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Allen Bradley 440G-T27181 Guardmaster TLS-GD2 Guardlock Switch

Allen Bradley 440G-T27181: Guardmaster TLS-GD2 Guardlock Switch

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ManufacturerAllen Bradley

Part number440G-T27181

Actuator Standard

Contacts (Safety/Auxiliary) 2 NC, 1 NO

Solenoid Voltage 24V AC/DC

Function Power to Release

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12-month warranty

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Veteran-owned

CAGE: 9NK75

Standard Actuator Power to Release Function 2 NC Safety Contacts 1 NO Aux Contact 24V AC/DC Solenoid High Locking Force (2000N)

Product description

The Allen Bradley 440G-T27181 is a Guardmaster TLS-GD2 Guardlock Switch featuring a standard actuator and a 'Power to Release' function. It is equipped with two normally closed (NC) safety contacts and one normally open (NO) auxiliary contact. The solenoid operates on 24V AC/DC, and it includes M20 conduit with a 1/2in NPT adapter for connections. This switch meets CCC, CE, CUL, KC, and UL standards, ensuring compliance and reliability in safety-critical applications.

This guardlock switch is designed to ensure machine guards are securely locked during operation and can only be opened when power is removed from the solenoid. The standard actuator and 'Power to Release' mechanism make it suitable for a wide range of industrial machinery. Its high locking force (2000N) and IP69K rating make it resilient in harsh environments and washdown applications, commonly found in food and beverage or pharmaceutical industries.

Stanlo Automation, a veteran-owned distributor, offers the Allen Bradley 440G-T27181 as part of our comprehensive inventory of industrial surplus parts. We are committed to providing our customers with high-quality components and fast, reliable service to keep your operations running smoothly and safely. Partner with Stanlo Automation for your industrial automation needs.

Technical specifications

Actuator	Standard
Contacts (Safety/Auxiliary)	2 NC, 1 NO
Solenoid Voltage	24V AC/DC
Function	Power to Release
Connection Type	M20 Conduit, 1/2in NPT Adapter
Material	Plastic
Standards	CCC, CE, CUL, KC, UL

Common applications

Machine Guarding

Industrial Safety

Food & Beverage

Pharmaceutical

Manufacturing

Automation

Compatible systems

PLCs Safety Relays Industrial Control Panels

Also known as

Allen Bradley 440G-T27181 Guardmaster TLS-GD2 Guardlock Switch 440G-T27181 Safety Interlock

Replaces / compatible with

This TLS-GD2 guardlock switch is designed as a direct replacement or upgrade for safety interlocking systems requiring reliable guard monitoring.

Technical note

Expert tip

The 440G-T27181 has an IP69K rating, making it suitable for washdown applications common in food, beverage, and pharmaceutical industries.

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Frequently asked questions

How does the 'Power to Release' function of the Allen Bradley 440G-T27181 work?

The 'Power to Release' function means the guard remains locked until power is removed from the solenoid. This ensures the guard cannot be opened unless the machine's hazardous motion has stopped and power is intentionally cut.