Description
The HRDB Series combines an electromechanical, relay output
with microcontroller timing circuitry. The HRDB offers 12 to 230V
operation in five options and factory fixed, external, or onboard
adjustable time delays with a repeat accuracy of ±0.5%. The
isolated output contact rating allows for direct operation of heavy
loads, such as compressors, pumps, blower motors, heaters, etc.
The HRDB is ideal for OEM applications where cost is a factor.
Operation (Delay-on-Break)
Input voltage must be applied before and during timing. Upon
closure of the initiate switch, the output relay energizes. The
time delay begins when the initiate switch is opened. The output
remains energized during timing. At the end of the time delay,
the output de-energizes. The output will energize if the initiate
switch is closed when input voltage is applied.
Reset: Reclosing the initiate switch during timing resets the time
delay. Loss of input voltage resets the time delay and output.

FEATURES BENEFITS
Microcontroller based Repeat Accuracy + / - 0.5%
Compact, low
cost design Allows flexiblility for OEM applications
Isolated, 30A, SPDT,
NO output contacts
Allows direct operation of heavy loads:
compressors, pumps, blower moters, heaters.