OT400US03K
Product ID:87748
Updated: 2026/7/15

Key Features
- 1Reduce shock risk with finger-proof dead front construction and terminal shrouds.
- 2Ensure clear operation via modular design with position indication and quick make/break.
- 3Secure the OFF position by padlocking the handle with up to three padlocks.
- 4Protect contacts and ensure reliability with welded construction and superior short circuit protection.
- 5Install easily in motor and control panel applications using the surface mount design.
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Technical Specifications
Detailed engineering parameters
| Parameter | Value | Parameter | Value |
|---|---|---|---|
| Degree of Protection | Front IP00 | Environmental Information | 1SCC301266D0201 |
| Pollution Degree | 3 | Product Net Width | 281.2 mm |
| Product Net Height | 220 mm | Product Net Depth / Length | 105 mm |
| Product Net Weight | 3.6 kg 7.9 lb | Conventional Thermal Current (Ithe) | Fully Enclosed 400 A |
| Degree of Protection | Front IP00 | Handle Color | Black |
| Handle Type | Handle and shaft not included | Lock Type | Yes |
| Mechanical Durability | 16000 | Mounting Type | Base mounting |
| Number of Poles | 3P | Pollution Degree | 3 |
| Power Loss | at Rated Operating Conditions per Pole 10 W | Rated Impulse Withstand Voltage (Uimp) | 12 kV |
| Rated Insulation Voltage (Ui) | acc. to IEC/EN 60664-1 1000 V | 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 Voltage | Main Circuit 1000 V |
| Rated Short-Circuit Making Capacity (Icm) | (690 V) 65 kA | Rated Short-time Withstand Current Low Voltage (Icw) | for 1 s 15 kA |
| Standards | IEC 60947-3 / UL 98 / CSA C22.2 NO.4 | Terminal Type | Lug terminals |
| Tightening Torque | acc. IEC 60947-1 42.4 N·m | Maximum Operating Voltage UL/CSA | 600 V |
| Ampere Rating | 400 A | Horsepower Rating UL/CSA | (acc. to UL 200 V) 100 Hp (acc. to UL 208 V) 100 Hp (acc. to UL 240 V) 125 Hp (acc. to UL 480 V) 250 Hp (acc. to UL 600 V) 350 Hp |
| Tightening Torque | acc. IEC 60947-1 42.4 N·m | Object Classification Code | Q |
| ETIM 8 | EC000216 - Switch disconnector | eClass | V11.1 : 27371403 |
| WEEE Category | 5. Small Equipment (No External Dimension More Than 50 cm) | Manufacturer ID | 1SCA022870R6880 |
Specifications may be subject to change without notice
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