Steve Lewis LLC dba

Peace of Mind
33 Years of Combined Experience

Call Us Today for Your Next Project

Locally Owned & Operated

1.0 hp – 450 hp (0.75 kW – 315 kW)

208-230 V | 460 V | 575 V

Nidec (formerly Emerson) is with you at all stages of your project and provides you with the knowledge, support and confidence to deal with any project need.

Helping you rapidly source drives and components for your installation
Providing dedicated all hours HVAC technical support
HVAC drives training, available from widespread locations or even at your site

The H300 has been designed to meet the needs of:

Consultants and design engineers

  • All the necessary features to meet your building HVAC project specification requirements
  • A highly reliable product and support service: simply specify, install and forget


  • Fast, easy and secure installation, commissioning and maintenance

Owners of commercial buildings

  • Achieves maximum building occupant comfort

  • Optimum energy saving and value with rapid ROI

A complete HVAC solution

H300 has all of the features you would expect from a dedicated HVAC drive, including:

  • Easy integration with Building Automation Systems
  • Industry standard BACnet and Modbus RTU communications onboard
  • Optional communication system integration modules available, including PROFIBUS, Ethernet I/P, DeviceNet, CANopen, PROFINET and Modbus TCP/IP
  • Generous onboard I/O and two integrated form C relays for the majority of HVAC system requirements

Firemode for occupant safety

Flexibility without a Building Management System

  • Onboard logic and Proportional Integral Differential (PID) controllers, temperature control, real-time clock and flexible I/O

Environmental safety and electrical conformance features including:

  • Efficiency, harmonic and dV/dt performance tested to AHRI (American Heating and Refrigeration Institute) standard 1210/1211
  • Supply harmonics calculator ensures HVAC System Conformance to required electrical standards
  • Electromagnetic Immunity complies with EN 61800-3 and EN 61000-6-2
  • With onboard EMC filter, complies with EN 61800-3 (Category C3)
  • Safe Torque Off, independently assessed by TÜV to IEC 61800-5-2 SIL 3 and EN ISO 13849-1 PL
  • UL 508C (Electrical Safety)

Quiet operation with Rotor Flux Control modes and high switching frequencies (up to 16 kHz)
High product reliability with conformally coated PCBs
Easy system installation and ongoing management:

  • Easy-to-use PC tools
  • Intuitive keypads for superior diagnostics and rapid fault resolution
  • Simple and clear user documentation/installation guide
  • Remote connectivity allows easy system maintenance

High energy efficiency:

  • Low losses, up to 98% efficient
  • Energy efficiency calculator tool to demonstrate energy saving
  • Compact dimensions

Nidec HVAC Drive H300 VFD

The HVAC Drive H300 is the result of extensive research and builds on our vast experience of the HVAC market. The H300 drive dimensions are among the smallest in class at every power rating. This saves valuable building real estate, makes the drives easy to handle and maximizes mounting flexibility. The offering includes UL508A approved, fan and pump controller bypass packages that are fully integrated with HVAC Drive H300 and are available in NEMA 1 enclosures. For more information see the Electronic Bypass page.

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