Hella
Hella Heavy-Duty Battery Master Switch – 250A / 600A / 2500A
Hella Heavy-Duty Battery Master Switch – 250A / 600A / 2500A
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The Hella Heavy-Duty Battery Master Switch is a robust, key-operated battery isolator designed for demanding 12V and 24V automotive and industrial electrical applications.
Manufactured in Italy, this heavy-duty metal switch is suited to high-current installations, including electric winch systems, 4WDs, trucks, buses and earthmoving equipment.
With three specified current ratings, this switch handles up to 250A continuous current, 600A for 2 minutes, and 2500A for 10 seconds, making it a versatile option for applications requiring reliable battery isolation under demanding electrical loads.
Key Features
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Heavy-duty metal construction
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Manufactured in Italy
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Suitable for 12V and 24V electrical systems
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250A maximum continuous current
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600A maximum current for 2 minutes
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2500A maximum current for 10 seconds
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IP65-rated protection against dust and high-pressure water spray
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Key-operated battery isolation
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2 × M10 threaded electrical terminals
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Suitable for automotive, 4WD, winch and industrial applications
Technical Specifications
| Specification | Details |
|---|---|
| Operating voltage | 12V / 24V |
| Continuous current | 250A |
| Current for 2 minutes | 600A |
| Peak current for 10 seconds | 2500A |
| Continuous current test conditions | 60°C maximum ambient temperature, with 70mm² cable and ring-type terminals |
| Electrical terminals | 2 × M10 studs |
| Maximum terminal torque | 22Nm |
| Mounting hole diameter | 22mm |
| Maximum mounting bolt diameter | 6mm |
| Protection rating | IP65 |
| Country of manufacture | Italy |
Installation Notes
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Recommended for installation in a dry area.
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Not designed for marine applications.
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Ensure cable sizing, connections and installation are appropriate for the intended electrical load.
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Do not exceed the specified terminal tightening torque of 22Nm.
Important: The stated current ratings apply to their specified time periods. The 250A continuous rating is based on the manufacturer's stated test conditions. Always ensure the switch is suitable for the electrical demands of your particular application.
