2-Pack 644 4H0951253 4RA007791-20 Automotive Relay - 40A 12VDC 4-Pin SPST Low-Heat Design - Compatible with Select Vehicle Systems - for Engine Bay & Industrial Use
Product details
| Management number | 237389051 | Release Date | 2026/07/10 | List Price | US$3.20 | Model Number | 237389051 | ||
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| Category | |||||||||
Precision Power Control for Demanding ApplicationsThe 644 4H0951253 SPST Automotive Relay combines compact engineering with industrial-grade durability. Designed for modern vehicles and machinery, its low-heat, energy-efficient design (640mW coil power) minimizes energy loss, making it suitable for electric vehicles and battery-sensitive systems .Key Features:40A High-Current Capacity: Handles resistive loads up to 30A continuous, ensuring reliable operation for headlights, fuel pumps, and HVAC systems.Extended Environmental Resistance: IP67-rated housing protects against dust, water ingress, and extreme temperatures (-40°C to 125°C) .RoHS & ISO Compliance: Meets global safety and environmental standards for automotive and industrial use.Applications:Automotive: Fixes electrical failures in engine bays, including starter circuits and wiper systems.Industrial: Controls motors, pumps, and HVAC units in automation setups or heavy machinery.Retrofitting: Upgrades legacy systems without modifying original wiring harnesses.Note: Always confirm compatibility with your vehicle’s service manual. Not affiliated with any automotive manufacturers.
- Energy-Efficient Operation – 640mW low-power coil design reduces heat generation and battery drain, ideal for electric vehicles and fuel-sensitive applications
- Enhanced Load Management – 40A peak / 30A continuous capacity with silver alloy contacts for stable control of fuel pumps, HVAC fans, and auxiliary lighting
- Multi-Industry Compatibility – Direct replacement for OEM relays in automotive systems and industrial equipment (verify model fitment). SPST design matches standard 4-pin layouts
- Compact & Robust Construction – 15.7mm x 12.3mm resin-sealed housing withstands -40°C to 125°C temperatures and harsh environments (dust, moisture, vibration)
- Single-Unit Reliability – RoHS-compliant and ISO-certified with traceable lot codes. Easy blade terminal installation for tool-free repairs
| ASIN | B0F1Y195PS |
|---|---|
| Model | 644 4H0951253 4RA007791-20 |
| Wattage | 640 Milliwatts |
| Brand Name | Sonzrod |
| Unit Count | 2.0 Count |
| Part Number | 644 4H0951253 4RA007791-20 |
| Coil Voltage | 12 Volts (DC) |
| Contact Type | Normally Open |
| Manufacturer | Sonzrod |
| Mounting Type | Plug In Mount |
| Connector Type | Plug-In |
| Current Rating | 40 Amps |
| Operation Mode | Automatic |
| Contact Material | Silver Alloy |
| Specification Met | OEM |
| Included Components | 2-Pack 644 4H0951253 4RA007791-20 Relay |
| Contact Current Rating | 30 Amps |
| Minimum Switching Voltage | 12 Volts (DC) |
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