24-channel Solid State Relay Output Board. Includes CA-3710(37-pin D-sub Cable)

DB-24SSR/D (24-channel SSR Output Board)

24-channel Solid State Relay Output Board. Includes CA-3710(37-pin D-sub Cable)

  Price:  $839.00  


Functional Description

The DB-24SSR/DB-24SSRDC includes 24 normally open, or form A, solid-state relays The board interface to filed logic signals, eliminating ground-loop problems and isolating the host computer from damaging voltages. The user can use the DB-24SSR/DB-24SSRDC to switch high voltage load, up to 240 VAC/50 VDC and up to 4 A. The relay is energized by applying a 5-voltage signal to the appropriate relay channel on the 50-pin header or 37-pin D-sub connector. Twenty-four enunciator LEDs, one for each relay, light when their associated relay is activated. Because there is a D-sub 37-pin connector on the board, the user may use it to interface to any TTL output board. In other words, the user may use it as a general purpose solid state relay output board.


  • 24 optically isolated digital output channels
  • 24 form A solid-state relays
  • Switch up to 4 A at 250 VAC/50 VDC for DB-24SSR/DB-24SSRDC
  • One OPTO-22 Compatible Connector and one 37-pin D-sub connector and one 20-pin connector
  • Connects directly to OPTO-22 compatible board or any 722,724 series board
  • LED’s indicated relay status
  • Screw terminals for easy field wiring

Reference & Support


Solid State Relay AC DC
Load Voltage 50~250 VAC 3~50 VDC
Maxi. Load Current 4 A
Repetitive Peak OFF Voltage 600 V 1 mA
Max. “ON-state “ Voltage Drop 1.5 V 1.2 V
Surge Current 50 A 10 A
Maxi. “OFF-State” Leakage Current 5 mA 1 μA
Mini. Load Current 20 mA 1 mA
Breakdown Voltage 2,500 V (Between Input & Output)
Insulation resistance. i. 100,000,000 Ω(min.)
Operate time , 1/2 cycle of voltage sine wave 1 ms (max.) 0.5 ms (max.)
Zero Crossing Yes
Snubber Circuit Yes
Power Consumption 0.4 A @ +5 V (max.)
Operation Temperature 0 ~ 60 °C
Storage Temperature -20 °C ~ 70 °C
Humidity 5% ~ 90% RH, non-condensing
Dimension 130 mm x 220 mm


  • On/off control
  • Energy management
  • Test Automation
  • Process Control