ABB VM1 Vacuum Circuit-Breaker Instruction Manual BA 504/02 E

This document serves as the comprehensive instruction manual (BA 504/02 E) for the ABB VM1 series of vacuum circuit-breakers. Designed for indoor installation in air-insulated switchgear, these circuit-breakers are engineered to handle switching capacities under normal and fault conditions, offering high operational reliability and a long service life with minimal maintenance.

Key Features and Content:

Detailed structure and function of the operating mechanism and breaker poles.
Guidance on installation, commissioning, and operation procedures.
Comprehensive maintenance, inspection, and repair instructions.
Technical data, including performance specifications, dimensions, and wiring diagrams.
Safety recommendations and operating conditions.

The VM1 vacuum circuit-breakers are suitable for various applications, including those with high switching frequencies and short-circuit breaking operations. This manual is essential for specialist electricians and personnel involved in the installation, operation, and maintenance of this equipment.

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