Pulse Isolation Relay

RPR-3PS

The SSI RPR-3PS is a triple-output pulse isolation relay that provides three isolated solid state Form C (KYZ) contacts from a single Form C input. It supplies its own sense voltage to the pulse sending unit, delivering a self-contained interface solution for utility metering and energy management systems.

Designed for reliable operation in demanding field environments, the RPR-3PS filters noise and transients at its input to prevent false pulses at any of its three outputs. Its rugged polycarbonate enclosure and solid state construction make it well suited for metering, SCADA, and demand recording applications.

The RPR-2PS pulse isolation relay on a white background.

Product Highlights

The RPR-3PS is the ideal solution when a single metering pulse needs to be distributed to three separate systems simultaneously — such as a SCADA interface, a demand recorder, and a customer energy management system all fed from one utility meter. Its solid state switching devices are rated at 800V and 750mA, and built-in transient protection removes the need for any external suppression components, simplifying installation and long-term maintenance.

Monitoring and wiring are made straightforward with the RPR-3PS. Red and green LED indicators provide continuous at-a-glance system status, while a “Euro” type terminal strip ensures clean, well-insulated connections across all input and output circuits. Fused “K” output leads on each channel protect the relay against overcurrent and common wiring errors, ensuring reliable performance under real-world conditions.

Features

The RPR-3PS is built to distribute a single metering pulse signal to three independent systems with precision and protection:
  • Three isolated solid state Form C (KYZ) outputs from a single Form C input
  • Self-supplied sense voltage for the pulse sending unit
  • Input noise and transient filtering to eliminate false pulses
  • Solid state switch rated at 800V / 750mA with built-in transient protection
  • Fused "K" output leads (½ amp, 3AG) for overcurrent protection
  • 2,500Vrms input/output isolation voltage
  • Red and green LED status indicators
  • Available in 24 VAC/VDC and 125 VDC input voltage options
The RPR-2PS pulse isolation relay

Triple-Output Isolated Pulse Relay

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