HVAC Electrical

These HVAC electrical disconnect(s) are important you dont want them falling of the wall. It is important to securely fasten electrical disconnect boxes to prevent electrical hazards like shock or fire. These electrical disconnects are responsible for the power disconnect for the condensing unit.  BNCHC will set you up properly when it comes to heating cooling, we’re your go to guys!

HVAC Electrical is a term used when discussing circuit breakers or fuse boxes, which are designed to protect electrical circuits when a power overload.  If an overload occurs, the only damage is to the fuse which gets burnt out to sever any electrical ties to the appliance or other source demanding power.

Circuit Breaker Types:

  • Low Voltage – These are very common breakers that are located in domestic homes, industrial spaces, and commercial offices.


  • Magnetic – These use a solenoid, and it’s pulling force is increased with the current. A latch holds the circuit breaker contacts. If the solenoid current increases beyond it’s rating limit, the soilnoid’s pull will release the latch which will then use spring action to release the latch.


  • Thermal Magnetic -These are commonly found in most distribution boards, and they use techniques such as the short circuit, and the bimetallic strip.
  • Common Trip Breakers – These are common on 120/240 volt systems.
  • Medium Voltage – Used in an outdoors substation or switchgear line-ups for indoor use, they are rated between 1 and 72 kV. These circuit breakers almost always use protective relays & separate current sensors.
  • High Voltage – High voltage breakers protect electrical power transmission networks. You are unlikely to see or notice one of these unless you work for a power company.

fuse box