Thermal Trip Unit for MCB (Miniature Circuit Breaker) 3054050
When an overcurrent flows through the MCB, the bimetallic strip heats up and bends out of shape. The deformation of the bimetallic strip releases the latch. The latch cuts off the current in the circuit, causing the MCB to open.
Whenever a continuous overcurrent flows through the MCB, the bimetallic strip heats up and bends out of shape. The deformation of the bimetallic strip releases the mechanical latch. Since this mechanical latch is connected to the operating mechanism, it disconnects the MCB contacts, and the MCB opens, cutting off the current in the circuit. To restart the current, the MCB must be opened manually. This mechanism prevents malfunctions due to overcurrent or overload and short circuits.
When motor winding temperatures reach critical levels, the HAIPART bimetallic thermal trip unit performs nanometer-scale deformation calculations. Its temperature-sensing element, made of aviation-grade nickel-chromium composite material, boasts a thermal expansion coefficient accurate to ±0.5%/°C. Under extreme operating conditions such as chemical and metallurgical processes, our thermal memory alloy automatically compensates for ambient temperature fluctuations, eliminating the possibility of false overload protection.
Why choose the HAIPART Thermal Trip Unit?
✅
A composite metal layer bonded by vacuum diffusion welding increases thermal response speed by 40%, maintaining ±5% operational consistency in ambient temperatures from -25°C to 60°C.
✅
A Swiss CNC-machined V-groove latch mechanism controls the tripping force to 0.49N ± 0.03N, preventing false tripping.
✅
Exclusive rapid cooling and reset technology restores the metal plate to its original shape within 90 seconds after power failure, far exceeding the industry average of 300 seconds.
Applications:
Suitable for home power, industrial production lines, new energy photovoltaics, and other applications.
When motor winding temperatures reach critical levels, the HAIPART bimetallic thermal trip unit performs nanometer-scale deformation calculations. Its temperature-sensing element, made of aviation-grade nickel-chromium composite material, boasts a thermal expansion coefficient accurate to ±0.5%/°C. Under extreme operating conditions such as chemical and metallurgical processes, our thermal memory alloy automatically compensates for ambient temperature fluctuations, eliminating the possibility of false overload protection.
Why choose the HAIPART Thermal Trip Unit?
✅
A composite metal layer bonded by vacuum diffusion welding increases thermal response speed by 40%, maintaining ±5% operational consistency in ambient temperatures from -25°C to 60°C.
✅
A Swiss CNC-machined V-groove latch mechanism controls the tripping force to 0.49N ± 0.03N, preventing false tripping.
✅
Exclusive rapid cooling and reset technology restores the metal plate to its original shape within 90 seconds after power failure, far exceeding the industry average of 300 seconds.
Applications:
Suitable for home power, industrial production lines, new energy photovoltaics, and other applications.
