A3N 400 MF 320-3840 3p F F
Product ID:70636
Updated: 2026/4/4

Key Features
- 1Withstand high short-circuit currents up to 187 kA at 240 V AC. 2、Ensure reliable operation with a dedicated magnetic release mechanism. 3、Protect transformers, generators, and installations effectively. 4、Achieve long service life with 2000 electrical cycles. 5、Meet key IEC standards for safety and compliance.
Technical Specifications
Detailed engineering parameters
| Parameter | Value | Parameter | Value |
|---|---|---|---|
| Environmental Information | 1SDL000185R001 9AKK108467A6707 | Product Net Width | 139.5 mm |
| Product Net Height | 205 mm | Product Net Depth / Length | 103.5 mm |
| Product Net Weight | 4.75 kg | Product Main Type | SACE FORMULA DSA |
| Product Name | Moulded Case Circuit Breaker | Product Type | Automatic Circuit Breaker |
| Version | F | Electrical Durability | 2000 cycle |
| Mechanical Durability | 5000 cycle | Number of Poles | 3P |
| Rated Current (In) | Main Circuit 320 A | Rated Impulse Withstand Voltage (Uimp) | 6 kV |
| Rated Insulation Voltage (Ui) | 690 V | Rated Operational Voltage | 550 V AC 250 V DC |
| Rated Service Short-Circuit Breaking Capacity (Ics) | (240 V AC) 42.5 kA (380 V AC) 18 kA (415 V AC) 18 kA (440 V AC) 18 kA (480 V AC) 12.5 kA (500 V AC) 10 kA (250 V DC) 2 Poles in Series 18 kA | Rated Ultimate Short-Circuit Breaking Capacity (Icu) | (240 V AC) 85 kA (380 V AC) 36 kA (415 V AC) 36 kA (440 V AC) 36 kA (480 V AC) 25 kA (500 V AC) 20 kA (250 V DC) 2 Poles in Series 36 kA |
| Rated Uninterrupted Current (Iu) | 400 A | Release | MF |
| Release Type | M | Short-Circuit Performance Level | N |
| Standards | IEC | Sub-type | A3 |
| Terminal Connection Type | Front | ETIM 8 | EC000228 - Power circuit-breaker for trafo/generator/installation protection |
| ETIM 9 | EC000228 - Power circuit-breaker for trafo/generator/installation protection | WEEE Category | 5. Small Equipment (No External Dimension More Than 50 cm) |
| eClass | V11.1 : 27370409 | Manufacturer ID | 1SDA076729R1 |
Specifications may be subject to change without notice
