40A Din Rail Ac Magnetic Contactor 3 Phase Electrical 3 Poles
Application:
SC series AC contactor (hereinafter contactor) is suitable for
using in the circuits up to the rated voltage 690V AC 50 HZ or 60
HZ , rated current up to 95A, for making, breaking, frequently
starting & controlling the AC motor. Combined with the thermal
relay, it becomes the electromagnetic starter for protecting the
overload circuits.
This series contactor complies with GB 14048, IEC60947-4-1
Model and Implication:
Main parameters and Technical Performance:
| Type | SC25 |
| Rated heating current (A) | 40 |
| Rated insulation voltage (V) | 690 |
| Rated impact withstand voltage (KV) | 6 |
| Rated making capacity | 10le |
| Rated breaking capacity | 8le |
| Poles | 3 |
| Auxiliary contact | NO/NC |
| Short-time withstand current(A) | 10S | 200 |
| Rated working current(A) | 380V | AC-3 | 25 |
| AC-4 | 8.5 |
| 660V | AC-3 | 18 |
| AC-4 | 4.4 |
AC-3 capacity of phase 3
squirrel-cage motor (AC-3) KW | 220V | 5.5 |
| 380V | 11 |
| 660V | 15 |
| Operation frequency (times/h) | Electrical life | AC-3 | 600 |
| AC-4 | 300 |
| Mechanical life | 3600 |
| Electrical life (10000/times) | AC-3 | 100 |
| AC-4 | 20 |
| Mechanical life (10000/times) | 1000 |
| Equipped fuse type | RT16-40 |
| Rated control supply voltage Us(V) | 50/60Hz | 12~480 |
| Operation range | Pull-in | (85%~110%)Us +40℃ |
| Releasing | (20%~75%)Us -5℃ |
| Ac coil average power(VA) | Start | 110 |
| Keeping | 11 |
| Power efficiency class | class 3 |
| Thermal loss(W) | 3~4 |
| Actuation time(ms) | Close | 12~25 |
| Break | 5~20 |
| Main circuit wiring | flexible wire without cold
pressing terminal (㎟) | 1 stick | 1.5～10 |
| 2 sticks | 1.5～6 |
flexible wire with cold
pressing terminal (㎟) | 1 stick | 1～6 |
| 2 sticks | 1～4 |
| Hard wire (㎟) | 1 stick | 1.5～6 |
| 2 sticks | 1.5～6 |
| Fastening screw size | | M4 |
| Tightening fastening torque (N.m) | | 1.2 |
| Control loop wiring | flexible wire without cold
pressing terminal (㎟) | 1 stick | 1～4 |
| 2 sticks | 1～4 |
flexible wire with cold
pressing terminal (㎟) | 1 stick | 1～4 |
| 2 sticks | 1～2.5 |
| Hard wire (㎟) | 1 stick | 1～4 |
| 2 sticks | 1～4 |
| Fastening screw size | | M3.5 |
| Tightening fastening torque (N.m) | | 0.8
|
Working and Installation Condition:
Ambient air temperature: -5℃--+40℃ and average not more than +35℃
within 24 hours;
Altitude: ≤ 2000m;
Air condition: when the highest temperature is +40℃, the air
relative humidity is not up to 50%, but the higher humidity is
allowed at lower temperature. Like, 90% humidity at 20℃. The
condensate dew should be considered when at lower temperature;
Pollution degree: Class 3
Installation category:III
Protection degree: IP20
Installation condition: the gradient angle between installation
side and vertical side should not be more than ±5℃
Impact and vibrattion: the contactor must be installed and operate
under the circumstances of no obvious shaking, impact and
vibration.
Structure characteristic:
It can be installed with auxiliary contacts block, time relay and
current-limited contacts block, and thermal relay, then to be other
derivative products;
This series contactor has small volume, light weight, less power
loss, long life and safe and reliability etc;
The contactor can be equipped with 1NO auxiliary contact or 1NC
auxiliary contact(less than 32A), and 1NO auxiliary contact+1NC
auxiliary contact(more than 40A). In addition, it can be equipped
with F4 auxiliary contactor block (2blocks or 4blocks);
In addition to use screw to install, contactor can be tightened
with the standard installing rail of 35mm (sc09~95) and the
standard installing rail of 75mm(SC40~95)
Installation dimension:
| A max | B max | C max | a | b | ∅ |
| 57 | 86 | 95 | 40 | 48 | 4.5 |
