Spot welding

Ok i have gone and bought myself a new sip spotmatic m2 spotwelder which has arrived this morning, however in the manual for it it says about it only being suitable for non domestic ie not for use at home, so i am confused here, 240v single phase 50hz whats the problem? heres the spec btw  8)

This spot welder comes with a timer and compensation circuit which allows the welding of Oxidised,Zinc coated or Painted residued sheet.
Welds 2mm + 2mm Includes standard arms. Portable,reliable & easy to operate.Maximum simplicity at minimum cost.


An excellently reliable professional range of spot welders, the Spotmatic range provides fast, consistent spot welds with minimal operator fatigue. All models share an impressive list of common features including fully adjustable tip pressure, light and extremely well balanced construction and each unit is tested at 4000v AC to ensure safety.

# High output - 5750 amps maximum welding current providing welding thickness versatility.
# Heavy duty transformer - Providing 2KVA @ 50% duty cycle.
# 2mm plate welding capability - At a rate of 60 spots per hour for 2+2 sheet mild steel.
# Superb welding speed - Will weld 1.2mm sheet mild steel (1.2+1.2) at a rate of 260 spots per hour.
# Fully adjustable tip pressure - For greater material and thickness versatility.
# Excellent balance - Facilitating use and minimising user fatigue.
# Large arm clearance - Provides a 96 mm arm clearance facilitating welding access.
# Lasting quality - Design, construction and componentry promote reliability and longevity.
# Single phase operation - Operates from 20 amp (delayed action) fuse.
# 1 year warranty - For peace of mind.
# Arms included - Supplied with general purpose standard arms.
# Adjustable welding time - Manually adjustable for greater weld penetration.


Anyone else have one of these welders? do you have problems on the supply at home? it is going to need a 16a socket and 20a trip but i will just stick a seperate circuit in the garage for that, i decided to pay the hundred extra because it can weld zinc coated steel which sounded ideal for sills etc where you can get to to paint later on

hi , i dont have a spot welder , but i,ve just finished wiring up my mates garage , and i put in seperate sockets for the welder and compessor
the welder i wired up to a 20 amp breaker and we,ve had no problems with that . but most of the time it will run of a normal socket , if you,ve got a seperate breaker for your garage , just give it ago before installing new wiring , the worse that can happen is that you'll blow a fuse or the breaker . cheap that rewiring if it works

Do you know it's now against the law to make changes to electrical instalations in homes without corect certification?

I hope your putting in a cable to the curcuit breaker with enugh capacity, either 30A Ring ( 15A cable ) or 30A Spur on 30A cable. And the same to the outlet.

TT