A captive bimetal switching unit enables pre-assembly, damage protection, and functional testing before final switch housing assembly.
A captive bimetal switch housing with a parallel PTC enables pretesting, protects parts in storage, and simplifies self-holding switch assembly.
A spacer-fixed spring path keeps galvanic contact stable despite tolerances, cutting contact resistance, wear, and switch rejection rates.
A shape-memory alloy lock keeps an overheated switch open, preventing shock- or vibration-driven reactivation without added complexity.
A partially open housing captures the bimetal and spring discs as one unit, protecting fragile parts and enabling testing before switch assembly.
A prefabricated protected switching unit and internal heating resistor simplify assembly while keeping the switch reliably open after activation.
A captive partially open housing lets the bimetal switch mechanism be pre-assembled, stored safely, and functionally tested before final assembly.
A recessed resin case with a penetrating opening and island support prevents low-temperature interference, preserving breaker contact pressure and low resistance.