The ZB4BZ1043 is a complete body and contact assembly designed for use with Harmony XB4 series push buttons and selector switches. This unit features a single contact block with a 2 NC (Normally Closed), slow-break contact configuration and durable silver alloy contacts. It includes a robust Zamak fixing collar and offers connection via Faston terminals. Engineered for high reliability, it has a mechanical durability of 5 million cycles and an electrical durability of 10 million cycles. The assembly is suitable for industrial environments, with an operating temperature range of -40 to 70°C and an IP20 rating.