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Allen Bradley

Allen Bradley 440G-LZS21SPLB Power to Lock Guardlock Switch

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

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ManufacturerAllen Bradley

Part number440G-LZS21SPLB

Contact Configuration 2 NC Safety, 1 NO Lock Aux

Connection Type 10 M Lead (PVC Cable)

Function Power to Lock

Voltage 24V DC

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12-month warranty

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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 Lock Functionality 2 NC Safety Contacts 1 NO Auxiliary Contact Solid State Contacts 10m PVC Cable Robust Plastic Housing

Product description

The Allen-Bradley 440G-LZS21SPLB is a high-performance guard locking switch featuring 'Power to Lock' functionality. This means the guard remains locked as long as power is applied, ensuring machine protection. It includes 2 NC safety contacts and 1 NO auxiliary lock contact, with solid-state outputs for reliable performance.

This switch is engineered for applications where machine protection is paramount, such as in high-speed manufacturing or robotic cells. Its robust plastic housing and IP67 rating make it suitable for demanding industrial environments.

Stanlo Automation, a veteran-owned surplus parts distributor, provides the Allen-Bradley 440G-LZS21SPLB. Secure your safety components from a reliable source committed to quality and service.

Technical specifications

Contact Configuration	2 NC Safety, 1 NO Lock Aux
Connection Type	10 M Lead (PVC Cable)
Function	Power to Lock
Voltage	24V DC
Housing Material	Plastic
IP Rating	IP67

Common applications

Machine Protection

High-Speed Manufacturing

Robotic Cells

Automated Assembly Lines

Packaging Equipment

Compatible systems

Allen-Bradley Safety Relays Guardmaster Control Modules 440G-LZ Series Actuators

Also known as

Allen-Bradley Guardmaster 440G-LZS21SPLB 440G-LZ Power to Lock Switch Rockwell Automation 440G-LZS21SPLB

Replaces / compatible with

Designed as part of the 440G-LZ series, it is compatible with corresponding actuators and safety control systems.

Technical note

Expert tip

The 10-meter PVC cable offers flexibility in installation, ensuring it can reach control panels or safety relays in various machine configurations.

What happens next?

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Frequently asked questions

What is the difference between 'Power to Lock' and 'Power to Release' for 440G-LZ switches?

The 'Power to Lock' function (like in the 440G-LZS21SPLB) keeps the guard locked when power is applied to the switch, prioritizing machine protection. The 'Power to Release' function unlocks the guard when power is applied, prioritizing personnel safety.