CJT1 AC contactor (ZNFO Traditional series)

This series of AC contactor is mainly used in the electric power systems with the frequency of AC 50Hz, the rated working voltage of up to 690v.and the rated working current of up to 150A under 380V and of up to 100A under 690V under the use category of AC-3 for remotely connecting and breaking circuits and frequently starting and controlling AC motors.It can work with the appropriate thermal overload relay or electronic protection device to form the electromagnetic starter to protect the circuits that may be overloaded.Executive standards:GB/T14048.4-2020 and 1EC60947-4-1.etc.

advantage

All products of the company can be customized for production according to user usage scenarios.

product details

Type and meaning

Normal working conditions and installation conditions

The altitude of the installation site should not exceed 2000m;

The ambient air temperature should not be higher than +40℃ and not be lower than -5℃.

When the highest temperature is +40℃, the relative humidity of the air on the installation site should not be higher than 50%: A higher relative humidity is allowed at a lower temperature.: in the wettest month,the monthly average minimum temperature should not exceed +20℃, and the average maximum relative humidity should not exceed 90%,.Measures should be taken for condensation on the product due to temperature change;

The inclination between the installation surface and the vertical plane should not exceed ± 5°.

Pollution level: level 3;

The product should be installed in a place without obvious shaking, impact and yibration.

Structural features of the product

CJT1 series AC contactor (hereinafter referred to as the contactor) is a new CJ10 product which is improved and designed on the basis of the original CJl0 series AC contactor.It can replace the obsolete CJ10 series AC contactor. With same outline and installation dimension as the original CJ10 system, the contactor has the greatly improved contact and arc extinguishing system so that its highest rated working voltage is increased from 380V to 690v; it has a DMC plastic arc extinguishing chamber replacing the clay one and is provided with the arc extinguishing piece;it is provided a improved contact structure, which improves the arc extinguishing performance, prolongs the contact life,reduces the flash over distance and the product weight and eliminates the problem that the clay chamber is damaged easily.

Main parameters and technical performance

For the basic parameters of the main circuit of the contactor, please refer to Table 1.

The sucking coil of the contactor can work normally within the range of85% ~ 110% of its rated control power supply voltage Us.

Product type	CJT1-10	CJT1-20	CJT1-40	CJT1-60	CJT1-100	CJT1-150
Rated insulation voltage and working voltage V	380V
Rated working current(AC-1-AC-4,380V)	10	20	40	60	100	150
Control power kw	2.2	5.8	11	17	28	43
Control power kw	4	10	20	30	50	75
Number of operating cycles per hour times/h	AC-1.AC- is 600.AC-2, AC-4 is 300, CJT1-150AC-4 is 120
Electrical endurance 10,000 times	60
Electrical endurance 10,000 times	2			1		0.6
Mechanical endurance 10,000 times	Normally open and normally closed 300
Auxiliary contact	2 Normally Open 2 Normally Closed AC - 150180VA:DC - 1360W Ith:5A
Matched fuse	RT16-20	RT16-50	RT16-80	RT16-160	RT16-250	RT16-315
Coil power consumption vA	65	140	230	485	760	950
Coil power consumption vA	11	22	32	95	105	110