Hager 2P 40A curve C circuit breaker with breaking capacity up to 10 kA, ideal for overload and short-circuit protection in civil and tertiary installations.
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The Hager MCA240 thermal-magnetic circuit breaker is designed to provide safe and reliable protection against overloads and short circuits in civil, commercial and tertiary installations. With a current rating of 40 A and trip curve C, it is perfect for protecting power lines with standard loads such as sockets, lights and small motors.
The C curve, trip threshold of 5 to 10 times In, for application of ohmic-inductive circuits with medium inrush currents. It is widely used in domestic installations, residential and functional buildings. A circuit breaker is a safety device that can automatically (i.e., without external intervention) interrupt the flow of electric current in an electrical circuit in the event of an overcurrent.
This circuit breaker ensures high interrupting capacity, with:
This performance makes it suitable even in critical conditions, where high standards of protection and reliability are required.
The MCA240 occupies only 2 DIN modules, making it easy to install in standard electrical panels. It is compatible with DIN rail systems and integrates seamlessly with other Hager electrical distribution solutions.
With its robust construction and thermal and magnetic trip technology, the circuit breaker effectively protects the system from overheating and short circuits, contributing to the safety of the entire electrical system.
| Feature | Value |
|---|---|
| Current | |
| Rated current | 40 A |
| Service interrupting capacity Ics at 230 V AC (IEC 60947-2) | 15 kA |
| Rated breaking capacity Icn at 230 V AC (IEC 60898-1) | 6 kA |
| Extreme short-circuit breaking capacity Icu at 230 V AC (IEC 60947-2) | 10 kA |
| Extreme short-circuit breaking capacity Icu at 400 V AC (IEC 60947-2) | 10 kA |
| Installation and mounting | |
| Upper terminal tightening torque | 2.80 Nm |
| Lower terminal tightening torque | 2.80 Nm |
| Lower connection type | Biconnect |
| Upper connection type | Screw terminal |
| 360° mounting option | Yes |
| Connection | |
| Input/output terminal section with screws (solid conductors) | 1 - 35 mm² |
| Input/output terminal section with screws (flexible conductors) | 1 - 25 mm² |
| Input terminal section with screws (flexible conductors) | 1 - 25 mm² |
| Terminal section with screws (rigid conductors) | 1 - 35 mm² |
| Conditions of use | |
| Pollution degree (IEC 60664 / IEC 60947-2) | 2 |
| Energy limitation class I²t | 3 |
| Operating temperature | -25 ÷ +70 °C |
| Power | |
| Total power dissipation | 6,70 W |
| Connectivity | |
| Type of connection | Screw terminal |
| Top alignment for modular devices | Aligned terminals |
| Bottom alignment for modular devices | Aligned terminals |
| Series | |
| Height | 83 mm |
| Width | 35 mm |
| Depth | 70 mm |
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