T4L 250 TMA 125-1250 4p F F InN=100%In
Product ID:75774
Updated: 2026/4/11

Key Features
- 1Deliver 250A rated current for demanding industrial power distribution. 2、Ensure reliable overload and short-circuit protection with thermomagnetic release (TMA). 3、Meet global safety standards including IEC 60947 for compliance. 4、Withstand 8000 electrical and 20000 mechanical cycles for longevity. 5、Simplify integration in transformer and generator protection applications.
Technical Specifications
Detailed engineering parameters
| Parameter | Value | Parameter | Value |
|---|---|---|---|
| Environmental Information | 9AKK10103A1057 | Product Net Width | 140 mm |
| Product Net Height | 205 mm | Product Net Depth / Length | 103.5 mm |
| Product Net Weight | 3.05 kg | Product Main Type | SACE Tmax T |
| Product Name | Moulded Case Circuit Breaker | Product Type | Automatic Circuit Breaker |
| Suitable For | T4 | Suitable for Product Class | Moulded Case Circuit Breakers |
| Version | F | Electrical Durability | 8000 cycle 120 cycles per hour |
| Mechanical Durability | 20000 cycle 240 cycles per hour | Number of Poles | 4 |
| Power Loss | at Rated Operating Conditions per Pole 6.2 W | Rated Current (In) | 125 A |
| Rated Impulse Withstand Voltage (Uimp) | 8 kV | Rated Insulation Voltage (Ui) | 1000 V |
| Rated Operational Voltage | 690 V AC 750 V DC | Rated Service Short-Circuit Breaking Capacity (Ics) | (220 V AC) 200 kA (230 V AC) 200 kA (380 V AC) 120 kA (400 V AC) 120 kA (415 V AC) 120 kA (440 V AC) 100 kA (500 V AC) 85 kA (690 V) 70 kA |
| Rated Ultimate Short-Circuit Breaking Capacity (Icu) | (220 V AC) 200 kA (230 V AC) 200 kA (380 V AC) 120 kA (400 V AC) 120 kA (415 V AC) 120 kA (440 V AC) 100 kA (500 V AC) 85 kA (690 V AC) 70 kA (250 V DC) 2 Poles in Series 100 kA (500 V DC) 2 Poles in Series 70 kA (750 V DC) 3 Poles in Series 50 kA | Rated Uninterrupted Current (Iu) | 250 A |
| Release | TMA | Release Type | TM |
| Short-Circuit Performance Level | L | Standards | IEC |
| Sub-type | T4 | Terminal Connection Type | Fixed Circuit-Breakers Front |
| Test Voltage Max (Utest) | 3500 V | Test Voltage at Industrial Frequency for 1 Minute | 3500 V |
| ETIM 8 | EC000228 - Power circuit-breaker for trafo/generator/installation protection | Object Classification Code | Q |
| UNSPSC | 39121100 | WEEE Category | 5. Small Equipment (No External Dimension More Than 50 cm) |
| eClass | V11.1 : 27370409 | Manufacturer ID | 1SDA054283R1 |
Specifications may be subject to change without notice
