Product Model
OS250B04F
Selling Points
- 1Reliable Motor Protection: Designed for extreme conditions, the OS250B04F switch fuse provides world-class performance in demanding applications.
- 2Easy Installation: Modular design with adjustable shaft and snap-on auxiliary contacts reduces installation time and costs by up to 50%.
- 3Safety Features: Interlocking fuse covers prevent opening while the switch is in the "ON" position, ensuring safety for personnel.
- 4High Current Rating: Rated for 250A maximum current, suitable for various industrial applications.
- 5Compliance and Standards: Meets IEC 60947-3 standards, ensuring high dielectric strength and impulse withstand voltage.
Technical Specifications
Detailed engineering parameters based on manufacturer documentation
| Parameter | Value | Parameter | Value |
|---|---|---|---|
Pollution Degree | 3 | Product Net Width | 154 mm |
Product Net Height | 262 mm | Product Net Depth / Length | 193 mm |
Product Net Weight | 4.7 kg | Cable Cross-Section | 2.5 ... 25 mm² |
Conventional Free-air Thermal Current (Ith) | Π= 40 °C 250 A | Conventional Thermal Current (Ithe) | Fully Enclosed 250 A |
Fourth Pole Type | Switched - Fusible Pole | Fuse Size | B1-B3 |
Fuse System | British Standard | Handle Type | Handle and shaft not included |
Mounting Type | Base mounting | Number of Poles | 4 |
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 | 04 (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 | 1SCA109110R1001 |
Specifications may be subject to change without notice