About the UR-TLB
The UR-TLB Low Voltage Universal Relay made for GE Vernova's UR Universal Relay Series comes with a series of Input and Output ratings that are important to adhere to. Some of these include its:
- 1 to 50000 A CT Rated AC Primary
- 1 A or 5 A by connection CT Rated AC Secondary
- 1000 W Dry Contact Input Maximum
- 100 mA DC at 48 V DC Control Power Output Capacity
- ±300 Vpk Control Power Output Maximum
- approx. 80 to 100 mA Threshold Current
It should be noted that the aforementioned Threshold Current rating pertains specifically to this unit's FORM-A Current Monitor.
UR-TLB Fiber Communication Losses
The below table identifies a number of the UR-TLB Relay's identifiable Fiber Losses:
| 820 nm multimode |
3 dB/km |
| 1300 nm multimode |
1 dB/km |
| 1300 nm singlemode |
0.35 dB/km |
| 1550 nm singlemode |
0.25 dB/km |
| Splice losses |
One splice every 2 km, at 0.05 dB loss per splice |
The shielded twisted-pair interface options for this unit include the RS422 and the G.703 interfaces.