Description
The Allen-Bradley 440N-Z21SS2A is a Guardmaster non-contact safety switch with a rectangular plastic actuator, designed for safeguarding access to hazardous machine areas. It uses solid-state technology and delivers reliable, tamper-resistant operation in safety-critical environments.
Technical Specifications
|
Condition
|
New/Never Used Surplus
|
| Brand |
Allen-Bradley
|
| Category |
|
| Part Number |
440N-Z21SS2A
|
| Subcatecory |
Safety Interlock Switches
|
| Series |
Guardmaster 440N |
| Actuator Type |
Rectangular |
| Contact Type |
Solid-State |
| Contact Configuration |
2 N.C. Safety, 1 N.O. Auxiliary |
| Voltage Range |
20.4–26.4 VDC |
| Material |
Plastic |
| Connection Type |
3 m PVC Cable |
| Standards Compliance |
UL, CE, CCC, C-TICK, KC, CUL |
| Weight |
0.8300 lb |
Information About 440N-Z21SS2A
The 440N-Z21SS2A is part of the Allen-Bradley 440N Guardmaster series and is engineered for non-contact safety applications. It operates with a 20.4–26.4 VDC supply voltage and is equipped with solid-state contacts, ensuring a long operational life and resistance to mechanical wear. This model features 2 normally closed (N.C.) safety outputs and 1 normally open (N.O.) auxiliary output, supporting safety monitoring and machine status indication.
Key Features:
-
Non-Contact Safety Technology: Reduces wear and enables tamper-resistant safety switching
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Solid-State Outputs: Ensures durability with no mechanical contact wear
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2 N.C. Safety + 1 N.O. Auxiliary Contact: Supports both safety circuit and status signaling
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3 m PVC Cable Connection: Pre-wired for quick installation and flexible routing
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Wide Voltage Range (20.4–26.4 VDC): Compatible with standard safety control circuits
The 440N-Z21SS2A enhances machine safety with durable, contactless operation and easy integration into access control systems.
