ARROW 3370
Multi-voltage industrial MMA / TIG inverter welder
350 A of ARROW arc, on any supply
- 350A
- Max current
- 220–440V
- Single / three phase
- 1/4"
- Max electrode
01 / Overview
350 A of ARROW arc, on any supply
The ARROW 3370 is the big MMA/TIG power source of the ARROW series: up to 350 A on 220, 400 or 440 V supply, single or three phase. One machine for the workshop, the site and the plant.
It delivers 180 A at 100% on 220 V single phase, 250 A at 100% on 220 V three phase and 350 A at 70% on 440 V three phase, with every type of electrode from 1/16" to 1/4".
It shares the ARROW DNA: PULSED ARC technology, SOFT, RUNNER, PULSE JET, SONIC, DEEP and PLAIN synergic MMA programs and manual pulsed-arc programming in TIG, ideal for stainless and carbon steels. All managed from a full-colour TFT display with HYPER PULSE control.
Model
ARROW 3370
Reference
HRA-337
Family
Stick MMA
Sheet / Rev.
01 / A
Data from the official HELIOS datasheet. Subject to continuous improvement.
02 / Technical sheet
Technical sheet
Current range
10–350A
100%
Duty cycle
95V
Open-circuit voltage
Weight
9kg
Electrical
7- Current range
- 10 – 350 A (MMA / TIG DC)
- Current at duty cycle
- 220 V 1PH: 180 A @ 100% · 220 V 3PH: 250 A @ 100% · 440 V 3PH: 350 A @ 70%
- Output current
- DC
- Input power
- 220 / 400 / 440 V · 50/60 Hz · 1PH / 3PH
- Duty cycle
- 70%
- Open-circuit voltage (OCV)
- 95 V
- Voltage reduction device (VRD)
- ✓
Process & control
5- Processes
- MMA / TIG DC Lift Arc
- Electrode diameter
- 1/16" – 1/4"
- Arc control
- HYPER ARC
- Control
- HYPER PULSE
- Display
- TFT full colour
Physical & environment
2- Weight
- 9 kg
- Protection rating
- IP21S
Other data
4- Quick connector
- 35/50 · 13 mm (1/2")
- Adjustable Hot Start
- ✓
- Adjustable Arc Force
- ✓
- Generator compatible
- ✓
PDF datasheet
Take the full datasheet with you
A PDF with the photo, every figure and this machine's QR code, in HELIOS's own design and with its own document ID so you always know which revision you are holding.
Knowledge centre
Technical guides for this machine
04 / Related
