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Tape wrapping type capacitor for welding machine (MKP-DW series)

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Inverter welder capacitors

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Product Introduction

Product features

■ Small equivalent series resistance, can withstand large ripple current

■ Low self-inductance and low temperature rise, resulting in long life

■ Dry structure, solid epoxy encapsulation

■ Electronic insulation tape wrapping, simple and convenient mounting bracket

■ Low loss factor

■ High ripple current

Note .

Please contact us for other electrical capacity, size and performance parameters requirements.

Typical Applications

■ Capacitors for welding machines are suitable for filtering and straightening circuits of welding machines, and can also be used in other power electronics.

Performance Parameters

Reference Standards	IEC61071 GB17702
Rated voltage	700VDC
Rated capacity (general specifications)	30uF，60uF 100Hz @ +25℃
Electric capacity deviation	±5 %（J） ±10 %（K）Other deviations are optional @ 100Hz @+25℃
Operating temperature range	-40℃ ～+85℃
Storage temperature range	-40℃ ～+85℃
Loss Factor (DF)	tgδ≤0.0025 @ 1KHz @ +25℃
Insulation Resistance (IR)	Typical value (Ris x C): ≥5000S Temperature. : +25 °C @ 1min & Test voltage: 100 Vdc
Dielectric strength (Ut-t)	1.5Un duration 10S
Electrode to shell voltage intensity (Ut-c)	2500VAC 2秒 @+25℃ 50/60Hz
Life expectancy	100,000hours at Un and Th≤ 70°C
Dielectric materials	Metallized polypropylene films
Electrode lead-out	4 square copper core flexible wire (single pole 2, lead length optional)
Outer protective surface/enclosure	White electronic insulating tape wrap (optional with mounting bracket)
Internal filling material	Insulation filler adhesive (UL94- V0)
Note: If the altitude of use exceeds 2000m, the effect of convection cooling and external insulation should be considered.

Outline drawing

电力电子 14-1.png

MKP-DW Un=700VDC Cn= 30~60μF （General specifications）
Capacitor code	C	Un	D	H	P	L
Capacitor code	μF	VDC	mm	mm	mm	mm
MKP-DW306J700VL44W44	30	700	45	43	25	400
MKP-DW606J700VL44W44	60	700	54	53	25	400

Selection Notes:

MKP-DW 306 J 700V L44 W44

------ --- --- --- ---- -----

∣ ∣ ∣ ∣ ∣ ∣------------- Indicates that the lead is a 4-square flexible wire with a total of 4 strips at both ends

∣ ∣ ∣ ∣ ∣ ------------------ Capacitor length: L=44mm

∣ ∣ ∣ ∣ ------------------------Rated voltage: Un=700VDC

∣ ∣ ∣ ------------------------------Capacitance tolerance: J(±5%), K(±10%)

∣ ∣------------------------------------Rated capacity: Cn=30 uF

∣-------------------------------------------Filter capacitor (DW for type)

Different parameters can be designed according to customers' requirements. For more choices of AC/DC filter capacitor types, please refer to other specifications of metalized film capacitors.

- Tape wrapping type capacitor for welding machine (MKP-DW series)

None

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