Noris RH41M Power Supply 18–36V DC Temperature Switching Relay / Control Module

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The Noris RH41M is an industrial electronic temperature switching and control module manufactured by NORIS Automation GmbH (Nürnberg, Germany). This unit is designed for use in marine, industrial, and automation systems, where reliable temperature monitoring and switching is required.

The module operates on a wide DC supply voltage range from 18 to 36 VDC, making it suitable for shipboard and industrial DC power systems. It features an adjustable switching temperature range from 40°C to 120°C, allowing precise control of temperature-dependent processes such as engine monitoring, cooling systems, heaters, or safety shutdown circuits.

The RH41M provides a relay output rated at 30 VDC / 1 A, enabling direct switching of control circuits or signaling to PLCs, alarms, or automation systems. The device is designed for operation in harsh environments, with an ambient temperature range from −25°C to +70°C, and carries CE and GL (Germanischer Lloyd) approvals, confirming its suitability for marine and shipboard applications.

This unit is commonly used in:

• Marine and ship automation systems

• Engine room temperature monitoring

• Industrial control panels

• Safety and alarm circuits

Ideal as a replacement unit, OEM spare part, or for refurbishment of existing Noris automation systems.

Key Technical Specifications Manufacturer: NORIS Automation GmbH (Germany)

• Type / Model: RH41M

• Function: Temperature switching / control module

• Switching Range: 40…120 °C

• Supply Voltage: 18…36 V DC

• Ambient Temperature: −25…+70 °C

• Contact Rating: 30 V DC, 1 A

• Approvals: CE, GL (Germanischer Lloyd)