Functional Features:​ Fixed thermal (overload) and adjustable magnetic (instantaneous short-circuit) trip settings. HACR rated (Heating, Air Conditioning, Refrigeration). Line and load terminals are reversible.

Material Composition:​ Thermoset polyester resin case; copper alloy contacts with silver facing.

Application Scenarios:​ Feeder protection in commercial buildings, industrial motor control centers (MCCs), and HVAC systems.

Installation Requirements:​ Suitable for bolt-on or draw-out configurations depending on the enclosure. Requires adequate ventilation for heat dissipation.

Usage Notes:​ The magnetic trip setting must be set above the locked-rotor current of connected motors. Do not exceed the interrupting rating of the breaker.