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Building Automation and HVAC Controls

Low-Input / Optoisolated Relays

The optoisolated series of relays may be used when the controller does not have sufficient coil drive power available to energize a relay of the desired contact rating. The power to energize the relay can be brought to the relay on a separate pair of wires along with the control output of the controller, or can be a local power source near the relay.

The voltage output of the controller is used to turn on an optoisolator that connects the power source to the coil of the relay. The optoisolator isolates the Class 2 output of the controller from potential feedback and voltage transients. Using this approach, an LED output, or low current analog output, of a controller can be used to control up to a double pole 20 Amp relay with a 3 horsepower rating. Optoisolated relays are available in T and Panel style.

Enclosed

Model # Description
RIBTE01BEnclosed Relay Hi/Low Separation 20 Amp SPDT, 120 Vac Power Input + 5-25 Vac/dc Control Input
RIBTE01PEnclosed Relay Hi/Low Separation 20 Amp DPDT, 120 Vac/dc Power Input + 5-25 Vac Control Input
RIBTE01SBEnclosed Relay Hi/Low Separation 20 Amp SPST + Override, 120 Vac/dc Power Input + 5-25 Vac Control Input
RIBTE02BEnclosed Relay Hi/Low Separation 20 Amp SPDT, 208-277 Vac Power Input + 5-25 Vac/dc Control Input
RIBTE02PEnclosed Relay Hi/Low Separation 20 Amp DPDT, 208-277 Vac/dc Power Input + 5-25 Vac Control Input
RIBTE02SBEnclosed Relay Hi/Low Separation 20 Amp SPST + Override, 208-277 Vac/dc Power Input + 5-25 Vac Control Input
RIBTE24BEnclosed Relay Hi/Low Separation 20 Amp SPDT, 24 Vac/dc Power Input + 5-25 Vac/dc Control Input
RIBTE24PEnclosed Relay Hi/Low Separation 20 Amp DPDT, 24 Vac/dc Power Input + 5-25 Vac/dc Control Input
RIBTE24SBEnclosed Relay Hi/Low Separation 20 Amp SPST + Override, 24 Vac/dc Power Input + 5-25 Vac/dc Control Input
RIBTELCEnclosed Relay Hi/Low Separation 10 Amp SPDT, 10-30 Vac/dc Power Input + 5-25 Vac/dc Control Input
RIBTELSEnclosed Relay Hi/Low Separation 10 Amp SPST + Override, 10-30 Vac/dc Power Input + 5-25 Vac/dc Control Input

Track Mount

Model # Description
RIBME2401B4.00˝ Track Mount Relay 20 Amp SPDT, 24 Vac/dc/120 Vac Power Input + 5-25 Vac/dc Control Input
RIBME2401P4.00˝ Track Mount Relay 20 Amp DPST, 24 Vac/dc/120 Vac Power Input + 5-25 Vac/dc Control Input
RIBME2401SB4.00˝ Track Mount Relay 20 Amp SPST + Override, 24 Vac/dc/120 Vac Power Input + 5-25 Vac/dc Control Input
RIBME2402B4.00˝ Track Mount Relay 20 Amp SPDT, 24 Vac/dc/208-277 Vac Power Input + 5-25 Vac/dc Control Input
RIBME2402P4.00˝ Track Mount Relay 20 Amp DPST, 24 Vac/dc/208-277 Vac Power Input + 5-25 Vac/dc Control Input
RIBME2402SB4.00˝ Track Mount Relay 20 Amp SPST + Override, 24 Vac/dc/208-277 Vac Power Input + 5-25 Vac/dc Control Input