FAQ

You’ve got a question, you say? Well let’s see if we can answer it. Scroll down to read frequently asked questions, or use the searchbox to filter by keyword. If you don’t see your question, feel free to contact us directly.

  1. How do I connect to an RIBU1C?
  2. Why is the black wire labels as “COM” on the primary side of your transformers?
  3. How do I use your dry-contact input RIB relay as a conventional (coil activated) RIB relay?
  4. What’s the difference between an ESR2401B and an RIB2401B?
  5. What contactors do you manufacture?
  6. How do I connect RIB01BDC?
  7. What is the difference between RIBXGHTA and RIBXGTA?
  8. How do I interlock loads using current sensor and a RIB relay?
  9. How do I interlock loads with a transformer, current sensor, and a RIB relay?
  10. Can my RIB relay be used outside?
  11. How do I find my local distributor? Can I buy direct from FDI?
  12. How do I get pricing on your products?
  13. How can I select a relay based on coil voltage and contact ratings?
  14. Do I need to apply power to RIBXGTA?
  15. What is the maximum ambient temperature allowed for your RIB relay to operate?
  16. Do your transformers have grounded secondaries?
  17. What is the policy for your one-year warranty?
  18. What time does your last shipping order go out?

How do I connect to an RIBU1C?

We're glad you asked. Take a look at this helpful chart:


Why is the black wire labels as “COM” on the primary side of your transformers?

The black wire on the primary side of the transformers is labeled "COM" because it is the common to all of the voltage inputs available in a transformer with a multi-input primary. It does not mean "neutral" or "ground".


How do I use your dry-contact input RIB relay as a conventional (coil activated) RIB relay?


What’s the difference between an ESR2401B and an RIB2401B?

The RIB2401B is listed for use under UL916 (Energy Management Equipment) and UL864 (Control units and Accessories for Fire Alarm Systems). The ESR2401B is listed for use under UL924 (Emergency Lighting and Power Equipment).


What contactors do you manufacture?

We no longer manufacture contactors.


How do I connect RIB01BDC?


What is the difference between RIBXGHTA and RIBXGTA?

Both units have SPST contacts that are activated when the load line current exceeds the current sensors threshold. However, the RIBXGH series contacts are meant to pass 120Vac at 1 Amp (maximum); while the RIBXG series contacts can be used as a dry-contact output, or can pass up to 30Vac/dc at 0.4 Amps (maximum).


How do I interlock loads using current sensor and a RIB relay?


How do I interlock loads with a transformer, current sensor, and a RIB relay?


Can my RIB relay be used outside?

Our self-enclosed RIB relays can be used outside as long as they are housed in a NEMA 4 or NEMA 4X rated enclosure. A few of our models (RIBU1C, RIB2421C, RIB2401D, RIB2402D) are available in a NEMA 4X housing (add "-N4" to the end of the model name.)


How do I find my local distributor? Can I buy direct from FDI?

You may contact us at 800-888-5538 to find out about distributors in your area, or click here to use our interactive map.


How do I get pricing on your products?

Give us a call at 800-888-5538 and ask for our Sales Department. They can provide you with pricing and availability, as well as a list of your local distributors.


How can I select a relay based on coil voltage and contact ratings?

Try the RIB Product Selection Guide on our website. Or, give us a call at 800-888-5538 (yes that's three answers in a row that basically say to call us ... what's can we say? We like talking to you!) and ask for a Technical Support Specialist.


Do I need to apply power to RIBXGTA?

No, the RIBXGTA does not need an external power supply. It uses the current flowing through the monitored load line to derive its power.


What is the maximum ambient temperature allowed for your RIB relay to operate?

Most of our RIB products are rated for operation from -30° F to +140° F. Please check the individual cut sheet for the model of interest.


Do your transformers have grounded secondaries?

No, our transformer secondaries are ungrounded, isolated outputs.


What is the policy for your one-year warranty?

Our one-year warranty policy is available on our Downloads page. However, we've prepared a direct download link, just for you. Because we care.


What time does your last shipping order go out?

We send out our last shipping order at 4:00 PM Eastern time.