3SE7120-1BF00

The Siemens SIRIUS 3SE7120-1BF00 pull cord switch features a metal housing, IP65 protection, two normally closed contacts, and supports multiple control voltage specifications including 240/400VAC and 24/250VDC.

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Siemens SIRIUS 3SE7120-1BF00 Pull Cord Switch 2NC

Product Positioning

The 3SE7120-1BF00 is a Siemens SIRIUS 3SE7 series metal-cased pull cord switch, providing two sets of normally closed contacts. The body length is 164.5mm, and it is suitable for short-distance machine edge safety protection.

Core Product Advantages and Features

2 sets of normally closed contacts

The dual NC contact design enables dual-loop monitoring, enhancing safety redundancy.

Multi-voltage compatibility

Supports multiple control voltage specifications such as 240/400VAC and 24/250VDC.

Compact straight shape

With a body length of only 164.5mm, it is suitable for machine layout in areas with limited space.

project	Specification
Contact configuration	2 NC
Rated voltage	240/400 VAC, 24/250 VDC
Rated current	0.27/6/3 A
Body length	164.5 mm (linear type)
Protection level	IP65

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