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0102030405

CJ19-25 switching capactior contactor

C19 series switching capacitor contactors (hereinafter refered to as contactors) are mainly used inpower lines with AC 50Hz or 60Hz and rated working votage up to 400V, for the use of low-voltagereactive power compensalion equipment to input or remove low-voltage parallel capacitors. Thecontactor is equipped with a surge suppression device, which can effectively reduce the impact of closing surge on the capacilor and suppress overvoltage during opening and closing.

product details

Usage scenario

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Relevant certificates

Main technical indicators

Product model name	CJ19-25
Electrical life (10000 cycles)	10
Rated current le (380V) A	17
Controllable capacitor capacity (kvar):220V	6
Controllable capacitor capacity (kvar):380V	12
Rated insulation voltage (V)	500
Surge suppression capability	20le
Action conditions	Actuation:(85%~110%)Us ; Release:(20%~75%)Us
Coil power (VA) start/hold	70/8
Auxiliary contact control capacity	AC-15 360VA; DC-3 33W
Weight (kg)	0.44

Model Meaning

Working conditions

1.The ambient air temperature is -5℃~+40℃, and its average value within 24 hours does not exceed+35℃.

2.Atitude: not exceeding 2000m.

3.Atmospheric conditions: When the maximum temperature is+40℃, the relative humidity of the air doesnot exceed 50%; Higher relative humiditly can be allowed at lower temperatures, such as reaching 90%at 20'℃. Speclal measures should be taken for occasional condensation caused by temperature changes.

4.Installation conditions: The inclination between the installation surface and the vertical plane shall not exceed +5°C or -5°C.

5.Impact vibration: The product should be installed and used in a place without significant shaking, impact,and vibration.

Structural characteristics

The contactor is a direct acting double break point structure, and the contact system is arranged in two layers. The upper layer has three pairs of current limiting contacts and a current limiting resistor to form a surge suppression device, When it is closed, it is first connecled for a few miliseconds before the working contact is connected, The permanent magnetic block in the current limiting contact is released under the reaction of the spring, disconnecting the current limiting resistor and allowing the capacilor to work normally. The internal circuit connection diagram of the contactor (see figure).

The contactors of CJ19-25-43 have two pairs of auxiliary contacts, while the contactors of CJ19-63-95 have three pairs of auxilary contacts. The terminal of the contaclor is covered with an insulation cover.ensuring safety and reliability, The coil terminals are marked with voltage data to prevent incorrect connectians. The C19-25-43 contactor can be installed with screws or can be fastened onto a 35mm standard clamp rail using the slider at the bottom. There is a detachable rectangular white plague on the mask, which users can use to print project codes, etc. CJ19-63-95 can be installed wih 35mm or 75mm standard clamp rails.

Appearance and installation dimensions

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Power system: In substations and distribution networks, switching capacitor contactors are used to automatically or manually switch capacitors to adjust the power factor of the system, reduce reactive power, and improve energy utilization efficiency.

Industrial production: In large industrial equipment and production lines, switched capacitor contactors can be used to control the start and stop of motors, especially in situations where frequent start and stop are required.

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Lighting system: In large lighting systems, switched capacitor contactors can be used to control lighting loads, especially where brightness adjustment or switching is required.

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Motor control: During the starting and running process of the motor, the switched capacitor contactor can be used to provide additional starting current to help the motor start smoothly.

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