NO NC Contactor – Normally Open vs Normally Closed Switch

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NO NC Contactor – Normally Open vs Normally Closed Switch

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NO NC Contactor – Normally Open vs Normally Closed Switch

The YCC7 Series NO NC Contactor is a versatile, industrial-grade solution for motor control, designed to handle frequent starting/stopping of AC motors and remote circuit switching. Built to IEC 60947-1/4-1 standards, it combines robust performance with flexible customization, making it ideal for applications from small machinery to large-scale industrial systems. With rated currents from 6A to 630A and voltages up to 690V, the YCC7 series supports diverse setups—from 3P/4P configurations to auxiliary contact expansions for advanced control.

Product Details

Technical Highlights at a Glance

Parameter	Details
Rated Current	6A–630A (AC-3)
Voltage	220V–690V AC
Poles	3P/4P
Auxiliary Contacts	1NO+1NC to 4NO+4NC (F4-D series)
Mechanical Life	120,000–1,200,000 cycles
Environmental Rating	-35°C–+70°C, ≤2000m altitude
Certifications	CCC, CE, TUV, CB

1. Flexible Configuration for Diverse Needs

Pole Options: Choose 3P (standard) or 4P (for neutral line inclusion) to match your system’s design.

Auxiliary Contacts: Customize with 1NO+1NC, 2NO+2NC, or up to 4NO/4NC modules (e.g., F4-DN20, F4-DN40) for precise status monitoring and control. Perfect for systems requiring 2 NO 2 NC contactors for safety interlocks or automation.

2. High Performance in Harsh Environments

Wide Temperature Range: Operates reliably from -35°C to +70°C (normal use: -5°C~+40°C), with derating guidance for extreme heat (e.g., 70°C = 75% capacity).

Altitude Adaptability: Certified for ≤2000m, with correction factors for higher elevations (e.g., 4000m = 78% impulse voltage capacity).

3. Long-Lasting Durability

Mechanical Life: Up to 1200,000 cycles (YCC7-M06-M16) for heavy-duty use.

Electrical Life: 110,000 cycles (AC-3) and 22,000 cycles (AC-4) ensure minimal downtime and lower replacement costs.

4. Scalable for Small to Large Systems

Current Range: 6A–630A covers everything from small pumps (YCC7-M06, 6A) to large motors (YCC7-630, 630A).

Voltage Compatibility: Supports 220V–690V AC, with AC-3/AC-4 ratings for resistive and motor loads (e.g., 55kW at 380V for YCC7-120).

5. Easy Installation & Integration

DIN Rail or Screw Mounting: Adapt to existing panels or new installations.

Wide Coil Voltage Options: AC/DC 12V–440V (50/60Hz) for global compatibility (e.g., 24V, 110V, 220V, 380V).

6. Expandable with Smart Accessories

Time-Delay Modules: LA2-DT0 (0.1s–3s) or LA3-DR4 (10s–180s) for sequenced motor control.

Surge Suppression: FS-M modules protect against voltage spikes in sensitive systems.

Reversing/Starter Kits: Pair with thermal relays for complete magnetic starters or reversing contactors.

Type designation

YCC7-M □□ □□-/□
Product name	Rated current	Breaking capacity	Breaking capacity
YCC7-M	□□	□□ □
Deslgn Serial Number	Rated current,expressed as the rated working current value of 400(380)V and AC-3(6A,9A,12A,16A)	The types and quantities of contacts,represented by numbers(re- versible contactors represent the types and quantities of contacts for a single product) 10:Indicating three normally open main contacts and one normally open auxiliary contact 01:Indicating three normally open main contacts and one normally closed auxiliary contact 08:Indicating two normally open and two normally closed main con- tacts 04:Indicating four normally open main contacts	Z represents DC op- eration,N represents reversible AC contactor

YCC7-120 □□ □□-/□
Product name	Rated current	Breaking capacity	Breaking capacity
YCC7	120	AC220V	50/60Hz
YCC7	09,12,18,25,32,38,40,50,65,80,95,110, 120,160,185,225,265,330,400,500,630	48,110,127,220,230,240,380,400,415	50,60.50/60

Operating conditions

Type	Operating and Installation Conditions
Installation category	Ⅲ
Pollution level	3
Protection degree	YCC7-M06-16A:IP20,YCC7-09~38:IP20;YCC7-40~95:YCC7-110 IP10,YCC7-120-630 IP10
Ambient temperature	limit of temperature:-35°℃~+70℃, normal temperature:-5℃~+40℃, The average no more than +35℃ within 24 hours.
Altitude	≤2000m
Ambient temperature	The maximum temperature is 70 degrees,the relative humidity of the air does not exceed 50%,and the temperature below 50%can allow higher relative humidity.If the temperature is 20℃,the air relative humidity could up to 90%, Special measures should be taken for occasional condensation due to humidity changes.
Installation position	Inclination between installation surface and vertical surface should not exceed±5°
Shock vibration	Products should be installed and used without significant shake,shock and vibration.

