Description
3 pole miniature circuit breaker (MCB) is ideal for the protection of circuits in industrial, commercial, and residential sectors, offering reliable and efficient protection for a wide range of applications. This 2 amp micro circuit breaker ensures that circuits are quickly disconnected in the event of a fault, preventing potential damage to equipment, and wiring, and reducing the risk of electrical fires.
3 Pole MCB Breaker Information
- Rated Current: 2 amp
- Rated Voltage: 230/400V AC, 50Hz
- Number of poles: 3 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 | ATO-NB8-633PC02 | |
| Rated Current | 2A | |
| Rated Voltage | 230/400V | |
| Frequency | 50Hz | |
| Number of Poles | 3P | |
| 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 |
3 Pole MCB Breaker Dimensions (Unit: mm)
Details
Tips: How to choose an MCB breaker?
When selecting an MCB (Miniature Circuit Breaker), consider the following factors:
- Current Rating: Choose an MCB with a current rating that matches the expected load of the circuit. For example, for a 2 amp load, select a 16A MCB.
- Voltage Rating: Ensure the mini circuit breaker is rated for the voltage of your system, typically 230V for residential or 400V for industrial applications.
- Breaking Capacity: The micro circuit breaker should have a breaking capacity (the maximum fault current it can safely interrupt) that exceeds the potential short-circuit current in your system.
- Trip Curve: MCBs have different trip curves (B, C, D). Curve B is suitable for residential circuits with resistive loads, while C is ideal for circuits with moderate inrush currents like motors.
- Number of Poles: Select the number of poles based on your circuit type—single pole for single-phase or multi pole for three-phase systems.
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