Product Model
A3N 400 MF 320-3840 3p F F

Selling Points
- 1High Short-Circuit Making Capacity: Rated up to 187 kA at 240 V AC and 75.6 kA at 380 V AC.
- 2Reliable Operation: Designed with a thermomagnetic release (TMF) for consistent performance.
- 3Versatile Application: Suitable for transformer, generator, and installation protection.
- 4Durable Construction: Withstands 2000 electrical cycles and 5000 mechanical cycles.
- 5Compliant with Standards: Meets IEC standards for safety and reliability.
Technical Specifications
Detailed engineering parameters based on manufacturer documentation
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