Overview
The Miller 222736 rheostat is a precision variable resistor rated at 150 watts and 15 ohms, engineered for current control in Miller welding systems. Also referenced as part number 222996, this Ohmite-style rheostat features a ceramic resistance element and is designed for demanding welding environments. The unit handles 3.16 amps and provides smooth, dependable adjustment for arc welding equipment.
Key Features
- 150-watt power rating ensures reliable performance in high-load welding applications
- 15-ohm resistance value for precise current control and arc stability
- 3.16-amp rated current capacity for safe operation under typical welding loads
- Ceramic disc construction with acid and alkali resistance for extended service life
- Heat-resistant materials and thermal stability for continuous-duty operation
- Flame-retardant resin coating protects wound resistance wire and improves heat dissipation
Technical Specifications
- Resistance: 15 ohms
- Power Rating: 150 watts
- Current Rating: 3.16 amps
- Construction: Ceramic disc with resistance alloy wire
- Insulation: Flame-retardant resin coating
- Voltage Rating: 300 volts
- Mounting Style: Panel-mounted potentiometer
- Environmental Rating: Acid and alkali resistant, moisture-proof
- Condition: New in box
- Manufacturer: Miller Electric (Ohmite component)
Typical Applications
The Miller 222736 rheostat is used in various arc welding and generator systems for current adjustment and remote control functions. Common applications include:
- Miller SRH series (SRH-222, SRH-333, SRH-444, SRH-555, SRH-666) welders
- Miller MP series (MP-30, MP-30E, MP-45, MP-65, MP-65E, MP-75) welding machines
- Miller Big Blue 500D and 600X portable generator-welders
- Miller Dialarc series welding equipment
- Remote current control panels and accessory kits
Compatibility & Replacements
Compatible With
- Miller SRH-222, SRH-333, SRH-444, SRH-555, SRH-666 welders
- Miller MP-30, MP-30E, MP-45, MP-65, MP-65E, MP-75 welding machines
- Miller Big Blue 500D and Big Blue 600X portable generators
- Miller Dialarc series welding equipment
- Standard 300-volt AC/DC welding control circuits
Replaces / Drop-In Replacement For
- Miller 222996 (direct equivalent)
- Miller 030653 (interchangeable, minor modification may be required)
- Miller 030041 (interchangeable with possible hole adjustment in handle)
Works With
- Miller remote current control kits and panels
- Standard welding machine control circuits and harnesses
- Miller original equipment and aftermarket welding accessories
- Field-wired welding power supply configurations
