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Allen Bradley 440E-D21BNYH Lifeline 3 Cable Pull Switch

Allen Bradley 440E-D21BNYH Lifeline 3 Cable Pull Switch.

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ManufacturerAllen Bradley

Part number440E-D21BNYH

Contact Configuration 2 NO, 2 NC

Span Up to 30m

Connection Type 12 Pin M23 Style QD

Material Die Cast Alloy (Yellow)

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12-month warranty

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Veteran-owned

CAGE: 9NK75

2 NO, 2 NC contacts 30m span capability 12-pin M23 QD connector Die-cast alloy housing High visibility yellow color Break before make contacts

Product description

The Allen Bradley 440E-D21BNYH is a Lifeline 3 series cable pull switch featuring 2 normally open (NO) and 2 normally closed (NC) contacts, designed for emergency stop applications. It supports a cable span of up to 30 meters and utilizes a 12-pin M23 style quick disconnect (QD) for connection. The housing is constructed from die-cast alloy, typically in yellow for high visibility.

This switch is crucial for ensuring safety in industrial settings by providing immediate access to emergency stop functionality. It is suitable for use on conveyor belts, processing lines, and other machinery where rapid shutdown is necessary. The design adheres to relevant safety standards for emergency stop devices.

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Technical specifications

Contact Configuration	2 NO, 2 NC
Span	Up to 30m
Connection Type	12 Pin M23 Style QD
Material	Die Cast Alloy (Yellow)
Safety Contacts	2 NC, Auxiliary Contacts: 2 NO
Contact Type	Break Before Make

Common applications

Industrial Automation

Machine Safety

Conveyor Systems

Manufacturing Plants

Emergency Stop Circuits

Compatible systems

Industrial control systems and safety circuits with M23 connector requirements

Also known as

Guardmaster Lifeline 3 Allen Bradley E-stop pull switch M23

Replaces / compatible with

This switch provides versatile safety circuit configurations with its dual NO/NC contact setup and convenient M23 QD connection.

Technical note

Expert tip

The M23 QD connector simplifies installation and maintenance by allowing for quick connection and disconnection of the switch.

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Frequently asked questions

What type of connector does the Allen Bradley 440E-D21BNYH use?

The Allen Bradley 440E-D21BNYH features a 12-pin M23 style quick disconnect (QD) connector. This provides a robust and reliable connection for the safety and auxiliary contacts.