Siemens Metal IP69, IP67, IP66 Ronis Key Switch, SPDT 10A 2 Positions Latching 3SU1150-4BF11-1FA0

Siemens 3SU1150-4BF11-1FA0 key switch is a high-quality industrial component featuring a robust metal housing with high ingress protection ratings of IP69, IP67, and IP66. This key-operated switch uses a Ronis key system and is designed for latching operation over 2 positions, ensuring secure switching and user-controlled access. It has a contact current rating of 10A and can handle contact AC and DC voltages of up to 500 volts, making it suitable for demanding electrical applications.

The switch features a 22 mm round bezel shape and utilizes screw terminals for reliable wiring. Its mechanical life exceeds 300,000 cycles, reflecting excellent durability in industrial environments. This switch meets multiple international safety standards including UL, CSA, CE, CCC, and EAC, underscoring its compliance with global certification requirements.

Operating over a temperature range from -25°C to 70°C, the switch performs reliably in various harsh and industrial settings. It includes a pair of keys with lock series SB30 and a holder to facilitate installation and secure key retention. The key can be removed in both the off and on positions, offering flexible and secure operation.

Typical applications for this Siemens key switch include electrical panels, automation systems, industrial machines, and other environments requiring robust access-control solutions with high IP protection and electrical reliability. This product is part of the SIRIUS ACT series, known for extended product life and low carbon manufacturing claims, contributing to sustainable industrial practices.

Designed and manufactured in Germany, this Siemens key switch provides precise, dependable control combined with longevity and compliance essential for industrial automation, HVAC, manufacturing, and electrical infrastructure sectors.

Rugged metal housing designed for harsh environments. High ingress protection ratings IP69, IP67, IP66. Ronis key operation with 2 positions and latching function. 10A contact current and 500V AC/DC contact voltage rating.

Screw terminal connection for secure wiring. Mechanical life of 300,000 cycles. Complies with major safety standards including UL, CSA, CE, CCC, and EAC. Operating temperature range from -25°C to 70°C. Includes 2 keys with lock number SB30 and holder.

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