No.	Three-phase asynchronous motor power KW(AC-3)			Max Operating Current(AC-3380V400V)	Contactor Model	The number of auxiliary products
No.	220V/230V	380V/400V	380V/400V	Max Operating Current(AC-3380V400V)	Contactor Model	Normally Open(NO)	Normally Closed(NC)
1	1.5	2.2	3	6	YCC7-M0610	1	0
2	1.5	2.2	3	6	YCC7-M0601	0	1
3	2.2	4	4	9	YCC7-M0910	1	0
4	2.2	4	4	9	YCC7-M0901	0	1
5	2.2	4	5.5	9	YCC7-09	1	1
6	3	5.5	4	12	YCC7-M1210	1	0
7	3	5.5	4	12	YCC7-M1201	0	1
8	3	5.5	7.5	12	YCC7-12	1	1
9	3	7.5	7.5	16	YCC7-M1610	1	0
10	3	7.5	7.5	16	YCC7-M1601	0	1
11	4	7.5	10	18	YCC7-18	1	1
12	5.5	11	15	25	YCC7-25	1	1
13	7.5	15	18.5	32	YCC7-32	1	1
14	11	18.5	30	40	YCC7-40	1	1
15	15	22	37	50	YCC7-50	1	1
16	18.5	30	37	65	YCC7-65	1	1
17	22	37	37	75	YCC7-80	1	1
18	22	37	45	85	YCC7-95	1	1
19	25	45	45	100	YCC7-110	1	1
20	37	55	80	120	YCC7-120	2	2
21	45	75	100	160	YCC7-160	2	2
22	55	90	100	185	YCC7-185	2	2
23	63	110	110	225	YCC7-225	2	2
24	75	132	160	265	YCC7-265	2	2
25	90	160	200	330	YCC7-330	2	2
26	132	200	300	400	YCC7-400	2	2
27	160	250	335	500	YCC7-500	2	2
28	200	335	350	630	YCC7-630	2	2

Techniacal data

YCC7 Specifications
Main circuit characteristic
Type			YCC7-M06	YCC7-M09	YCC7-M12	YCC7-M16
Poles
			3P,4P
Rated insulation voltage(Ui)		V	690
Rated operating voltage(Ue)		V	380/400,660/690
Rated thermal current(Ith),AC-1			20	20	20	20
Rated operation current(le) Rated	AC-3,380/400V	A	6	9	12	16
	AC-3,660/690V	A	3.8	4.9	4.9	4.9
	AC-4,380/400V	A	6	9	9	12
	AC-4,660/690V	A	3.8	4.9	4.9	4.9
operational power(Pe)	AC-3,380/400V	kW	2.2	4	5.5	7.5
	AC-3,660/690V	kW	3	4	4	4
Mechanical life		10000 times	1200
Electrical life	AC-3		12
	AC-4		See electrical life curve
Frequency of operation	AC-3	times/ hour	1200
	AC-4		300
Connecting capability of main circuit terminal
Flexible wire	wire	mm²	1...4
No terminal	2 wire	mm²	1...4
Flexible wire	1 wire	mm²	1...4
With terminals	2 wire	mm²	1..2.5
Hard wire	1 wire	mm²	1...4
No terminal	2 wire	mm²	1...4
Fastening torque		N ·m	1.2
Coil
Rated control voltage(Us)	50Hz	V	24,36,48,110,127,220,380,415
	50/60Hz	V	24,36,48,110,127,220,380,415
	DC	V	12,24,36,48,110,127,220
Allowed control circuit voltage(Us)	Operation	V	Installation inclination angle ±22.5°:85%~110%Us;Installation inclination angle±5°:70%~120%
	Release(AC)	V	Installation inclination angle±22.5°:20%~75%Us;Installation inclination angle±5°:20%~60%
	Release(DC)	V	Installation inclination angle ±22.5°:10%~75%Us;Installation inclination angle±5°:10%~60%
Power consumption of coil	Actuation	VA	20-40
	Keep	VA	9.5
	Consumption	W	1-3
Auxiliary contacts
Auxiliary contacts specification		A	1NO+1NC
Rated thermal current(Ith)		A	10
Rated operating voltage(Ue)	AC	V	380/400
	DC	V	220
Rated control capacit	AC-15	VA	Ue/le:AC380V/400V/1.5A Ith:10A
	DC-13	W	Ue/le:DC220V/0.3A
Certification			CCC,CE,TUV,CB