Function and Purpose
The NCX1 series dust-proof AC contactors are mainly used in power systems with an AC frequency of 50Hz, a rated insulation voltage of 690V, and a rated working voltage of 380V under the AC-3 usage category, with a rated working current up to 95A. They are used for remotely connecting and disconnecting circuits, and are suitable for controlling the start, stop, and reversal of AC motors. They can also be combined with appropriate thermal relays to form electromagnetic starters for protecting circuits that may experience overload.
Detail Description
Parameters:
Rated Working Current Ie: 9A~95A
Number of Poles: 3P
Working Ambient Temperature: -35℃～+70℃
Detail Parameters
| Parameter Category | Parameter Item | Parameter Value |
|---|
| Contactor Model | NCX1-9, 9/22, 9/22N | |
| NCX1-12, 12/22, 12/22N | |
| NCX1-18, 18/22, 18/22N | |
| NCX1-22, 22/22, 22/22N | |
| NCX1-25, 25/22, 25/22N | |
| NCX1-32, 32/22, 32/22N | |
| NCX1-38, 38/22, 38/22N | |
| NCX1-40 | |
| NCX1-50 | |
| NCX1-65 | |
| NCX1-80 | |
| NCX1-95 | |
| Legend | | |
| Frame Rating | 9-18 | |
| 22-38 | |
| 40-65 | |
| 80-95 | |
| Rated Free Air Heating Current Ith(A) | 25 | |
| 50 | |
| 70 | |
| 80 | |
| 125 | |
| Rated Insulation Voltage Uie(V) | 690 | |
| Rated Impulse Withstand Voltage Uimp(kV) | 8 | |
| Rated Limiting Short Circuit Current (kA) | 10 | |
| 50 | |
| 50 | |
| 50 | |
| 50 | |
| Impedance Z(Ω) | ≤ 5.0×10⁻⁴ | |
| Rated Making Capacity | Making Current: 10×le(AC-3) or 12×le(AC-4) | |
| Rated Breaking Capacity | Rated Working Current le(A) | |
| AC-3, 380V | 9 |
| AC-4, Interlock, 380V | 9 |
| AC-3, 660V | 6.6 |
| AC-4, Interlock, 660V | 6.6 |
| AC-3, 220V | 2.2 |
| AC-3, 380V | 4 |
| AC-3, 660V | 5.5 |
| AC-4, 380V | 3 |
| AC-4, 660V | 7.5 |
| AC-4, Interlock, 220V | 4 |
| AC-4, Interlock, 380V | 12 |
| AC-4, Interlock, 660V | 12 |
| AC-4, Interlock, 220V | 14 |
| AC-4, Interlock, 380V | 18 |
| AC-4, Interlock, 660V | 14 |
| AC-4, Interlock, 220V | 22 |
| AC-4, Interlock, 380V | 22 |
| AC-4, Interlock, 660V | 22 |
| AC-4, Interlock, 220V | 32 |
| AC-4, Interlock, 380V | 38 |
| AC-4, Interlock, 660V | 38 |
| AC-4, Interlock, 220V | 40 |
| AC-4, Interlock, 380V | 50 |
| AC-4, Interlock, 660V | 50 |
| AC-4, Interlock, 220V | 65 |
| AC-4, Interlock, 380V | 65 |
| AC-4, Interlock, 660V | 65 |
| AC-4, Interlock, 220V | 80 |
| AC-4, Interlock, 380V | 80 |
| AC-4, Interlock, 660V | 80 |
| AC-4, Interlock, 220V | 95 |
| AC-4, Interlock, 380V | 95 |
| AC-4, Interlock, 660V | 95 |
| Rated Control Power (KW) | AC-3, 220V | 120 |
| AC-3, 380V | 120 |
| AC-3, 660V | 100 |
| AC-4, 220V | 1200 |
| AC-4, 380V | 1200 |
| AC-4, 660V | 1200 |
| | See the electrical life curve diagram |
| | See the electrical life curve diagram |
| | See the electrical life curve diagram |
| Electrical life (times in ten thousand) | AC-3 | 120 |
| AC-4 | 1200 |
| | See the electrical life curve diagram |
| Mechanical life (times in ten thousand) | AC-3 | 1200 |
| AC-4 | 1200 |
| | See the electrical life curve diagram |
| Operation frequency (times/hour) | Electrical life | 1200 |
| | 600 |
| Mechanical life | 3600 |
| | 3600 |
| Fuse model matched with SCPD | RT36-00 32 | RT36-00 63 |
| | RT36-00 80 |
| | RT36-00 100 |
| Self-matching thermal overload relay model | NXR-25 | NXR-25, NXR-38 |
| | NXR-38 |
| | NXR-100 |
| | NXR-100 |
| Number of built-in auxiliary contacts | NCX1 default 1 normally open 1 normally closed, NCX1-□ / □ indicates 2 normally closed | |
| Auxiliary contact rated heating current (A) | 10 | |
| Auxiliary contact rated insulation voltage (V) | 690 | |
| Auxiliary contact rated operating current (A) | AC-15 380V/220V | 0.95 |
| DC-13 110V/220V | 0.15 |
| Arc distance (mm) | 0 | |
| ≤ 10 | |
