and fasten to prevent loose connections.

Q: Maintenance frequency?
A: Inspect every 15,000 km for contact wear or coil overheating.

 

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