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Allen Bradley 440T-MDSSJ110CCC Safety Interlock Switch

Allen Bradley 440T-MDSSJ110CCC safety interlock switch with key release.

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ManufacturerAllen Bradley

Part number440T-MDSSJ110CCC

Actuator Type Key

Safety Function Guard Lock Monitoring

Mounting Type Surface Mount

Connection Type 10 Meter Cable with M12 Connector

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12-month warranty

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Same-day dispatch

Order by 2pm CST

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Worldwide delivery

US, EU, Asia, Middle East

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Veteran-owned

CAGE: 9NK75

Key release mechanism for controlled access Robust construction for industrial use High IP67 rating 10m cable with M12 connector Prevents operation when guards are open Tamper-resistant design

Product description

The Allen Bradley 440T-MDSSJ110CCC is a robust safety interlock switch with a key release mechanism, designed for positive door lock monitoring in industrial safety applications. It provides a secure way to ensure that hazardous machinery cannot be accessed or operated while dangerous conditions persist. The switch features a sturdy construction suitable for demanding environments and integrates a key to release the guard.

This safety interlock switch is critical for machine guarding, ensuring compliance with safety standards in sectors such as automotive manufacturing, food and beverage, and general industrial automation. It is used to prevent operation during maintenance or when personnel may be near hazardous moving parts.

Stanlo Automation, a veteran-owned surplus parts distributor, offers the Allen Bradley 440T-MDSSJ110CCC. Secure your machine safety with reliable components sourced from Stanlo Automation.

Technical specifications

Actuator Type	Key
Safety Function	Guard Lock Monitoring
Mounting Type	Surface Mount
Connection Type	10 Meter Cable with M12 Connector
Voltage Rating	110V AC/DC
Current Rating	0.5A AC/DC
IP Rating	IP67
Series	440T-MDSSJ

Common applications

Machine Guarding

Access Control

Industrial Safety Systems

Manufacturing Automation

Food & Beverage Processing

Pharmaceutical Production

Compatible systems

Allen Bradley MSR Series Safety Relays Guardmaster Safety Systems PLC Safety Inputs

Also known as

Allen Bradley 440T-MDSSJ110CCC Interlock Switch Safety Key Interlock

Replaces / compatible with

Designed to replace mechanical interlocks and provide a higher level of safety assurance. Compatible with various Allen Bradley safety relays.

Technical note

Expert tip

The 110V rating offers compatibility with common control voltages, but always verify system voltage requirements before installation.

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Frequently asked questions

How does the key release mechanism on the 440T-MDSSJ110CCC enhance safety?

The key release mechanism allows authorized personnel to release the guard lock only when the machine is in a safe state. This ensures that the guard cannot be opened during hazardous operation and that the key is only released under controlled conditions, preventing accidental access.