CZQH300A-2T DPDT Reversing DC Contactor

CZQH300A-2T DPDT DC contactor is a 300A rated current double-pole double-throw DC contactor with two sets of independent contacts (including normally open and normally closed contacts). It is suitable for high current DC circuit control, compact structure, high reliability, widely used in electric vehicles, energy storage systems and industrial equipment, with excellent electrical insulation and high temperature resistance, suitable for harsh environments.

product details

FEATURES

Ideal for electric forklifts, battery vehicles, tractors, excavators, brick machines, cleaning vehicles, automotive air conditioning, communication and uninterruptible power supplies, and electroplating electronic control systems. Features include compact size, high load capacity, durability, and easy maintenance, making it user-favored. Complies with JB2286-78, JB3974-85, YD/585-92, YD/T512-92 standards, rigorously tested to ensure reliability and meet user demands.

SAYOON MODEL IMPLICATION

CZQH	300A	-2T	-□	-□	/24V
1	2	3	4	5	6

1	Product type
2	Rated current
3	Circuit structure: DPDT
4	P-With protective cover(default)
5	Working system: CO-Continuous; INT-Intermittent


6	Coil rated voltage:12V, 24V, 36V, 48V, 60V, 72V etc.

USES

This product have a switching phase contacts, for using in DC circuits and can be powered with battery of recitified power. They perform power switching funcition for power switching operations of traction drives as well as pump motor and other electric vehicles.

TECHNICAL PARAMETERS: (Version 1.45)

SAYOON Product Type	CZQH300A-2T
Contact form	Convert the two groups (DPDT)
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)	300A
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)	30ms
Pull-in time (n/o contacts to close)	6ms
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	1500A/5ms at 48V/DC
Coil power (W)	30-50
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
Contact material	Ag alloy
Load terminal type	M8 Screw
Coil terminal type	M4 Screw
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 M4 tightening torque (N.m)	≯1.2 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	CZQH300A-2T
U.N.W.	3207g
Package QTY.	10 PCS
Mounting bracket type

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 CZQH300A-2T/24V 100pcs, indicating the load rated current 300A, without auxiliary contact, default mounting bracket, coil control voltage 24V purchase 100pcs. Special voltage specification products, such as user needs can be special order.