NTRT51 Series Thermal Relay-Natus (Changzhou) Electric Systems Co., Ltd

Manufacture

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NTRT51series thermal overload relays are used in circuits with AC 50Hz/60Hz, voltage up to 660V, current up to 80A and below, For AC motor overload and phase failure protection. And there are differential mechanism, temperature compensation and tripping indication, which can communicate with 6NTR contactorIt can also be installed independently. This product complies with GB14048.4, IEC60947-4 standard.

Normal operating and installation conditions:

Altitude: no more than 2000m.
The ambient air temperature is -5℃~+40℃, and the average temperature within 24h does not exceed ±35℃.
Atmospheric conditions: The relative humidity of the atmosphere does not exceed 50% at +40°C, and the relative humidity can be higher at lower temperatures. The wettest month.
The monthly average minimum temperature does not exceed +25°C, the average maximum relative humidity for the month does not exceed 90%, and the production period due to temperature changes is considered.
Condensation on the product.
The inclination between the installation surface and the vertical surface shall not exceed ±5°C.
In a non-explosive hazard medium, and there is no gas and conductive dust that is enough to corrode metals and destroy insulation in the medium.
In places with rain and snow protection and not full of water vapor.
In a place free from significant shaking, shock and vibration.
The pollution level is 3.

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