Miller Electric SRH-444 User Manual

Stick Welding

Power Source

Issued April 2006 • Index No. DC/7.0

Processes

Stick (SMAW)
Air Carbon Arc (CAC-A)

Cutting and Gouging

Input Power 3-Phase Power
Rated Output 400 A at 36 VDC, 60% Duty Cycle
Weight 784 lb (356 kg)

Heavy Industrial Applications

Steel Erection and Pipe Welding
Tank/Pressure Vessel Fabrication
Maintenance/Repair/Construction
Shipbuilding, Refineries, and Foundries
Chemical and Steel Manufacturing Facilities

Miller Electric Mfg. Co.

An Illinois Tool Works Company
1635 West Spencer Street
Appleton, WI 54914 USA

Web Site

www.MillerWelds.com

International Headquarters

Phone: [phone]
USA FAX: [phone]
Canadian FAX: [phone]
International FAX: [phone]

Quick
Specs

The Power of Blue®.

Infinite amperage control allows
precise weld output adjustment; you
always get the exact heat you need to
produce a better weld.

Superior 6010 Stick electrode
performance offers reliable puddle

control with open root, full-penetration
welding.

Control-circuit overload breaker allows
for quick resetting and eliminates the
need to keep fuses on hand.

High/low output terminals conveniently let
you choose between two different amperage
ranges for improved output control.

Two wide amperage ranges for fine
adjustment allows exact control of

weld amperage.

Remote amperage control
receptacle can easily connect

remote amperage control.

Easy-to-install running gear has
large wheels for smoother mobility.

Built-in Hot Start

™

makes it easy to
start difficult-to-start Stick electrodes,
such as E6010 and E7018.

Power source is warranted for 3 years, parts and labor.

Original main power rectified parts are warranted for 5 years.

Superior arc welding performance

provides outstanding Stick welding and
eliminates the need for rewelds.

SRH-444

Specifications

(Subject to change without notice.)

Rated Output

400 Amps at 36 VDC,
60% Duty Cycle

Welding
Amperage Range

30–280
50–500

Net
Weight

784 lb
(356 kg)

Amps Input at Rated Output, Three-Phase, 60 Hz
208 V 230 V 460 V 575 V KVA KW

89 80 40 32 31.9 19.6

Dimensions

H: 30-1/4 in (768 mm)
W: 22-1/2 in (572 mm)
D: 35-3/4 in (908 mm)

RHC-3 Remote Control
#040 056 20 ft (6 m)
#195 354 100 ft (30.5 m)

Remote hand amperage
control for all SRH models.
Supplied with a cable
and plug.

No. 20 Running Gear
#041 581

Four 8 in (203 mm) poly/
rubber blend wheels with
30 in (762 mm) towing
handle.

Stick Hook-Up Accessories #173 851

Includes 50 ft (15.2 m) No. 2/0 electrode
cable with electrode holder and lug, and 50 ft
(15.2 m) No. 2/0 work cable with work clamp.

No. 4WA Welding Accessories #040 045

Includes 35 ft (10.7 m) No. 2/0 electrode cable
with electrode holder and lug, 30 ft (9 m)
No. 2/0 work cable with lug, welding helmet
and wire brush.

Voltage-Sensing Wire Feeders

SuitCase™8VS Wire Feeder #194 890
SuitCase™X-TREME™12VS
Wire Feeder #195 500

Lightweight, portable, voltage-sensing
wire feeders include secondary contactor
and gas valve. Require drive roll kit.
See Lit. Index Nos. M/6.4 and M/6.41.

1. Remote Amperage Control Receptacle

2. Remote Amperage Switch

3. Circuit Breaker CB1

4. Power Switch

5. Amperage Adjustment Control

Performance DataControl Panel

Miller Accessories

Ordering Information

Power Source and Options Stock No. Description Qty. Price

SRH-444 #900 751 208/230/460 V, 60 Hz

#900 753 230/460/575 V, 60 Hz

Accessories

RHC-3 Remote Control #040 056 Includes 20 ft (6 m) cable and plug

#195 354 Includes 100 ft (30.5 m) cable and plug

No. 20 Running Gear #041 581
Stick Hook-Up Accessories #173 851 Includes 50 ft (15.2 m) No. 2/0 electrode cable with electrode

holder and lug, and 50 ft (15.2 m) work cable with work clamp

No. 4WA Welding Accessories #040 045 Includes 35 ft (10.7 m) No. 2/0 electrode cable with electrode holder and lug,

30 ft (9 m) No. 2/0 work cable with lug, welding helmet and wire brush

SuitCase™8VS #194 890 See Lit. Index No. M/6.4
SuitCase™X-TREME™12VS #195 500 See Lit. Index No. M/6.41

Date: Total Quoted Price:

Distributed by:

Litho in USA

1

2
3

POWER

ON

OFF

OFF

4

5

900
800
700
600

500
400

300

WELD AMPS

250
200

150

80
70
60
50
40

DC VOLTS

30
20
10
0

0 100 200 300 400 500 600 700 800 900

DUTY CYCLE CHART

RATED OUTPUT

400 AMP

SRH-444

10020 25 30 35 40 50 60 70 80 90

% DUTY CYCLE

VOLT/AMP CURVE SRH-444

A = LOW RANGE

B = HIGH RANGE

B

A

DC AMPS