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We repair all power tool types & brands and are an Authorized Repair Shop for Milwaukee, DeWalt, Bosch, Rothenberger, Bostitch, and Porter Cable.


Lenze Group Logo

"All over the world, machine builders are looking for ways and means to accelerate the development cycles of their machines, to reduce production costs and at the same time increase their flexibility, availability and transparency. Machine operators are interested in making machine maintenance more predictable and operation as intuitive as possible. There is also no way around the Internet of Things. This increases the complexity of automation, which Lenze makes controllable with its range of hardware, software and "brainware", namely its own experts. Digital innovations are essential here, and Lenze is also strategically oriented towards them - which was one of the decisive points for receiving the award Top 100 Innovator." Lenze Awards 

We carry a range of Lenze products. 

Image of Lenze i550 Protec Frequency Inverter Image of Lenze i550 Protec Frequency Inverter
Lenze i550 Protec Frequency Inverter

The award-winning i550 protec frequency inverter is built to be tough, versatile, and reliable. Potential applications for this rugged product include: conveyor drives, traveling drives, winding drives, hoist drives, extruders, packaging machines, pumps, fans, and more. 


  • IP66 degree of protection (Indoor & Outdoor NEMA 4X) with protection against high pressure water jets from any direction and dust tightness allows for use in harsh environment applications
  • First decentralized drive in the market with IO-Link interface V1.1
  • Integrated diagnostic interface (micro USB) for service purposes
  • Versions with or without repair switch, with keypad or WLAN module for easy commissioning
  • Optionally available with "Safe Torque Off (STO)" with SIL 3 (EN IEC 62061/EN IEC 61508) and Performance Level e (EN ISO 13849-1)


Find the i550 Configuration You Need 

Technical Information

i550 protec
Mains 1 AC 120 V 0.37 ... 1.1 kW (0.5     1.5 hp)
1 AC 230 V 0.37 ... 2.2 kW (0.5 ... 3 hp)
1/3 AC 230 V 0.37 ... 3 kW (0.5 ... 4 hp)
3 AC 230 V 3 ... 45 kW (4 ... 60 hp)
3 AC 400 V/480 V 0.37 ... 75 kW (0.5 ... 100 hp)
3 AC 600 V 0.75 ... 22 kW (1 ... 30 hp)
Overload behavior Mode S1: 150 %, mode S6: 200 %
Interfaces Digital inputs/outputs (5/1), analog inputs/outputs (2/1) Relay
External 24 V supply PTC/thermal contact input
HTL incremental encoder (100 kHz) USB onboard
CANopen, EtherCAT, EtherNet/IP, Modbus RTU, Modbus TCP, PROFINET, IO-Link
Integrated brake chopper DC bus connection
Conformity and approvals CE, UKCA, UL, CSA, CCC, EAC, UkSepro, RoHS, IE2 in accordance with EN 50598-2
Functions V/f characteristic control linear/square-law (VFC plus) Sensorless vector control (SLVC)
Energy saving function (VFC eco) Servo control (SC-ASM) with feedback
Sensorless vector control for synchronous motors
Vector control with feedback V/f  V/f characteristic control with feedback
DC-injection braking
Brake management for brake control with low rate of wear
Dynamic braking through brake resistor
S-ramps for smooth acceleration and delay Flying restart circuit, PID controller
Safety technology Safe torque off (STO)
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