Home >> Products >>High-Performance, Low-Power Consumption DC Contactor >>QNZ1-QW Series Micro-power DC Contactor >> QNZ1-100QW DC Contactor

Products

DC Contactor

High-Performance, Low-Power Consumption DC Contactor

QNZ1-QR Series DC Contactor with Built-in Resistor, Micro-power Type

QNZ1-QW Series Micro-power DC Contactor

High-Voltage Contactor

Arc-less AC Contactor

Elevator-Specific Contactor

Relays

Anti-Voltage Sag Contactor Series

DC-Operated AC Contactor

Product Detail

QNZ1-100QW DC Contactor

Rated Load Current (A): 100 Rated Load Voltage (VDC): 144 Rated Insulation Voltage (VDC): 300 Coil Control Voltage (V): DC 12 / 24 / 48 / 60 / 72 / 80 / 96 / 144 Coil Operating Power Consumption (W): < 7.2 Coil Connection Method: Plug-in Electrical Life (operations): 1 × 10⁴ Mechanical Life (operations): 10 × 10⁴ Mounting Style: Straight plate / Bent plate Auxiliary Contacts: Null

Product Description

1. Application

This product is primarily used for power switching control in DC power systems for construction machinery, electric forklifts, electric winches, electric vehicles, etc. Compliance Standards: IEC/EN 60947-4-1, GB/T 14048.4. Product Certification: RoHS.

2. Coding

Figures	Coding
1	Enterprise Code: QN represents Nanjing Quanning Electric Co., Ltd.
2	Z: DC Contactor
3	1：Product series
4	Basic Specification Code: the rated current (Ie)
5	Q indicates micro-power sealed structure.
6	Default: None, indicates one normally open main contact. B indicates one normally closed main contact.
7	Default: None. Can be added with L-type mounting bracket or C-type mounting bracket.
8	Coil Voltage Us
9	Default: W, Product Code

3.Key Points

▲ Coil with ultra-low power consumption technology, featuring high efficiency, energy saving, and surge protection. The coil itself does not generate heat. ▲ Sealed structure design, Protection Class IP65, offering strong dustproof and waterproof performance. ▲ Rare earth strong magnetic arc extinguishing, long electrical lifespan, strong anti-welding performance, safe and reliable. ▲ Complies with EU RoHS environmental directive and national energy-saving and environmental protection requirements.

4. Operating and Installation Conditions

▲ Ambient Temperature: -40°C to +85°C. ▲ Ambient Humidity: Maximum relative humidity 85%. ▲ When the installation site altitude exceeds 2000 meters, derate by 5% for every additional 1000 meters. Maximum altitude should not exceed 5000 meters. ▲ Sinusoidal sweep frequency vibration at the mounting point: 10–500 Hz (Frequency 10–50 Hz, Amplitude 2.5mm; 50–200 Hz, Amplitude 0.16mm; 200–500 Hz, Acceleration 50 m/s²). ▲ Pollution Degree: Pollution Degree 3. ▲ Installation Orientation: Horizontal or vertical. ▲ Mounting Method: Screw mounting. ▲ Applicable Duty Cycle: Uninterrupted duty, Intermittent periodic duty.

5. Technical Parameters

This series complies with standards: IEC/EN 60947-4-1, GB/T 14048.4.

