Overview and applications

1.Three-phase bimetallic strip design

2.Phase failure protection mechanism

3.Integrated tripping mechanism

4.Built-in testing function

Application

CQX1 series thermal overload relay are suitable for overload and?phase-failure protection of AC motors with frequency of 50/60Hz,voltage up to 690V, current up to 0.1-93A under 8-hours duty or uninterrupted duty.

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

International Standard:IEC 60947-4-1

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

Normal working conditions and installation conditions

◆Altitude: no more than 2000m

◆The ambient air temperature is -5°C~+40°C, and the average temperature within 24 hours does not exceed +35°C.

◆Atmospheric conditions: At +40°C, the relative humidity of?the atmosphere does not exceed 50%, at lower temperatures, there can?be a higher relative humidity, the monthly average minimum temperature of the wettest month does not exceed +25°C, the?monthly average relative humidity also the maximum relative humidity is not more than 90%6, and the condensation on the?product due to temperature changes is considered.

◆The pollution level is level 3.

◆The inclination of the mounting surface to the vertical surface does not exceed 5°.

◆In a non-explosive hazardous medium, there is no gas in the medium that is sufficient to corrode metals and destroy insulation?and where conductive dust exists.

◆In place where is no significant shaking, shock and vibration.

Selection and ordering data

Products appearance	Rated current(A)	Matched fuse specifications(A)		Matched contactor model
		aM	gG
	0.1~0.16	0.25	2	CQC5-09/CQC5-12/CQC5-18/CQC5-25
	0.16~0.25	0.5	2
	0.25~0.4	1	2
	0.4~0.63	1	2
	0.63~1	2	4
	1~1.6	2	4
	1.25~2	4	6
	1.6~2.5	4	6
	2.5~4	6	10
	4~6	8	16
	5.5~8	12	20
	7~10	12	20
	9~13	16	25
	12~18	20	35
	17~25	25	50
	23~32	40	63	CQC5-32/CQC5-38
	28~36	40	80
	23~32	40	63	CQC5-40/CQC5-50/CQC5-65/CQC5-80/CQC5-95
	30~40	40	100
	37~50	63	100
	48~65	63	100
	55~70	80	125
	63~80	80	125
	80~93	100	160

Apearance and installation dimensions