250A High Voltage DC Contactor, 12V/24V Coil

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$179.54

Ex Tax: $179.54

Stock: In Stock
Model: RDDLZ-DCCON-HV250
Weight: 1.00
SKU: RDDLZ-DCCON-HV250

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Short Description

Coil Rated Voltage

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Features

DC 12-900V rated load voltage of contact circuit.
SPST-NO of contact form, 12 volt, 24 volt coil for selecting.
Main contact voltage drop at 250A, not above 100mV.
The connection of contact and coil need to be nonpolarity.
Efficient coil, retentive power is only 2-2.3W, counter electromotive force is 0V.
The joint way of the coil is very convenient.
The coil has no counter force of electromagnetism.
Compare to the similar products, this product is smallest and lightest.

Specifications

Basics	Model	RDDLZ-ADH250
	Dimension	80 x 65 x 74 mm
	Weight	480 g
Main Contact Parameters	Contact Form	1 NO
	Leading-Out	M10 Internal thread
	Rated Load Current	250 A
	Rated Load Voltage	12 – 900V DC
	Maximum Switching Current	2000A 320V DC (≥1 times)
	Maximum Switching Power	640 kW
Coil Parameters	Standard Type Voltage	12/24V DC
	Work Voltage	8~36V
	Max Voltage	36 V
	Coil Resistance	3.1Ω
	Average Holding Current	0.14 A
	Steady State Power	1.7~2 W
	Actuation Time	≤30 ms
	Release Time	≤10 ms
	Bounce Time	≤5 ms
Mechanical Specification	Stability	196 m/s²(20G)
	Strength	490 m/s²(50G)
	Vibration	80 ~2000Hz 98m/s²(20G)
	IP Grade	IP67
Environment	Operating Temperature	-40℃~85℃
Environment	Operating Humidity	5~95% RH

Installation Diagram (Unit: mm)
High Voltage DC Contactor Coil Schematic

Details

Tips: The contactor makes large noise when it works, how to solve?
Possible causes of the fault

The contactor works in high temperature for a long time.
The contactor is frequently operated.
Contact over range is too small.
The contact surface has impurities or is not smooth.
Pressure of contact spring is too small.
The three phase contact can't contact synchronously; short circuit at the load side.

Maintenance method

Measure with a multimeter whether the power supply voltage of a contactor coil is lower than the required rated voltage, if lower, find causes on the circuit and adjust the voltage to the normal value.
Grind the suction face of the contactor with fine sand paper, clean up the sundries, spray few oil on the end face when necessary and then reassemble.
Reassemble and repair the contactor's action mechanism.
Weld the short-circuit ring and connect again.
Replace the contactor's iron core.
Reset the spring pressure of the contactor to a proper value.

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