Square D V5D3133YJVX Medium‑Voltage Vacuum Circuit‑Breaker Unit

Module Feature

V5D3133YJVX is Square D (Schneider Electric) VR‑series draw‑out medium‑voltage vacuum circuit breaker. Rated continuous current 1200A, interrupt rating 250 MVA, designed for installation inside metal‑clad medium‑voltage switchgear cubicles. It adopts vacuum interrupter for arc extinction, supports switching between working / test / isolated positions via draw‑out trolley structure, convenient for inspection, overhaul and spare‑part replacement. It provides overload, short‑circuit fault protection for transformers, large motors and busbars in industrial power distribution systems. The suffix YJVX represents custom control coil voltage and accessory configuration variant of base model V5D3133Y000.

Working principle

When overload or short‑circuit fault occurs, spring‑energy‑storage operating mechanism drives contacts inside vacuum interrupter to separate. Electric arc is rapidly quenched in vacuum chamber to cut‑off fault circuit and safeguard downstream equipment. It supports both manual and electric closing / tripping operations.

Onboard components

Vacuum interrupter bottle, spring energy‑storage operating mechanism, draw‑out trolley chassis, primary tulip contact assembly, secondary control terminal block, mechanical ON/OFF position indicator, mechanical interlock assembly, metal trolley housing.

LED indicators

No built‑in LED lamps. Breaker status shown via mechanical position indicator; fault and alarm signals rely on external switchgear auxiliary contacts and upper monitoring system.

Hardware self‑diagnosis

Monitor energy‑storage completion status, coil circuit integrity and contact position through auxiliary switches. Contact wear and internal mechanical conditions require periodic offline inspection.

Programming software

No dedicated configuration software. Protection parameters are set by the matched external protection relay unit.

Electrical & Process Parameters

Model:V5D3133YJVX Brand:Square D (Schneider Electric) Device type:Draw‑out Medium‑Voltage Vacuum Circuit Breaker Series:VR / V5D Rated current:1200A Interrupt rating:250 MVA Function:Overload and short‑circuit protection for medium‑voltage power distribution system

Mechanical & Structure

Mounting:Draw‑out trolley installation inside medium‑voltage switchgear cubicle Protection class:IP20 (cabinet overall protection grade) Housing:Heavy‑duty metal draw‑out trolley assembly

Environmental

Operating temperature:-5℃ ~ +40℃ Storage temperature:-40℃ ~ +85℃ Ambient humidity:5~95% non‑condensing Certification:Compliant with IEC medium‑voltage switchgear standards Status:Square D original VR‑series medium‑voltage vacuum circuit breaker, custom variant model

Installation

Push draw‑out trolley into switchgear cubicle and lock at working or test position. Complete secondary control wiring, execute manual / electric closing‑tripping mechanical test, cooperate with protection relay for protection setting and system commissioning.

Interface

Primary high‑voltage tulip contacts, secondary control wiring terminals, mechanical interlock interface.

Diagnostic

Cannot close:Energy‑storage incomplete, interlock conditions not satisfied or closing coil failure. Cannot trip:Tripping coil damage or mechanical mechanism jam. Contact overheating:Aging primary tulip contacts or insufficient contact pressure.

Product Brief

Square D V5D3133YJVX draw‑out medium‑voltage vacuum circuit breaker, 1200A /250MVA, custom‑configured variant of VR‑series, used for industrial medium‑voltage switchgear for power distribution fault cut‑off and equipment protection.