Rated 50A with 4P, the Schneider A9F74450 belongs to the Acti9 iC60N family of modular circuit breakers, one of the most common breaker ranges in industrial and building panels.
A miniature circuit breaker protects the cable behind it: the thermal element trips on sustained overload and the magnetic element trips almost instantly on a short circuit. After the fault is cleared the breaker is simply switched back on.
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Technical data
| Schneider reference | A9F74450 |
|---|---|
| Product or component type | Miniature circuit-breaker |
| Device application | Distribution |
| Poles description | 4P |
| Number of protected poles | 4 |
| [In] rated current | 50 A |
| Network type | DC; AC |
| Trip unit technology | Thermal-magnetic |
| Curve code | C |
| Product compatibility | Vigi iC60 single terminal add-on residual current device 63 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; <= 250 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 | 72 mm |
| Tightening torque | 3.5 N.m top or bottom |
| Dimensions (W x H x D) | 72 x 85 x 78.5 mm |
| Condition | New, original Schneider Electric |
At a glance
- Miniature circuit breaker (MCB)
- Acti9 iC60N
- 4P
- 50A
- 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 (4P), rated current (50A), curve (C) and breaking capacity when replacing. Schneider lists these compatible add-ons: Vigi iC60 single terminal add-on residual current device 63 A.
Frequently asked questions
Can I add residual current protection?
Yes. Schneider lists Vigi iC60 single terminal add-on residual current device 63 A as a compatible add-on.
How wide is it on the DIN rail?
72 mm per Schneider.
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; <= 250 V DC.
Which tripping curve does it have?
Curve C; Schneider gives the magnetic tripping limit as 8 x In +/- 20 %.
Do you ship to my country, and what is the warranty?
Yes. RendatSP ships worldwide from Yiwu, China, by air in 5 to 7 days once the part is ready, and every part carries a 1-year warranty. Send the order number and quantity on WhatsApp and we will reply with a quotation.
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.
Every part RendatSP supplies is new and original, carries a 1-year warranty and ships worldwide by air in 5 to 7 days once ready (shipping, payment and warranty). Send us the order number and quantity on WhatsApp or through the inquiry form and we will quote the same working day. Agents in Saudi Arabia, Iraq, the UAE, Egypt, Oman, Libya, Morocco, Mauritania, Yemen, Algeria and Jordan.
