Schneider Electric A9P54306 Acti9 iC40N 3P 6 A C MCB

A9P54306: Acti9 iC40N 3P 6 A C-curve miniature circuit breaker

The A9P54306 is a Schneider Electric Acti9 iC40N miniature circuit-breaker, three-pole, rated 6 A with a C curve and a thermal-magnetic trip unit. It is only 54 mm wide on the DIN rail (6 modules of 9 mm), which makes it a compact way to protect final circuits in a distribution board. Seven Star LLC supplies the A9P54306 in Oman and the GCC as an independent supplier based in Muscat.

The title of the reference reads as iC40N (the N performance version of the iC40), 3P for the pole arrangement, 6 A for the rated current and C for the trip curve. This unit is used on three-phase final circuits.

Technical specifications of the A9P54306

Breaking capacity and where it fits

The datasheet quotes 10 kA Icu and 6 kA Icn at 400 V AC. The N version of the iC40 raises these to 10 kA Icu and 6 kA Icn against the 6 kA and 4.5 kA of the standard version, so choose it when the prospective short-circuit current at the board is higher. Service breaking capacity is listed at 100 % of Icn for the IEC 60898-1 rating, and the limitation class is 3, meaning a lower let-through energy than classes 1 and 2.

The approval list in the datasheet includes CE, BV, RINA and DNV, which are relevant to marine and offshore enclosures; the quality labels listed for this reference are OVE and AENOR. Check that any project-specific approval you need is on that list before you order.

Typical uses of the A9P54306 in Oman and the GCC

Three-pole iC40N breakers are used on small three-phase loads such as pump motors, fans and compressors fed from sub-boards, and for outgoing circuits in commercial buildings. In the Gulf climate the listed operating range of -25–70 °C and 95 % humidity at 55 °C are suitable for most indoor panels, but a ventilated or air-conditioned room still extends life. The marine approvals in the datasheet also make it a candidate for vessel and offshore accommodation panels.

How the A9P54306 compares with its siblings

The closest references in the same range are listed below for comparison. Same-range siblings share terminals and dimensions per pole; they differ in rating and breaking capacity.

The A9P54602 is the single-pole plus neutral member of the N class at 2 A, whereas the A9P54306 is a three-pole version at 6 A.

Selection checklist and RFQ details for the A9P54306

Check these points first.

• Poles: 3P; confirm the neutral is to be switched (no, phases only).
• Rating and curve: 6 A, C curve, against the cable and load inrush.
• Fault level at the board against 10 kA Icu.
• Approvals: the project may need BV, RINA or DNV; all three appear in the datasheet.
• Add-on blocks and busbars: earth-leakage block, padlocking.
• Enclosure: IP20 alone, or IP40 inside a modular enclosure.

With your enquiry, send:

• Part number A9P54306 and quantity.
• Supply voltage, number of phases and prospective fault level.
• Delivery location and required date.
• Required approval certificates, if any.

How the A9P54306 trips and what the curve means

A bimetal strip heats under sustained overcurrent and releases the contacts after a delay that shortens as current rises; an electromagnet releases almost instantly once the current passes the magnetic limit. For this unit the C curve places that limit at 5–10 times the rated current to EN/IEC 60898-1, or 8 times with a ± 20 % tolerance to EN/IEC 60947-2. On a 6 A rating the instantaneous threshold is only a few tens of amperes, so a three-phase circuit of small motors or control transformers should be checked for inrush before the C curve is accepted.

Mounting, wiring and add-on blocks for the A9P54306

The breaker clips onto a DIN rail and occupies 6 modules. Tunnel terminals at top and bottom accept 1–10 mm² flexible or 1–16 mm² rigid conductors; strip 14 mm and tighten to 2 N.m. With three poles the 54 mm body covers three phase terminals; a neutral busbar is wired separately because the pole count here protects phases only. A padlocking device holds the toggle in the open position, and an earth-leakage block can be added as a separate module on the supply side where the project requires residual-current protection. Trip indicator and ON/OFF indication make it easy to see from the front which circuit tripped.

Documents and quotation

The manufacturer’s product datasheet for the A9P54306 is attached on this page for reference; it is the document to use when you verify ratings, dimensions and approvals against your own design. It lists the rated values for this exact reference.

To receive a quotation, send the part number A9P54306 with quantity and delivery location in Oman or the GCC. Seven Star LLC replies with availability and lead time as an independent supplier based in Muscat.