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Allen Bradley 440K-T11205 GuardMaster Safety Switch

Allen Bradley 440K-T11205 GuardMaster safety switch with 2 NC / 1 NO contacts.

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ManufacturerAllen Bradley

Part number440K-T11205

Manufacturer Allen Bradley

Series GuardMaster 440K

Type Safety Switch

Actuator Type Standard

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12-month warranty

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Same-day dispatch

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Worldwide delivery

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Veteran-owned

CAGE: 9NK75

2 NC / 1 NO Contacts Standard Actuator Robust Design Safety Circuit Flexibility High Reliability Durable

Product description

The Allen Bradley 440K-T11205 is a GuardMaster safety switch equipped with a standard actuator and a contact configuration of 2 Normally Closed (NC) and 1 Normally Open (NO) contacts. This versatile switch is designed for interlocking machine guards and access points, providing a reliable means to stop hazardous machinery when access is gained.

It is crucial for safety applications in industries such as automotive manufacturing, packaging, and material handling, where preventing machinery operation during maintenance or access is critical. The 2 NC contacts provide primary safety switching, while the NO contact can be used for status indication or auxiliary functions.

Stanlo Automation, your veteran-owned source for surplus industrial automation parts, offers the 440K-T11205. We are committed to providing quality components and exceptional service to keep your operations safe and efficient.

Technical specifications

Manufacturer	Allen Bradley
Series	GuardMaster 440K
Type	Safety Switch
Actuator Type	Standard
Contact Configuration	2 NC / 1 NO

Common applications

Machine Guarding

Access Control

Safety Interlocking

Manufacturing

Automotive

Packaging

Material Handling

Compatible systems

Allen Bradley GuardMaster Safety Relays Allen Bradley ControlLogix Allen Bradley MicroLogix

Also known as

Allen Bradley 440K-T11205 Safety Interlock Switch Guardmaster 2NC 1NO AB Machine Safety Switch

Replaces / compatible with

Suitable for applications requiring a safety switch with both NC and NO contacts, replacing older 440K models or as part of new safety system designs. Compatible with Allen Bradley safety relays.

Technical note

Expert tip

The 1 NO contact can be wired to an input on a safety PLC to confirm that the guard has been opened, providing valuable diagnostic information.

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Frequently asked questions

What is the advantage of having a 2 NC / 1 NO contact configuration on the 440K-T11205?

The 2 NC contacts are used for the primary safety function to stop the machine. The additional 1 NO contact can be utilized for status feedback to a PLC, activating an indicator light, or other non-safety-critical functions, providing enhanced system monitoring.