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Allen Bradley

Allen Bradley 440N-Z21SS2BN9 Guard Master SS NEMA 6P Safety Switch

Allen Bradley 440N-Z21SS2BN9 Guard Master safety switch, SS, NEMA 6P, advanced safety.

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ManufacturerAllen Bradley

Part number440N-Z21SS2BN9

Actuator Material Stainless Steel

Housing Material Stainless Steel

Environmental Rating NEMA 6P

Safety Function Integrated

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12-month warranty

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Veteran-owned

CAGE: 9NK75

Stainless steel construction NEMA 6P rating Integrated safety features High resistance to washdowns and corrosion Robust machine guarding

Product description

The Allen Bradley 440N-Z21SS2BN9 is an advanced Guard Master safety switch featuring a stainless steel actuator and housing, delivering exceptional durability and corrosion resistance. It is rated NEMA 6P, providing superior protection against water, dust, and submersion, making it ideal for the most demanding washdown and hygienic applications.

This safety switch is critical for industries like food and beverage, pharmaceuticals, and chemical processing, where equipment must withstand aggressive cleaning and harsh environmental conditions. It offers integrated safety functions for enhanced machine protection and operator safety.

Stanlo Automation, your veteran-owned source for surplus industrial automation parts, offers the Allen Bradley 440N-Z21SS2BN9. We provide reliable access to essential components for your operational needs.

Technical specifications

Actuator Material	Stainless Steel
Housing Material	Stainless Steel
Environmental Rating	NEMA 6P
Safety Function	Integrated
Series	440N Guard Master

Common applications

Food & Beverage Processing

Pharmaceutical Manufacturing

Chemical Plants

Hygienic Environments

Washdown Duty

Industrial Safety Systems

Compatible systems

Designed for use with Allen Bradley Guard Master safety relays and programmable logic controllers for comprehensive safety interlocking solutions.

Also known as

AB 440N-Z21SS2BN9 Guard Master Safety Interlock SS NEMA 6P Safety Switch

Replaces / compatible with

This advanced safety switch can replace existing Allen Bradley units or provide an upgrade for applications requiring integrated safety features and superior environmental protection. Compatible with Guard Master accessories.

Technical note

Expert tip

The integrated safety features of the 440N-Z21SS2BN9 can reduce panel space and simplify wiring by potentially eliminating the need for separate safety relays in certain configurations.

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Frequently asked questions

What makes the 440N-Z21SS2BN9 suitable for hygienic and washdown environments?

The 440N-Z21SS2BN9 is built with stainless steel for excellent corrosion resistance and features a NEMA 6P rating, which signifies its ability to withstand submersion and high-pressure washdowns. This ensures its reliability in demanding sanitary applications.