440N-Z21SS2A | Allen-Bradley Guardmaster Non-Contact Switch
Allen-Bradley · HMIs & Displays
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 Safety Control Systems 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 Solid-State Outputs: Ensures durability with no mechanical contact wear 2 N.C. Safety + 1 N.O. Auxiliary Contact: Supports both safety circuit and status signaling 3 m PVC Cable Connection: Pre-wired for quick installation and flexible routing 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.
Brand: Allen-Bradley · Category: HMIs & Displays
Key features
- Non-Contact Safety Technology: Reduces wear and enables tamper-resistant safety switching
- Solid-State Outputs: Ensures durability with no mechanical contact wear
- 2 N.C. Safety + 1 N.O. Auxiliary Contact: Supports both safety circuit and status signaling
- 3 m PVC Cable Connection: Pre-wired for quick installation and flexible routing
- Wide Voltage Range (20.4–26.4 VDC): Compatible with standard safety control circuits
Specifications
| Manufacturer part number | 440N-Z21SS2A |
|---|---|
| Condition | New/Never Used Surplus |
| Brand | Allen-Bradley |
| Category | Safety Control Systems |
| 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 |
| Product type | Safety Interlock Switches |
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