SIEMENS MOTOR PROTECTION CIRCUIT BREAKER - 3TW42901AB77-10A..............16A-415V-5.5KW-3P-D.O.L STARTER

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SIEMENS 3TW42901AB77 Motor Protection Circuit Breaker

10A–16A | 5.5kW | 415V | 3-Pole | D.O.L Starter

The SIEMENS 3TW42901AB77 is a robust motor protection circuit breaker suitable for motors up to 5.5kW. Designed for Direct-On-Line (D.O.L) starter systems, it provides reliable overload and short-circuit protection in 415V 3-phase applications, ensuring motor safety and longevity.


Key Features

  • Adjustable current range: 10A to 16A

  • Motor power handling: up to 5.5kW

  • Operating voltage: 415V AC

  • 3-pole design for complete phase protection

  • Ideal for D.O.L (Direct-On-Line) motor starters

  • Built-in overload and short-circuit protection

  • Compact and panel-mountable form factor

  • Conforms to IEC safety and performance standards

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