Telco Envirotrols Inc.

Women's Business Enterprise National Council

 

Specializing in Environmental Equipment, Controls, and Parts

Downloadable Order Form

Home

TEI News Page

Controls Parts

Energy Management

ASI Controls Building Automation

ASI Telco Panel

Bard Wall-Mount and HVAC Equipment

Bard HVAC Parts Supply

Bard Controllers

Nesbitt Equipment

Gas Detection

Environmental Monitors

 
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.

 

T Style Optoisolated Pilot Relays
Model # Supply Voltage Control Voltage AC/DC Relays Contacts Resistive Motor Ballast Tungsten Pilot Duty Override Switch
RIBTELC 10-30 5-25 1 SPDT 10A 1/3 HP 480VA 600W 480VA  
RIBTELS 10-30 5-25 1 SPST 10A 1/3 HP 480VA 600W 480VA 1

 

T Style Optoisolated Power Relays
Model # Supply Voltage Control Voltage Relays Contacts Resistive Motor Ballast Tungsten Pilot Duty Override Switch
AC/DC AC AC/DC
RIBTE24B 24   5-25 1 SPDT 20A 2 HP 20A 1200W 1110VA  
RIBTE01B   120 5-25 1 SPDT 20A 2 HP 20A 1200W 1110VA  
RIBTE02B   208-277 5-25 1 SPDT 20A 2 HP 20A 1200W 1110VA  
RIBTE24SB 24   5-25 1 SPST 20A 2 HP 20A  1200W 1110VA 1
RIBTE01SB   120 5-25 1 SPST 20A 2 HP 20A 1200W 1110VA 1
RIBTE02SB   208-277 5-25 1 SPST 20A 2 HP 20A 1200W 1110VA 1
RIBTE24P 24   5-25 1 DPDT 20A 3 HP 20A   1640VA  
RIBTE01P   120 5-25 1 DPDT 20A 3 HP 20A   1640VA  
RIBTE02P   208-277 5-25 1 DPDT 20A 3 HP 20A   1640VA  

 

Panel Mount Optoisolated Power Relays
Model # Supply Voltage Control Voltage Relays Contacts Resistive Motor Ballast Tungsten Pilot Duty Override Switch
AC/DC AC AC/DC
RIBME2401B 24 120 5-25 1 SPDT 20A 2 HP 20A 1200W 1110VA  
RIBME2402B 24 208-277 5-25 1 SPDT 20A 2 HP 20A 1200W 1110VA  
RIBME2401SB 24 120 5-25 1 SPST 20A 2 HP 20A 1200W 1110VA  
RIBME2402SB 24 208-277 5-25 1 SPST 20A 2 HP 20A  1200W 1110VA 1
RIBME2401P 24 120 5-25 1 DPDT 20A 3 HP 20A   1640VA 1
RIBME2402P 24 208-277 5-25 1 DPDT 20A 3 HP 20A   1640VA  
                                            Return to Homepage                                                    Contact Us
Send mail to amberb@telcoenvirotrols.com with questions or comments about this web site.
Last modified: 05/07/08