Siemens 3WL1110 Air Circuit Breaker

Feature & Principle

It is a Size I intelligent air circuit breaker of Siemens SENTRON 3WL series. Equipped with ETU electronic trip unit, it supports LSI / LSIG multi-stage adjustable protection, power measurement and fault recording. Communication modules such as Profibus and Modbus can be expanded for upper monitoring networking. It adopts modular design, auxiliary contacts, shunt release and undervoltage release can be added later. With mechanical and electrical interlock, it can be installed in fixed or withdrawable form, widely used for incoming cabinet, bus tie and heavy load feeder circuits.

Specifications

Model: 3WL1110 Brand: Siemens Series: SENTRON 3WL Frame size: Size I Rated current In: 1000 A Pole: 3P / 4P Rated operational voltage: 690 V AC Trip unit: ETU electronic trip unit Structure: Fixed / Withdrawable Standard: IEC 60947-2 Application: Industrial main switchboard, factory power distribution, building power supply Certification: CE, UL

Components & Diagnostics

Main contact assembly, arc extinguishing chamber, ETU trip unit, spring charging mechanism, motor operating device, auxiliary switch, communication expansion interface. Common faults: spring charging failure, contact overheating, false tripping, communication offline, trip unit alarm.

Product Brief

3WL1110 air circuit breaker, Siemens low voltage power distribution spare widely used for factory incoming cabinet and low voltage distribution system overhaul and replacement.