Overview

FEATURES

Durability is a major feature of the 1NO1NC DC contactor, as it is made of high-quality materials with excellent wear and corrosion resistance. This durability makes it suitable for long-term use in harsh environments, where dust, moisture and extreme temperatures can affect the performance of smaller components. By investing in reliable contactors such as the 1NO1NC, businesses can ensure that their systems remain operational and efficient for a long time, reducing the need for frequent replacement and maintenance.

The 1NO1NC DC contactor is designed to be easy to install and maintain. Its compact design combined with standardized wiring terminals allows for quick and straightforward installation. This user-friendly approach not only saves time during the setup process, but also facilitates easier maintenance in the future. Technicians can quickly access the contactor for inspection or repair, ensuring the system remains in optimal working condition.

1NO1NC DC contactors are an indispensable component in modern electrical systems, offering a range of benefits that enhance functionality, safety and efficiency. Their flexible control capabilities, safety features, space-saving design and durability make them a top choice for engineers and technicians across a wide range of industries. As technology continues to evolve, the importance of reliable and efficient components like 1NO1NC DC contactors will only grow, cementing their place as a cornerstone of contemporary electrical engineering.

SAYOON MODEL IMPLICATION

CZWH	100A	-S	-C	-K	-M	-□	/24V
1	2	3	4	5	6	7	8

1	Product type
2	Rated current
3	Auxiliary switch: None-Without auxiliary switch; S-With auxiliary switch
4	Magnetic blow-out
5	Magetic holding structure: K-Two joint magnetic retention (Single coil, Two joint self-locking); 2K-Three joint magnetic retention (Double coil, Three joint self-locking)
6	Mounting bracket type: M-Horizontal (default); L-One vertical; 2L-Two vertical; X-Oblique; 2N-Rear
7	Other function codes: l-With suppressor diode; R-With pre-charged resistance; CO-Continuous; IN-Intermittent
8	Coil rated voltage: 12V, 24V, 36V, 48V, 60V, 72V etc.

Uses

This product have one normally open and one normally close contact, for electric vehicles, telecommunication equipment, engineering machinery, car batteries, electric forklift trucks, trains, ships, electronic control systems such as uninterruptible power supply.

Technical Parameters: (Version 1.44)

SAYOON Product Type	CZWH100A
Contact form	1 NO 1 NC
Coil Rated voltage (DC V)	6V,12V,24V,36V,48V,60V,72V,84V,120V,150V,220V etc.
Contact voltage (DC V)	≤80V
Rated load current of contact 48V circuit (DC-1)	100A
Typical voltage drop across contacts per 100A	≯80mV
The cooling pull-in voltage at (20±5)℃ (V)	≯70%
The cooling drop-out voltage at (20±5)℃ (V)	≯35%,≮5%
Working voltage range of 40℃ coil	0.8-1.2Us
Drop-out time (n/o contacts to open)	40ms
Pull-in time (n/o contacts to close)	12ms
Maximum bounce time for contact connection	10ms
Maximum bounce time for contact disconnection	3ms
Insulation resistance	20MΩ
Electric strength to resist	50Hz/60Hz 1000VAC 1minute
Typical fault currents which can be ruptured	800A/5ms at 48V DC
Coil power (W)	14-23
Temperature rise of coil (K)	≤80
Temperature rise on outgoing terminal (K)	≤65
Electrical life	20,000 times
Mechanical life	300,000 times
Work specification	Continuous or Intermittent(default)
Contact material	Ag alloy
Load terminal type	M8 Screw
Coil terminal type	6.3mm spade terminals
Auxiliary contact rated load (optional)	2A/48VDC, 5A/24VDC
Normally closed to normally open	7ms
Normally open to normally closed	4ms
Testing organization certification	CE,FCC

Note:As regarding to the different using environments of customers which requires different focus of the functions,and in order to improve the comprehensive properties of our products,sayoon may adjust the coil parameters,temperature rise and so on. The above parameters are for reference only, For details, please refer to the guidelines for selection and use of the SAYOON DC contactor.

Load Characteristic Curve

Installation Diagram

Wiring Diagram

Temperature Curve

Mechanical Ability And Use Of The Environment

Contact lead M8 tightening torque (N.m)	≯9.0 appropriate
Coil lead-out torque (N.m)	≯0.8 appropriate
Ambient temperature	-25~+70℃
Relative humidity	+20℃ 98%
Vibration freq. atthe fixed position	3G, 1～50Hz amplitude 0.5mm
Concussion	(60～100) time/minute、acceleration≤4g
Altitude	2000m
Installation direction	Random
International protection	IP40 (According IEC60947)

Order Instruction

SAYOON Product Type	CZWH100A
U.N.W.	486g
U.N.W.(-C-S-M)	520g
Mounting bracket type	M Horizontal (default), 1L One vertical, 2L Two vertical, X Oblique, 2N Rear

When ordering, please state the following: name, full model, control coil voltage specification, installation frame type, whether with auxiliary contact, order quantity. For example: DC Contactor CZWH100A/24V 100pcs, indicating the load rated current 100A, without auxiliary contact, default mounting bracket, coil control voltage 24V purchase 100pcs. Special voltage specification products, such as user needs can be special order.