NXB-63 3P CHINT Miniature Circuit Breaker (MCB)

NXB-63 3P CHINT Miniature Circuit Breaker (MCB)
1. CHINT NXB-63 3P (Miniature Circuit Breaker)

• What it is: A safety switch installed in electrical distribution boards. 
• Function: It automatically cuts off the electricity supply if the circuit draws too much current (overload) or if a fault occurs (short circuit). 
• Specifications: Available in 1A to 63A versions with standard tripping curves (B, C, or D). It breaks up to 6kA or 10kA of fault current. 
• Where to find it: You can browse, compare specs, or purchase them on platforms like 

2. Limit Switch / Sensor (Alternative Device)

• What it is: An electromechanical device that detects the presence/absence of an object or tracks the travel limit of a moving machine part.
• Function: They act as an electronic trigger in automation—for example, turning off a conveyor belt when a package hits the end of a line or detecting if a door is open.
• Common Brands: Brands like Omron, Honeywell, or Banner are common, with standard switches available on IndustryBuying. 

For a visual guide on how MCBs like the NXB-63 are wired and installed into terminal boxes: