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Siemens 3RN2000-1AW30 Thermistor Motor Protection Relay - Compact Evaluation Unit

Siemens 3RN2000-1AW30 Thermistor Motor Protection Relay

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ManufacturerSiemens

Part number3RN2000-1AW30

Enclosure 17.5 mm

Terminals Screw

Contacts 1 Change-over

Supply Voltage (Us) 24-240 V AC/DC

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Compact 17.5mm enclosure Screw terminals Auto-reset function LED status indicator Suitable for bimetallic switches Wide voltage range 24-240V AC/DC

Product description

The Siemens 3RN2000-1AW30 is a compact thermistor motor protection relay designed for reliable motor temperature monitoring. It features a 17.5 mm enclosure, screw terminals, and a single change-over contact. The unit operates with a supply voltage (Us) of 24 V to 240 V AC/DC and includes an auto-reset function. It is suitable for use with bimetallic temperature switches and is equipped with one LED indicator for tripped status.

This relay is ideal for applications requiring precise motor temperature monitoring to prevent overheating and potential damage. It finds use in various industrial settings, including manufacturing plants, HVAC systems, and pump stations, where motor longevity and operational safety are critical.

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Technical specifications

Enclosure	17.5 mm
Terminals	Screw
Contacts	1 Change-over
Supply Voltage (Us)	24-240 V AC/DC
Reset	Auto RESET
Indicator	1 LED (tripped)
Compatibility	Bimetallic temperature switches

Common applications

Motor protection

Industrial automation

HVAC systems

Pump stations

Manufacturing

Control panels

Compatible systems

Bimetallic temperature switches PTC sensors

Also known as

3RN2000-1AW30 Siemens Relay Siemens Motor Temperature Monitor

Replaces / compatible with

This relay is designed as a direct replacement for older Siemens thermistor motor protection relays within the SIRIUS 3RN2 series, offering enhanced features and reliability.

Technical note

Expert tip

Ensure the bimetallic temperature switch or PTC sensor is correctly wired and integrated into the monitoring circuit for accurate motor temperature readings.

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Frequently asked questions

What is the supply voltage range for the Siemens 3RN2000-1AW30?

The Siemens 3RN2000-1AW30 thermistor motor protection relay operates with a supply voltage (Us) ranging from 24 V to 240 V AC or DC. This wide range makes it versatile for various power systems.