The 80-600-0021-00 (LB-450-50) is a high-precision, heavy-duty DC current shunt designed for continuous current monitoring in high-capacity marine and mobile electrical systems. Rated for 450A continuous DC current with a 50mV proportional output signal, this precision resistor integrates seamlessly with CZone monitoring interfaces (such as the MasterShunt, Meter Interface, and Signal Interface) to provide precise current, state-of-charge, and battery capacity telemetry.
Constructed with solid Manganin resistance alloy elements braze-welded to heavy tinned copper busbars, the LB-450-50 offers thermal stability and ultra-low resistance drift under high continuous loads. Mounted on an insulated, flame-retardant phenolic base, it ensures safe high-current DC negative ground path installation across battery banks, inverter/charger feeds, and main distribution panels.
Key Features
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High-Precision Current Measurement: Produces a linear 50mV voltage drop across 450A range for precise digital monitoring and battery calculation.
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Thermal & Resistance Stability: Manganin alloy element minimizes resistance variation caused by operational temperature spikes under heavy electrical loads.
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Corrosion-Resistant Tinned Copper Terminals: Heavy-gauge tinned copper busbars prevent oxidation and maintain electrical conductivity in humid salt-air marine environments.
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High-Impact Insulated Base: Molded flame-retardant base insulates the current path from the hull or mounting surface, preventing accidental ground shorts.
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Seamless CZone Integration: Directly pairs with CZone Meter Interface (MI), Signal Interface (SI), or MasterShunt modules for real-time CAN bus telemetry.
450A/50mV Shunt Supplied with 80-600-0021-00
Dimensions: 3.25"L x 2.8"W x 2.75"H (83mm L x 45mm W x 44mm H)
