OS125BS40N1W
Product ID:70719
Updated: 2026/4/3

Key Features
- 1Install flexibly with adjustable feet for top or side mounting. 2、Operate safely using a double-insulated external handle. 3、Simplify cable routing with high terminal positioning. 4、Ensure versatile compatibility with DIN, BS, NFC, UL, and CSA fuse links. 5、Enhance safety with lockable fuse covers in the OFF-position.
Technical Specifications
Detailed engineering parameters
| Parameter | Value | Parameter | Value |
|---|---|---|---|
| Environmental Information | 1SCC311002D0201 | Product Net Width | 229 mm |
| Product Net Height | 144 mm | Product Net Depth / Length | 113 mm |
| Product Net Weight | 1.80 kg | Conventional Free-air Thermal Current (Ith) | Π= 40 °C 125 A |
| Conventional Thermal Current (Ithe) | Fully Enclosed 125 A | Fuse Size | A2, A3, A4 |
| Fuse System | British Standard | Fuse Type | BS |
| Handle Type | Not included | Number of Poles | 4P |
| Operating Mode | Side Operated | Position of Line Terminals | Top In - Bottom Out Bottom In - Top Out |
| Power Loss | at Rated Operating Conditions per Pole 5 W | Rated Operational Current AC-21A (Ie) | (380 ... 415 V) 125 A (500 V) 125 A (690 V) 125 A |
| Rated Operational Current AC-22A (Ie) | (380 ... 415 V) 125 A (500 V) 125 A (690 V) 125 A | Rated Operational Current AC-23A (Ie) | (500 V) 125 A (380 ... 415 V) 125 A |
| Rated Operational Current AC-23B (Ie) | (380 ... 415 V) 125 A (500 V) 125 A (690 V) 125 A | Rated Operational Power AC-23A (Pe) | (500 V) 55 kW (690 V) 110 kW (400 V) 55 kW (415 V) 55 kW (220 ... 240 V) 37 kW |
| Rated Operational Voltage | 690 V AC | Switches Operating Mechanism | Mechanism at the End of the Switch |
| Terminal Width | 20 mm | Object Classification Code | Q |
| ETIM 8 | EC001040 - Fuse switch disconnector | Manufacturer ID | 1SCA022552R4220 |
Specifications may be subject to change without notice
