The Schneider Electric A9F74340 is an Acti9 iC60N miniature circuit breaker, 3P, 40A, curve C, for DIN-rail mounting in distribution boards and control panels.
When a breaker of this type trips repeatedly, check the load first; if the breaker itself is damaged or no longer latches, replace it with the same pole number, rating (40A) and curve (C).
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Technical data
| Schneider reference | A9F74340 |
|---|---|
| Product or component type | Miniature circuit-breaker |
| Device application | Distribution |
| Poles description | 3P |
| Number of protected poles | 3 |
| [In] rated current | 40 A |
| Network type | DC; AC |
| Trip unit technology | Thermal-magnetic |
| Curve code | C |
| Product compatibility | Vigi iC60 single terminal add-on residual current device 40/63 A; Quick Vigi iC60 single terminal add-on residual current device 40 A |
| Utilisation category | Category A conforming to EN/IEC 60947-2 |
| Suitability for isolation | Yes conforming to EN/IEC 60898-1; Yes conforming to EN/IEC 60947-2 |
| Network frequency | 50/60 Hz |
| [Ue] rated operational voltage | 12…133 V AC 50/60 Hz; 220…240 V AC 50/60 Hz; 380…415 V AC 50/60 Hz; 440 V AC 50/60 Hz; <= 180 V DC |
| Magnetic tripping limit | 8 x In +/- 20 % |
| Breaking capacity | 36 kA Icu at 12…133 V AC 50/60 Hz conforming to EN/IEC 60947-2; 20 kA Icu at 220…240 V AC 50/60 Hz conforming to EN/IEC 60947-2 |
| [Ics] rated service breaking capacity | 27 kA 75 % x Icu at 12…133 V AC 50/60 Hz conforming to EN/IEC 60947-2; 15 kA 75 % x Icu at 220…240 V AC 50/60 Hz conforming to EN/IEC 60947-2 |
| Limitation class | 3 conforming to EN/IEC 60898-1 |
| [Ui] rated insulation voltage | 500 V AC 50/60 Hz conforming to EN/IEC 60947-2 |
| Width | 54 mm |
| Tightening torque | 3.5 N.m top or bottom |
| Dimensions (W x H x D) | 54 x 85 x 78.5 mm |
| Condition | New, original Schneider Electric |
At a glance
- Miniature circuit breaker (MCB)
- Acti9 iC60N
- 3P
- 40A
- C curve
- 6000A (IEC/EN 60898-1)
- 10kA (IEC/EN 60947-2)
Typical applications
- Protection of control-circuit and auxiliary supplies
- Protection of small motors, heaters and transformers
- Lighting and socket circuits in plants and workshops
- Replacement of a damaged or worn breaker
Compatibility and replacement
Match poles (3P), rated current (40A), curve (C) and breaking capacity when replacing. Schneider lists these compatible add-ons: Vigi iC60 single terminal add-on residual current device 40/63 A; Quick Vigi iC60 single terminal add-on residual current device 40 A.
Frequently asked questions
Which tripping curve does it have?
Curve C; Schneider gives the magnetic tripping limit as 8 x In +/- 20 %.
Can I add residual current protection?
Yes. Schneider lists Vigi iC60 single terminal add-on residual current device 40/63 A as a compatible add-on.
What is its breaking capacity?
Per Schneider: 6000 A Icn at 400 V AC 50/60 Hz; 20 kA Icu at 220…240 V AC 50/60 Hz.
Which voltages is it rated for?
Per Schneider: 12…133 V AC 50/60 Hz; 220…240 V AC 50/60 Hz; 380…415 V AC 50/60 Hz; 440 V AC 50/60 Hz; <= 180 V DC.
Can I get a price and delivery time?
Prices are quoted on request. Send the order number, quantity and delivery country on WhatsApp and we will reply with price and delivery time; air shipping is usually 5 to 7 days once ready, with a 1-year warranty.
Ordering tips
Send us the full order number from the label of the old part, or a clear photo of the label, together with the quantity you need. We check the number against the current manufacturer data before we quote and tell you if there is a newer replacement.
Need it fast? Send the order number, quantity and delivery country on WhatsApp or through the inquiry form and we reply with a quotation the same working day. All parts are new and original, covered by a 1-year warranty, and ship worldwide by air in 5 to 7 days once ready (shipping, payment and warranty). Local agents: Saudi Arabia, Iraq, the UAE, Egypt, Oman, Libya, Morocco, Mauritania, Yemen, Algeria and Jordan.
