For example, the phrase spondylosis of the lumbar spine means degenerative changes such as osteoarthritis of the vertebral joints and degenerating intervertebral discs (degenerative disc disease) in the low back.
Special offers. MCB Selection. MCBs or Miniature Circuit Breakers are intended to give protection against overloads and short circuits, which can cause damage to cables and equipment. MCBs have current ratings (6A, 10A etc.) above which they will start to open or trip and give protection to the equipment.
âMCBâ stands for âMiniature Circuit Breakersâ while âMCCBâ is âMolded Case Circuit Breaker.â. The main difference between the two is their capacity with the MCB rated under 100 amps with an interrupting rating of under 18,000 amps.Consequently, their trip characteristics may not be adjusted since they basically cater to low circuits.ircuit breakers are usually reset after they have been âtripped.â Both MCB and MCCB are highly durable and could last for years depending on the manufacturer. When choosing between using an MCB and an MCCB, it is important to consider the amount of power that would be coursing through the device.