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Allen Bradley 440KC21074 GuardMaster Safety Switch

Allen Bradley 440KC21074 GuardMaster safety switch with key interlock.

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

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ManufacturerAllen Bradley

Part number440KC21074

Type Safety Switch

Series GuardMaster 440K

Actuator Type Key Interlock

Contact Configuration 2 NC / 1 NO

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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

Key interlock mechanism 2 NC / 1 NO contact configuration Robust industrial design IP65 rated enclosure Ensures guard security Prevents hazardous machine access

Product description

The Allen Bradley 440KC21074 is a GuardMaster safety switch, engineered for robust machine guarding and interlocking functions. Built to withstand demanding industrial environments, this switch ensures reliable operation and enhanced personnel safety by preventing machine operation until safety guards are securely in place. It features a key interlock mechanism crucial for controlled access to hazardous machinery.

This safety switch is commonly implemented in manufacturing facilities, automotive plants, and packaging operations where worker safety is paramount. It plays a vital role in preventing accidents by ensuring that dangerous machine parts remain inaccessible during operation, thus complying with safety regulations.

Stanlo Automation, a veteran-owned distributor of surplus industrial automation parts, offers the Allen Bradley 440KC21074 at competitive prices. We are dedicated to providing high-quality, reliable components to keep your operations running safely and efficiently.

Technical specifications

Type	Safety Switch
Series	GuardMaster 440K
Actuator Type	Key Interlock
Contact Configuration	2 NC / 1 NO
Enclosure Rating	IP65

Common applications

Industrial Machinery

Packaging Equipment

Automotive Manufacturing

Material Handling

Automated Assembly

Food Processing

Compatible systems

Allen Bradley Safety Relays GuardMaster Systems Industrial Control Panels

Also known as

Allen Bradley 440K safety interlock GuardMaster T21074 AB safety interlock switch

Replaces / compatible with

The 440KC21074 is part of the Allen Bradley GuardMaster 440K series, providing advanced safety interlocking for industrial machinery. It integrates with safety control systems.

Technical note

Expert tip

The NC contacts are typically wired in series with a safety relay to provide a direct safety shutdown if the guard is breached.

What happens next?

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Frequently asked questions

What is the primary purpose of the key interlock on the Allen Bradley 440KC21074 safety switch?

The key interlock on the Allen Bradley 440KC21074 safety switch ensures that a machine cannot be started until the guard is closed and the key is removed from the actuator. This prevents personnel from entering hazardous areas while the machine is in operation.