Log In

Celebrating 43 Years

Follow us on Facebook for all the latest news, updates and promotions


Credit Cards Accepted

website security


pcl-725 image

Relay Actuator and Isolated D/I Card  


Ordering Information

Introduction Return to top of page

The PCL-725 Relay Actuator and Isolated D/I Card provides eight electro-mechanical SPDT relays and eight opto-isolated digital inputs on a half-size card.

Its eight on-board SPDT relays are ideal for applications such as device ON/OFF control or low power switching. A red LED next to each relay signals its ON/OFF status for easy monitoring.

The PCL-725's eight opto-isolated D/I channels are ideal for digital input in noisy environment or with floating potentials.

You can configure each input channel individually by setting jumpers for either isolated or non-isolated input. An on-board DB-37 connector provides access to all input and output channels.




  • Digital signal and contact status monitoring
  • Industrial on/off control
  • Signal switching
  • External relay driving




  • Eight relay outputs
  • Eight opto-isolated digital inputs
  • LED relay status indicators
  • Isolated or non-isolated digital inputs
  • Male DB-37 matching connector included


Return to top of page

Isolated digital input

  • Opto-isolator: 4N35
  • Input channels: 8
  • Input voltage: 5 V to 24 V
  • Input resistance: 560 ohms / 1 W
  • Input buffers: voltage comparators
  • Threshold voltage: 1.5 VDC
  • Breakdown voltage: 300 Vdc

Relay output

  • Relay type: single-pole double-throw (SPDT, Form C)
  • Output type: CH0 to CH3 with Normally Open and Normally Closed, CH4 to CH7 with Normally Open only
  • Contact rating: 120 V, 0.5 A (AC) or 30 V, 1 A (DC)
  • Breakdown voltage: 300 V AC/DC minimum
  • Relay on time: 5 msec typical
  • Relay off time: 5 msec typical
  • Total switching time: 10 msec typical
  • Insulation resistance: 100 M ohms minimum
  • Life expectancy: > 500,000 operations at AC: 110 V/0.3 A, DC: 24 V/1.25 A
  • Relay driver: 12 V @ 33 mA for each relay

General Return to top of page

  • Dimensions: 5.75" x 3.75" (147 mmx 95 mm)
  • I/O port address: Two consecutive bytes from hex 200 to 3F8
  • Power consumption: 5V @ <0.2A; 12 V @ 33 mA for each relay, <0.27 A if all eight relays are energized


Ordering Information

Return to top of page


Relay Actuator and Isolated D/I Card, user's manual and one DB-37 male connector (P/N PCL-10437-0
Return to top of pageReturn to top of page

USA Office

Address: 1480 Gulf Road, Suite 837,
PO Box 1280
Point Roberts, WA 98281

Western Canada - Vancouver BC

Tel:1.800.663.6001 or 1.604.925.6150
Address: 2454 Haywood Ave
West Vancouver, BC V7V 1Y1

Eastern Canada - Markham, Ontario

Tel:1.800.465.0164 or 1.905.513.7027