Siemens 3WL9111-0AF04-0AA0 Closing Coil

Overview

The Siemens 3WL9111-0AF04-0AA0 is an original closing coil accessory for the Siemens SENTRON 3WL air circuit breaker series. This 3WL9111-0AF04-0AA0 enables remote electrical closing of the 3WL ACB, with a rated control voltage range of 208–240 VAC and 220–250 VDC. It actuates the spring stored‑energy mechanism to close the breaker contacts upon pulse energization. It serves as a replaceable internal spare part for low‑voltage switchgear, power distribution skids and DCS feeder cabinets.

Features

The Siemens 3WL9111-0AF04-0AA0 is a dedicated closing coil for SENTRON 3WL air circuit breakers.3WL9111-0AF04-0AA0 supports dual voltage: 208–240 VAC and 220–250 VDC. Designed for short pulse energization; continuous energization will damage the coil. Matched mechanical interface, direct drop‑in replacement inside the mechanism compartment. Built‑in surge suppression to reduce interference to surrounding control circuits. Compatible with both fixed and withdrawable versions of the 3WL frame. Compliant with IEC 60947-2, UL 1066, CSA and CE standards for low‑voltage switchgear accessories.

Specs

Device Type: Closing Coil Model: Siemens 3WL9111-0AF04-0AA0 Brand: Siemens Series: SENTRON 3WL Rated control voltage: 208–240 VAC / 220–250 VDC Function: Remote electrical closing of air circuit breaker Applicable breaker: SENTRON 3WL air circuit breaker Mounting: Internal assembly on the breaker operating mechanism Status: Genuine Siemens ACB spare accessory

Principle

The Siemens 3WL9111-0AF04-0AA0 converts electrical pulse signals into mechanical pulling force. When receiving a closing pulse command, it releases the latch of the spring stored‑energy mechanism, and the spring energy drives the main contacts to close. It only accepts short pulse excitation.

Applications

The Siemens 3WL9111-0AF04-0AA0 is used for maintenance and retrofit of 3WL air circuit breakers in low‑voltage switchgear, distribution skids, industrial plants and DCS feeder cabinets. The 3WL9111-0AF04-0AA0 is stocked as spare replacement for the remote closing control circuit of the 3WL breaker.