Locking provision, OFF position, RONIS lock to prevent unauthorized closing in the operator panel accessory

locking device, OFF pos. Ronis against unauthorized closing in the operator panel accessory for circuit breaker 3WL10 / 3VA27 (SE) 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.