UltraHeat S/AIR
Light, completely air-cooled units.
No water cooling system required.
Perfect for low temperature applications T<500°F/ 260°C.
SMT models featuring advanced 5” LCD touch screen with multiple programs, temperature control and diagnostics features.
Reliable, modular system, easy to maintain and service.
Flexible, wide range load impedance matching by utilizing multiple transformer ratios and configurable tank capacitance.
Automatic frequency scanning and easy tuning to variety of loads and coils.
Durable design, loaded with safety and diagnostics features.
STANDARD FEATURES
- Output regulation – Voltage, Power, Current
- Limits setting – Current, DC Volts, Output Volts, Power, Frequency
- Compact air -cooled power supply design with automatic fan control
- Operator controls – Selectable: Automatic, Remote or Local
- Multiple user programs and programmable parameters
- Capable of delivering full power in the specified frequency range (see Specifications tables)
- Variable ratio output isolation transformer for load matching of a wide range of loads and coils
- Power control from 1% to 100% in 1% increments
ADVANCED OPTIONS
- Advanced 5” Color LCD touch panel
- Digital I/O Interface board – Remote Start/Stop
- External power control input: 0-10V or 4-20mA
- Temperature monitoring & control with K type thermocouple
- Temperature regulator for standard IR sensor input
- Serial Interface: RS-485
- Data logging and remote diagnostics
- Automation Upgrade Kit – allows the power supply to be powered up remotely when used as part of an automated system
● Standard ○ Optional
| Power Supply Model | SM-2A 0UPT-030-230 | SM-5A 0UPT-030-330 | SMT-2A 0UPT-030-230 | SMT-5A 0UPT-030-330 |
| Output kW | 2.0kW | 4.0kW | 2.0kW | 4.0kW |
| Frequency kHz | 20-100 | 20-100 | 20-100 | 20-100 |
| AC Line Volts (50/60Hz) | 110/230±10% | 110/230±10% | 110/230±10% | 110/230±10% |
| Line Phases | 1 | 1 | 1 | 1 |
| Compact air cooled power supply | ● | ● | ● | ● |
| Auto tuning to variety of loads and coils | ● | ● | ● | ● |
| Control panel | Standard | Standard | 5” LCD Touch | 5” LCD Touch |
| User programs | 5 | 5 | 10 | 10 |
| Digital I/O & Analog Power Control | ○ | ○ | ● | ● |
| Temperature control with IR Sensor and K Thermocouple Input | – | – | ○ | ○ |
| Cycle Energy Monitor | – | – | ○ | ○ |
| Serial Interface: RS-485 | – | – | ○ | ○ |
| Data logging | – | – | ○ | ○ |
| Automation Upgrade Kit | – | ○ | – | ○ |
| Weight Lb (kg) | 11 (5) | 28 (12.5) | 11 (5) | 28 (12.5) |
| Dimensions Inch (mm) WxDxH | 9.8” x 8.5” x 9.3” (250 x 215 x 235) | 14.4” x 10.6” x 12.8” (365 x 270 x 326) | 9.8” x 8.5” x 9.3” (250 x 215 x 235) | 14.4” x 10.6” x 12.8” (365 x 270 x 326) |
| Compatible Heat Stations | HS-4AN | HS-4AN | HS-4AN | HS-4AN |
| Heat Station Model | HS-4AN (1ACC-030-200-02) Air-cooled | HS-1A (1ACC-030-100-00) Air-cooled |
| Cable Length between Power Supply and Heat Station: Std / Max Ft (cm) | 6 (183)/ 30 (914) | |
| Dimensions Inch (mm) WxDxH | 7.3” x 14.2” x 7.1” (185 x 361 x 180) | 5” x 5.5” x 2.9” (128 x 140 x 72.5) |
| Weight Lb (kg) | 13 (6) | 3.3 (1.5) |
| Cooling requirements water system quoted upon request | n/a | n/a |
| Min. Cooling Water, GpM (LpM) | n/a | n/a |
| Inlet Water T° (max), F (°C) | n/a | n/a |
Power supply:
- RS-485 interface for remote computer monitoring, control, and diagnostics
- External power control input: 0-10 V or 4-20 mA
- External Controls – Start/Stop operation, External Fault
Heat Station:
- External Controls – Start/Stop/Foot Switch
| Equipment | Description | Part Number |
| Custom Coil | Custom Coil designed and manufactured for customer’s application. | |
| WCA-1000-02 | Water Cooling System 3.0 kW, 230 VAC,1-ph | 1ACC-900-100-00 |
 RCP-03 | External E-stop box with 16 ft leads | 1ACC-725-530-00 |
 FS-01 | Foot Switch Assembly | 1ACC-777-500-00 |
| ACC-01 | Output Coil Adapter | 1ACC-754-560-00 |
| ACC-02 | Output Adapter Blocks with 1-4 NPTF | 1ACC-030-001-XX |
| IR-XX | Temperature Control and Monitoring Systems | |
| CAB-WCL-600-XX | Flexible water cooled leads, from 3 – 15 ft. | 1ACC-530-700-XX |
Common questions about the UltraHeat S/AIR Series air-cooled induction heating power supplies, available in 2 kW and 4 kW models.
Does the S/AIR Series require water cooling?
No. The S/AIR Series is completely air-cooled — both the power supply and the compatible heat stations (HS-4AN and HS-1A) use air cooling only. This eliminates the need for a water chiller, plumbing, or water quality maintenance, making it ideal for portable applications or environments where water cooling is impractical.
What applications is the S/AIR Series designed for?
The S/AIR Series is designed specifically for low-temperature applications below 500°F (260°C). Typical uses include soldering, bonding, curing, shrink fitting of small components, and light brazing. For higher temperature applications, consider the water-cooled UltraHeat SM or SOLO series.
What is the difference between the SM and SMT models?
The SM models (SM-2A, SM-5A) include a standard control panel with 5 user programs. The SMT models (SMT-2A, SMT-5A) upgrade to a 5″ color LCD touch panel with 10 user programs, plus standard Digital I/O and analog power control. Both share the same power output and frequency range.
How much does the S/AIR power supply weigh?
The 2 kW models weigh just 11 lbs (5 kg) and the 4 kW models weigh 28 lbs (12.5 kg), making them among the lightest induction heating systems available. The compact size and air-cooled design make the S/AIR Series highly portable for field work or bench-top applications.
What is the frequency range?
The S/AIR Series operates from 20 kHz to 100 kHz across all models. The system automatically tunes to the optimal frequency for your coil and workpiece combination. All models deliver full rated power across the entire frequency range with 1% power control increments.
What external control and integration options are available?
The S/AIR Series offers optional Digital I/O for remote Start/Stop, external power control via 0–10V or 4–20mA inputs, temperature monitoring with K-type thermocouple, RS-485 serial interface for data logging and remote diagnostics, and an automation upgrade kit. On SMT models, Digital I/O comes standard.
What is the maximum cable length between the power supply and heat station?
The standard cable length is 6 ft (1.8 m). The maximum supported cable length is 30 ft (9.1 m), which provides flexibility for mounting the power supply away from the work area in production line setups. Contact our sales team for extended cable options.
PICTURES
Ready to Get Started with the S/AIR Series?
Download the full datasheet for detailed specifications, or let our application engineers help you find the ideal configuration for your heating process.
