SR6 Starter DC Contactor

The SR6 Starter DC Contactor is a durable, high-performance component designed for controlling high-power DC circuits. Built with robust materials, it ensures reliable operation in demanding environments like industrial machinery, electric vehicles, and renewable energy systems. Its compact design, efficient electromagnetic coil, and safety features like arc suppression and overload protection make it ideal for quick, safe, and energy-efficient switching in high-current applications.

product details

FEATURES

This product has normally open contacts and is suitable for starting short-time, high-current loads. It is generally used in motor equipment. The product complies with JB2286-78, JB3974-85, YD/585-92, and YD/T512-92 standards. It has been tested by the manufacturer and relevant units and meets the requirements. After years of use, it has reliable quality and excellent performance, effectively meeting user needs.

SAYOON MODEL IMPLICATION

SR6	/24V
1	2

1	Product type
2	Coil rated voltage:12V, 24V, 36V, 48V, 60V, 72V etc.

USES

The product has one normally open contact, which is suitable for short-time high current load start-up. It is usually used for automobile start-up and warm air drive.

TECHNICAL PARAMETERS: (Version 1.34)

SAYOON Product Type	SR6
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)	150A
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)	20ms
Pull-in time (n/o contacts to close)	30ms
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)	20-30
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	Intermittent
Contact material	Alloy
Load terminal type	M6 Screw
Coil terminal type	M4 Bullet head
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 M10 tightening torque (N.m)	≯4.5 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	SR6
U.N.W.	219g
Package QTY.	60 PCS
Meas.(cm)	53.521.519.5
Mounting bracket type	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 SR6/24V 100pcs, indicating the load rated current 150A, without auxiliary contact, default mounting bracket, coil control voltage 24V purchase 100pcs. Special voltage specification products, such as user needs can be special order.