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September 08, 2026 2 min read
Specification sheet for the PulseWorx TPR-120 Three-Phase Repeater, which bridges UPB communication across a three-phase electrical system.
Specification sheet for the PulseWorx TPR-120 Three-Phase Repeater — a device that bridges UPB™ powerline communication across the three phases of a 120/208V Delta-Wye electrical system.
UPB communication was originally designed for single-phase powerlines; signals don't directly jump across all three phases of a 120/208V system. The TPR-120 solves this by taking any UPB multi-packet transmitted on one phase and repositioning and repeating it properly onto all three phases of the powerline — bridging the communication gap in multi-dwelling units, apartments, condominiums, and light commercial office or restaurant facilities.
Installation is simple: connect the TPR to a standard 3-phase circuit breaker. It's added to a UPB network using UPStart Setup Software, which also enables running communication tests and adjusting sensitivity.
In a three-phase electrical system, Neutral and the three phases (A, B, C) feed a 3-pole circuit breaker. From the breaker, White (Neutral), Black, Red, and Blue leads connect to the Three-Phase Repeater, which is installed near the circuit breaker panel and includes a Status LED and Program Button for setup.
| Model | TPR-120 |
| Dimensions | 5 11/16" x 2 1/2" x 1 9/16" (14.4 x 6.4 x 3.9 cm) |
| Power | 120/208VAC, 60Hz, Three Phase Delta-Wye |
| Weight | 9.8 oz. |
| Mounting | Standard 3-gang junction box or enclosure |
| Operating Temp | -40°F to 104°F |
| UPC Code | 811976011613 |
Five-year limited warranty.
Manufacturer: Powerline Control Systems, Inc., 19201 Parthenia St., Ste. J, Northridge, CA 91324 · Tel: 818.701.9831 · Fax: 818.701.1506 · www.pcslighting.com
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