NORIS RP42 TEMPERATURE LIMIT SWITCH 24VDC PT100 INPUT 0-150 C FAST SHIP

The NORIS RP42 is a high-precision electronic temperature limit switch designed for industrial monitoring and control applications. Configured for a PT100 input and a fixed range of 0 to 150°C, this 24VDC unit provides reliable threshold-based switching to protect engines, generators, compressors, and HVAC systems from overtemperature conditions.

Manufactured by NORIS Automation (part of the Noris Group), the RP42 series combines compact DIN-rail mounting with robust EMC protection, making it suitable for harsh environments including marine, railway, and stationary power generation.

Key Features

• PT100 Direct Input – Accepts 2- or 3-wire PT100 sensors (DIN EN 60751).
• Fixed Temperature Range – 0°C to +150°C, ideal for cooling water, lube oil, or air temperature monitoring.
• 24 VDC Supply – Low-voltage operation compatible with industrial control systems (e.g., PLCs, relays).
• 1 Changeover Relay Output – Normally open (NO) / normally closed (NC) configurable limit switch.
• Adjustable Switching Point – Set via potentiometer (front accessible).
• Adjustable Hysteresis – Prevents relay chatter near setpoint.
• LED Status Indication – Green (power) + Red (limit reached/alarm).
• DIN Rail Mounting – EN 60715 standard (35 mm rail).
• High Noise Immunity – Meets EN 61000-6-2 / EN 61000-6-4.
• Wide Ambient Temp – -25°C to +70°C operating range.

Technical Specifications

Applications

• Engine monitoring – Coolant and lube oil over-temperature shutdown.
• Generator sets – Winding or bearing temperature limits.
• Compressors – Discharge air temperature supervision.
• HVAC systems – Heater or chiller limit control.
• Marine & offshore – Class-approved temperature switching.
• Railway vehicles – Traction converter cooling loops.