The ABB A2B 250 is a high-performance 3-pole molded case circuit breaker (MCCB) designed for reliable protection against overloads and short circuits in electrical systems. Built with advanced technology, it ensures efficient power distribution, enhanced safety, and long-term durability for industrial and commercial applications.
Key Features:
- 250A Rated Current – Provides robust circuit protection.
- 3-Pole Design – Ideal for three-phase electrical systems.
- High Breaking Capacity – Ensures safety in fault conditions.
- Thermal-Magnetic Trip Unit – Offers precise overload and short-circuit protection.
- Compact & Durable Construction – Ensures longevity and reliability.
- Easy Installation – Compatible with various mounting options.
- Versatile Applications – Suitable for industrial and commercial setups.
- Compliance with International Standards – Meets safety and performance regulations.
Specifications
Design
| | Product or component type | Miniature Circuit Breaker (MCB) |
| | Complementary | Provided equipment |
|
| | Mounting | DIN Rail Mounting (EN 60715) |
| | Terminal Type | Screw Clamp Terminals |
|
| Torque for Terminals | 2.0 Nm (recommended) |
| | Mechanical Life | ≥ 20,000 operations |
| | Electrical Life | ≥ 10,000 operations |
|
Electrical
| Rated Current (In) | 6A, 10A, 16A, 20A, 25A, 32A, 40A, etc. |
| | Rated Voltage (Ue) | 230/400V AC |
| |
| Breaking Capacity (Icn) | 6 kA |
| | Tripping Characteristics | Type B, C, D |
| | Isolation Function | Yes (visible contact gap) |
|
Environmental
| Operating Temperature | -25°C to +55°C |
| | Storage Temperature | -40°C to +70°C |
| | Humidity | ≤ 95% (non-condensing) |
|
| Pollution Degree | 2 (as per IEC 60664) |
| | Altitude | Up to 2000 meters above sea level |
| |
Physical
Certifications
| International Standards | IEC 60898-1, IEC 60947-2 |
| | Certifications | CE, CCC, RoHS compliant |
| |
Applications
| | Commercial and office spaces | Yes |
| | Industrial control panels | Yes |
|
| | Power distribution boards | Yes |
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