AC PRO TRIP PROGRAMMER

The AC-PRO II is the latest design

URC Trip Units

URC trip units retrofit conversion kits replace legacy electromechanical series overload trip devices, thermal magnetic over current releases, and vintage style electronic trip devices.

55% smaller than the original AC-PRO and has the standard trip unit functions of Long-Time, Short-Time, Instantaneous and Ground Fault.

Advantages

Provides greater accuracy, reliability, functionality and provides life extension of older circuit breakers at a more cost effective solution versus purchasing a new circuit breaker and modifying the switchgear.

The AC-PRO II is the latest design

URC Trip Units

URC trip units retrofit conversion kits replace legacy electromechanical series overload trip devices, thermal magnetic over current releases, and vintage style electronic trip devices.

55% smaller than the original AC-PRO and has the standard trip unit functions of Long-Time, Short-Time, Instantaneous and Ground Fault.

Advantages

Provides greater accuracy, reliability, functionality and provides life extension of older circuit breakers at a more cost effective solution versus purchasing a new circuit breaker and modifying the switchgear.

Features

  • Neutral Overload
  • Under-voltage alarm/trip*
  • Over-voltage alarm/trip*
  • Time stamping of events
  • Ground Fault Alarm
  • Test Mode
  • Communications
  • Patented Sluggish Breaker detection
  • Wave form capture
  • Configurable alarm relay
  • Phase Loss/Reverse Phase Alarm/Trip*
  • Protects Against Single-Phasing

To ensure the reliability that the AC-PRO-II will function when needed, it was tested to the ANSI C.37.59 Standards for fault interruption. As a result of this testing the AC-PRO-II is UL listed on a variety of breakers.
The AC-PRO-II® was tested & is certified to withstand radio frequency interference per the ANSI C37.90.2 Standard

The CTs, Actuators and wiring harness from the original AC-PRO® can be used with the AC-PRO-II®. This makes upgrading the trip unit very simple and fast.

RS485 Modbus RTU communications is standard on every AC-PRO-II®. The AC-PRO-II® can be integrated into various industry standard HMI systems that have a Modbus RTU driver.

The front mounted and electrically isolated USB port allows for easy downloading of trip data and protection settings. It can also be used to upload the trip unit settings, making commissioning the trip unit much faster.

NOTE: If the AC-PRO-II® is located behind a cubicle door, a USB panel mount extension will be provided with the retrofit kit.

Settings are programmed using the OLED multi-line display and smart buttons that change their function according to the information displayed. All of the settings are entered using simple parameters. No percentages or multipliers are required.

The easy to read multi-line display provides real time monitoring of 3-phase, neutral and ground fault currents. The display unit can be rotated to allow the trip unit to fit in a variety of different breaker configurations.

The AC-PRO-II® is user configurable for 50Hz or 60Hz applications.

The green LED indicates that the trip unit is operating properly. The “Self-Test OK” feature performs the following:

  • Continuously monitors the trip unit
  • Verifies that the actuator is connected
  • Monitors the software routines
  • Monitors the micro-controller
  • Conformal coated circuit boards
  • Contamination resistant membrane
  • All metal nickel plated enclosure

All AC-PRO-II®’s come with a 2-year limited warranty.

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