Schneider Electric A9P52616 Acti9 iC40 1P + N 16 A C MCB

A9P52616: Acti9 iC40 1P + N 16 A C-curve miniature circuit breaker

The A9P52616 is a Schneider Electric Acti9 iC40 miniature circuit-breaker, single-pole plus neutral, rated 16 A with a C curve and a thermal-magnetic trip unit. It is only 18 mm wide on the DIN rail (2 modules of 9 mm), which makes it a compact way to protect final circuits in a distribution board. Seven Star LLC supplies the A9P52616 in Oman and the GCC as an independent supplier based in Muscat.

The title of the reference reads as iC40 (the standard performance version of the iC40), 1P + N for the pole arrangement, 16 A for the rated current and C for the trip curve. This unit is used on single-phase circuits where the neutral is switched alongside the phase.

Technical specifications of the A9P52616

How the A9P52616 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. At 16 A the device is the typical final-circuit size for lighting and small power in single-phase boards.

Selection checklist and RFQ details for the A9P52616

Check these points first.

• Poles: 1P + N; confirm the neutral is to be switched (yes).
• Rating and curve: 16 A, C curve, against the cable and load inrush.
• Fault level at the board against 6 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 A9P52616 and quantity.
• Supply voltage, number of phases and prospective fault level.
• Delivery location and required date.
• Required approval certificates, if any.

How the A9P52616 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 A9P52632 shares the 6 kA / 4.5 kA performance class and the same body, but its 32 A rating carries a lower electrical endurance figure of 10000 cycles.

Typical uses of the A9P52616 in Oman and the GCC

Single-pole plus neutral iC40 breakers are standard on residential, hotel and office final circuits, and on instrumentation and control supplies in industrial 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.

Breaking capacity and where it fits

The datasheet quotes 6 kA Icu and 4.5 kA Icn at 230 V AC. The standard iC40 sits below the N version in breaking capacity, so confirm the prospective short-circuit current at the board before choosing it. 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 KEMA and IMQ. Check that any project-specific approval you need is on that list before you order.

Mounting, wiring and add-on blocks for the A9P52616

The breaker clips onto a DIN rail and occupies 2 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. The neutral is on the left, so keep the wiring order consistent across the board when several single-phase circuits sit next to each other. 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 A9P52616 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 A9P52616 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.