OS400B12BBP
Product ID:75802
Updated: 2026/4/4

Key Features
- 1Ensure reliable protection in extreme conditions with an IP65 rating. 2、Enhance operational safety using the padlockable external handle. 3、Simplify inventory and maintenance with broad fuse link compatibility. 4、Achieve easy installation via adjustable mounting feet. 5、Optimize cabinet space with flexible front or rear cabling options.
Technical Specifications
Detailed engineering parameters
| Parameter | Value | Parameter | Value |
|---|---|---|---|
| Pollution Degree | 3 | Product Net Width | 255 mm |
| Product Net Height | 194 mm | Product Net Depth / Length | 221 mm |
| Product Net Weight | 6.5 kg | Conventional Free-air Thermal Current (Ith) | Π= 40 °C 400 A |
| Conventional Thermal Current (Ithe) | Fully Enclosed 400 A | Fuse Size | B1-B4 |
| Fuse System | British Standard | Handle Type | Pistol handle and shaft included |
| Mounting Type | Base mounting | Number of Poles | 3 |
| Operating Mode | Front Operated | Pollution Degree | 3 |
| Position of Line Terminals | Back In - Back Out | Power Loss | at Rated Operating Conditions per Pole 30 W |
| Rated Conditional Short-Circuit Current (Inc) | (690 V) 80 kA | Rated Current (In) | Main Circuit 400 A |
| Rated Impulse Withstand Voltage (Uimp) | 12 kV | Rated Insulation Voltage (Ui) | 1000 V |
| Rated Operational Current AC-21A (Ie) | (500 V) 400 A (690 V) 400 A | Rated Operational Current AC-22A (Ie) | (380 ... 415 V) 400 A (500 V) 400 A (690 V) 400 A |
| Rated Operational Current AC-23A (Ie) | (380 ... 415 V) 400 A (500 V) 400 A (690 V) 400 A | Rated Operational Power AC-23A (Pe) | (220 ... 240 V) 132 kW (400 V) 220 kW (415 V) 230 kW (500 V) 280 kW (690 V) 400 kW |
| Rated Operational Voltage | Main Circuit 690 V AC | Rated Short-time Withstand Current Low Voltage (Icw) | for 1 s 14 kiloampere rms |
| Standards | IEC 60947-3 | Switches Operating Mechanism | 12 (Between the Poles) |
| 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 | 1SCA102254R1001 |
Specifications may be subject to change without notice
