440K-H04035

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Overview of Allen Bradley 440K-H04035

The Allen Bradley 440K-H04035 is a guardmaster explosion-proof safety interlock switch designed to meet stringent safety requirements in hazardous environments. Part of the 440 Ex Range, this model offers reliable protection for personnel and equipment in explosive atmospheres classified under Zone 1, Zone 2, Zone 21, and Zone 22. Engineered to withstand tough industrial conditions, the 440K-H04035 ensures safety compliance with ATEX certifications. It features a robust construction suitable for use in industries such as oil and gas, chemicals, and manufacturing where explosive gases or dust may be present. The interlock mechanism provides fail-safe locking to prevent unauthorized or unsafe access to guarded areas.

Key Features of Allen Bradley 440K-H04035

  • Explosion-proof enclosure certified for ATEX Zone 1, 2, 21, and 22 hazardous locations
  • Locking tongue interlock design for enhanced safety during access control
  • Durable housing constructed for long service life in harsh environments
  • Contact rating suitable for switching safety circuits up to 1A at 75V
  • Pre-travel of 0.8mm with operating force of 0.2N for precise actuation
  • Release force of 0.4N ensuring consistent and reliable switching operation
  • Wiring accommodates flexible conductors, improving installation versatility
  • Compatible with related 440 Ex Range safety devices and systems

Technical Specs of 440K-H04035

Specification Value
Enclosure Type Explosion Proof
Contact Configuration 1 Normally Closed / 1 Normally Open or 2 Normally Closed
Operating Force 0.2 N
Release Force 0.4 N
Pre-Travel 0.8 mm
Contact Ratings 1 A at 75 V DC
Certifications ATEX, IECEx
Hazardous Zone Zone 1, 2, 21, 22

Applications / Use Case

Allen Bradley 440K-H04035 safety interlock switches are widely used in industrial settings requiring explosion-proof safety measures. Typical applications include oil refineries, chemical plants, and pharmaceutical manufacturing. These switches ensure that access doors, guards, or hazardous areas remain locked until dangerous energy sources are controlled or shut off. Their explosion-proof certification makes them ideal for environments where flammable gases or combustible dust are present, safeguarding personnel from accidental exposure. The switch’s reliable locking tongue mechanism supports machine safety protocols and lockout/tagout procedures, reducing downtime and enhancing compliance with safety regulations.

Related Resources

Allen Bradley 440K-H04035 Explosion Proof Safety Interlock Switch **Verification Link:** https://literature.rockwellautomation.com/idc/groups/literature/documents/in/440t-in003_-en-p.pdf Tags: Allen Bradley, 440K-H04035, Explosion Proof Switch, Safety Interlock, Industrial Automation, seodone
440K-H04035

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Does it come with a warranty?

Yes, All products are offered wth 1-Year warranty.

What is the condition of the product?

All products sold are New & Unused.

How fast is shipping?

All products are delivered within 2-8 business days depending on our stock location.

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