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  • PulseWorx TPR-120 Three-Phase Repeater — Specifications

    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.

    Full text manual (for reference)

    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.

    Overview

    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.

    Features

    • Improved communication — automatic repetition of all multi-packet messaging across the three-phase network
    • Adjustable receive sensitivity — adjustable from LOW to HIGH to filter out powerline noise
    • Simple installation — installs in a standard 3-gang junction box or suitable enclosure near the main electrical panel
    • Feedback — blue/red status LED for each phase of the powerline
    • Perfect for retrofit — transmits over existing power wiring, no new hard wiring needed
    • UPStart configurable — add to network, run communication tests, print reports, adjust sensitivity
    • 5-year limited warranty

    Installation Notes

    • Works best installed as close to the main circuit breaker panel as possible
    • Must be installed by a qualified electrician only
    • Turn off the main breaker before installation
    • Install in a suitable junction box or equivalent enclosure
    • Follow all applicable codes and requirements, including the National Electrical Code (NEC)

    Wiring (as described in the manual)

    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.

    Specifications

    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

    Warranty

    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