16 amp 4 pole miniature circuit breaker is equipped with a C curve trip characteristic, which provides a balanced response to both overload and short-circuit conditions. This design of the C16 mini MCB ensures the safety and longevity of electrical systems, effectively safeguarding equipment from potential electrical faults.
4 Pole MCB Breaker Information
- Rated Current: 16 amp
- Rated Voltage: 230/400V AC, 50Hz
- Number of poles: 4 pole
- 6 kA rated short-circuit breaking capacity
- Compliant with IEC standard
- C curve trip characteristic
- With overload protection and short circuit protection function
Technical Data
| Model |
CCHN-NB8-634PC16 |
| Rated Current |
16A |
| Rated Voltage |
230/400V |
| Frequency |
50Hz |
| Number of Poles |
4P |
| Mechanical Life |
20000 Times |
| Electrical Life |
10000 Times |
| Rated Short-Circuit Breaking Capacity |
6000A |
| Operating Short-Circuit Breaking Capacity |
6000A |
| Rated Impulse Withstand Voltage (1.2/50) |
6kV |
| Dielectric Test Voltage |
2000V (50Hz, 1 min) |
| Heat & Humidity Resistance |
28 Cycles |
| Vibration Resistance |
No Obvious Vibration and Impact |
| Terminal Block |
Terminal Block Type |
Pillar Terminal Block |
| Min. Terminal Size Acceptability |
1mm2
|
| Max. Terminal Size Acceptability |
25mm2
|
| Standard Connection Torque |
2 N.m |
| Max. Tolerable Torque |
2.5 N.m |
| Wire Insertion Depth |
13mm |
| Reference Temperature |
30℃ |
| Operating Temperature |
-35℃~+70℃ |
| Storage Temperature |
35℃~+85℃ |
| Applicable Altitude |
2000m |
| Tripping Mode |
Thermal Magnetic Trip |
| Electromagnetic Tripping Type |
Type C (5In-10In) |
| Shell Flame Retardant Grade |
V0 |
| Wire Entry Method |
Both Upper and Lower |
| Installation Method |
TH35-7.5 Standard Rail |
| Protection Level |
Direct Installation |
IP20B |
| Installed in the Distribution Box |
IP40B |
4 Pole MCB Breaker Dimensions (Unit: mm)

Details

Tips: 16 amp 4 pole miniature circuit breaker applications
A 16 amp 4-pole miniature circuit breaker (MCB) is typically used in industrial and commercial electrical systems for protecting circuits against overcurrent and short circuits. Its 4 pole configuration is ideal for three-phase systems with a neutral line, protecting all conductors in the circuit (three phases and neutral).
Common applications include:
-
Power Distribution Panels: Protecting circuits that supply machinery or equipment, ensuring the safety of both electrical installations and operators.
-
Motor Protection: Safeguarding three-phase motors that require simultaneous protection of all phases and the neutral.
-
UPS Systems: Protecting uninterruptible power supplies, ensuring safe shutdown and preventing damage to sensitive electronics during faults.
-
Renewable Energy Systems: In solar or wind power installations, providing overcurrent protection to the inverter and associated wiring.
The 16 amp rating indicates it’s suitable for medium-sized systems, offering reliable protection without unnecessary tripping. Always ensure the breaker’s ratings match the circuit load to avoid damage.