CHINT NXC-65A AC Contactor

Model Segment	Description
NXC	Product series code: CHINT KunLun series AC contactor, upgraded replacement for traditional CJX2 series
65	Rated operational current: 65A (under AC-3, 400V)
A	Configuration code: Standard type (no suffix = standard; suffix /N = reversing type)
Common Suffix	Coil voltage code: 220V / 380V / 110V / 24V, e.g. NXC-65 220V

Full Model Example:

NXC-65 220V 50Hz = CHINT KunLun 65A AC contactor, coil voltage 220V, 50Hz, standard configuration

Typical Order No.: 710010100000281 (NXC-65 220V 50Hz, 1NO+1NC)

Main Technical Data

Category	Specifications	Remarks
Basic Information
Brand / Series	CHINT Electric / KunLun NXC Series	Compact structure, direct replacement for CJX2-65
Product Type	3-phase AC Contactor	For frequent motor starting & remote circuit switching
Compliance Standards	GB/T 14048.1 / IEC 60947-1, GB/T 14048.4 / IEC 60947-4-1	International certified, safe and reliable
Electrical Data
Rated Operating Current (Ie)	65A (AC-3, 400V)	Main contact rated current
Rated Operating Voltage (Ue)	380V / 400V (50Hz)	Standard industrial grid voltage
Rated Insulation Voltage (Ui)	690V	Max withstand voltage of insulation system
Rated Impulse Withstand Voltage (Uimp)	8kV	Overvoltage protection capability
Control Coil Voltage	Optional AC 24V / 36V / 110V / 220V / 380V	Selected according to control system
Coil Frequency	50 / 60Hz	Global grid compatibility
Rated Operating Frequency	1200 cycles/h (AC-3)	High frequent operation capability
Breaking Capacity	10× rated current	Short-circuit withstand capability
Contact Configuration
Main Contacts	3NO (3-pole normally open)	Standard for main power circuit
Auxiliary Contacts	1NO + 1NC	Expandable on request
Auxiliary Contact Rating	5A / 220V AC	For control signal circuits
Physical Characteristics
Dimensions (W×H×D)	90mm × 150mm × 105mm	Compact, space-saving
Weight	Approx. 0.8kg	Lightweight for easy installation
Mounting	Standard 35mm DIN rail / screw mounting	Snap-on design, fast assembly
Protection Class	IP20	Suitable for cabinet installation
Operating Temperature	-30℃ ~ +60℃	Wide temperature range for harsh environments
Storage Temperature	-25℃ ~ +40℃	Suitable for transportation & warehouse storage
Electromagnetic Performance
Coil Power	Approx. 180VA (pick-up) / 25VA (holding)	Low power consumption, energy-saving
Drop-out Voltage	30% ~ 70% of rated voltage	Reliable disconnection
Electromagnetic System	Optimized silicon steel lamination (32-piece core)	Smooth closure, low noise & loss
Safety Features
Certifications	CE, CCC	Domestic & international compliance
Arc Extinction	Multi-channel magnetic blow-out arc suppression	High breaking performance
Protection Functions	Overcurrent, overheating, undervoltage protection	Comprehensive equipment & circuit protection

Accessory List

Accessory	Model	Function	Mounting Position
Auxiliary Contact Block	AX-3M/20 (2NO), AX-3M/02 (2NC), AX-3M/11 (1NO+1NC)	Expand auxiliary contacts for complex logic	Top front
Time Delay Module	F5-08 (0.1~30s), F5-11 (0.1~180s)	On-delay / off-delay control	Top
Surge Suppressor	SR2-220, SR2-380	Suppress coil surge voltage	Bottom
Mechanical Interlock	NXC-IL	Prevent phase short circuit for reversing contactor (NXC-65/N)	Side
Mounting Rail	35mm standard DIN rail	Fixed installation	Inside control cabinet
Terminal Protection Cover	Standard equipped	Anti-touch protection	Main & auxiliary terminals
Mounting Screws	M4×12mm	Screw fixing	Base mounting holes
Operation Manual	Electronic / hard copy	Installation, commissioning & maintenance guide	—
Coil Connector	Optional	Fast coil wiring & replacement	Coil terminal side

