XT3S 250 TMG 250-750 4p F F InN=100%
Product ID:86772
Updated: 2026/4/9
Key Features
- 1Deliver reliable protection with a 50 kA short-circuit breaking capacity. 2、Ensure extended service life by withstanding 8000 cycles at 240 cycles per hour. 3、Protect generator applications effectively using thermal magnetic release (TMG) technology. 4、Simplify installation and maintenance with front terminal and bolt connections. 5、Meet IEC standards for guaranteed high reliability and system safety.
Technical Specifications
Detailed engineering parameters
| Parameter | Value | Parameter | Value |
|---|---|---|---|
| Environmental Information | 9AKK108467A6707 | Product Net Width | 140 mm |
| Product Net Height | 150 mm | Product Net Depth / Length | 70 mm |
| Product Net Weight | 2.1 kg | Circuit Breaker Type to be Associated | Generator Protection |
| Product Main Type | SACE Tmax XT | Product Name | Moulded Case Circuit Breaker |
| Product Type | Automatic Circuit Breaker | Version | F |
| CAD Dimensional Drawing | 1SDH001295R0483 | Connecting Capacity Main Circuit | Busbar 85..192 mm² |
| Current Type | AC/DC | Electrical Durability | 120 cycles per hour 8000 cycle |
| Mechanical Durability | 240 cycles per hour 25000 cycle | Number of Poles | 4P |
| Opening Time | CB with SOR 15 ms CB with UVR 15 ms | Order Multiple | 1 piece |
| Power Loss | at Rated Operating Conditions per Pole 17.8 W | Rated Current (In) | 250 A |
| Rated Frequency (f) | 50 / 60 Hz | Rated Impulse Withstand Voltage (Uimp) | 8 kV |
| Rated Instantaneous Short-Circuit Current Setting (Ii) | 750 A | Rated Insulation Voltage (Ui) | 800 V |
| Rated Operational Voltage | 690 V AC 500 V DC | Rated Service Short-Circuit Breaking Capacity (Ics) | (220 V AC) 50 kA (230 V AC) 50 kA (240 V AC) 50 kA (380 V AC) 27 kA (415 V AC) 36 kA (440 V AC) 20 kA (500 V AC) 15 kA (525 V AC) 10 kA (690 V AC) 3 kA (250 V DC) 2 Poles in Series 27 kA (500 V DC) 3 Poles in Series 37.5 kA |
| Rated Ultimate Short-Circuit Breaking Capacity (Icu) | (220 V AC) 85 kA (230 V AC) 85 kA (240 V AC) 85 kA (380 V AC) 50 kA (415 V AC) 50 kA (440 V AC) 40 kA (500 V AC) 30 kA (525 V AC) 20 kA (690 V AC) 6 kA (250 V DC) 2 Poles in Series 36 kA (500 V DC) 3 Poles in Series 50 kA | Rated Uninterrupted Current (Iu) | 250 A |
| Rated Voltage (Ur) | 690 V | Recommended Screw Driver | Main Circuit M8 |
| Release | TMG | Release Type | TM |
| Setting Range | 175...250 A | Short-Circuit Performance Level | S |
| Standards | IEC60947-2 | Sub-type | XT3 |
| Terminal Connection Type | Front | Terminal Type | Bolt |
| Tightening Torque | 8 N·m | ETIM 8 | EC000228 - Power circuit-breaker for trafo/generator/installation protection |
| ETIM 9 | EC000228 - Power circuit-breaker for trafo/generator/installation protection | Object Classification Code | Q |
| UNSPSC | 39120000 | WEEE Category | 5. Small Equipment (No External Dimension More Than 50 cm) |
| eClass | V11.1 : 27370409 | Manufacturer ID | 1SDA068278R1 |
Specifications may be subject to change without notice