This product listing is for the part 440N-Z21SS3PH, manufactured by Allen-Bradley, and is a Guardmaster 440N series non-contact safety interlock switch (magnetic/RFID family) for guarding and door position monitoring in safety circuits..

This product is currently out of stock.

Returns are accepted within 30 days if the item(s) received are not what was ordered or are broken.

Part Specifications:
- Manufacturer: Allen-Bradley
- MPN: 440N-Z21SS3PH
- Series: 440N
- Product family / common name: Guardmaster 440N Non-contact interlock switch
- Intended application: Guard/door position monitoring and safety interlock in machinery safety circuits
- Actuation type: Non-contact (magnetic or RFID coded depending on variant)
- Safety classification / standards: IEC 60947-5-3; ISO 14119; ISO 13849-1; IEC 61508 (SIL) noted for 440N family
- Typical supply / rated voltage (common family variants): 24 V DC (commonly used variant); AC versions available in family V
- Output contact configuration (example family variants): Variants include 1 N.C. + 1 N.O. safety contacts and auxiliary contacts or 2 N.C. configurations depending on specific MPN
- Housing materials (family): Plastic (molded ABS) and stainless steel housings available in the 440N family
- Environmental protection (family): IP66 / IP67 / IP69K ratings available for 440N family variants
- Misalignment tolerance (example): Approximately ±5 mm (family specification varies by actuator/code) mm
- Functional safety metrics (family): PFHD and MTTFd values published for family (e.g., PFHD and MTTFd figures provided in Rockwell documentation for 440N/related families)
- Connection options: Cable (various lengths) or M12/8-pin connector options available depending on variant

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Allen-Bradley

440N-Z21SS3PH

Guardmaster 440N series non-contact safety interlock switch (magnetic/RFID family) for guarding and door position monitoring in safety circuits.

Specifications

Physical

Housing materials (family)

Plastic (molded ABS) and stainless steel housings available in the 440N family

Compliance

Safety classification / standards

IEC 60947-5-3; ISO 14119; ISO 13849-1; IEC 61508 (SIL) noted for 440N family

Environmental protection (family)

IP66 / IP67 / IP69K ratings available for 440N family variants

Functional safety metrics (family)

PFHD and MTTFd values published for family (e.g., PFHD and MTTFd figures provided in Rockwell documentation for 440N/related families)

Technical

Manufacturer

Allen-Bradley

MPN

440N-Z21SS3PH

Series

440N

Product family / common name

Guardmaster 440N Non-contact interlock switch

Intended application

Guard/door position monitoring and safety interlock in machinery safety circuits

Actuation type

Non-contact (magnetic or RFID coded depending on variant)

Typical supply / rated voltage (common family variants)

24 V DC (commonly used variant); AC versions available in family V

Output contact configuration (example family variants)

Variants include 1 N.C. + 1 N.O. safety contacts and auxiliary contacts or 2 N.C. configurations depending on specific MPN

Misalignment tolerance (example)

Approximately ±5 mm (family specification varies by actuator/code) mm

Connection options

Cable (various lengths) or M12/8-pin connector options available depending on variant

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