Technical Specifications Frame Rating: 1200A Trip Current Rating: 700A Pole Quantity: 3 Pole Rated Operating Voltage: 600V AC Short‑Circuit Interrupt Rating: 30kA @480V AC Trip Unit Type: Interchangeable thermal‑magnetic trip Mounting Method: Bolt‑on cabinet mounting Operating Temperature: ‑40℃ ~ +70℃ Storage Temperature: ‑50℃ ~ +85℃ Relative Humidity: 5%‑95%, non‑condensing Certifications: UL, CE industrial electrical compliance
Functional Features Interchangeable thermal‑magnetic trip unit for protection‑current setting adjustment. Thermal overload delayed protection and magnetic instantaneous short‑circuit protection function. Front‑panel manual operation handle for local switching‑on and switching‑off control. Mechanical visual trip indicator for fault‑action status identification. Handle pad‑lock mechanism for maintenance lock‑out‑tag‑out safety isolation. Heavy‑duty contact assembly for long‑time large‑current working condition.
Application Scenarios Heavy‑industry factory large‑capacity power distribution branch loop protection. Large‑size medium‑to‑low‑voltage motor power supply circuit protection. Process plant workshop heavy‑load equipment power supply protection. Legacy GE TKM series power distribution cabinet spare‑part replacement. Industrial auxiliary power system fault isolation application.
Structural Characteristics Reinforced large‑frame molded insulation housing with built‑in arc‑quenching chamber. Front‑side manual operation handle and mechanical trip‑status observation window. Detachable interchangeable trip‑unit installation structure. Top‑and‑bottom heavy‑duty copper bolt‑on terminals for power cable connection. Handle pad‑lock mechanical structure for maintenance safety isolation requirement. Internal arc‑shield baffle reduces arc‑flash influence to surrounding cabinet components.
Working Principle Sustained overload current heats bimetallic thermal element to produce bending deformation, triggering delayed mechanical tripping. Under short‑circuit fault condition, huge fault‑current excites magnetic trip coil to realize instantaneous trip action.
Installation Requirements Fix breaker inside standard power distribution cabinet by bolt‑on mounting mode. Carry out protective grounding strictly following local electrical safety specification.
There are no reviews yet.