Available in 5V, 6V, 12V & 24V dc relay coil versions, these handy little 2-channel relay board have two independent 5A mains rated SPCO relay outputs. Relay output activates when dc voltage is presented to the corresponding input.
Electrical isolation is provided solely by the relay coil /contact separation (see relay datasheet for specifications). If your application requires a greater degree of electrical isolation then we recommend you use one of our opto-isolated relay boards instead.
Each relay has a back-emf protection diode.
This board can be used to reverse the polarity of a DC supply voltage to, for example, control the direction of a DC motor (see PDF below for connection diagram).
See order code 8043KT for a 1 channel version of this product.
SpecificationsInput Signal: | ||||
Input voltage (nominal) | 5V dc | 6V dc | 12V dc | 24V dc |
---|---|---|---|---|
Input voltage (minimum) | 3.8 dc | 4.5V dc | 9.0V dc | 18V dc |
Input voltage (maximum) | 6.5V dc | 7.8V dc | 15.6V dc | 31.2V dc |
Current (relay active) | 73 mA | 60 mA | 30 mA | 15 mA |
Coil Impedance | 70 Ohm | 100 Ohm | 400 Ohm | 1,600 Ohm |
Board Output Rating: | ||||
Output Type | 2 x SPDT Relays | |||
Output Connections | NO, NC, C (Relay FAQ) | |||
Maximum Output Load (Resistive) | Up to 240Vac or 28Vdc @ 5 Amps max. per relay (Relay Datasheet) | |||
Relay Performance (at Initial Value): | ||||
Contact resistance | 100mOhm Max.@ 1A,6VD | |||
Operating time | 10 mSec. Max | |||
Release time | 5 mSec. Max | |||
Relay Dielectric Strength: | ||||
Between coil & contact | 1000Vac 50/60HZ (1 minute) | |||
Between contacts | 500Vac 50/60HZ (1 minute) | |||
Surge Resistance | 3,000V (between Coil & Contact 1.2x50uSec.) | |||
Relay Max. On/Off Switching: | ||||
Electrical | 30 Ops per Minute | |||
Mechanical | 300 Ops per Minute | |||
Overall dimensions (mm) | ~ 50W x 46L x 25H | |||
Fixing Holes | 4 x M3 | |||
Enclosure | WCAH2855 | |||
Board Connections | Screw terminal blocks | |||
Product Formats | SELF-ASSEMBLY Electronic Kit (KT) or PRE-ASSEMBLED Electronic Module (AS) Product Formats Info | |||
Documentation | User Manual (12V Version) Reversible DC Motor Connection Diagram |