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Allen Bradley

Allen Bradley 440N-Z21SS2HN Guard Master Safety Switch

Allen Bradley 440N-Z21SS2HN Guard Master safety switch, SS, NEMA 6P, washdown.

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

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ManufacturerAllen Bradley

Part number440N-Z21SS2HN

Actuator Material Stainless Steel

Housing Material Stainless Steel

Environmental Rating NEMA 6P

Series 440N Guard Master

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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

Stainless steel actuator and housing NEMA 6P rating Excellent washdown capabilities High corrosion resistance Robust safety interlock

Product description

The Allen Bradley 440N-Z21SS2HN is a high-performance Guard Master safety switch featuring a stainless steel actuator and housing, designed for extreme durability and resistance to corrosive washdown environments. It boasts a NEMA 6P rating, offering superior protection against water ingress and submersion.

This safety switch is essential for operations in the food and beverage, pharmaceutical, and chemical industries where strict hygiene standards and resistance to harsh cleaning agents are required. It plays a vital role in ensuring operator safety by preventing machine operation when access points are breached.

Stanlo Automation, a veteran-owned distributor of surplus industrial automation parts, provides the Allen Bradley 440N-Z21SS2HN. We offer reliable sourcing and competitive pricing for your critical components.

Technical specifications

Actuator Material	Stainless Steel
Housing Material	Stainless Steel
Environmental Rating	NEMA 6P
Series	440N Guard Master
Corrosion Resistance	High

Common applications

Food & Beverage Processing

Pharmaceutical Manufacturing

Chemical Plants

Wet Environments

Industrial Washdown

Machine Guarding Systems

Compatible systems

Designed to integrate with Allen Bradley Guard Master safety relays and control systems for comprehensive safety interlocking.

Also known as

440N-Z21SS2HN Switch AB Guard Master Washdown Stainless Steel Safety Interlock Switch

Replaces / compatible with

This safety switch is an ideal replacement for existing units in washdown applications or for upgrades requiring enhanced corrosion resistance and NEMA 6P protection. Compatible with Guard Master accessories.

Technical note

Expert tip

The robust stainless steel construction and NEMA 6P rating make this switch a reliable choice for continuous operation in extremely wet or corrosive industrial settings.

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Frequently asked questions

What level of protection does the NEMA 6P rating provide for the 440N-Z21SS2HN safety switch?

The NEMA 6P rating for the Allen Bradley 440N-Z21SS2HN indicates that it is designed to withstand submersion in water and is also protected against dust and other contaminants. This makes it exceptionally suitable for washdown environments where equipment is frequently exposed to liquids.