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Allen Bradley 440K-T11146 GuardMaster Safety Switch

Allen Bradley 440K-T11146 GuardMaster safety switch with 2 NC / 1 NO contacts.

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ManufacturerAllen Bradley

Part number440K-T11146

Manufacturer Allen Bradley

Series GuardMaster 440K

Type Safety Switch

Contact Configuration 2 NC / 1 NO

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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 Robust Construction High Reliability Safety Circuit Flexibility Industrial Grade

Product description

The Allen Bradley 440K-T11146 is a GuardMaster safety switch designed to provide reliable interlocking for machine guards and access points. It features a robust housing and is equipped with 2 Normally Closed (NC) and 1 Normally Open (NO) contact configuration, offering flexibility in safety circuit design. This switch is built to withstand demanding industrial conditions.

This safety switch is commonly used in applications where immediate shutdown of hazardous processes is required upon opening of a guard, such as in presses, conveyors, and automated assembly lines. It plays a critical role in protecting personnel and preventing damage to equipment.

Stanlo Automation, a proud veteran-owned surplus distributor, offers the 440K-T11146. We provide quality, cost-effective solutions for your industrial automation needs, ensuring you get the reliable safety components you require.

Technical specifications

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

Common applications

Machine Guarding

Access Control

Safety Interlocking

Industrial Automation

Presses

Conveyor Systems

Compatible systems

Allen Bradley GuardMaster Safety Relays Allen Bradley MicroLogix Allen Bradley SLC 500

Also known as

Allen Bradley 440K-T11146 Switch Guardmaster Safety Interlock AB Safety Switch 2NC 1NO

Replaces / compatible with

Suitable for replacing older 440K series safety switches or as a component in new safety systems. Compatible with Allen Bradley safety monitoring relays.

Technical note

Expert tip

The 1 NO contact is useful for implementing guard monitoring functions without compromising the primary safety circuit's ability to stop the machine.

What happens next?

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Frequently asked questions

What does the 2 NC / 1 NO contact configuration on the 440K-T11146 offer?

The 2 NC contacts are typically used for the primary safety circuit, ensuring immediate machine stop when the guard is opened. The 1 NO contact can be used for signaling or monitoring purposes, such as indicating the guard status to a PLC or HMI.