Quad Pulse Isolation Relay

RPR-24PS

The SSI RPR-24PS is a quad-output pulse isolation relay that provides four isolated solid state Form C (KYZ) contacts from two Form A or C inputs. Each input channel supplies its own sense voltage to the connected pulse sending unit, offering a flexible and self-contained solution for multi-point metering distribution.

Built for utility-grade reliability, the RPR-24PS filters noise and transients on each input to prevent false pulses across all four outputs. Its versatile output mapping and robust solid state construction make it an excellent fit for metering, SCADA, and demand recording applications where multiple downstream systems must be served from two pulse sources.

The RPR-24PS Quad Pulse Isolation Relay on a white background.

Product Highlights

The RPR-24PS stands out with its flexible output mapping capability — each of the four outputs can be independently assigned to either input, giving installers precise control over how pulse signals are routed to downstream systems. This makes the RPR-24PS especially well suited for complex metering setups where KWh and KVARh pulses from a single meter need to reach multiple energy management, demand recording, or SCADA devices simultaneously.

Protection and serviceability are built into every aspect of the design. Solid state switches rated at 800V and 750mA, paired with built-in transient suppression, protect each channel from lightning and voltage spikes without the need for external components. Fused “K” output leads on all four channels, combined with continuous LED status indicators and a “Euro” type terminal strip, ensure the unit is easy to monitor, wire, and maintain in the field.

Features

The RPR-24PS is engineered to route and isolate pulse signals from two metering inputs across four independently mapped outputs:
  • Four isolated solid state Form C (KYZ) outputs from two Form A or C inputs
  • Each output independently mappable to either input
  • Self-supplied sense voltage on each input channel
  • 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) on each channel
  • 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-24PS Quad Pulse Isolation Relay

Quad-Output Dual-Input Pulse Relay

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