What are different sizes of the miniature circuit breakers
Miniature circuit breakers (MCBs) come in a variety of sizes, which are typically measured in terms of their physical dimensions, such as width, height, and depth. Here are some common sizes of MCBs:
- Standard sizes:
- 22mm wide x 72mm high x 50mm deep (e.g., Schneider Electric's Acti 9 range)
- 30mm wide x 90mm high x 60mm deep (e.g., ABB's Mini Circuit Breaker range)
- Compact sizes:
- 15mm wide x 50mm high x 30mm deep (e.g., Siemens' Simar range)
- 18mm wide x 60mm high x 35mm deep (e.g., Legrand's Acti 9 Compact range)
- Mini sizes:
- 10mm wide x 40mm high x 20mm deep (e.g., Schneider Electric's Acti 9 Mini range)
- 12mm wide x 45mm high x 25mm deep (e.g., ABB's Mini Circuit Breaker Mini range)
- Special sizes:
- 25mm wide x 100mm high x 70mm deep (e.g., some industrial or heavy-duty applications)
- 35mm wide x 120mm high x 80mm deep (e.g., some high-power or high-voltage applications)
Please note that these sizes are approximate and may vary depending on the manufacturer and specific product model. It's always best to check the specifications of a particular MCB product to ensure compatibility with your application.
In addition to physical size, MCBs also come in different types, such as:
- Frame sizes: MCBs are often categorized by their frame size, which refers to the width of the breaker. Common frame sizes include 22mm, 30mm, and 40mm.
- Current ratings: MCBs are designed to interrupt currents up to a certain rating, typically measured in amperes (A). Common current ratings include 10A, 20A, 30A, 40A, and 63A.
- Voltage ratings: MCBs are designed to operate at specific voltage levels, typically measured in volts (V). Common voltage ratings include 230V, 400V, and 690V.
When selecting an MCB, it's essential to consider factors such as the maximum current and voltage requirements of your circuit, as well as the physical space available for installation.