Hella Mini ISO Relay 24V 20A SPDT 5-Pin Change-Over with Diode
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Expected ship time: usually within 24–48 hours; some vendor items may take longer.
Regular price
$10.66
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Verified Fitment & Application Support
This product is selected for proper fitment and compatibility with the listed engine application. Our team is available to assist with fitment questions, installation considerations, and supporting components to ensure a smooth install and reliable performance.
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HELLA's 4RD 007 903-021 is a 24 volt five-pin change-over relay fitted with a diode across the coil rather than a resistor. The diode gives tighter clamping of the reverse voltage spike at switch-off, which matters in 24 V systems running sensitive control modules on the same circuit.
Key Features
- Change-over (SPDT) contact rated 5 A minimum to 20 A maximum at 80°C ambient
- Parallel coil diode for effective spike suppression
- Supplied without bracket for socket installation
- Minimum 100,000 switching operations
Product Details
- Manufacturer Part Number: 4RD 007 903-021
- Rated voltage: 24 V (operating range 16 V to 30 V)
- Coil resistance: 305 ohm
- Terminals: 5-pole, 6.3 x 0.8 mm blades per ISO 8092-1
- Coil polarity must be observed because a diode is fitted
- Ambient temperature range: -40°C to +125°C
Orders typically ship within 24–48 hours of being received, but because of vendor shipping times some orders may take longer. We ship within the United States only (48 contiguous states plus DC).
Shipping Height: 1.1
Shipping Length: 2.36
Shipping Width: 1.5
California Proposition 65
WARNING: This product can expose you to chemicals that are known to the State of California to cause cancer and/or reproductive harm. For more information, visit
www.P65Warnings.ca.gov.