Cross-Brand Equivalent & Replacement

Brand	Series	Model	Rated Current	Differences	Replacement Compatibility
CHINT	CJX2	CJX2-6511	65A	Old generation; NXC is fully upgraded version	Direct full replacement (same mounting size)
Schneider	TeSys D	LC1D65M7C	65A	Import brand, higher cost, similar functions	High (verify mounting & auxiliary contacts)
Siemens	3RT	3RT2026-1BB40	65A	Modular design, hot-swap support	Medium (different dimension & wiring)
ABB	AF	AF65-30-11	65A	Wide-voltage coil, global application	Medium (needs position adjustment)
Mitsubishi	S-N	S-N65	65A	Compact Japanese design, moderate price	Medium (different terminal layout)
Changshu	CK3	CK3-65	65A	Domestic equivalent, same performance	High (fully compatible size & mounting)

Main Functions & Applications

Core Functions

High-efficiency Electromagnetic System: Optimized core structure for stable closure, low noise and low energy consumption.
Highly Reliable Arc Suppression: Magnetic blow-out technology with 10× rated breaking capacity for higher safety.
Flexible Expansion: Supports auxiliary contacts, timer modules and surge suppressors for customized control.
Easy Installation: Snap-on DIN rail mounting for fast assembly and maintenance.
Wide Temperature Adaptation: Stable operation from -30℃ to +60℃ for various industrial environments.

Typical Applications

Motor Control: Frequent start/stop/reverse of 3-phase asynchronous motors (approx. 30kW @ 400V).
Industrial Automation: Production lines, conveyors, fans, water pumps and general machinery.
Building Electrical: HVAC systems, fire water pumps, elevator auxiliary circuits.
Machine Tools: Spindle control for milling machines, drilling machines and small machining centers.
Power Distribution: Combined with thermal overload relays (NR2 series) for complete motor protection starters.
Supplementary Notes
Product Upgrade: The NXC KunLun series fully replaces the traditional CJX2 series with improved mechanical structure, electromagnetic performance and expandability.
Selection Guidelines:

Select current rating according to motor power (65A matches approx. 30kW motor).

Confirm coil voltage (220V / 380V most common).

Expand auxiliary contacts via AX series modules if signal points are insufficient.

Maintenance Tips:

Regularly check contact wear; replace contacts when excessive contact resistance occurs.

Keep the contactor clean from dust and moisture.

Apply periodic energization (1–2 times monthly) for long-term idle equipment to prevent coil dampness.

CHINT Contactor Full Series List

Product Series Overview

Series	Positioning	Current Range	Features	Replacement Relation
NXC	KunLun Main Series	6A ~ 630A	Compact, modular, high cost-performance	Full replacement for CJX2
NC5	High-performance Intelligent Series	9A ~ 630A	Smart control, energy-saving, high stability	High-end alternative to NXC
CJX2	Classic Traditional Series	9A ~ 95A	Mature model, cost-effective	Gradually phased out by NXC
NXCF	Slim Compact Series	9A ~ 32A	Ultra-thin, space-saving	Small cabinet & compact installation
NC8	Heavy-duty Industrial Series	9A ~ 500A	High mechanical life, strong arc resistance	Frequent start-stop working conditions
NXCC	Capacitor Switching Contactor	16A ~ 100A	Inrush current suppression, reactive power compensation dedicated	Capacitor bank control
NCH8	Household & Building Series	16A ~ 63A	Miniature size, building automation	Lighting, HVAC & residential control
CJ40 / CJ20	High-power Heavy Series	100A ~ 630A	Heavy-load design for large motors	Heavy industrial equipment

NXC KunLun Series Main Model List (AC-3 400V)

Rated Current	Standard Model	Reversing Model	Standard Aux. Contact	Matched Motor Power	Order No.
6A	NXC-06M	—	1NO+1NC	0.75kW	710010100000276
9A	NXC-09	NXC-09/N	1NO+1NC	1.5kW	710010100000277
12A	NXC-12	NXC-12/N	1NO+1NC	2.2kW	710010100000278
18A	NXC-18	NXC-18/N	1NO+1NC	3kW	710010100000279
25A	NXC-25	NXC-25/N	1NO+1NC	5.5kW	710010100000280
32A	NXC-32	NXC-32/N	1NO+1NC	7.5kW	710010100000281
40A	NXC-40	NXC-40/N	1NO+1NC	11kW	710010100000282
50A	NXC-50	NXC-50/N	1NO+1NC	15kW	710010100000283
65A	NXC-65	NXC-65/N	1NO+1NC	30kW	710010100000284
80A	NXC-80	NXC-80/N	1NO+1NC	37kW	710010100000285
95A	NXC-95	NXC-95/N	1NO+1NC	45kW	710010100000286
100A	NXC-100	NXC-100/N	2NO+2NC	55kW	710010100000287
120A	NXC-120	NXC-120/N	2NO+2NC	75kW	710010100000288
160A	NXC-160	NXC-160/N	2NO+2NC	90kW	710010100000289
200A	NXC-200	NXC-200/N	2NO+2NC	110kW	710010100000290
250A	NXC-250	NXC-250/N	2NO+2NC	132kW	710010100000291
315A	NXC-315	NXC-315/N	2NO+2NC	160kW	710010100000292
400A	NXC-400	NXC-400/N	2NO+2NC	200kW	710010100000293
500A	NXC-500	NXC-500/N	2NO+2NC	250kW	710010100000294
630A	NXC-630A	NXC-630A/N	2NO+2NC	315kW	710010100000295

