Schneider Electric A9N15636 Acti9 STI 1P fuse-disconnector

A9N15636: Acti9 STI single-pole fuse-disconnector for 10.3 × 38 mm mm fuses

The A9N15636 is a Schneider Electric Acti9 STI fuse-disconnector: a DIN-rail fuse holder with a hinged carrier that takes 10.3 × 38 mm mm cartridge fuses, single-pole and up to 25A per pole. Seven Star LLC supplies the A9N15636 in Oman and the GCC as an independent supplier based in Muscat. Pulling the carrier opens the circuit and lets the user replace the fuse without tools on the live side of the panel.

This unit is described in the title as 1P, 25 A and for fuse 10.3 × 38 mm mm. This is the 10.3 × 38 mm version, so the cartridge size, the rated voltage (500 V AC) and the permitted current range are specific to this reference and differ from its siblings.

Technical specifications of the A9N15636

Where the A9N15636 is used in Oman and the GCC

Fuse-disconnectors of this kind are used in control cabinets for pumps and fans, in lighting and power distribution boards, on supply circuits of instrumentation and PLCs, and in motor-starter panels where aM fuses are specified. The 10.3 × 38 mm size fits motor feeders and heavier auxiliary circuits in industrial plants, water treatment and oil and gas utility buildings. The listed operating range is -20–60 °C, so panels in hot rooms should be ventilated and de-rated at the fuse according to the fuse maker’s data. Fine desert dust is best kept out with a gasketed enclosure since the module itself is only IP20.

STI references to compare with the A9N15636

The table lists the other STI modules in the same series so that you can match pole count and fuse size.

Selection checklist and RFQ details for the A9N15636

Confirm the following.

• Fuse size: 10.3 × 38 mm mm, matched to the cartridges you already stock.
• Fuse current: up to 25A, and gG or aM type according to the load.
• Pole count: 1P (as required).
• Voltage: 500 V AC rated operational voltage.
• Space: 18 mm of rail.

Send with your RFQ:

• Part number A9N15636 and quantity.
• Whether fuse links are also needed, with type and current.
• Circuit voltage and load type.
• Delivery location and date.

Fuse size and ratings of the A9N15636

The 10.3 × 38 mm cartridge takes the common mid-size industrial fuse and is listed up to 25 A at 500 V AC rated operational voltage, so it can also protect small motor feeders and contactor-controlled branches at 400 V.

Listed currents for this module are 2A, 4A, 6A, 10A, 16A, 20A, 25A. These are the values of the fuse link that can be fitted, not a rating of the holder alone; always check that the fuse type, size and voltage rating printed on the cartridge match the data for this unit. Fitting an oversized cartridge defeats the cable protection and is a common installation fault.

Installation and replacement notes

The module is 18 mm wide (2 modules of 9 mm) and clips onto a DIN rail. The screw clamp terminals accept one conductor of 0.75–10 mm² rigid or 0.5–6 mm² flexible, or two conductors of up to 4 mm² rigid or 6 mm² flexible; strip 12 mm and tighten to 2 N.m.

To replace a fuse, isolate the supply, open the hinged carrier, remove the blown fuse, check the circuit for the cause of the failure and fit a new fuse of the same type and rating. Do not bridge the holder. Inspect terminals at each planned shutdown: fuse holders that carry load current close to rating often run warm, and a loose screw shows first as discolouration of the plastic. Because the A9N15636 is IP20, finger-safe access only applies once it is mounted behind a panel door or inside an enclosure.

How the A9N15636 isolates and protects

A fuse-disconnector combines two functions in one module. The cartridge fuse provides short-circuit and overload protection at its own characteristic, and the hinged carrier gives a visible, tool-free means to open the circuit for maintenance. For this unit the datasheet lists both aM and gG cartridges: gG (general purpose) covers cables and mixed loads, while aM is a motor-circuit fuse that only provides short-circuit protection and must be paired with a thermal overload relay. Which one you choose, and the amperage, sets what the circuit is protected against; the module is only the holder.

Only one pole and one fuse are carried here, so a three-phase circuit needs three of these modules side by side or a multi-pole STI such as the A9N15656.

Documents and quotation

The manufacturer’s product datasheet for the A9N15636 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 A9N15636 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.