Available in 5V, 6V, 12V & 24V dc relay coil versions, these handy little relay boards use a small PCB to carry a mains rated SPDT relay with Common, Normally Open and Normally Closed connection options. Relay activates when dc voltage is applied to the input.
Electrical isolation is provided solely by the relay coil /contact interface (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.
The board includes a back-emf protection diode across the relay coil.
See order code 8045KT for a 2 channel version of this product.
Specifications| Input 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 | 1 x SPDT Relay | |||
| 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 ax. On/Off Switching: | ||||
| Electrical | 30 Ops per Minute | |||
| Mechanical | 300 Ops per Minute | |||
| Overall dimensions (mm) | ~ 38Wx30Lx20H | |||
| Fixing Holes | 4 x M3 | |||
| Enclosure | WCAH2855 | |||
| Board Connections | Screw terminal blocks | |||
| Product Format | SELF-ASSEMBLY Electronic Kit (KT)Product Formats Info | |||
| Documentation | User Manual (12V Version) | |||
