Functional Description
The DB-24PR 24-Channel power relay output board consists of 8 form C and 16 form A electromechanical relays for efficient switching of load by programmed control . The contact of each relay can control a 5 A load at 250VAC / 30VDC . The relay is energized by applying a 5 voltage signal to the appropriate relay channel on the 50-pin OPTO-22 compatible connector or 20-pin flat cable connector . Twenty-four enunciator LEDs, one for each relay, light when their associated relay is activated . To avoid overloading your PCˇ¦s power supply, this board needs a +12VDC or +24VDC external power supply..
Features 
8 Form C Relays (SPDT) and 16 FORM A Relay
Accept 20-pin connector to control 8 Form and 8 Form A
relays
Switch up to 5A at 250 VAC / 5A at 30VDC
LEDs
indicated relay status
Designed varistor to protect each channelˇ¦s high
voltage spike
Screw
terminals for easy field wiring
50-Pin
header Connects directly to DIO-24,DIO-48,DIO-144 OPTO-22
compatible board or any 722,724 series board
20-Pin
header connects directly to A-82X,A-626,A-628, Dio-64
Applications
On/off control
Energy management
Test
Automation
Process Control
Specifications RELAY Nominal load : 5 A /120 VAC , 5A /24 VDC
Max. Switching power : 0.1HP
Max. Switching Voltage : 120VAC,60VDC
Max. Switching Current : 5A
Life Expectancy : Mechanical ( 2 x 10 ) , Electrical ( 2 x 10 )
Time Value : Operate ( 10 ms )
Control Logic : Input TTL high (+5V) , relay on
Power
Consumption : 24V@ 0.8Amax.; 5V @ 0.2A
max. Dimension :130mmx210mm
Operating
Temperature : 0 -60?C Storage
Temperature : -20-70?C Humility :
5% to 90 % noncondensing Ordering Information
DB-24PR/24 : 24 channel power relay
Board
(24V version)
DB-24PR/12 : 24 channel power
relayBoard
(12V version)
DB-24PR/DIN/24: DB- 24PR 24V version with DIN-Rail
Mounting
DB-24PR/DIN/12 : DB-24OPR 12V version with DIN-Rail
Mounting
Include
CA-5015 : 50-pin flat cable 1.5m
Options
CA-5020 : 50-pin flat cable 2.0m
CA-2010 : 20-pin flat cable 1.0m
CA-2020 : 20-pin flat cable 2.0m
Ordering Information
DB-24PRD/24 : 24 channel power relay Board
with 37-pin D-sub connector
(24V version)
DB-24PRD/12 : 24 channel power
relayBoard with 37-pin D-sub connector
(12V version)
DB-24PRD/DIN/24: DB- 24PRD 24V version with DIN-Rail
Mounting
DB-24PRD/DIN/12 : DB-24PRD 12V version with DIN-Rail
Mounting
Include
CA-3710 : 37-pin D-sub connector
cable 1.5m
Options
CA-5015 : 50-pin flat cable 1.5m
CA-5020 : 50-pin flat cable 2.0m
CA-3720 : 37-pin D-sub connector
cable 2.0m
