10821700

Overview

The Littelfuse 10821700 is a commercial vehicle battery disconnect switch designed for heavy-duty applications. It operates within 12 V, 24 V, and 48 V DC systems with continuous current ratings ranging from 40 A to 600 A. The device provides single-pole or double-pole circuitry options and features water-resistant or waterproof housings meeting IP43 to IP67 and IPX9K ingress protection standards. Constructed from durable metals or thermoplastic, it serves as a primary isolation method for trucks, buses, boats, construction equipment, recreational vehicles, and fleet vehicles.

Feature Summary

• Provides direct operator-actuated isolation of the main battery from the electrical system for safety and storage purposes.
• Available in key-operated, lever-operated, and rotary actuator formats to suit various installation requirements.
• Engineered with robust metal or thermoplastic housings capable of withstanding heavy-duty marine and commercial environments.

Applications

• Primary battery isolation for trucks and buses
• Anti-theft and safety shutdown for construction equipment
• Parasitic load prevention for stored recreational vehicles and boats

Procurement Notes

Verify that the selected part number matches the specific voltage rating (12 V, 24 V, or 48 V) and required continuous current capacity for your application. Confirm the necessary ingress protection level, such as IP67 or IPX9K, against environmental exposure. Ensure the actuator style, including push-button, T-handle, rotary knob, key, or lever, aligns with the physical interface constraints of the chassis or panel mount location.

Selection Notes

Select this component based on the maximum continuous current demand of the connected electrical system and the operating voltage. Evaluate the environmental conditions to determine if a water-resistant or fully waterproof housing is required. Consider the available space and preferred user interface when choosing between single-pole or double-pole configurations and specific actuator styles like key or lever operated designs.

Part Context

This product belongs to the Littelfuse manual battery disconnect switch portfolio, which includes key-operated, lever-operated, and rotary formats. These switches are engineered to meet applicable standards for marine and commercial vehicle battery switch applications. The series offers solutions for isolating batteries during maintenance, storage, or emergency situations across various heavy-duty transport sectors.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation. Verify compatibility by matching voltage ratings, current capacities, and mounting specifications with existing units before proceeding with replacement.