The Siemens 3SB5400-0M is a SIRIUS ACT 3SB5 Mounting Monitoring Contact Block (MMCB) designed to enhance the safety and reliability of industrial control systems. Featuring 1 Normally Closed (1 NC) monitoring contact, this contact block monitors the correct mounting and locking of the actuator, helping detect improper installation or accidental removal.
Equipped with screw terminal connections, the 3SB5400-0M ensures secure wiring and dependable electrical performance. It is designed for front plate mounting and is compatible with 22 mm SIRIUS ACT push buttons, selector switches, and emergency stop operators.
This mounting monitoring contact block is commonly used in machine safety circuits, industrial automation systems, motor control centers (MCCs), OEM machinery, and electrical control panels, where monitoring the actuator's mounting status is essential for safe operation.
| Parameter | Specification |
|---|---|
| Product Type | Mounting Monitoring Contact Block (MMCB) |
| Model Number | 3SB5400-0M |
| Product Series | Siemens SIRIUS ACT 3SB5 |
| Contact Configuration | 1 NC (Normally Closed) |
| Terminal Type | Screw Terminal |
| Mounting Type | Front Plate Mounting |
| Compatible Devices | 22 mm Push Buttons, Selector Switches, Emergency Stop Operators |
| Installation | Snap-on |
| Rated Insulation Voltage (Ui) | 690 V |
| Thermal Current (Ith) | 10 A |
| Application | Machine Safety & Industrial Control |
| Brand | Siemens |
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