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Allen Bradley

Allen Bradley 440K-E33025 Guardmaster Elf Tongue Interlock Switch

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ManufacturerAllen Bradley

Part number440K-E33025

Contact Configuration 1 NC Safety, 1 NO Aux

Connection Type 4 Pin DC Micro QD

Enclosure Rating IP67

Material Plastic

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12-month warranty

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Veteran-owned

CAGE: 9NK75

1 NC Safety Contact 1 NO Auxiliary Contact 4-Pin DC Micro QD Connector IP67 Rated Plastic Enclosure CCC, CUL, KC, UL Certified

Product description

The Allen-Bradley 440K-E33025 is a Guardmaster Elf tongue interlock switch, designed for safety applications requiring a combination of safety and auxiliary contacts. It features 1 normally closed (NC) safety contact and 1 normally open (NO) auxiliary contact, providing flexibility in system design. This switch utilizes a 4-pin DC Micro QD connector for efficient and reliable connections.

This interlock switch is built with a plastic enclosure and carries an IP67 rating, ensuring resistance to dust and water ingress, making it suitable for challenging industrial conditions. It is designed to monitor the position of machine guards and access panels to prevent operation when they are open. Compliance includes CCC, CUL, KC, and UL standards.

Stanlo Automation, a veteran-owned surplus distributor, offers the Allen-Bradley 440K-E33025. We are committed to providing high-quality automation components at competitive prices to support your operational needs.

Technical specifications

Contact Configuration	1 NC Safety, 1 NO Aux
Connection Type	4 Pin DC Micro QD
Enclosure Rating	IP67
Material	Plastic
Standard	CCC, CUL, KC, UL
Actuator Type	90 Degree

Common applications

Machine Guard Monitoring

Access Control

Industrial Safety

Automation Equipment

Small Machinery Safety

Compatible systems

Machine safety guard interlocking systems

Also known as

440K-E33025 Safety Switch Allen Bradley Elf Interlock Guardmaster Tongue Switch

Replaces / compatible with

This switch is designed to monitor machine guards and doors, ensuring that the machine can only operate when the guard is securely closed.

Technical note

Expert tip

The 4-pin DC Micro QD connector provides a standardized and quick connection for the safety and auxiliary circuits.

What happens next?

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Frequently asked questions

What is the contact configuration of the Allen-Bradley 440K-E33025?

The Allen-Bradley 440K-E33025 features one normally closed (NC) safety contact and one normally open (NO) auxiliary contact. This allows for a safety function to be performed while also providing an additional signal for system monitoring or control.