Functions and Uses
The CKJ11 series AC vacuum contactor (hereinafter referred to as the contactor) is mainly used in the photovoltaic and wind power industries for the remote connection and disconnection of circuits. It can also be used in mines, smelting, textile, construction and other places for remote connection and disconnection and frequent start control of AC motors. It complies with the standard: JB/T7122.
Detailed Parameters
| Parameter Category | Parameter Item | Parameter Value |
|---|
| Contactors Model | CKJ11-125 |
| | CKJ11-160 |
| | CKJ11-250 |
| | CKJ11-400 |
| | CKJ11-500 |
| | CKJ11-630 |
| Figure Legend | | |
| Rated Free Air Heating Current Ith(A) | 125 |
| | 160 |
| | 250 |
| | 400 |
| | 500 |
| | 630 |
| Rated Insulation Voltage Ui(V) | 1500 |
| Rated Impulse Withstand Voltage Uimp(kV) | 10 |
| Rated Limited Short Circuit Current (kA) | 50 |
| Phase Impedance Z(Ω) | ≤ 5.0×10³ |
| Rated Closing Capacity | Closing Current: 10×le(AC-3) |
| Rated Breaking Capacity | Breaking Current: 8×le(AC-3) |
| Rated Working Current le(A) | 1500 |
| | 160 |
| | 250 |
| | 400 |
| | 500 |
| | 630 |
| AC-3 Electrical Life (times in ten thousand) | 100 |
| Mechanical Life (times in ten thousand) | 300 |
| Operating Frequency (times/hour) | 600 |
| | 300 |
| | 120 |
| SCPD Compatible Fuse | RT36-00 160A |
| | RT36-1 250A |
| | RT36-2 2400A |
| | RT36-3 500A |
| | RT36-3 630A |
| | RT36-3 800A |
| Corresponding Thermal Overload Relay | NXR-200 |
| | NXR-200 |
| | NXR-630 |
| | NXR-630 |
| | NXR-630 |
| Arc Distance (mm) | 0 |
| Basic Parameters of Auxiliary Contacts | AC-15: 380V 0.95A, DC-13: 220V 0.15A, Ui: 660V, Ith: 10A |
| Number of Auxiliary Contacts | Three Normally Open Two Normally Closed |
| | Four Normally Open Two Normally Closed |
| | Four Normally Open Three Normally Closed |
| Electromagnetic System Capability | Coil Control Power Supply (V) | AC 50Hz~60Hz/DC: 36, 110, 220, 380 |
| Operating Range | Engagement
Cold State: (70%~115%) Us
Release
(20%~60%) Us |
| Coil Holding Power (VA) | Start
80.5
80.5
192.1
237.2
335.5
335.5
Hold
5.7
5.7
10.1
11.8
20.0
20.0 |
| Wiring Capability | Main Circuit Wiring | Number of Wires
1-2
Cross-sectional Area (mm²)
35~70
35~70
70~120
150~240
150~240
150~240
Size of Tightening Screw
M8
M8
M8
M10
M10
M10
Tightening Torque (N·m)
6
6
6
10
10
10 |
| Auxiliary Circuit Wiring | Number of Wires
1-2
Cross-sectional Area (mm²)
0.75~1.5
Size of Tightening Screw
M2.5
Tightening Torque (N·m)
0.4 |
| | 0.5 |
