Locking provision, OFF position, RONIS lock to prevent unauthorized closing

locking device, OFF pos. Ronis against unauthorized closing for MCCB w/ rotary op. mech. accessory for circuit breaker 3VA27 (handle) Accessories and spare parts for air circuit breakers 3WL10 to 1250A. (also 3VA27 - 1600A) The accessories and replacement parts of the 3WL10 air circuit breaker can easily be replaced or retrofitted at any time. The accessories and replacement parts of the 3WL10 air circuit-breakers are especially characterized by: 1. Simple to configure, build and modify, thanks to modular design 2. RoHS-compliant. 3. Replaceability of the main contacts by customer himself.