CKJ20-250 CKJ20-400 CKJ20-630 CKJ20-800 AC Vacuum Contactor

• Electricity Type: AC
• Number of Pole: 3
• Phase: 3
• Main Circuit Rating Voltage: 2000A, 1140V
• Main Circuit Rating Current: 250A, 400A, 630A, 800A
• Type: Ac Contactors
• Model NO.: CKJ20
• Executive Standard: IEC60947-4-1
• Mode: Vacuum
• Application 1: Break or close the circuit remotely
• Application 2: Start or control AC motor
• Transport Package: Carton/Wooden
• Specification: 63A, 80A, 125A, 160A, 250A, 400A, 630A, 800A
• Trademark: OEM
• Origin: China
• HS Code: 8535900090
• Production Capacity: 200000

Product Description

General Introduction

CKJ20 series of AC low voltage vacuum contactor is used in the circuit with frequency of 50Hz (or 60Hz), with rated voltage is up to 1140V and 2000V and with rated current from 250A to 800A, for long-distance making and breaking circuit and frequently start or control AC motors, and can also be equipped with the appropriate thermal overload relay for the purpose of protecting potential  overload  circuit.

Product Description

Main Technical Parameters:

CKJ20-250 and CKJ20-400

Model	CKJ20-250	CKJ20-400
Rated Voltage (V) (Main Circuit)	2000	2000
Rated Current (A) (Main Circuit)	250	400
Making Capacity (A/100 Times) (Main Circuit)	2500	4000
Making-Breaking Ca[acity (A/25 Times) (Main Circuit)	2000	3200
Ultimate Breaking Capacity (A/3 Times)	3200	4000
Electrical Life for AC3 (10000 Times)	600000	600000
Electrical Life for AC4 (10000 Times)	60000	60000
Mechanical Life (10000 Times)	1000000	1000000
Rated Operating Frequency for AC3 (Times Per Hour)	600	600
Rated Operating Frequency for AC4 (Times Per Hour)	120	120
Short Time Operating Frequency  (Times Per Hour, 20s)	2000	2000
Clearance Between Open Contacts (mm)	3±0.5	3±0.5
Overtravel (mm)	≥1	≥1

CKJ20-630 and CKJ20-800

Model	CKJ20-630/1140	CKJ20-800/1140
Rated Voltage (V) (Main Circuit)	1140	1140
Rated Current (A) (Main Circuit)	630	800
Making Capacity (A/10 Times) (Main Circuit)	6000	8000
Making-Breaking Ca[acity (A/10 Times) (Main Circuit)	4800	6400
Ultimate Breaking Capacity (A/3 Times)	6000	7500
Electrical Life for AC3 (10000 Times)	90
Electrical Life for AC4 (10000 Times)	6
Mechanical Life (10000 Times)	300
Rated Operating Frequency for AC3 (Times Per Hour)	600
Rated Operating Frequency for AC4 (Times Per Hour)	120
Short Time Operating Frequency  (Times Per Hour, 20s)	2000
Terminate Pressure (N)	200  20	250  20
Clearance Between Open Contacts (mm)	≥2.5
Overtravel (mm)	≥1
Weight (KG)	15	17

 

 

Detailed Photos