NC7 AC Contactor

Name: NC7 AC Contactor
Brand: Chint

The CHINT NC7 AC Contactor is a compact, high-efficiency contactor designed for switching and controlling AC circuits up to 690 V and 25 A. It is ideal for frequent remote operations in motor control, lighting, and power systems. Engineered for reliability and long service life, the NC7 features a modular design, low coil consumption, and quiet operation. Built to IEC/EN 60947-4-1 standards, it delivers safe, stable performance and compatibility with auxiliary blocks, thermal overload relays, and protective devices for industrial and commercial applications.

Product Information

Standard: IEC/EN 60947-4-1
Certifications: CE, UL, CCC, RoHS
Utilization Category: AC-1, AC-3
Rated Operational Voltage (Ue): Up to 690 V
Rated Insulation Voltage (Ui): 690 V
Rated Impulse Withstand Voltage (Uimp): 6 kV
Rated Operational Current (Ie):
- AC-3 (400 V): 9 A, 12 A, 18 A, 25 A
Motor Power Ratings (AC-3):
- 220/230 V: 2.2–5.5 kW
- 380/400 V: 4–11 kW
- 660/690 V: 5.5–15 kW
Rated Frequency: 50/60 Hz
Control Circuit Voltages:
- AC: 24, 48, 110, 127, 220, 230, 380, 400 V
- DC: 12, 24, 48, 110, 220 V
Coil Power Consumption:
- Inrush: 50–70 VA (AC) / 3.5–5 W (DC)
- Holding: 4–10 VA (AC) / 2.5 W (DC)
Mechanical Life: 10 million operations
Electrical Life (AC-3): 1 million operations
Operating Cycles per Hour:
- AC-3: 600
Mechanical: 3,600
Ambient Temperature: −5 °C to +40 °C
Altitude: ≤ 2,000 m
Mounting Position: Vertical ±30° inclination
Protection Degree: IP20
Connection Type: Screw or fast terminal (for NC7K versions)
Terminal Capacity: 1.5–6 mm²
Tightening Torque: 0.8–1.2 N·m
Auxiliary Contact Configuration:
- Standard: 1NO + 1NC
- Optional: 2NO + 2NC
Auxiliary Contact Ratings:
- AC-15: 380 V / 0.95 A
- DC-13: 220 V / 0.15 A
Mounting Type: DIN rail (TH35-7.5) or panel mounting
Compatible Accessories:
- Auxiliary blocks: F4 or F5 series
- Time-delay blocks: F5-T0/F5-T2 (0.1–180 s)
- Thermal overload relays: NR2 series (up to 25 A)
- Mechanical interlocks: NJL7 series
Applications: Motor starters, lighting circuits, HVAC systems, and control panels

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NC7-AC Contactor-Catalog.pdf

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2004-NC7-09~95-AC Contactor-Manual.pdf

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2004-NC7-115~620-AC Contactor-Manual.pdf

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2310-NC7-115-AC Contactor-CB Certificate.pdf

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2211-NC7-AC Contactor-CE Declaration Certificate.pdf

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2109-NC7-250-AC Contactor-CB Certificate.pdf

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2109-NC7-620-AC Contactor-CB Certificate.pdf

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2109-NC7-300-AC Contactor-CB Certificate.pdf

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2109-NC7-95-AC Contactor-CB Certificate.pdf

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2109-NC7-205-AC Contactor-CB Certificate.pdf

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2109-NC7-65-AC Contactor-CB Certificate.pdf

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2109-NC7-38-AC Contactor-CB Certificate.pdf

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2109-NC7-410-AC Contactor-CB Certificate.pdf

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2109-NC7-25-AC Contactor-CB Certificate.pdf

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2109-NC7-475-AC Contactor-CB Certificate.pdf

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2109-NC7-22-AC Contactor-CB Certificate.pdf

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1510-NC7-475-AC Contactor-KEMA Certificate.pdf

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1510-NC7-250-AC Contactor-KEMA Certificate.pdf

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1510-NC7-620-AC Contactor-KEMA Certificate.pdf

203.64KB

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1510-NC7-300-AC Contactor-KEMA Certificate.pdf

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1510-NC7-205-AC Contactor-KEMA Certificate.pdf

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1510-NC7-410-AC Contactor-KEMA Certificate.pdf

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1509-NC7-115-170-AC Contactor-KEMA Certificate.pdf

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1311-NC7-40-65-AC Contactor-KEMA Certificate.pdf

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1311-NC7-80-95-AC Contactor-KEMA Certificate.pdf

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1311-NC7-09-12-AC Contactor-KEMA Certificate.pdf

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1311-NC7-18-22-AC Contactor-KEMA Certificate.pdf

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1311-NC7-32-38-AC Contactor-KEMA Certificate.pdf

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1311-NC7-25-AC Contactor-KEMA Certificate.pdf

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NC7-32～38-AC Contactor-Drawing-2D.pdf

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NC7-25-AC Contactor-Drawing-3D.stp

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NC7-8011～9511-AC Contactor-Drawing-3D.stp

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NC7-18-AC Contactor-Drawing-2D.pdf

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NC7-410-AC Contactor-Drawing-2D.pdf

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NC7-410-AC Contactor-Drawing-3D.stp

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NC7-1811～2211-AC Contactor-Drawing-3D.stp

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NC7-09～12-AC Contactor-Drawing-2D.pdf

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NC7-4011～6511-AC Contactor-Drawing-3D.stp

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NC7-4011～6511-AC Contactor-Drawing-2D.pdf

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NC7-250-AC Contactor-Drawing-2D.pdf

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NC7-475-AC Contactor-Drawing-2D.pdf

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NC7-620-AC Contactor-Drawing-2D.pdf

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NC7-300-AC Contactor-Drawing-3D.stp

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NC7-1811～2211-AC Contactor-Drawing-2D.pdf

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NC7-32～38-AC Contactor-Drawing-3D.stp

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NC7-115～170-AC Contactor-Drawing-3D.stp

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NC7-8011～9511-AC Contactor-Drawing-2D.pdf

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NC7-300-AC Contactor-Drawing-2D.pdf

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NC7-0911～1211-AC Contactor-Drawing-3D.stp

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NC7-205-AC Contactor-Drawing-2D.pdf

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NC7-115～170-AC Contactor-Drawing-2D.pdf

29.87KB

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NC7-18-AC Contactor-Drawing-3D.stp

11.86MB

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NC7-620-AC Contactor-Drawing-3D.stp

41.18MB

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NC7-0911～1211-AC Contactor-Drawing-2D.pdf

46.32KB

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NC7-09～12-AC Contactor-Drawing-3D.stp

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NC7-25-AC Contactor-Drawing-2D.pdf

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NC7-250-AC Contactor-Drawing-3D.stp

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FAQs

What is the main application of the NC7 AC Contactor?

The NC7 is designed for frequent switching and control of AC circuits, particularly for motor starting, power distribution, and automation systems.

What current and power ratings are supported?

It supports 9–25 A operational current, controlling motors up to 11 kW at 400 V.

Can it operate with both AC and DC coils?

Yes, the NC7 contactor is available with AC and DC control coils, allowing flexible use in various control circuit designs.

What accessories are compatible with the NC7 series?

It supports auxiliary contact blocks, time-delay modules, interlocks, and NR2 thermal overload relays, enabling full customization for advanced control functions.

What ensures its durability and reliability?

The NC7 features silver-alloy contacts, a double-break design, and a high mechanical life of up to 10 million operations, ensuring consistent long-term performance.

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