The CRD-020 and CRD-005 Programmable Set-point Relays are used for protection, voltage and current threshold sensing to within 1%, control and trip applications
Highlighted area indicates Factory Setting. The CRD-020 unit is shipped from the factory with a 0-5Amp ac input and in an over-current relay mode. The set point relay can be set to provide any one of the four current ranges and modes of operation.
* The output relay will energize when instrument power is applied and the current is above the set point threshold. It will remain in a "Fail Safe" mode until either the input current drops below the set point threshold or instrument power is removed.
** The output relay will energize when instrument power is applied and will remain in a "Fail Safe" mode until either the instrument power is removed or the input current exceeds the set point threshold level.
Ordering codes
CRD-005 0-1mAdc and 0-10Vdc input, 3A relay output, 110Vac powered
CRD-005Y18 0-1mAdc and 0-10Vdc input, 3A relay output, 24Vdc powered
CRD-020 0-20Aac input, 3A relay output, 110Vac powered
CRD-020Y18 0-20Aac input, 3A relay output, 24Vdc powered