Siemens 3TH4253-0BG4 Control Relay

Siemens 3TH4253-0BG4 is an eight-pole control relay (five normally open and three normally closed contacts) designed for DC-control circuits and provided with screw terminals for straightforward field wiring. Identified as a 53E device under EN 50011, it switches multiple control signals within automation panels, industrial machines, and process-control setups from a single DC coil actuation. The module offers isolation between control and load circuits and is compatible with other 3TH4-series relays, simplifying replacement or expansion in existing control architectures. With its 5NO/3NC configuration, it enables concurrent changes of several auxiliary circuits when the coil energizes, supporting interlocking, routing, and multi-path signaling in compact control assemblies. The screw-terminal design supports reliable connections in industrial environments and aligns with the robust, modular approach typical of Siemens 53E control-relay products.