PR 3202 Pulse Isolator / Switch Amplifier

The PR 3202 Pulse Isolator / Switch Amplifier is a rugged, high-performance industrial signal interface that's ideal for reliably conditioning and isolating pulse and switch signals from field sensors to control systems. Perfect for use with NAMUR sensors, NPN open-collector inputs, and mechanical contacts, the 3202, from PR electronics, delivers clean, noise-free signals with superior 4-port galvanic isolation (2.5 kVAC) to eliminate ground loops, suppress transients, and protect sensitive PLCs or DCS inputs.

• Interfaces a NAMUR sensor to typical control system input cards.
• High 4-port isolation provides surge suppression that protects the control system from transients and noise as well as eliminates ground loops.
• Provides simple splitter function: 1 in – 2 out.
• Monitor signal source for cable short-circuit or cable break with alarm function on secondary output, power rail, and LED status.
• The device can mount in safe areas or in Zone 2 / Division 2 hazardous areas.
• All terminals feature protection from over-voltage, polarity, and short-circuit.

PR 3202 Pulse Isolator / Switch Amplifier from PR electronics

With flexible output options, including two relay outputs or high-speed NPN transistor outputs, the versatile PR 3202 pulse isolator / switch amplifier supports pulse splitting (1 input to 2 outputs) and enables precise system integration across industrial automation applications. Built-in Line Fault Detection (LFD) and cable break monitoring with visual LED status and alarm signals help detect wiring issues early, improving uptime and reducing troubleshooting time.

• Output options: NPN transistor or mechanical relay.
• Response time: Relay < 20 ms / NPN < 0.1 ms.
• Collective DIN-rail alarm.
• Line Fault Detection (LFD) / cable break detection.
• Wide ambient temperature range -13 to 158˚F (-25 to 70˚C).
• NAMUR NE21, NE44.
• Conforms to IEC 60947 standard - switch amplifiers for NAMUR sensors.

Easy Mounting, Installation, and Programming

Able to withstand harsh environments, the 3202 supports a wide ambient temperature range -13 to 158˚F (-25 to 70˚C) and is suitable for both safe areas and hazardous Zone 2 / Division 2 installations. All terminals incorporate over-voltage, polarity, and short-circuit protection for enhanced durability. Easy configuration via DIP switches and a slim 6.1 mm DIN-rail housing that allows high-density mounting make the PR 3202 pulse isolator / switch amplifier a compact, yet powerful choice for industrial signal isolation and switching.

• Easy configuration via DIP-switches.
• Units can mount side by side, horizontally, and vertically, without air gap on a standard DIN rail, even at 158˚F (70˚C) ambient temperature.
• Units can be supplied separately or installed on PR 9400 power rail.
• The narrow 6.1 mm housing allows up to 163 units per meter.