A9P52606

What type of circuit protection does this device provide?

This Acti9 iC40 miniature circuit breaker provides thermal-magnetic protection against overloads and short circuits in AC distribution circuits. The A9P52606 has a 6 A rated current and a C-curve tripping characteristic.

What does the 1P+N configuration mean?

The device has a single protected phase pole and a neutral pole. The neutral connection is positioned on the left, which should be taken into account when planning the distribution board layout.

What is the rated operating voltage and frequency?

The rated operating voltage is 300 V AC at 50/60 Hz. Suitability for a particular circuit also depends on its current requirements and prospective short-circuit level.

How does the C-curve tripping characteristic work?

The C-curve characteristic specifies a magnetic tripping threshold of 5 to 10 times the rated current under EN/IEC 60898-1. The thermal element responds to sustained overloads, while the magnetic element responds to short-circuit currents.

What is the short-circuit breaking capacity?

The rated short-circuit capacity, Icn, is 4,500 A at 300 V AC under EN/IEC 60898-1. The ultimate short-circuit breaking capacity, Icu, is 6 kA at 300 V AC under EN/IEC 60947-2. These ratings relate to different standards and should not be treated as interchangeable.

Does this circuit breaker provide earth-leakage protection?

No integrated earth-leakage protection is specified. A separate protective device is required where residual-current protection is needed.

How is the circuit breaker mounted?

The breaker uses a clip-on DIN rail mounting arrangement. Its 18 mm width occupies two 9 mm modules, making it a compact option for distribution board layouts.

What are the dimensions and weight?

The A9P52606 measures 85 mm high, 18 mm wide and 74 mm deep. The listed product weight is 120 g.

What conductor sizes can the terminals accept?

The upper and lower tunnel terminals accept flexible conductors from 1 to 10 mm² and rigid conductors from 1 to 16 mm².

What are the terminal tightening and wire preparation requirements?

The specified terminal tightening torque is 2 N·m. The stated conductor stripping length is 14 mm for both upper and lower connections.

What operating and storage temperatures are specified?

The specified ambient operating temperature range is −25 °C to +70 °C. The storage temperature range is −40 °C to +85 °C.

What degree of ingress protection does the device have?

The device is rated IP20. An IP40 rating is specified when installed in a suitable modular enclosure, so the enclosure arrangement matters when assessing the protection of the complete assembly.

Which electrical standards are listed for this circuit breaker?

The listed standards are EN/IEC 60898-1 and EN/IEC 60947-2. Its insulation voltage is 400 V AC, and its rated impulse withstand voltage is 4 kV.

What local status indications are provided?

The breaker includes ON/OFF indication, a contact-position indicator and a trip indication. It is operated locally using a toggle.

Is the circuit breaker suitable for isolation?

The device is specified as suitable for isolation in accordance with EN/IEC 60947-2. Its use as an isolating device must still be assessed against the requirements of the installation.

What should be checked when selecting a replacement?

Check the 6 A current rating, C-curve characteristic, 1P+N configuration, left-hand neutral position, operating voltage and applicable breaking capacity. DIN rail mounting, dimensions, terminal capacity and the required circuit protection functions should also match the installation.