OT1250E12W4
Product ID:82427
Updated: 2026/4/3

Key Features
- 1Install easily with the 3-pole front-operated design. 2、Mount flexibly using base mounting compatibility. 3、Setup completely with the included terminal bolt kit. 4、Accommodate diverse applications with wide phase distance. 5、Rely on high reliability from trusted ABB engineering.
Technical Specifications
Detailed engineering parameters
| Parameter | Value | Parameter | Value |
|---|---|---|---|
| Degree of Protection | Front IP00 | Environmental Information | 1SCC301233D0201 |
| Pollution Degree | 3 | Product Net Width | 334.5 mm |
| Product Net Height | 306 mm | Product Net Depth / Length | 145.5 mm |
| Product Net Weight | 15.9 kg | Conventional Free-air Thermal Current (Ith) | Π= 40 °C 1250 A |
| Conventional Thermal Current (Ithe) | Fully Enclosed 1250 A | Degree of Protection | Front IP00 |
| Distance Between Phases | Phase distance 140 mm | Handle Type | Handle and shaft not included |
| Lock Type | No | Mechanical Durability | 6000 |
| 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 29 W |
| Rated Impulse Withstand Voltage (Uimp) | 12 kV | Rated Insulation Voltage (Ui) | acc. to IEC/EN 60664-1 1000 V |
| Rated Operational Current AC-21A (Ie) | (380 ... 415 V) 1250 A (500 V) 1250 A (690 V) 1250 A | Rated Operational Current AC-22A (Ie) | (380 ... 415 V) 1250 A (500 V) 1250 A (690 V) 1250 A |
| Rated Operational Current AC-23A (Ie) | (380 ... 415 V) 1250 A (500 V) 1250 A (690 V) 1250 A | Rated Operational Power AC-23A (Pe) | (400 ... 415 V) 710 kW (500 V) 900 kW (690 V) 1200 kW |
| Rated Operational Voltage | Main Circuit 1000 V | Rated Short-Circuit Making Capacity (Icm) | (690 V) 110 kA |
| Rated Short-time Withstand Current Low Voltage (Icw) | for 1 s 50 kA | Special Functions | Wide phase distance 140 |
| Standards | IEC 60947-3 | Switches Operating Mechanism | Mechanism Between the Poles 12 (Between the Poles) |
| Terminal Type | Lug terminals | Tightening Torque | acc. IEC 60947-1 50 ⦠75 N·m |
| Tightening Torque | acc. IEC 60947-1 50 ⦠75 N·m | Object Classification Code | Q |
| ETIM 8 | EC000216 - Switch disconnector | ETIM 9 | EC000216 - Switch disconnector (low voltage) |
| eClass | V11.1 : 27371403 | WEEE Category | 5. Small Equipment (No External Dimension More Than 50 cm) |
| Manufacturer ID | 1SCA106845R1001 |
Specifications may be subject to change without notice
