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- Basic Information
| Item | Parameter |
| Brand | CHNT |
| Series | NC1 Series (AC Contactor) |
| Model | NC1-2508 (4-เสา, 2NO+2NC main contacts) |
| Replacement Model | Can replace Schneider LC1D25008 contactor |
| Certifications | ซีอี, แอล, PCT, RCC, VDE, UKRTEST, ESC, ฯลฯ. |
| Standards | ไออีซี 60947-4-1, GB/T 14048.4 |
- Electrical Rated Parameters
| Parameter | ค่า | Remarks |
| Pole Count | 4ป (4-เสา) | 2NO+2NC main contact configuration |
| AC-1 Rated Current | 40ก (at 400V) | Resistive load |
| AC-3 Rated Current | 25ก (at 400V) | Motor load, the most commonly used category |
| AC-3 Rated Power | 11กิโลวัตต์ (400วี, 3-phase) | Matching motor power |
| จัดอันดับแรงดันไฟฟ้าที่ใช้งาน | 690วีและ (50/60เฮิรตซ์) | Maximum operating voltage |
| ควบคุมแรงดันไฟฟ้าคอยล์ | 24V/48V/110V/220V/230V/240V/380V AC optional | 220VAC and 380VAC are commonly used |
| Coil Power Consumption | Approx. 45VA for pull-in, ประมาณ. 9VA for holding | AC coil parameters |
| Insulation Class | Class F | Coil insulation |
- Mechanical & Environmental Parameters
| Parameter | ค่า |
| Operating Frequency | AC-3: 600 cycles/hour; AC-4: 1200 cycles/hour |
| Electrical Service Life | AC-3: 1 million cycles; AC-4: 100,000 cycles |
| Mechanical Service Life | 10 million cycles |
| Utilization Category | AC-3 (Starting and breaking of squirrel-cage motors during operation), AC-4 (Starting, plugging, reversing operation or jogging of squirrel-cage motors) |
| Installation Category | Category Ⅲ |
| ระดับความสูง | ≤2000m |
| อุณหภูมิแวดล้อม | -5℃~+40℃ (Derating required when temperature exceeds +40℃) |
| Relative Humidity | ≤50% (at +40℃), higher humidity allowed at lower temperatures |
| Protection Degree | IP20 (main body) |
| วิธีการติดตั้ง | Standard 35mm DIN rail mounting or screw fixing |
- Structure & ลักษณะเฉพาะ
- Main Contact Configuration: 4-pole design with 2 เปิดตามปกติ (เลขที่) + 2 ปกติปิด (เอ็นซี) ผู้ติดต่อ, meeting the requirements of special control circuits
- Coil System: Adopts high-quality electromagnetic materials with low power consumption design, ensuring reliable pull-in and low noise
- Arc Extinguishing System: High-efficiency arc extinguishing chamber guarantees breaking capacity and extends contact service life
- ติดต่อเสริม: Can be expanded with F4 series auxiliary contact modules (ordered separately), up to 4NO+4NC maximum configuration
- Thermal Relay Compatibility: Can be combined with NR2 series thermal overload relays to form an electromagnetic starter, realizing motor overload protection
- ขอบเขตการสมัคร
- Frequent starting, stopping and reversing control of AC motors
- Remote switching on and breaking of circuits
- Combination with thermal overload relays to protect circuits prone to overload
- Suitable for various motor control configurations such as DOL (Direct-On-Line) starting, star-delta starters and reversible contactors
- Widely used in industrial automation, building electrical systems, power systems and other fields
- Model Explanation
NC1-2508:
NC1: Series code of CHNT AC contactors
25: AC-3 rated current of 25A
08: 4-pole main contact configuration, 2NO+2NC (08=2NO+2NC, 04=4NO, 00=4NC)
- Selection Tips
- Select the appropriate model according to load type (AC-3/AC-4) and rated current
- Ensure the control circuit voltage matches the coil voltage
- Select NC1-2508Z model if DC coil is required (the suffix “ซี” indicates DC coil)
- Add F4 series auxiliary modules when auxiliary contacts are insufficient
