Schneider Electric A9F53104 Acti9 iC60H 1P 4A B MCB

A9F53104: Acti9 iC60H 1P 4 A B-curve breaker

The A9F53104 is an Acti9 iC60H miniature circuit breaker from Schneider Electric: 1P, rated 4 A, thermal-magnetic trip unit and B tripping curve. It has a single protected pole, used for one phase conductor in a single-phase final circuit. Seven Star LLC supplies the A9F53104 in Oman and the GCC as an independent supplier based in Muscat.

The reading of the reference follows the product title and datasheet fields, not a published ordering key: A9F53104 belongs to the iC60H range with 1 pole, a 4 A rating and curve code B. The datasheet was generated on 8 Nov 2026, and the figures below follow it.

Trip characteristics of the A9F53104

A thermal-magnetic breaker combines two mechanisms. The thermal element follows sustained overload and responds slowly, so a brief surge does not cause a nuisance trip. The magnetic element reacts to short-circuit current almost at once. On this unit the datasheet gives the magnetic tripping limit as 4 × In ± 20 %, which for a 4 A rating works out to roughly 12.8 A to 19.2 A, centred on 16 A. Inside that band the instantaneous element is expected to operate; below it, only the thermal element acts.

Curve B is the sensitive choice. With a magnetic limit of only 4 × In, the breaker reacts to modest fault currents, which makes it useful on long cable runs, at the far end of radial feeders and in systems where the earth-fault loop impedance is high and the available fault current is small. The trade-off is inrush: lamp transformers, small motors and power-supply banks may trip a B breaker at switch-on. The limitation class is 3 under EN/IEC 60898-1, which means the breaker restricts the let-through energy of a fault well below the prospective level.

Technical specifications of the A9F53104

How the A9F53104 compares with related references

The table sets the A9F53104 beside nearby references from the same Acti9 iC60 family, each taken from its own datasheet. Width follows the number of poles at 9 mm per module, so the 1P version here is 18 mm wide. The Icu column shows the highest AC figure listed for each reference.

Where the A9F53104 fits in Oman and the GCC

Breakers of this class are used in single-phase lighting and socket circuits in villas, offices, site cabins and utility rooms. This unit is typically selected for very small loads such as signalling, control-transformer primaries and instrument supplies, where a larger breaker would not protect the cable or load closely. Gulf installations bring their own concerns: high board temperatures in direct sun, dust ingress through cable entries, and humidity in coastal areas. The datasheet allows operation to 70 °C and 95 % humidity at 55 °C, but a board that runs hot also reduces the margin before the thermal element trips, so ventilation and derating deserve attention.

Curve B suits long villa and warehouse circuits where cable length limits the fault current.

Breaking capacity and DC use of the A9F53104

Breaking capacity is the largest fault current the device can interrupt. Icu is the ultimate capacity; Ics is the service capacity after which the breaker is still expected to remain usable, shown here as a percentage of Icu. The iC60H is the higher-capacity tier of the iC60 range. For this reference the datasheet lists 70 kA at 220–240 V AC and up to 70 kA at the lowest AC band, with Ics given as 100 % of Icu or more on the AC rows. The figures fall as the rated current rises, so read the row for the exact reference.

Under EN/IEC 60898-1 the datasheet also lists 10000 A Icn at 240 V AC. The network type is AC/DC, and the DC ratings are limited to the voltage bands in the table (12–60 V DC and 60–72 V DC). On a DC system the pole count matters, so check how many poles must be in series for the system voltage rather than reusing an AC arrangement.

Selection checklist for the A9F53104

• Circuit: 4 A suits very small loads such as signalling, control-transformer primaries and instrument supplies, where a larger breaker would not protect the cable or load closely; confirm the cable rating and the load starting current.
• Poles: 1P is for one phase conductor in a single-phase circuit, with the neutral solid or switched elsewhere; make sure the system earthing matches.
• Fault level: available short-circuit current at the board must stay below 70 kA at the highest AC rating listed.
• Trip: B curve, magnetic trip around 16 A (± 20 %); compare with the expected fault current at the far end of the cable.
• Status: no discontinuation notice is shown on the datasheet date.

Connections, mounting and dimensions of the A9F53104

The A9F53104 clips onto a DIN rail and occupies 2 modules of 9 mm, a width of 18 mm, with a height of 85 mm and a depth of 78.5 mm. Net weight is 0.125 kg. A toggle operates it, a contact position indicator and a trip indicator show the state, and the lever can be padlocked, which helps with lock-out procedures.

Each pole has a single terminal at the top and at the bottom accepting up to 25 mm² rigid or 16 mm² flexible conductor. The datasheet specifies a wire stripping length of 14 mm and a tightening torque of 2 N.m, so use a calibrated screwdriver and a conductor cross-section suited to the 4 A rating and the installation method. The datasheet lists compatible Vigi iC60 and Quick Vigi iC60 add-on residual current devices, and earth-leakage protection is a separate block, not built into this breaker.

The operating range is −35 to 70 °C and humidity is rated at 95 % at 55 °C. The enclosure protection is IP20, so the breaker belongs inside a closed board.

Information to send with an RFQ for the A9F53104

• Exact reference A9F53104 and quantity.
• System voltage, number of phases and whether the circuit is AC or DC.
• Available fault level at the board and the cable size to be protected.
• Any matching add-on residual current block, auxiliary or accessory needed in the same order.
• Delivery location in Oman or the GCC and project timeline.

Documents and quotation

The manufacturer datasheet for the A9F53104 is attached on this page. It holds the specification summarised here; check the date and lifecycle notice against your project.

Send us the reference A9F53104, quantity and delivery location and Seven Star LLC will reply to your request. We supply as an independent supplier based in Muscat.