Residential & Commercial Controls

Residential and commercial controls are automatic devices that are mechanically, electro-mechanically, electrically, or electronically actuated to respond to temperature, pressure, humidity, light, electrostatic effect, flow, or liquid level.

Components that enable these uses include:

• Automatic household controls
• Class 2 and 3 transformers designed primarily for use with residential controls
• Control transformers
• Inherent overload protective devices for fractional horsepower split phase and capacitor motors
• Motor-driven and other types of programming sequencing devices
• Panels for air-conditioning, refrigeration, and electric heating
• Relays that control the starting windings of fractional horsepower split phase and capacitor motors

NEMA Members manage the NEMA Energy Aware certification and labeling program for residential high-performance programmable thermostats.