Product Model
OS250B02
Key Features
- 1Reliable Motor Protection: The OS250B02 switch fuses offer world-class performance in demanding applications, ensuring reliable motor protection.
- 2Easy Installation: Snap-on installation and adjustable mounting feet simplify the installation process, reducing time and costs.
- 3Safety Features: Interlocking fuse covers prevent opening while the switch is in the "ON" position, ensuring safety for authorized personnel.
- 4Modular Design: The modular design allows for 2-, 3-, and 4-pole installation with different positions of the switching mechanism to suit various needs.
- 5Time-Saving Accessories: Adjustable shafts, mounting feet, snap-on auxiliary contacts, and terminal shrouds significantly reduce installation time and costs.
Technical Specifications
Detailed engineering parameters based on manufacturer documentation
| Parameter | Value | Parameter | Value |
|---|---|---|---|
| Pollution Degree | 3 | Product Net Width | 199 mm |
| Product Net Height | 133 mm | Product Net Depth / Length | 130 mm |
| Product Net Weight | 2.6 kg 5.6 lb | Conventional Free-air Thermal Current (Ith) | Π= 40 °C 250 A |
| Conventional Thermal Current (Ithe) | Fully Enclosed 250 A | Fuse Size | B1-B3 |
| Fuse System | British Standard | Handle Type | Handle and shaft not included |
| Mounting Type | Base mounting | Number of Poles | 2 |
| Operating Mode | Front Operated | Pollution Degree | 3 |
| Position of Line Terminals | Top In - Bottom Out, Bottom In - Top Out | Power Loss | at Rated Operating Conditions per Pole 13 W |
| Rated Conditional Short-Circuit Current (Inc) | (690 V) 80 kA | Rated Current (In) | Main Circuit 250 A |
| Rated Impulse Withstand Voltage (Uimp) | 12 kV | Rated Insulation Voltage (Ui) | 1000 V |
| Rated Operational Current AC-21A (Ie) | (500 V) 250 A (690 V) 250 A | Rated Operational Current AC-22A (Ie) | (380 ... 415 V) 250 A (500 V) 250 A (690 V) 250 A |
| Rated Operational Current AC-23A (Ie) | (380 ... 415 V) 250 A (500 V) 250 A (690 V) 250 A | Rated Operational Power AC-23A (Pe) | (220 ... 240 V) 75 kW (400 V) 140 kW (415 V) 145 kW (500 V) 170 kW (690 V) 250 kW |
| Rated Operational Voltage | Main Circuit 690 V AC | Rated Short-time Withstand Current Low Voltage (Icw) | for 1 s 8 kiloampere rms |
| Standards | IEC 60947-3 | Switches Operating Mechanism | 02 (Left Side) |
| Terminal Type | Lug terminals | Terminal Width | 25 mm |
| Tightening Torque | 30 ... 44 N·m | Tightening Torque | 30 ... 44 N·m |
| Object Classification Code | Q | ETIM 8 | EC001040 - Fuse switch disconnector |
| ETIM 9 | EC001040 - Fuse switch disconnector | UNSPSC | 39122233 |
| IDEA Granular Category Code (IGCC) | 5291 >> Fuse switch disconnector | eClass | V11.1 : 27371401 |
| WEEE Category | 5. Small Equipment (No External Dimension More Than 50 cm) | Manufacturer ID | 1SCA022769R9360 |
Specifications may be subject to change without notice