Product Model
OS1250DA04N2
Selling Points
- 1Reliable Motor Protection: Designed for extreme conditions, the OS1250DA04N2 switch fuse ensures reliable motor protection in heavy industrial settings.
- 2Easy Installation: Modular design with adjustable shaft and snap-on auxiliary contacts simplifies installation, reducing time and costs.
- 3Self-Cleaning Contacts: The knife contact design keeps contacts pushed firmly together, maintaining performance without damaging the switch.
- 4Safety Features: Interlocking fuse covers prevent opening while the switch is in the "ON" position, reducing the risk of electric shock.
- 5World-Class Performance: Engineered for high operational currents and voltages, the OS1250DA04N2 switch fuse delivers world-class performance in demanding applications.
Technical Specifications
Detailed engineering parameters based on manufacturer documentation
| Parameter | Value | Parameter | Value |
|---|---|---|---|
Pollution Degree | 3 | Product Net Width | 539 mm |
Product Net Height | 356 mm | Product Net Depth / Length | 294 mm |
Product Net Weight | 34 kg 74.96 lb | Conventional Free-air Thermal Current (Ith) | Π= 40 °C 1250 A |
Conventional Thermal Current (Ithe) | Fully Enclosed 1000 A | Fourth Pole Position | Right Side |
Fourth Pole Type | Switched - With Solid Link | Fuse Size | NH4a |
Fuse System | DIN | 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 75 W |
Rated Conditional Short-Circuit Current (Inc) | (690 V) 80 kA | Rated Current (In) | Main Circuit 1250 A |
Rated Impulse Withstand Voltage (Uimp) | 12 kV | Rated Insulation Voltage (Ui) | 1000 V |
Rated Operational Current AC-21A (Ie) | (380 ... 415 V) 1250 A (500 V) 1250 A (690 V) 1250 A | Rated Operational Current AC-21B (Ie) | (500 V) 1250 A (690 V) 1250 A |
Rated Operational Current AC-22A (Ie) | (380 ... 415 V) 1250 A | Rated Operational Current AC-22B (Ie) | (500 V) 1250 A (690 V) 1250 A |
Rated Operational Current AC-23A (Ie) | (380 ... 415 V) 1000 A | Rated Operational Current AC-23B (Ie) | (500 V) 1000 A (690 V) 1000 A |
Rated Operational Power AC-23A (Pe) | (220 ... 240 V) 315 kW (400 V) 560 kW (415 V) 560 kW (500 V) 710 kW (690 V) 1000 kW | Rated Operational Voltage | Main Circuit 690 V AC |
Rated Short-time Withstand Current Low Voltage (Icw) | for 1 s 40 kiloampere rms | Standards | IEC 60947-3 |
Switches Operating Mechanism | 04 (Left Side) | Terminal Type | Lug terminals |
Terminal Width | 50 mm | Tightening Torque | 50 ... 75 N·m |
Tightening Torque | 50 ... 75 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 | 4. Large Equipment (Any External Dimension More Than 50 cm) |
Manufacturer ID | 1SCA105242R1001 |
Specifications may be subject to change without notice