Schneider Electric A9E18320 iIL Red Indicator Light 110-230 V

A9E18320 Acti9 iIL red indicator light: purpose and product description

The A9E18320 is a Schneider Electric Acti9 iIL modular pilot light with a single red LED. It is built into a standard DIN-rail module, two 9 mm pitches wide, so a status lamp can sit in the same row as the circuit breakers it reports on. The datasheet lists a rated supply voltage of 110 to 230 V AC at 50/60 Hz or 110 to 130 V DC. Seven Star LLC supplies the A9E18320 in Oman and the GCC as an independent supplier based in Muscat.

A pilot light is the simplest status device in a distribution board. A lit lamp confirms that a circuit has voltage, that a protective device has not tripped, or that a function is active. The red colour is normally chosen for alarms or for a live-state warning, and the LED type removes the need for lamp replacement in service.

Technical specifications of the A9E18320

Supply voltage and LED data of the A9E18320

The wide supply window is one of the most practical features of the A9E18320: the same module serves a 110 V circuit, a 230 V circuit and, on DC, a 110 to 130 V control supply, so one stock item covers several panels. The datasheet quotes the indicator as one red LED with a service life of 100,000 hours of constant light efficiency and a consumption of 0.3 W.

A consumption of 0.3 W is low enough that a dozen lamps on a board add less than 4 W of continuous load, and the heat is negligible inside the enclosure. The long LED life means that the lamp is not the part that needs a maintenance visit; a lit-or-dark status is available for the working life of the board.

Mounting, wiring and comb busbar compatibility of the A9E18320

The A9E18320 is mounted on a symmetrical DIN rail in the fixed mounting mode, with a height of 82 mm, a width of 18 mm and a depth of 69.5 mm. The colour is white (RAL 9003). The datasheet lists comb busbar and distribution block compatibility as the upside ProDis connection, which means the supply can be taken from a compatible busbar on the top instead of wiring the module by hand.

The auxiliary connection terminal is a tunnel type, taking one rigid conductor of 0.5 mm squared or two of 2.5 mm squared, as well as flexible conductors with and without ferrules, with a 9 mm stripping length and a 1 N.m tightening torque. For a pilot light the cross-section is more than sufficient; the practical point is to keep conductors short and tidy so that the row remains easy to read.

Protection degree and environment for the A9E18320

Protection is listed as IP2 with IPxx B, and the standard referenced is IEC 60947-5-1. This is a finger-safe, indoor, in-enclosure product: it expects the board door or cover to provide dust and moisture protection. Pollution degree 3 and tropicalisation 2 are listed, with relative humidity of 95 percent at 55 degrees C.

The ambient range is -35 to 70 °C for operation and -40 to 80 °C for storage. The upper operating limit of 70 degrees C is generous compared with many modular devices, but an LED lamp at the top of a hot board still ages faster, so a spare location at a lower row is preferable for lamps that must last.

Choosing a pilot light: the A9E18320 against other indicators

Not every indication task needs the same device. A single LED lamp such as the A9E18320 suits plain voltage presence or a simple alarm. When a board needs to show several states, or a mix of colours, a row of lamps in different colours is common, and combined indicators and push-buttons exist in other ranges. When a circuit must be monitored remotely, a lamp is not enough and an auxiliary contact or a communication-enabled device is needed.

The red colour also has a convention attached. In control panels red normally signals a fault, a stop or a warning condition, while green is used for running or healthy states. Picking a colour that matches the rest of the plant avoids confusion for operators who walk between several boards.

Typical uses of the A9E18320 in Oman and the GCC

In Gulf buildings the iIL red lamp is typically fitted next to a surge protection device or a main breaker to show that the supply is present, or beside a group of circuits that are fed from a stand-by source so that staff can see when the stand-by supply is active. In pumping and water-treatment panels it is used as a general alarm lamp for a circuit that should normally be dark.

Because the supply can be 110 to 230 V AC, the lamp can be placed across the line and neutral of the circuit it watches without a transformer. In hot, dusty outdoor boards the main care is the enclosure: with only IP2 on the module, door seals and filters protect the lamp, not the lamp itself.

Selection checklist for the A9E18320

• Supply voltage of the circuit to be watched: 110 to 230 V AC or 110 to 130 V DC
• Colour: red; other colours are different references
• Space: two 9 mm pitches with 69.5 mm depth
• Connection: tunnel terminal with 1 N.m torque, or a comb busbar on the upside
• Environment: IP2, closed enclosure, ambient range as given

Information to send with an RFQ for the A9E18320

• Reference (A9E18320) and quantity
• Circuit voltage and whether AC or DC
• Board type and the busbar system in use
• Delivery location and timing
• Spare or new-project purchase

Documents and quotation

A datasheet for the A9E18320 is attached on this page. It lists the electrical, mechanical and environmental data summarised above, and it should be read together with the manufacturer’s installation instructions for the final design.

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.