Switch components play a crucial role in the reliable operation of HVAC units by ensuring that heating, ventilation and air conditioning equipment is functioning correctly through the management of power, temperature and environmental conditions.
Switches can also detect abnormal conditions (water leaks, pressure changes, etc.) and trigger alarms to prevent damage. E-Switch products are designed to withstand the dust, moisture and temperature extremes you’ll find in garages, basements and outdoors. They also offer durable mechanical performance, long life cycles and reliable contact switching.
Below, you’ll find a variety of switch types suitable for HVAC equipment, including DIP, pushbutton, rocker, snap action and tactile switches.
Electromechanical Switches for HVAC Equipment
KAG Series DIP Switch: VIEW DATA SHEET | PRODUCT PAGE
- Gull wing surface mount (SMT) termination; low profile design
- From one to 10 positions; SPST each position
- Robust -40°C to +105°C operating temperature
- Extended or recessed actuator; top tape seal option
- Tube or tape and reel packaging
PV5 Series Anti-Vandal Pushbutton Switch: VIEW DATA SHEET | PRODUCT PAGE
- 12mm diameter panel cutout; raised or domed actuator
- IP65 rated; nickel, polished stainless or black anodized finish
- Terminal options include solder, screw or wire leads (300mm long)
- Electrical rating of 2A, 36VDC; SPST with momentary function
- Silver or gold contacts; -40°C to +85°C operating temperature
RB3 Series Rocker Switch: VIEW DATA SHEET | PRODUCT PAGE
- 30.2mm x 13.8mm panel cutout
- High quality and reliable switch with IP67 rating
- Electrical rating of up to 25A, 125VAC; UL and ENEC listed
- SPST or SPDT; momentary or latching functions
- Panel mount snap-in design; quick connect (0.250″) or wire leads termination
- Illuminated, dual illuminated or non-illuminated options
LS25 Series Snap Action Microswitch: VIEW DATA SHEET | PRODUCT PAGE
- Electrical Ratings:
- Silver – 25A, 125/250VAC (UL, cUL listed for appliances)
- SPDT circuit; On-(Off) momentary function
- Chassis mount; solder lug or quick connect termination
- Pin plunger, lever, roller or simulated roller actuator options
- Between 90gf and 400gf operating force options; 1,000,000 cycles mechanical life
TL3301 Series Tactile Switch: VIEW DATA SHEET | PRODUCT PAGE
- Surface Mount (SMT) design; gull wing or J-lead termination
- Industry standard 6.00mm x 6.00mm outline
- SPST Off-(On); many actuator height and cap options
- 100gf, 160gf or 260gf operating force
- 100,000 cycle life; -40°C to +85°C operating temperature
- Silver or gold contact material
- 50mA @ 12VDC
For more information, use our request form or reach out to a Regional Sales Manager today!
Questions and Answers
What types of switches are used in HVAC systems?
HVAC systems can use several types of electromechanical switches, including DIP, rocker, pushbutton, snap action and tactile switches. The appropriate switch depends on the control function, electrical requirements, mounting method and operating environment.
What should I consider when choosing a switch for HVAC equipment?
When choosing a switch for HVAC equipment, consider factors such as electrical ratings, operating temperature, mounting requirements, environmental protection and expected mechanical life. HVAC switches may need to operate reliably in environments exposed to dust, moisture and temperature extremes.
Why are sealed switches important for HVAC equipment?
HVAC equipment can be installed in garages, basements and outdoor environments where switches may encounter dust, moisture and temperature extremes. Selecting a switch with appropriate environmental protection can help support reliable operation in these conditions.
What are snap action switches used for in HVAC systems?
Snap action switches can be used in HVAC equipment when a mechanically actuated switching function is required. Available actuator styles can include pin plungers, levers and rollers, providing options for different mechanical control requirements.
Can switches help detect abnormal conditions in HVAC systems?
Yes. Switches in HVAC equipment can detect abnormal conditions such as water leaks or pressure changes and trigger alarms to help prevent damage. They can also support functions involving power, temperature and environmental conditions.
