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The Schneider Electric A9F44320 is a 20A three pole circuit breaker from the Acti9 iC60N Disbo range. It protects a three phase circuit against overload and short circuit, and all three phases trip together. The A9F44320 has a C curve and is rated 6000A Icn at 400V AC to EN/IEC 60898-1. It clips onto DIN rail and takes up three modules.
A 20A three phase circuit typically feeds fixed plant: a commercial oven, a heating bank, an extraction fan or a pump set. Motors and compressors on those circuits draw several times their running current for the first few cycles of a start. A C curve allows for that. Magnetic trip is set at eight times rated current, around 160A on a 20A device, so a normal start will not trip the A9F44320 while a genuine short circuit still will.
The A9F44320 is three modules wide, so it fits a standard three phase way on the rail. Mechanical endurance is 20000 operating cycles against 10000 electrical, which covers a circuit switched regularly for cleaning or servicing. Terminals take 25mm² rigid or 16mm² flexible conductor at 2 N.m.
The A9F44320 is not a residual current device and provides no earth leakage protection on its own. It is rated IP20, so installation must be inside a switchboard or enclosure, and the breaker is not suitable for exposed or wet positions. Rated voltage stops at 440V AC and 180V DC, so the device must not be fitted above those limits.
(A9F44320)
The A9F44320 protects a three phase circuit against overload and short circuit. A bimetallic element trips on sustained overcurrent, and a solenoid trips within milliseconds on a fault. All three poles open together, and the toggle is reset by hand once the fault is cleared.
The breaker conforms to EN/IEC 60898-1 and EN/IEC 60947-2. Rated short-circuit capacity is 6000A Icn at 400V AC under 60898-1, and 10kA Icu at 380 to 415V AC under 60947-2. Utilisation category is A, rated insulation voltage 500V AC, impulse withstand 6kV.
Installation or replacement inside a switchboard must be carried out by a licensed electrician under AS/NZS 3000. The breaker clips onto DIN rail without tools. Terminals are tightened to 2 N.m with 14mm of insulation stripped from the conductor.
A C curve trips magnetically at 8 times rated current plus or minus 20 percent, which is roughly 160A at 20A. That headroom rides through motor starting and transformer magnetising inrush that would trip a B curve device.
Mechanical endurance is 20000 operating cycles and electrical endurance is 10000 cycles under EN/IEC test conditions. A breaker used as a regular isolation point for servicing sits well inside that figure over a normal switchboard life.
Earth leakage protection is not built into the Acti9 iC60N Disbo. The device covers overload and short circuit only. Residual current protection comes from a separate add-on block fitted alongside it on the rail, or from a combined residual current breaker on that circuit.
Schneider Electric states an 18 month contractual warranty on the A9F44320, covering manufacturing defects. Claims are made through Schneider Electric, or through Sparky Direct, with proof of purchase and the date of installation.
The Schneider Electric A9F44320 is available online from Sparky Direct, with Australia-wide delivery to any state or territory including regional areas. Sparky Direct is an Australian electrical wholesaler established in 2005, supplying more than 500,000 customers with transparent trade pricing.
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Warranty starts from Invoice Date
Domestic Use: 18 Months
Commercial Use: 18 Months
Warranty Method: Clipsal in home warranty
These specifications and characteristics outline physical, mechanical, electrical details.
| Brand | Clipsal by Schneider Electric |
| SKU | A9F44320 |
| Model # | A9F44320 |
| Barcode # | 3606480513428 |
| Package Weight | 0.319kg |
| TYPE | VALUE |
|---|---|
| Type | Circuit Protection |
| Brand | Schneider Electric |
| Range | Acti9 |
| Colour | White |
| Rated Current (A) | 20 |
| Height (mm) | 85 |
| Width (mm) | 54 |
| Depth (mm) | 78.5 |
| Protection | C Curve |
| Voltage (V) | 415 |
| Number of Poles | 3 |
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