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RELAY OEM 3UA 690V-1000V 0.1-630A THERMAL OVERLOAD RELAY

3UA series thermal overload relay are suitable for overload and phase-failure protection of AC motors with frequency of 50/60Hz,voltage up to 690-1000V ,current up to 0.1-630A under 8-hours duty or uninterrupted duty.


function:Functions provided by these relays, are phase-failure protection, temperature compensation, ON/OFF indication and manual/automatic reset.

Applicable Standards:National Standard: GB 14048, Intermational Standard: IEC 60947-4-1.

The relays can be mounted onto contactors or installed as single units.

Features:3UA series has the innovative, elegant model and small installation area, functions such as temperature compensation, action indication, automatic and manual reset, stop with steady and reliable performance.

Can be connected with a contactor or installed separately, Action Characteristics, Overload protection, Phase failure protection.

Welcome everyone to come to inquire

Operating Conditions

The altitude couldn’t exceed 2000m.

Ambient temperature: -5 "C~+55C and the average temperature no more than +35C in 24 hours.

Atmosphere: Comparative humidity no more than 50% at max +40 C, and it may be higher at a

lower temperature. The lowest average temperature no more than +20C in the wettest month.

The maximum average comparative humidity of this month couldn’t exceed 90%, The change of temperature leading to dew on the product must be considered.

Class of pollution: Class 3.

The slope between installation surface and vertical surface couldn’t exceed±5°

Keeping away from explosive, corrosive and electric atomy.

Keeping dry.

The product should be used and installed at certain place without any shock, vibration etc.

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