Comparison Dnipro-M SAB-258D vs Dnipro-M SAB-258DP

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	Dnipro-M SAB-258D	Dnipro-M SAB-258DP
	Outdated Product	Outdated Product
all specs only differences
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Main	The VRD function is to reduce the open circuit voltage. Operation at reduced voltage (up to 160 V).	Operation at reduced voltage (up to 160 V)
Type	inverter	inverter
Welding type	MMA	MMA
Specs
Welding current	DC	DC
Input voltage	230 V	230 V
Minimum input voltage	160 V	160 V
Power consumption	5.5 kW	5.5 kW
Open circuit voltage	65 V	65 V
Min. welding current	20 А	20 А
Max. welding current	250 А	250 А
Duty cycle	80 %	80 %
Max. electrode size	5 mm	5 mm
More features	Hot Start Anti-Stick VRD digital display	Hot Start Anti-Stick VRD digital display
General
Protection class (IP)	21	21
Insulation class	H
Dimensions (HxWxD)	200x120x290 mm	200x120x280 mm
Weight	3.7 kg	3.8 kg
Added to E-Catalog	september 2017	may 2017

Insulation class

The insulation class determines the degree of resistance of the insulating materials used in a particular device to heat. To date, welding machines use materials mainly of the following classes:

B — have a resistance limit of 130 °C;
F — 155 °C;
H — 180 °C.

Note that the vast majority of modern welding machines have electronic overheating protection, which turns off the device long before reaching the insulation resistance limit. Therefore, this parameter will be relevant only in an emergency, when the built-in protection fails. Nevertheless, it fully allows you to assess the safety of using the device — the higher the insulation class, the more likely it is to notice dangerous overheating in time (for example, by a characteristic smell) and turn off the device before damage occurs.