Delixi CDM3LE-32 C16 1P+N CDM3 series Moulded Case Circuit Breaker

This is a Residual Current Circuit Breaker (RCCB) with Over-Current Protection, commonly known as a "Leakage Protection Circuit Breaker" or "RCBO". It combines the functions of a standard circuit breaker (CDM3) and a life-saving leakage (earth fault) protection device.

Model Number Breakdown (CDM3LE-32 C16 1P+N)

1. Series: CDM3

This indicates the product belongs to Delixi's CDM3 series, which is one of their most popular and economical lines of miniature circuit breakers, known for reliable performance in residential and commercial applications.

2. Product Type: LE

This is the most critical part of the model. LE stands for "Leakage Protection" (also referred to as Earth Leakage or Residual Current protection).

This means the device is designed to protect people from electric shock and to prevent fire from earth leakage currents.

3. Frame Rating: -32

This indicates the "Frame Size" or the maximum current rating for this specific model's housing and mechanism. In this case, the breaker is part of a family where the highest rated current is 32 Amps.

Note: The specific breaker you have is rated for 16A (see below), but it sits within the 32A frame size family.

4. Tripping Characteristic & Current Rating: C16

C: This is the tripping characteristic curve. A "C-curve" is the most common for residential and commercial use. It is designed to handle the small, brief inrush currents from devices like TVs, computers, and lighting without nuisance tripping, but will trip instantly during a short-circuit. Its magnetic trip threshold is between 5 and 10 times the rated current.

16: This is the rated operational current. The breaker is designed to carry 16 Amps continuously and will trip on a sustained overload above this value.

5. Number of Poles: 1P+N

1P+N: This means "Single Pole + Neutral".

It has one "pole" that actively breaks the Live (Phase) wire under fault conditions (overload, short-circuit, or leakage).

The N (Neutral) terminal provides a path for the neutral wire, and it also breaks the neutral connection when the device trips. This is a crucial safety feature that ensures complete isolation when off or tripped.

The physical width is typically 2 modules (36mm) on a standard DIN rail.