Contrel RI-R46 Insulation monitoring device Owner's Manual

Contrel RI-R46 Insulation monitoring device is designed for monitoring the insulation of IT systems up to 440 VAC. It features a DC component measure signal to control the insulation resistance by detecting leakage current. The device has green, yellow, and red LED indicators for power, pre-alarm, and relay tripping, respectively. It also has TEST and RESET buttons on the front. The alarm and trip thresholds can be adjusted by microswitches, and it offers both automatic and manual reset options. Two changeover relays are available for remote reporting of alarm and low insulation signals. The relays can be set to positive safety for reliable monitoring even in the absence of auxiliary voltage.

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RI-R46 Insulation monitoring device manual | Manualzz

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Key Features

  • Monitors insulation up to 440 VAC
  • DC component measure signal
  • LED indicators
  • TEST & RESET buttons
  • Adjustable thresholds
  • Automatic & manual reset
  • Two changeover relays
  • Positive safety feature

Frequently Answers and Questions

How do I reset the RI-R46 after a trip?

You can reset the device manually by pressing the RESET button on the front or, if configured for automatic reset, it will reset automatically when the low insulation condition ceases.

What are the different LED indicators on the RI-R46?

There are three LED indicators: a green LED for power (ON), a yellow LED for pre-alarm (ALARM), and a red LED for relay tripping (TRIP).

How do I adjust the alarm and trip thresholds?

The alarm and trip thresholds can be adjusted using the microswitches on the device. Refer to the manual for specific instructions on setting the thresholds.
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