NC5 High-performance Series

Model Rule

NC5-[Current][Type][Coil Voltage]

– Type: Standard / E=Economy / NE=Intelligent / F=Reversing

Current Range	Standard	Intelligent	Reversing	Aux. Contact	Insulation Voltage
9A~38A	NC5-09~38	NC5NE-09~38	NC5F-09~38	1NO+1NC	690V
40A~100A	NC5-40~100	NC5NE-40~100	NC5F-40~100	1NO+1NC	690V
115A~250A	NC5-115~250	NC5NE-115~250	NC5F-115~250	2NO+2NC	1000V
315A~630A	NC5-315~630	NC5NE-315~630	NC5F-315~630	2NO+2NC	1000V

Classic CJX2 Series

Current	Model	Aux. Contact	Matched Motor
9A	CJX2-0910 / 0901 / 0911	1NO / 1NC / 1NO+1NC	1.5kW
12A	CJX2-1210 / 1201 / 1211	1NO / 1NC / 1NO+1NC	2.2kW
18A	CJX2-1810 / 1801 / 1811	1NO / 1NC / 1NO+1NC	3kW
25A	CJX2-2510 / 2501 / 2511	1NO / 1NC / 1NO+1NC	5.5kW
32A	CJX2-3210 / 3201 / 3211	1NO / 1NC / 1NO+1NC	7.5kW
40A	CJX2-4010 / 4001 / 4011	1NO / 1NC / 1NO+1NC	11kW
50A	CJX2-5010 / 5001 / 5011	1NO / 1NC / 1NO+1NC	15kW
65A	CJX2-6510 / 6501 / 6511	1NO / 1NC / 1NO+1NC	30kW
80A	CJX2-8010 / 8001 / 8011	1NO / 1NC / 1NO+1NC	37kW
95A	CJX2-9510 / 9501 / 9511	1NO / 1NC / 1NO+1NC	45kW

Other Special Series

NXCF Slim Series

Current	Model	Width	Aux. Contact
9A	NXCF-09	22.5mm	1NO+1NC
12A	NXCF-12	22.5mm	1NO+1NC
16A	NXCF-16	22.5mm	1NO+1NC
25A	NXCF-25	36mm	1NO+1NC
32A	NXCF-32	36mm	1NO+1NC

NC8 Heavy-duty Series

Current	Model	Poles	Mechanical Life
9A~38A	NC8-09~38	3P	10 million cycles
40A~100A	NC8-40~100	3P	10 million cycles
115A~500A	NC8-115~500	3P/4P	8 million cycles

NXCC Capacitor Contactor

Current	Model	Suppression Type	Capacitor Rating
16A	NXCC-16	Series resistor	10kvar
25A	NXCC-25	Series resistor	15kvar
32A	NXCC-32	Series resistor	20kvar
40A	NXCC-40	Series resistor	25kvar
50A	NXCC-50	Series resistor	30kvar
63A	NXCC-63	Series resistor	40kvar
80A	NXCC-80	Series resistor	50kvar
100A	NXCC-100	Series resistor	60kvar

NCH8 Building / Household Contactor

Model	Poles	Current	Application
NCH8-16M	2P	16A	Smart home control
NCH8-25M	2P	25A	Air conditioning control
NCH8-32M	2P	32A	Small water pump
NCH8-40M	2P	40A	Floor heating system
NCH8-63M	2P	63A	Building lighting

Universal Accessories

Accessory	Model	Applicable Series
Auxiliary Contact Block	AX-3M Series	NXC / NC5 / CJX2
Time Delay Module	F5 Series	Full series
Coil Surge Suppressor	SR2 Series	Full series
Mechanical Interlock	NXC-IL / NC5-IL	Reversing contactor
Thermal Overload Relay	NR2 / NR5 Series	Motor protection combination
35mm DIN Rail	Standard type	Full cabinet-mounted contactors