



The 05903 Series 24V 100A High-Current Relay is a normally open, armature relay that can be used in heavy trucks and commercial vehicles.
Glass-fiber-reinforced housing and a compact form help ensure safe use in automotive applications. Configurations of this cube relay are available with 12V and 24V coil voltage ratings.
- Continuous current rating of 100A for high-current contact switching
- Glass-fiber-reinforced nylon housing enables use in automotive applications
- Main contacts are rated for 24V
- Contact voltage drop of ≤40mV @ 40A
- Normally open (also known as monostable) relay design
- Armature relay uses a single coil that pulls down on an armature to close the relay
- Coil voltage options include 12V and 24V
05903 Parts
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Showing 1 to 2 of 2 Total Results
Part Number | Actions | Current Rating (Continuous) in Amps | Current Rating (inrush) in Amps | Voltage Rating (V) | Circuitry | Ingress Protection | Input Terminals | Output Terminals | Contacts | Normal Position | Hardware | Housing | Mounting Method | Recommended Torque | Agency Approval - Shock | Agency Approval - Vibration | Humidity | Temperature Maximum (°C) | Temperature Minimum (°C) | Temperature Maximum (°F) | Temperature Minimum (°F) |
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Part Number | Actions | Current Rating (Continuous) in Amps | Current Rating (inrush) in Amps | Voltage Rating (V) | Circuitry | Ingress Protection | Input Terminals | Output Terminals | Contacts | Normal Position | Hardware | Housing | Mounting Method | Recommended Torque | Agency Approval - Shock | Agency Approval - Vibration | Humidity | Temperature Maximum (°C) | Temperature Minimum (°C) | Temperature Maximum (°F) | Temperature Minimum (°F) | |
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
100 | 24 | SPST NO | IP54 | M6 | M6 | Silver Alloy | Normally Open | M6 | Nylon 66 | Side Mount | Mounting: 2-2.8 Nm, Contact: 3-4.5 Nm | 3G | 1~50 Hz | 85 | -40 | 185 | -40 | |||||
100 | 24 | SPST NO | IP54 | M6 | M6 | Silver Alloy | Normally Open | M6 | Nylon 66 | Side Mount | Mounting: 2-2.8 Nm, Contact: 3-4.5 Nm | 3G | 1~50 Hz | 85 | -40 | 185 | -40 |
05903 Applications
- Heavy Trucks
- Commercial Vehicles
Series: 05903 Resources

Relays and Solenoids Selection Guide
Learn about the intelligent, solid-state, phenolic-body, and plastic-body relays Littelfuse makes for commercial vehicles and other applications.