RPR-2LS Pulse Isolation Relay
B Series
The RPR-2LS pulse isolation relay provides an isolated “dry” solid-state Form C (K, Y, & Z) contact from a Form C input. The RPR-2LS uses the line voltage at the meter as the wetting voltage for the sending unit, usually an electric meter’s KYZ pulse initiator. No additional power supply other than the local line voltage is needed.
Typical applications include interfaces between utility metering devices and customer-owned energy control systems, demand recorders, or supervisory control systems (SCADA) interfaces.
The RPR-2LS relay is designed to filter noise and transients from its input to prevent false pulses at its output. Bright red and green LED lamps indicate the system’s status at all times thus allowing a rapid visual check of the system’s performance without requiring any additional test equipment.
The RPR-2LS’ input and output circuit’s terminal strip connector is a “EURO” type providing excellent insulation. The “K” lead of the RPR-2LS’ output is fused to prevent damage to the relay under almost any conditions a user might cause such as excessive current, incorrect wiring, etc. The RPR-2LS’ robust solid-state switching device is rated at 800V and 750mA giving maximum protection from lightning or transient voltage damage. Its built-in transient protection for the solid-state switch contact eliminates the need for external or off-board transient suppression devices. All component parts that have power applied to them, with the exception of the input/output terminal strip are enclosed in a polycarbonate cover for maximum protection. The mounting base plate is also made of polycarbonate and offers excellent electrical insulation between the circuit and the mounting surface.
Specifications
| Electrical | |
|---|---|
| Power Input: | 90 to 300 VAC. Burden: 10 mA at 120 VAC |
| Pulse Input: | One Form C (3-Wire) input on the Y & Z input terminals |
| Pulse Output: | One set of Form C dry contacts (K, Y & Z) for energy pulses. The solid state “no bounce” relay contacts are rated at 250 VAC/VDC @ 1/2 Amp. The maximum rating of the contacts is 100 VA. Factory fused at 1/2 amp. (3AG) |
| Contact On-State Resistance: | 2.3 ohms maximum, 1.7 ohms typical |
| Insulation Resistance: | 50 megohms typical |
| Operate and Release Time: | Turn On Time - 8 mS typical; 20 mS MAX Turn Off Time - 1 mS typical; 5 mS MAX |
| Input/Output Isolation Voltage: | 2500Vrms |
| Mechanical | |
|---|---|
| Mounting: | Any position |
| Size: | 3.27” wide, 5.65” high, 1.50” deep |
| Weight: | 12 ounces |
| Temperature | |
|---|---|
| Temperature Range: | -38º C to +70º C, -38.4º F to +158º F |
| Humidity: | 0 to 98% non-condensing |
All specifications are subject to change without notice.