Specifications Parameters		QNZ1-100QW
Contact Configuration		1P (NO or NC)
Rated Insulation Voltage Ui (V)		300
Rated Operational Voltage Ue (VDC)		144
Rated Operational Current Ie (A) DC-1		100
Contact Voltage Drop Ud (mV)		≤80
Polar Impedance Z (mΩ)		≤0.4
Min. Connectable Load		24V 200mA
Control Coil	Coil Voltage Us (VDC)	12、24、48、60、72、80、96、144
	Pick-up Voltage (VDC)	0.85Us～1.10Us
	Drop-out Voltage (VDC)	0.10Us～0.75Us
	Pick-up Current (A)	2～3
	Holding Current (A)	＜0.05
	Pick-up Power (W)	24～432
	Holding Power (W)	＜7.2
	Recommended Power Supply	Switching power supply; PWM modulated power supply with 100% duty cycle; Rectifier-filtered power supply with ripple factor <5%
	Optional Power Supply (Customized)	DC square wave power supply; Rectifier-filtered power supply with ripple factor >5%
Electrical Life	DC-1, Ue, Ie (10k operations)	1
Operating Frequency (operations/hour)		300 (1 operation every 12 seconds, on/off interval not less than 0.5s)
Mechanical Life (10k operations)		10
Overload Performance (A)		1.5Ie/30min；3Ie/1min；5Ie/10s；8Ie/1s；
Operate Time	Pick-up Time (ms)	≤300
Operate Time	Drop-out Time (ms)	≤50
Main Contact Wire or Busbar Cross-sectional Area (mm²)		35
Insulation Resistance (MΩ)		≥5（500VDC）
Dielectric Strength	Between Coil and Contacts	AC 1500V/1Min, no breakdown or flashover, leakage current ≤5mA
Dielectric Strength	Between Open Contacts	AC 1500V/1Min, no breakdown or flashover, leakage current ≤5mA
Temperature Rise	Coil (at Us)	≤15K
	Terminal (at Ie)	≤65K
	Housing	＜60K
Enameled Wire	Temperature Resistance	≤180℃
	Insulation Class	Class H
	Dielectric Strength (Enamel to Ground)	AC 1000V/1Min, no breakdown or flashover, leakage current ≤5mA
Weight (kg)		0.24

6. Outline and Installation Dimensions (Same for NO and NC Types)

QNZ1-100QW Outline and Installation Dimensions

QNZ1-100Q+L W Outline and Installation Dimensions

QNZ1-100Q+C W Outline and Installation Dimensions

7.Wiring Diagram (Positive and Negative Poles Must NOT Be Reversed)

QNZ1-QW QNZ1-QB W

8. Ordering Information

When placing an order, please specify: ■ Contactor model and name; ■ Coil voltage; ■ Order quantity; ■ Special requirements;

Figures	Coding
1	Enterprise Code: QN represents Nanjing Quanning Electric Co., Ltd.
2	Z: DC Contactor
3	1：Product series
4	Basic Specification Code:the rated current (Ie)
5	Q indicates micro-power sealed structure.
6	Default: None, indicates one normally open main contact. B indicates one normally closed main contact.
7	Default: None. Can be added with L-type mounting bracket or C-type mounting bracket.
8	Coil Voltage Us
9	Default: W, Product Code

Example: QNZ1-80Q DC24V W 100 units; Meaning: 100 units of micro-power DC contactor, main contact 1NO, current 80A, coil voltage DC24V.

9. Usage Precautions

◆ The product coil is polarized (A1 is positive, A2 is negative). The main circuit with magnetic blowout is polarized (L1 is positive, L2 is negative); without magnetic blowout, it is non-polarized. The positive and negative poles must NOT be reversed, as reversal can affect the load-breaking lifespan. ◆ The energy-saving coil has a relatively large starting current at initial operation, lasting between 100–120ms depending on the product's characteristics. Therefore, the driving power for the contactor must be greater than the coil power, and the operating frequency must not exceed the rated value. Otherwise, it may affect the normal starting of the DC contactor or even burn out the energy-saving module, rendering the contactor inoperative. ◆ The product has a built-in coil energy-saving module; no additional PWM or other energy-saving modules are required. If PWM pulse signals are still used to control the coil, the PWM output voltage must be set to 100%, otherwise it may affect the reliable operation of our contactors. Step-type power supply mode is recommended. ◆ When using more than one connection wire at a power terminal, ensure the main power wire is closest to the contactor's main circuit connection point, followed by smaller current wires on top, then the washer, spring washer, and nut. Incorrect connection order or loose connections can cause severe overheating and melt the cable insulation.