Macromatic Industrial Controls provides a full line of USA‑made relays and monitoring products for OEMs and panel builders. Their solutions cover timing, alternating, voltage monitoring, current sensing, and pump protection. WD Engineering Sales is the local Macromatic representative supporting product selection and applications.

LS Electric continues to grow as a trusted name in motor control, offering drive families built for real‑world HVAC, pumping, and industrial applications. With purpose‑specific designs, flexible BAS communication options, and horsepower ranges that fit both small and large systems, LS Electric makes it easier for contractors and engineers to choose the right drive for the job. WD Engineering Sales proudly represents LS Electric and supports product selection, technical guidance, and project needs across the region.

The LS Electric H100+ Fan & Pump VFD is engineered specifically for HVAC and pumping applications, delivering smarter control, modern BAS communication, and built‑in protection features that keep systems running efficiently and reliably. With application‑focused modes like lead‑lag sequencing, soft‑fill operation, and multi‑motor control, the H100+ gives contractors and engineers a dependable drive designed for real‑world fan and pump demands. WD Engineering Sales proudly represents LS Electric locally, supporting product selection, technical guidance, and project needs across the region.

Song Chuan delivers one of the industry’s most versatile relay portfolios, offering high‑power, PCB, automotive, and specialty relay solutions for appliances, HVAC systems, vehicles, and industrial equipment. Their focus on reliable electromechanical switching makes them a trusted choice for manufacturers across multiple markets.

Song Chuan relays play a critical role in keeping today’s white‑goods appliances running safely and reliably. From refrigerators and washers to ovens, dishwashers, and HVAC equipment, their high‑performance relay solutions support the motors, compressors, pumps, and heating elements that power everyday household tasks. Manufacturers trust Song Chuan for long life, strong electrical endurance, and dependable switching across all major appliance categories — making them a go‑to choice for modern appliance designs.