Siemens Safety Relay 24V DC Coil Voltage Screw Terminal IP20, Safety Category 4, 92x100x22.5 mm 3SK1112-1BB40

Siemens 3SK1112-1BB40 is a high-performance safety relay with a 24V DC coil voltage, designed primarily for monitoring safety-related circuits in industrial automation and electrical systems. This safety relay features a compact form factor measuring 92 mm in height, 100 mm in length, and 22.5 mm in width, allowing flexible installation in various control panels.

The device provides screw terminal connections for secure and adaptable wiring, with an IP20 rating for protection against solid objects. It operates efficiently across a temperature range of -25°C to 60°C, making it suitable for diverse industrial environments. This relay complies with globally recognized standards such as CCC, CE, EAC, and UL, assuring high safety and reliability.

Equipped with an automatic reset function and monitored start capability, the Siemens 3SK1112-1BB40 enhances system safety by enabling fault detection and continuous operation even in single-channel configurations. It meets Safety Category 4 per ISO 13849-1 and achieves SIL 3 certification, demonstrating its application in critical safety systems including emergency stop circuits and sensor monitoring.

This relay is extensively used in industrial machinery safety, including integration with light barriers, protective door systems, and laser scanners for safety-critical environments. It supports both floating and non-floating sensor connections to accommodate various monitoring needs. The compact design aids smooth integration into existing automation control systems without major modifications.

Equipped with a 24V DC coil voltage suitable for industrial automation safety controls. Compact design with dimensions 92 mm height, 100 mm length, and 22.5 mm width enabling versatile installation. Operates within a temperature range from -25°C to 60°C for broad environmental compatibility.

Compliance with international standards including CCC, CE, EAC, and UL ensures reliability and safety integrity. Features monitored start and automatic reset methods to enhance fault tolerance and continuous operation. Security certified at Safety Category 4 and SIL 3 rating, fulfilling stringent safety requirements for machinery.

Designed for single-channel, screw terminal type connections for flexible electrical wiring setups. Suitable for applications including emergency stop functions, sensor monitoring, protective door systems, and laser scanner safety.

This product is manufactured in Germany and exemplifies Siemens' commitment to safety and quality in industrial automation components. Ideal for use in construction, manufacturing, water treatment, HVAC, and other critical industrial sectors requiring compliance with high safety standards. Browse more Siemens products and Safety Relays within EnvMart to complement your automation systems.