Guardmaster 440R-S07281 Guardmaster Control Relay, with Two 18MM Proximity Sensors, 45mm CASE, CU2, 2 NO + 1 NC, 24V AC/DC

The CU2 control unit is a compact timing and stop motion detector interface module. By utilizing two independent inductive proximity inputs which monitor the movement of two metal parts of the machine (e.g., sprockets, cams or linkages), the control unit detects when hazardous motion has ceased. When the hazardous motion has stopped the unit will send a signal to unlock guard locking devices. It has been developed to integrate guardlocking interlock switches on machines which have variable or unpredictable run down cycles.

Key Features:
- NPN and PNP Inputs
- Timed off-delay 0.1s to 40 min
- 2 N.O. Safety Outputs, 1 N.C. Auxiliary Output
- 45mm Housing
- Two 18MM Proximity Sensors, 45mm CASE, CU2, 2 NO + 1 NC, 24V AC/DC

Specifications:
- Standards: EN 954-1, ISO 13849-1, IEC/EN 60204-1, IEC 60947-5-1, ANSI B11.19, AS4024
- Category: Cat. 1 per EN 954-1 (ISO13849-1)
- Power Supply: 24V AC/DC or 110/230V AC
- Power Consumption: less than 4VA
- Inputs: 1 NPN and 1 PNP, normally open
- Maximum Input Resistance: 500 Ω
- Reset: Automatic/Manual
- Timed Off-Delay: 0.1s to 40min
- Max. Switched Current/Voltage: 10mA/10V
- Maximum Dropout Time: 90ms
- Indication LEDs: Red = Power on, Red/Green = Timing/Output on
- Impulse Withstand Voltage: 2500V
- Enclosure Protection: IP40 (NEMA 1), DIN 0470
- Terminal Protection: IP20, DIN 0470
- Conductor Size: 1 x 2.5mm2 (14AWG) stranded, 1 x 4mm2 (12AWG) solid
- Case Material: Red polycarbonate
- Mounting: 35mm DIN rail
- Weight: 0.79 pounds