The Siemens 3RH2911-1GA04 is a high-quality auxiliary switch block designed to complement contactor relays in a variety of industrial applications. This component is part of the esteemed SIRIUS series and is engineered to facilitate reliable switching operations within electrical circuits. It features a snap-on mounting design for ease of installation and a compact form factor with dimensions of 36 x 43.7 x 37.5 mm, making it suitable for integration into space-constrained environments.
Crafted for durability and performance, the switch block boasts an impressive mechanical operating life of 10 million cycles and an electrical operating life of 200,000 cycles at AC-15, 230 V. It is equipped with four normally closed (NC) contacts, ensuring consistent and dependable operation. The switch block operates efficiently within a wide ambient temperature range, from -25°C to +60°C during operation, and can withstand storage temperatures from -55°C to +80°C.
Safety and compliance are paramount, and the 3RH2911-1GA04 meets these needs with an insulation voltage rated at 690 V and an impulse voltage resistance of 6 kV. It also adheres to IP20 protection class standards on the front, safeguarding against solid objects larger than 12.5 mm.
This auxiliary switch block is a testament to Siemens' commitment to quality and reliability, making it an essential component for professionals seeking to maintain or enhance the performance of their contactor relay systems.