Description
Double pole 16 amp miniature circuit breaker (MCB) is designed to provide reliable overload and short-circuit protection in electrical circuits. This micro circuit breaker is commonly used for branch circuit protection in residential settings, ensuring the safety of wiring and connected devices.
Double Pole MCB Breaker Information
- Rated Current: 16 amp
- Rated Voltage: 230/400V AC, 50Hz
- Number of poles: 2 poles
- 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 | ATO-NB8-632PC16 | |
| Rated Current | 16A | |
| Rated Voltage | 230/400V | |
| Frequency | 50Hz | |
| Number of Poles | 2P | |
| 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 |
Double Pole MCB Breaker Dimensions (Unit: mm)
Details
Tips: Different types of break curves of miniature circuit breaker
- A trip curve: The magnetic tripping current is (2-3) In, which is suitable for protecting semiconductor electronic circuits, measuring circuits with low-power transformers, or systems with long circuits and low currents.
- B trip curve: The magnetic tripping current is (3-5) In, which is suitable for pure resistive loads and low-voltage lighting circuits. It is often used to protect household power distribution systems, household appliances, and personal safety.
- C trip curve: The magnetic tripping current is (5-10) In, which is suitable for inductive loads and high-inductance lighting circuits, and is often used to protect power distribution lines and lighting lines with higher on-current.
- D trip curve: The magnetic tripping current is (10-20) In, which is suitable for systems with high inductive loads and large inrush currents, and is often used to protect equipment with high inrush currents, such as transformers, solenoid valves, etc.
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