Now available in the UK from Aerco is the Schaltbau S880, a new snap-action switch in the V4 package size, offering precise, repeatable switching with a minimum life of 10 million mechanical operating cycles. The S880 range features self-wiping and self-cleaning silver and gold plated contacts and an operating mechanism proven in all other Schaltbau devices.
The system forces the normally closed contacts to open at any event and the indirect switching operation is triggered by the spring-loaded snap-action mechanism of the switch. Because the switching speed is virtually independent of the speed of actuation, the S880 is especially suited for use with slow-moving actuators.
The positive opening mechanism guarantees a fail-safe operation and, as is crucial with safety switches, the risk of contact welding or spring failure is minimised. Available with various terminal styles such as flat tabs, leads, solder or PCB terminals, the switch is operated by a standard pushbutton and leaf levers of various lengths are available as auxiliary actuators.