EKOHEAT® 300, 375 & 500 kW Induction Heating Systems

Max Power
300, 375 & 500 kW

5-15 kHz

Line Voltage
360 - 520 3Ø Vac

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EKOHEAT 300 kW, 375 kW & 500 kW VPA induction heating systems

Power to 500 kW
Operation from 5 kHz to 15 kHz
World-class Induction Heating Systems

EKOHEAT 300 kW, 375 kW & 500 kW VPA induction heating systems  for the 5 to 15 kHz frequency range provide reliable and repeatable solutions for heating with large coils or for heating larger parts. Typical applications include heating parts that require deeper heat penetration, heat treating steel, preheating for forging of steel, aluminum, copper or brass, and melting in crucibles


♦ Efficient heating of many part geometries, sizes and compositions
♦ Multiple capacitor configurations
♦ Multiple tap transformer configurations
♦ Voltage or Power control
♦ Repeatable, reliable heating, agile frequency tuning
♦ Through-Curie heating
♦ Movable workhead; up to 30m (100’)
♦ Sub-second to continuous cycle times
♦ Remote operation or logging with RS485 port
♦ Accepts international AC line voltages

Easy to Use

♦ User-friendly operator front panel controls
♦ System configuration from front panel
♦ Cycle timer, peak and short-cycle data capture
♦ 10 ten-step heating profiles
♦ Overload-tolerant output management
♦ 5-language display suite (EN, ES, FR, DE, IT)
♦ System Diagnostics from the front panel

EKOHEAT is CE marked and manufactured at our IS0 9001:2015 certified facility.

With the versatile EKOHEAT power control system you get rapid tuning, efficient and precise heating of your parts, power control within 0.2% resolution and an easy-to-use, easy-to-read front panel. Remote control is accomplished with 0-10V, 4-20mA inputs, RS485 serial port, 24V controls and remote E-Stop input so integration with your automated production lines is easy.

EKOHEAT technology improves return on investment by reducing your energy usage compared to gas-fired and resistive heating techniques. With very efficient power conversion and a power factor greater than 0.9, utility demand charges are reduced, lowering monthly energy bills. EKOHEAT VPA systems are designed on a host/client principle so you can add additional power should your process require it in the future.

A separate cabinet houses the resonating capacitor bank, available in several different sizes to meet customer-specific applications. The workhead may be placed up to 30 meters from the power supply. Alternatively, the resonating capacitor may be mounted in an extra bay to locate it with the power supply.

This is a water-cooled system, requiring connection to a heat exchanger or other means of dissipating heat.






RF Terminal Power1





AC Line Power





Power Factor



Output Frequency

5 – 15


AC Line Voltage

360 - 520

Vac, 3Ø

AC Line Protection2

300 for 1 bay, 600 for 1 bay | 600 for each of 2 bays



LCD Monochrome, 240w x 128h Pixels


Serial Communication

RS485 standard (RS485/232 converter optional)


Process Timer

0.01 - 10000


Max Ambient Temp

45 (115)

°C (°F)


CE, UKCA, EN 60519, EN 61326-1


Ingress Protection

IP54 NEMA 12



1718 x 848 x 1956 (67 x 33 x 77)

WxDxH mm (in)


667 (1470)

667 (1470)

708 (1560)

kg (lb)



36.3 (9.6)

36.3 (9.6)

47 (12.4)

l/m (g/m)

Flow (incl workhead & coil)4

94.9 (25.1)

104 (27.5)

130 (34.2)

l/m (g/m)

Pressure Differential (Range)

2.8 - 5.6 (9.6)

Bar (lb/in2)

Maximum Input Pressure

5.6 (80)

Bar (lb/in2)

Max Water Temp

35 (95)

°C (°F)

1) Fast-acting fuses
2) Suitable for incorporation into equipment for compliance with Machinery Directive
3) Power supply; required workhead coil flow requirements vary by application
4) Assumes 70% coil losses

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Four Ways To Contact Ambrell for Support


1655 Lyell Avenue
Rochester, NY 14606
United States

Directions to Ambrell Corporation Directions

T: +1 585 889 9000

F: +1 585 889 4030

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S: +1 585 889 0200


Holtersweg 1
7556 BS Hengelo
The Netherlands

Directions to Ambrell B. V. Directions

T: +31 880 150 100

F: +31 546 788 154

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Unit 6, Space Business Centre
Tewkesbury Road
Cheltenham, GLOS, GL51 9FL
United Kingdom

Directions to Ambrell Ltd.Directions

T: +44 1242 514042

F: +31 546 788 154

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