Rated operational current AC-3: 50A (380V) 39A (660V) Rated operational voltage (VAC): 380/660 Rated insulation voltage (VAC): 690 Controlled power Pe AC-380V (kW): 22 Coil control voltage AC/DC (V): 24/48/110/220 Coil operating power consumption (W): ≤3 Electrical life AC-3 (operations): 50×10⁴ Mechanical life (operations): 500×10⁴ Mounting method: DIN rail / Screw Auxiliary contacts: 2NO+2NC

Product Description

1. Application

The QNC(QNJY)-18A to 75A series silent AC contactors (hereinafter referred to as contactors) are primarily used in circuits with an AC supply frequency of 50Hz (or 60Hz), a rated insulation voltage of 690V, a rated operational voltage up to 660V, and a rated operational current of 18A to 75A at 380V under AC-3 duty, for remote switching and breaking of circuits. They can be combined with suitable thermal overload relays to form electromagnetic starters to protect circuits that may experience operational overloads, and are also suitable for frequent starting and control of various AC motors. The silent AC contactors feature AC or DC control. They offer stable pull-in and noiseless operation during work, making them an excellent choice for elevator control systems. Product design complies with standards: IEC/EN 60947-4-1, GB/T 14048.1, GB/T 14048.4.

2.Coding

Figures	Coding
1	Company code: QN represents Nanjing Quanning Electric Co., Ltd.
2	Contactor
3	Company code: QN represents Nanjing Quanning Electric Co., Ltd.
4	JY: Silent function
5	Rated Operational Current: Under 380V, AC-3 conditions
6	B: Indicates main contacts are 3 Normally Closed; blank indicates Normally Open
7	Number of Auxiliary Contacts: 22 indicates 2NO+2NC
8	Coil Voltage (Us)

3.Key Points

■ Performance Features ▲ Control methods include: AC control and DC control; ▲ DC control: No AC hum, low noise. ■ Magnetic System Features ▲ This product's electromagnetic system features a magnetic latching design. The coil control is energy-saving type, controlled by a circuit board. The coil holding power consumption after the contactor pulls in is ≤3W. ■ Structural Features ▲ The operating mechanism is direct-acting; contacts are double-break.

4. Operating and Mounting Conditions

■ Normal Operating Conditions ▲ Ambient air temperature: -25°C to +60°C; ▲ Ambient humidity: Maximum relative humidity 85%; ▲ Altitude at installation site not exceeding 3000m; ▲ Pollution degree at the contactor installation site: Degree 3. ■ Mounting Conditions ▲ Contactor installation category: Category III; ▲ Inclination of the mounting surface relative to the vertical plane: Not more than ±5°; ▲ The contactor can be mounted on 35mm DIN rail or by screws. ■ Torque Applied to Terminal Screws

Screw	Rated Torque (Nm)	National Standard Torque (Nm)	Maximum Torque (Nm)
M3	0.5	0.5	1
M3.5	0.8	0.8	1.2
M4	1.2	1.2	1.4
M5	2.0	2.0	2.6

5. Contactor Product Specifications

■ This series is divided into two frame sizes based on current rating: QNC(QNJY)-18, 25, 32 belong to one frame size; QNC(QNJY)-40, 50, 65, 75 belong to another frame size. ■ Coil control voltage: AC/DC: 24V, 48V, 110V, 220V. ■ Contact configuration: Main contacts: 3 Normally Open (3P). Auxiliary contacts: 2NO+2NC (3P+2NO+2NC).

6. Technical Parameters

Specifications Parameters					QNC(QNJY)-50
Rated insulation voltage Ui (V)					AC690
Rated operational voltage Ue (V)					AC380 AC660
Conventional free-air thermal current Ith (A)					70
Rated operational current Ie: AC-3 (A)				380V	50
				660V	39
Controlled power Pe AC-380V (kW)					22
Mechanical life (10^4 operations)					500
Electrical life		AC-3 (10^4 operations)			50
		Operating rate (ops/h)			600
Contact configuration					Main contacts 3NO + Auxiliary contacts 2NO+2NC (3P+2NO+2NC)
Auxiliary Contacts	Conventional free-air thermal current Ith (A)				6
	Rated load				AC-15: Ue/Ie: 380V/0.95A DC-13: Ue/Ie: 220V/0.15A
	Minimum make load AC-15				5V/3mA
Coil	Control supply voltage (Us)				AC/DC：24V、48V、110V、220V
	Coil power		Pick-up		≤88W
			Hold		≤3W
	Operating characteristics		Pick-up voltage		（75～110）%US
			Drop-out voltage		（10～55）%US
Terminals			Number of conductors		1 or 2
			Conductor cross-section		6～16mm²
			Solid wire cross-section		6～16mm²

7. Outline and Mounting Dimensions

QNC(QNJY)-5022

8. Wiring Diagram

QNC(QNJY)-1822/2522/3222//4022/5022/6522/7522

9. Ordering Information

■ Please specify the full name, model, control coil voltage and type (AC/DC), and order quantity of the contactor. Example: QNC(QNJY)-25 AC110V 50Hz, 20 units; This indicates a silent AC contactor with a rated operational current of 25A, main contacts 3 Normally Open, auxiliary contacts 2NO+2NC, coil control voltage AC110V, 50Hz, order quantity 20 units. ■ Products with special control voltage specifications can be specially ordered upon user request.

相关商品