ESAB SR-B 17, Instruction Manual

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3 TECHNICAL DATA
0463 697 001 - 10 - © ESAB AB 2021
12 kV
113 V
Specification of the torch cooling circuit
(for water cooled torches only)
• min. water pressure: 2.5 bar
• max. water pressure: 4.0 bar
The necessary cooling power is dependent of the application, the welding parameters and
the length of the torch. Sufficiency of available cooling power can be verified by measuring
the return temperature of the cooling fluid. If the return temperature is above 60 °C (140 °F),
the cooling power should be increased or the welding current should be reduced.
Recommended minimum values for cooling power and coolant flow rate
Welding current /
Torch length
Up to 300 A DC /
210 A AC Up to 450 A DC /
315 A AC Up to 500 A DC /
350 A AC
4 m 1.0 kW / 1.0 l/min 1.2 kW / 1.2 l/min 1.6 kW / 1.4 l/min
8 m 1.6 kW / 1.2 l/min 2.0 kW / 1.4 l/min 2.5 kW / 1.7 l/min
For other application parameters or longer cables, refer to additional documents that may
have been included with your torch.
CAUTION!
Return temperatures of more than 60 °C can cause damage or destruction of the
torch. The cooler must always be filled with sufficient cooling liquid, refer the user
manual of the cooling unit. In case of a high thermal load on the torch, use a cooler
with sufficient capacity. Use only special cooling fluid containing corrosion inhibitors
for welding torches. We recommend using ESAB CoolingFluid.
Duty cycle
The duty cycle refers to the time as a percentage of a ten-minute period that you can weld or
cut at a certain load without overloading. The duty cycle is valid for 40 °C (104 °F), or below.
Protection class
The torches protection class machine side (EN 60 529) IP3X
Enclosure class
The IP code indicates the enclosure class, i.e. the degree of protection against penetration
by solid objects of 2.5 mm Ø and greater. Omitting second characteristic numeral.