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Allen Bradley

Allen Bradley 440G-MT47166 Guardmaster Guardlock Switch

Allen Bradley 440G-MT47166 Guardlock Switch

● In Stock 12-Mo Warranty Same-Day Dispatch Ships Worldwide 🎖 Veteran-Owned

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ManufacturerAllen Bradley

Part number440G-MT47166

Actuator No Actuator

Contact Configuration 2 N.C. Safety, 2 N.O Aux

Contact Type Break Before Make

Material Die Cast Alloy (red)

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Response within 1 business hour

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12-month warranty

All units tested

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Same-day dispatch

Order by 2pm CST

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Worldwide delivery

US, EU, Asia, Middle East

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Veteran-owned

CAGE: 9NK75

Power to Release mechanism 2 NC, 2 NO contacts Break Before Make Die-cast alloy housing Diagnostic function & manual override key High holding force

Product description

The Allen Bradley 440G-MT47166 is a Guardmaster MT Guardlock Switch designed for high-integrity safety applications. This 'Power to Release' switch ensures that machine guards remain locked until the solenoid is energized, preventing hazardous access. It is equipped with 2 Normally Closed (NC) safety contacts and 2 Normally Open (NO) auxiliary contacts, featuring a Break Before Make (BBM) contact type.

This switch is ideal for use in industries requiring stringent safety measures, such as automotive manufacturing, heavy machinery, and automated production lines. Its rugged die-cast alloy housing offers excellent durability in harsh environments, and it meets CCC, CE, CUL, KC, and UL safety standards.

Stanlo Automation, a veteran-owned distributor of surplus industrial automation parts, offers the Allen Bradley 440G-MT47166. We are dedicated to providing reliable components and expert service to keep your operations running efficiently and safely.

Technical specifications

Actuator	No Actuator
Contact Configuration	2 N.C. Safety, 2 N.O Aux
Contact Type	Break Before Make
Material	Die Cast Alloy (red)
Solenoid Voltage	24V DC (Enhanced Version with diagnostic function and metal override key)
Conduit Entry	12-Pin M23 QD

Common applications

Automotive Manufacturing

Heavy Machinery

Automated Production

Machine Guarding

Industrial Safety

Compatible systems

Allen-Bradley Guardmaster MT series

Also known as

440G-MT47166 Guardmaster AB Safety Switch MT Guardlock

Replaces / compatible with

Compatible with Allen Bradley Guardmaster 440G-MT series accessories.

Technical note

Expert tip

The 12-pin M23 QD connector on the 440G-MT47166 simplifies installation and allows for quick disconnection, reducing downtime during maintenance.

What happens next?

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Frequently asked questions

Does the Allen Bradley 440G-MT47166 have a manual override and diagnostic features?

Yes, the Allen Bradley 440G-MT47166 is an enhanced version that includes a diagnostic output and a metal override key for manual unlocking. These features aid in troubleshooting and maintenance.