Siemens 3AY1511-3F Spring Charge Motor Unit

Feature & Principle

This motor drives the gear mechanism to compress and store energy for the closing spring of vacuum circuit breaker. It stops automatically once spring is fully charged. It provides reliable energy storage for breaker closing action and supports repeated switching cycles in medium voltage switchgear.

Specifications

Model: 3AY1511-3F Brand: Siemens Applicable breaker: 3AH series vacuum circuit breaker Power supply: AC/DC compatible Function: Spring energy storage Mounting: Installed inside circuit breaker mechanism chamber Certification: IEC, CE

Components & Diagnostics

DC motor body, reduction gear set, limit switch, wiring terminal. Common faults: motor burnout, gear wear, limit switch failure, spring not charging.

Product Brief

3AY1511-3F charge motor, Siemens medium voltage switchgear spare widely used for substation vacuum circuit breaker maintenance.