Siemens 3SE5 Series Round Plunger Limit Switch, 1 NO/1 NC, IP66 IP67 Metal Housing, Snap Action Contact, 4A 3SE5112-0BA00

Siemens 3SE5112-0BA00 is a high-quality round plunger limit switch designed for demanding industrial and automation applications. It features a robust metal housing rated at IP66 and IP67 for excellent protection against dust and water ingress.

With a contact configuration of 1 normally open (NO) and 1 normally closed (NC) snap action contacts, this limit switch supports switching currents of up to 4 amperes, making it suitable for various control circuits.

The switch operates reliably in a temperature range from -25°C to 85°C and supports universal mounting orientation for flexible installation options. Its compact size with dimensions 85.7mm x 40.5mm x 37.3mm allows for use in tight spaces.

Mechanical endurance is rated to withstand up to 15 million cycles, ensuring long service life. Conduit entry uses M20 x 1.5 threads, facilitating standard cable connections.

Compliant with internationally recognized standards including IEC, RoHS, UL, CSA, CCC, EAC, and CE, this product guarantees quality and safety compliance for a wide range of industrial environments.

The 3SE5 series enables safety applications reaching Category 4 per ISO 13849-1 standard when paired with suitable fail-safe control units like 3TK28, ASISafe, SIMATIC, or SINUMERIK, ensuring highest safety levels.

Thanks to its modular design with plug-mounted actuator heads that can rotate in 22.5° increments, installation, wiring, and maintenance times are reduced. The integrated chlorinated rubber diaphragm enhances functional safety, especially in cold and aggressive environments.

This limit switch is ideally suited for use in industrial automation, manufacturing plants, processing machinery, HVAC systems, and safety interlock applications requiring precise position detection and control.

The device features snap action contact type for reliable switching. Designed to carry switching current up to 4 amperes. Operates within a temperature range of -25°C to 85°C for versatile industrial applications. Equipped with universal mounting orientation and M20 x 1.5 conduit entry for flexible installation.

Durable mechanical life of up to 15 million cycles ensures long-term reliability. Compact dimensions of approximately 85.7mm length, 40.5mm width, and 37.3mm depth. Conforms to international standards including IEC, RoHS, UL, CSA, CCC, EAC, and CE.

Ideal for safety applications up to Category 4 to ISO 13849-1 when used with appropriate control units. Features quick mounting and wiring enabled by a modular, consistent design. Suitable for industrial, automation, manufacturing, and safety use cases.

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