OS400J30
Product ID:87646
Updated: 2026/4/3
Key Features
- 1Provide reliable 400 A motor protection. 2、Support 125 hp at 240 VAC, 250 hp at 480 VAC, and 350 hp at 600 VAC. 3、Operate easily with a front-operated mechanism for quick fault clearance. 4、Prevent opening with interlocked fuse covers while the switch is ON for safety. 5、Install and maintain easily in extreme conditions with a modular design.
Technical Specifications
Detailed engineering parameters
| Parameter | Value | Parameter | Value |
|---|---|---|---|
| Pollution Degree | 3 | Product Net Width | 255 mm |
| Product Net Height | 230 mm | Product Net Depth / Length | 176 mm |
| Product Net Weight | 6.4 kg 14.11 lb | Conventional Free-air Thermal Current (Ith) | Π= 40 °C 400 A |
| Conventional Thermal Current (Ithe) | Fully Enclosed 400 A | Fuse Size | 400 A |
| Fuse System | Class J | Handle Type | Handle and shaft not included |
| Mounting Type | Base mounting | Number of Poles | 3P |
| 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 600 V AC | Rated Short-time Withstand Current Low Voltage (Icw) | for 1 s 14 kiloampere rms |
| Standards | UL98 IEC 60947-3 | Switches Operating Mechanism | 30 (Right Side) |
| Terminal Type | Lug terminals | Terminal Width | 25 mm |
| Tightening Torque | 30 ... 44 N·m | Ampere Rating | 400 A |
| Horsepower Rating UL/CSA | (acc. to UL 240 V) 125 Hp (acc. to UL 480 V) 250 Hp (acc. to UL 600 V) 350 Hp | Tightening Torque | 30 ... 44 N·m |
| Tightening Torque UL/CSA | Wire-Clamp 375 in·lb Cable Lug 240 in·lb | 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 | 1SCA022755R5010 |
Specifications may be subject to change without notice