Chint NC8-80 Contactor Series

The Chint NC8-80 AC Contactor is an 80A heavy-duty power contactor designed for frequent starting and stopping of AC motors and remote circuit switching in three-phase systems up to 690V. As part of the NC8 series, it offers multiple pole and coil options, robust mechanical life, and easy integration in industrial control panels.

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Key Features

• 80A rated operational current (AC-3, 415V) for heavy motor loads

• Rated operational voltage up to 690V AC, 50/60 Hz

• Available in 3-pole and 4-pole configurations for different system designs

• Standard 1NO + 1NC auxiliary contacts for control and signalling

• Wide coil voltage range: 24V, 36V, 48V, 110V, 127V, 220V, 230V, 380V AC/DC (model dependent)

• DIN rail or screw mounting for flexible panel installation

• Can be combined with Chint NR2 series thermal overload relays to form electromagnetic starters

• Robust design with long electrical and mechanical endurance for industrial duty

• Conforms to IEC/EN 60947-4-1 for low-voltage switchgear

• Compatible with auxiliary blocks, delay modules, mechanical interlocks and surge suppressors for extended functionality

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Technical Specifications 

Parameter	Details
Model	NC8-80
Brand	Chint
Series	NC8 AC Contactor Series
Product Type	AC Power Contactor
Rated Operational Current (AC-3)	80 A (at 415 V)
Rated Operational Voltage (Ue)	Up to 690 V AC
Rated Insulation Voltage (Ui)	Up to 690 V (series up to 1000 V on higher frames)
Number of Poles	3-pole and 4-pole variants
Main Contacts	3 NO (3P models); 4 NO (4P models)
Auxiliary Contacts (typical)	1 NO + 1 NC
Coil Type	AC or DC operational (model dependent)
Coil Voltage Options	24V, 36V, 48V, 110V, 127V, 220V, 230V, 380V AC/DC (check variant)
Frequency	50 / 60 Hz
Utilization Categories	AC-3 (motor starting), AC-1 (non-inductive / slightly inductive loads)
Mounting Type	35 mm DIN rail or screw/panel mounting
Overload Protection	Works with Chint NR2 thermal overload relays (electromagnetic starter)
Standards & Compliance	IEC/EN 60947-4-1
Typical Applications	Motor control, HVAC, pumps, distribution panels, general machinery
Approx. Dimensions (L×W×H)	4.7 × 14.7 × 13.5 cm Moglix
Approx. Weight	0.90 kg Moglix
Country of Origin (example listing)	India Moglix

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Applications 

• Direct-on-line (DOL) starting and stopping of three-phase induction motors

• Motor control centres (MCCs) and industrial distribution panels

• HVAC systems—compressors, condenser fans, AHUs and chillers

• Pump, blower, and conveyor control circuits

• General machinery and process automation panels

• Power switching and load management in industrial plants

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What’s in the Box?

• 1 × Chint NC8-80 AC Contactor (specific pole and coil voltage variant as ordered)

• Integrated auxiliary contacts (1NO + 1NC)

• Product label with ratings and terminal identification

• Basic installation/wiring information (as per manufacturer packing)

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FAQ 

Q1. What is the current rating of the Chint NC8-80?
A1. The NC8-80 has a rated operational current of 80A in AC-3 at 415V, suitable for heavy motor loads.

Q2. Is the NC8-80 available in both 3-pole and 4-pole versions?
A2. Yes, the series provides 3P (3NO) and 4P (4NO) versions to match different system and isolation requirements.

Q3. Which coil voltages are available?
A3. Coil voltage options include 24V, 36V, 48V, 110V, 127V, 220V, 230V, and 380V AC/DC, depending on the exact model ordered.

Q4. Can NC8-80 be used with a thermal overload relay?
A4. Yes. It can be combined with a suitable Chint NR2 thermal overload relay to form an electromagnetic starter for motor overload protection.

Q5. Does it comply with international standards?
A5. The NC8-80 conforms to IEC/EN 60947-4-1, making it suitable for industrial low-voltage motor control applications.

Q6. How is the NC8-80 mounted?
A6. It supports DIN rail and screw mounting, allowing easy installation in new or existing control panels.