The C-Curve is designed for applications where moderate inrush currents (such as from fluorescent lighting, motors, or power tools) are present.
It trips at 5 to 10 times the rated current, making it ideal for residential and commercial circuits.
General Power Circuits: Protects outlets, lighting circuits, and appliances in homes and businesses.
Small Motors & Pumps: Can handle inrush currents from small motors.
Industrial & Commercial Use: Suitable for office buildings, retail spaces, and light industrial applications.
Sub-Boards & Distribution Boards: Used in electrical panels to prevent overload and short circuits.
FEATURES:
The C-Curve rating allows the breaker to trip at 5 to 10 times the rated current, making it ideal for circuits with moderate inrush current.
The MCB4-120 is rated for 20 Amperes (A), meaning it can handle electrical loads up to 20A before tripping to prevent overheating or damage.
Suitable for household appliances, lighting circuits, and small motors.
The breaker operates at 240V AC, which is the standard voltage for single-phase power in most residential and commercial buildings.
A Single Pole (1P) breaker interrupts only the live (phase) wire when a fault occurs.
The breaking capacity defines how much short-circuit current the MCB can safely handle before failure.
| Brand |
Clipsal |
| Model |
MCB4-120 |
| Current Rating |
20A |
| Tripping Curve |
C-Curve (Trips at 5-10 times rated current) |
| Voltage Rating |
240V AC |
| Poles |
1P (Single Pole) |
| Breaking Capacity |
6kA or 10kA (Short-circuit withstand rating) |
| Mounting Type |
DIN Rail Mountable |
| Operating Frequency |
50Hz / 60Hz |
| Compliance Standards |
IEC 60898-1, AS/NZS 60898.1 |
| Protection Type |
Overload & Short Circuit Protection |
| Trip-Free Mechanism |
Yes (Breaker trips even if switch is held ON) |
| Housing Material |
High-strength, flame-retardant plastic |
| Ambient Temperature Range |
-5°C to +55°C |
| Humidity Resistance |
Up to 95% RH |
| Endurance (Mechanical Life) |
≥10,000 operations |
| Endurance (Electrical Life) |
≥4,000 operations |
| Weight |
Approx. 125g |
| Dimensions (H × W × D) |
~80mm × 18mm × 70mm |
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