The Rockwell 440N-Z21S17B a safety switch manufactured Rockwell Automation, specifically part of their AllenBradley (AB) product line. This safety switch is designed to safety interlocking and monitoring for various industrial applications.

Here are some key features and specifications of the Rockwell 440N-Z21S17B safety switch:

1. Type: The 440N-Z21S17B is a non-contact magnetic safety switch.

2. Design: It has a compact, rectangular design for easy installation and integration into safety systems.

3. Operation: The switch features a normally closed (NC) contact configuration. When the actuator is within the specified range, the switch is open. When the actuator is moved away or becomes misaligned, the switch closes.

4. Safety Category: It is designed to meet safety Category 4, per EN ISO 13849-1.

5. Contact System: The safety switch utilizes an electronic OSSD (Output Signal Switching Device) for signaling the safety status to other safety devices or control systems.

6. Diagnostic LEDs: The switch is equipped with diagnostic LEDs that provide indication of power, status, and fault conditions.

7. IP Rating: The 440N-Z21S17B has an IP67 rating, meaning it is dust-tight and capable of being immersed in water up to 1 meter for a limited duration.

8. Mounting: The switch can be mounted on various types of machine guards and gates, such as sliding, hinged, or removable guards.