◆Introduction
　　The KDHc electric welding machine switch applied to AC 50Hz or 60Hz,440V and below 200A and below,forcontrol of welding machine and control of main circuits as well.
◆Technical parameters

Description			KDHc-20	KDHc-25	KDHc-32	KDHc-40	KDHc-63
Rated thermal current	ITH	A	20	25	32	40	63
Rated workig voltage	Ue	V	240/440	240/440	240/440	240/440	240/440
Rated working current	Le
AC-21A		A	20	25	32	40	63
Operation
non-load			8500	8500	8500	8500	8500
load			1500	1500	1500	1500	1500
Total			10000	10000	10000	10000	10000
frequency			120	120	120	120	120

◆Dimensions and installation

Deiscription	Diemnsions(mm)			Installation(mm)
	Lmax	Imax	A	E	F	G	G1	G2
KDHc-20	25+12n	38	□48±0.31	32±0.16	36±0.31	Φ9.5	Φ3.5	Φ4.5
KDHc-25	34+13.3n	37	□64±0.37	36±0.31	48±0.31	Φ9.5	Φ4.5	Φ4.5
KDHc-32	34+13.3n	37	□64±0.37	36±0.31	48±0.31	Φ9.5	Φ4.5	Φ4.5
KDHc-40	34+17.5n	37	□64±0.37	36±0.31	48±0.31	Φ9.5	Φ4.5	Φ4.5
KDHc-63	34+17.5n	37	□64±0.37	36±0.31	48±0.31	Φ9.5	Φ4.5	Φ4.5