Schneider Electric A9F90204 iC60L 2P 4A MA Circuit Breaker

A9F90204: two-pole 4 A MA-curve miniature circuit breaker

The A9F90204 is a Schneider Electric Acti9 iC60L miniature circuit-breaker, listed in the datasheet as iC60L – miniature circuit breaker – 2P – 4A – MA curve. It is a magnetic-only motor-application breaker: the datasheet lists the application as Motor, the trip unit as magnetic and the network type as AC. The datasheet gives a breaking capacity of 40 kA Icu at 220–240 V AC under EN/IEC 60947-2 and also lists 380–415 V AC and 440 V AC bands. Seven Star LLC supplies the A9F90204 in Oman and the GCC as an independent supplier based in Muscat.

The datasheet for this reference carries the date 8 Nov 2026 and does not state a lifecycle status, so confirm availability before ordering. A 4 A rating is typical for control-panel auxiliaries: small power supplies, contactor coil groups, panel fans and instrument feeders. The datasheet also lists compatibility with add-on residual current devices: Vigi iC60 single terminal add-on residual current device 25/40/63 A; Quick Vigi iC60 single terminal add-on residual current device 25/40 A.

Technical specifications of the A9F90204

Breaking capacity of the A9F90204 by voltage band

Breaking capacity is the figure that decides whether a breaker can be installed at a given point of the network. Icu is the ultimate capacity; Ics is the service capacity, expressed as a share of Icu, after which the device is still expected to remain serviceable. For the A9F90204 the datasheet lists the following.

Compare these values with the prospective fault current at the installation point; if the supply side can exceed them, the design needs a higher-rated device or upstream back-up protection.

Information to send with an RFQ for the A9F90204

• Full reference (A9F90204) and quantity
• Supply voltage, frequency and AC or DC use at the installation point
• Prospective short-circuit current and the load or cable the breaker protects
• Existing board, rail and neighbouring devices, including any add-on residual current device
• Delivery location, timing, and whether the order is a spare or a new installation

The A9F90204 within the iC60L MA-curve listing

No other 2P reference of this curve appears in this listing, so this unit stands alone at its pole count here. The table lists every reference of this device and curve that appears in our catalogue range.

Where the A9F90204 is used in Oman and the GCC

In Oman and the GCC the iC60 family appears in commercial buildings, industrial distribution boards, utility auxiliary panels and process cabinets. This unit fits circuits where a 4 A two-pole MA-curve breaker with this fault capacity is needed in a compact 9 mm module. Gulf plant rooms combine heat, dust and humidity; the datasheet gives operation from -35–70 °C, relative humidity of 95 % at 55 °C and tropicalisation class 2, so site conditions should be compared against these limits and against the derating practice of the board builder.

Installation and maintenance of the A9F90204

This unit clips onto a rail; the datasheet lists the mounting mode as clip-on. Strip conductors to 14 mm and tighten terminals to 2 N.m, using a calibrated screwdriver. Terminals accept 25 mm² rigid and 16 mm² flexible conductors at either the top or the bottom. The datasheet lists suitability for isolation, so the open breaker can serve as a disconnection point; follow the site lock-out procedure when working downstream.

Check periodically that the trip indicator is clear, that the handle moves freely and that terminals have not discoloured. Mechanical durability is 20000 cycles and electrical durability is 10000 cycles. A device that has cleared a heavy fault should be inspected and replaced rather than assumed intact.

2P construction of the A9F90204

As a two-pole device, it opens two conductors together, typically phase and neutral of a single-phase circuit or two phases of a line-to-line load, and occupies four 9 mm pitches (36 mm) of rail. Both poles are tied by the common handle, so a fault on either one opens both. Compared with two single-pole units it also gives a cleaner, shorter busbar arrangement in the board.

Net weight is 0.25 kg and the body is 36 mm wide, 85 mm high and 78.5 mm deep, so a panel layout should reserve 36 mm of rail per device plus a small gap for heat when several breakers sit side by side.

Using a 4 A rating: what the A9F90204 protects

Low-current ratings need attention to cable and load rather than to fault level. A very small breaker does not protect a cable against anything the cable could not already survive, so its job is mostly to isolate a faulty control feeder quickly and to give the maintenance team a visible, labelled switch point.

The MA curve is a magnetic-only characteristic with an instantaneous trip at 12 × In ± 20 %. It is intended for motor circuits where overload protection comes from a separate thermal device, such as a thermal relay or motor protection relay in the starter, while the breaker clears short circuits.

Documents and quotation

A datasheet for this unit is attached on this page. It lists the electrical, mechanical and environmental data summarised above and should be read together with the manufacturer’s installation instructions.

Send us the part number, quantity and application and we will confirm availability and a quotation. Seven Star LLC is an independent supplier in Muscat and is not affiliated with the manufacturer.