CZW200A Normally Open DC Contactor

Durability is another key feature of normally-open DC contactors. Manufactured from high-quality materials, these contactors offer excellent resistance to wear and corrosion. This makes them ideal for long-term use in harsh environments where moisture, dust, and other contaminants can affect the performance of lower-quality components.

product details

FEATURES

The durability of the normally open DC contactor is not only reflected in the choice of its materials, but also in its design and manufacturing process. High-quality contactors can withstand frequent operations and extreme working conditions, reducing failure rates and maintenance costs. In many industrial applications, such as chemical plants, mines, and outdoor equipment, contactors often face harsh environmental challenges, so it is crucial to choose durable components. By investing in normally-open DC contactors, operators can ensure their systems remain efficient and functioning properly under challenging conditions.

SAYOON MODEL IMPLICATION

CZW	200A	-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
7	Other function codes: l-With suppressor diode; R-With pre-charged resistance; U-Increase rated current 300A; CO-Continuous; IN-Intermittent
8	Coil rated voltage: 12V, 24V, 36V, 48V, 60V, 72V etc.

Uses

This product have one normally open 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 1.47)

SAYOON Product Type	CZW200A
Contact form	1 NO
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)	200A
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)	10ms
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	1000A/5ms at 48V/DC
Coil power (W)	12-18
Temperature rise of coil (K)	≤60
Temperature rise on outgoing terminal (K)	≤65
Electrical life	20,000 times
Mechanical life	300,000 times
Work specification	Continuous (default) or Intermittent
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
Testing organization certification	CCC,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	CZW200A
U.N.W.	732g
Package QTY.	40PCS
Mounting bracket type	M Horizontal (default), 1L One vertical, 2L Two vertical

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 CZW200A/24V 100pcs, indicating the load rated current 200A, without auxiliary contact, default mounting bracket, coil control voltage 24V purchase 100pcs. Special voltage specification products, such as user needs can be special order.