Description

Model Explanation

GDCR	7	-250	B	H	-P	W	/XXX
DC Contactor	Design No.	Rated curent (250:250A)	Rated operational voltage (B:12VDC-200VDC;NI: 12VDC-1000VDC)	Auxiliary contact type ( H: with nommally open: C: with normaily closed; Z: with convert, Nil: without )	Coil type (P: Us=12124VDC )	Mounting type ( Nil: Vertical mounting; W: Horizontal mounting )	Customer No. Customized code when customer has special requirements )

Characteristic：

Strong Control Load Capacity:Rated operational voltage 12VDC~1000VDC,rated operational current 250A.
Safe:Fully sealed with epoxy resin,contact and coil will not be oxidized,product performance is not affected by external environment, no arc outbursts,can be worked in explosive and harmful environment.
Reliable:Adopt DC high voltage non-polarity design,the breaking capacity is higher and more reliable,convenient and reliable installation/wiring.
Energy conservation: UsingPWM control technology,effectively control the coil power and action characteristics,more energy saving.
RoHS:All components meet the latest EU RoHS environmental requirements.

Contact Parameter：

Rated operational current le	250A
Rated operational voltage Ue	12~1000VDC
Min.load	1A 12VDC
Main contact type	1SH (SPST NO DM)
Nominal resistance of main circuit	0.2mΩ (@250A)
Main contact mounting	M8 external thread
Connecting torque	10~12 N·m
Max.switching current (more than one cycle)	2500A 320VDC
Max.current	30VDC 2A；125VAC 3A
Min.current	8VDC 100mA
Contact resistance	＜0.15Ω

Coil Parameter

Rated voltage Us	12/24VDC
Operational voltage range	8~36 VDC
Pick up voltage	7~8 VDC
Release voltage	5~6 VDC
Coil power	keeping：2W
Inrush current	3A（0.1s）（@12V）
Holding current	0.17A@12V;0.085A@24V
Close time (@Us)	≤45ms
Release time (@Us)	≤10ms
Bounce time (@Us)	≤5ms

Electrical Characteristic：

Dielectric withstand voltage	DC3110V，AC2200V
Insulation resistance	≥1000MΩ@1000VDC
Nominal insulation voltage UI	1000V

Environmental Characteristics：

Shock	Stability test	196m/s²（20G）
	Strength test	490m/s²（50G）
Resistance to vibration	10~2000Hz，20G
Operating ambient Temperature	-40℃~+85℃
Operating ambient humidity	5%~85%RH
IP grade	IP67 (inner space)
Altitude	≤4000m

Life：

Mechanical life		300,000 cycles
Resistive load life (L/R≤1ms）		see next page
Capacitive load life（RC＝1ms，only connected）	450A	50,000 cycles

Note: For capacitive load life, When the contactor is used to control the main circuit of charge and discharge, the pre-charge circuit should be added.if there is no pre-charging path, a transient large current will be generated when the contactor closes, which may cause the contactor to stick.

Other:

Weight	＝104g
The cross-sectional area of an external conductor	≥6mm²

GDCR7-250 250A DC Contactor Relay