OS400B40N2P
Product ID:75517
Updated: 2026/4/3

Key Features
- 1Operate the OS400B40N2P switch fuse easily from the front. 2、Protect circuits comprehensively with its 4-pole design. 3、Ensure reliability and safety by meeting British Standard. 4、Secure operation with the included handle and shaft. 5、Achieve reliable switching via the solid link design.
Technical Specifications
Detailed engineering parameters
| Parameter | Value | Parameter | Value |
|---|---|---|---|
| Pollution Degree | 3 | Product Net Width | 319 mm |
| Product Net Height | 230 mm | Product Net Depth / Length | 176 mm |
| Product Net Weight | 9.1 kg | Conventional Free-air Thermal Current (Ith) | Π= 40 °C 400 A |
| Conventional Thermal Current (Ithe) | Fully Enclosed 400 A | Fourth Pole Position | Right Side |
| Fourth Pole Type | Switched - With Solid Link | Fuse Size | B1-B4 |
| Fuse System | British Standard | Handle Type | Pistol handle and shaft 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 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 | 40 (Right 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 | 1SCA022753R1420 |
Specifications may be subject to change without notice
