Product Highlights
The SPR-3E is engineered to deliver reliable, noise-free pulse isolation in outdoor and demanding environments. Input filtering circuitry rejects pulses shorter than 18 ms to prevent false triggering, and built-in MOV transient protection on the solid state relay contacts eliminates the need for external suppression components. Each “K” output lead is individually fused at 1/10 amp to protect against excessive current and wiring errors. Bright red and green LED indicators provide real-time system status at a glance, eliminating the need for additional test equipment in the field.
The SPR-3E’s tough polycarbonate NEMA 4X enclosure — measuring approximately 10″ W × 11″ H × 3.51″ D — provides ample wiring room for field terminations and excellent electrical insulation. The “Euro” style terminal strip keeps all conductive parts recessed when wiring is correctly installed, protecting personnel from accidental electrical shock. An internal acrylic cover encloses all powered components for an additional layer of protection in the field.
Features
- Three sets of isolated solid state Form C (K, Y & Z) dry contacts from a single field-selectable Form A or C input
- NEMA 4X polycarbonate enclosure for complete weatherproof outdoor operation
- Switch-selectable Form A or Form C input with no additional hardware required
- Input noise filtering rejects pulses shorter than 18 ms to eliminate false triggers
- Solid state contacts rated at 125 VAC/VDC at 100 mA with a maximum power rating of 800 mW
- Built-in MOV transient protection on solid state relay contacts
- Fused "K" output leads (1/10 amp, 3AG) on each output channel
- 2,500Vrms input/output isolation voltage
- Red and green LED status indicators for at-a-glance system monitoring
- "Euro" style terminal strip with no exposed conductive parts when wiring is properly installed
- Spacious interior (8" W × 9" H × 2" D) for easy field wiring and termination
- Operating temperature range of -38°C to +70°C (-38.4°F to +158°F)
- Available with 125 VDC input using the DCS-1 Power Supply; contact factory for other input voltage options
Weatherproof Triple Output Isolation Relay
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