Description

Siemens 3SB3801-0EF3

SIRIUS 3SB3 Emergency Stop Enclosure | 22 mm Control Device | Red 40 mm Mushroom Pushbutton | 2 NC Contacts | Twist-to-Release

Product Detailed Description

The Siemens 3SB3801-0EF3 is a surface-mounted emergency-stop pushbutton enclosure from the SIRIUS 3SB3 series, designed for industrial machine safety and emergency shutdown applications. It features a yellow plastic enclosure with a protective collar and a red 40 mm mushroom pushbutton. The pushbutton uses a twist-to-release mechanism and incorporates two normally closed (2 NC) contacts for integration into suitable emergency-stop control circuits.

The enclosure has one command position, screw-terminal connections, and cable entries at the top and bottom for M20 cable glands. Its 22 mm control-device format makes it suitable for machine control stations and industrial electrical panels.

Technical Specifications

Replacement Model Introduction

Siemens identifies 3SU1801-0NB00-2AC2 as the preferred successor to the 3SB3801-0EF3. The replacement belongs to the SIRIUS ACT 3SU1 series and provides a comparable yellow enclosure, protective collar, red 40 mm emergency-stop mushroom pushbutton, twist-to-release mechanism, and 1 NC + 1 NC contact configuration.

Before replacing the original unit, verify the terminal arrangement, contact-block configuration, mounting dimensions, and cable-entry requirements. Confirm the complete emergency-stop circuit meets the machine’s required safety performance.

This item is listed for catalogue and inquiry purposes. Availability, condition, revision, warranty coverage, and lead time are confirmed with each quotation.
All items are Distributor Ready-stock Genuine Brand-new Supplying, please inform us if the

Applications