OT250E21
Product ID:72860
Updated: 2026/4/3
Key Features
- 1Ensure reliable 250A operation in a compact design. 2、Withstand extreme conditions for safe cabinet access. 3、Reduce energy consumption and optimize cabinet space. 4、Integrate ELCB, MCB, MCCB, RCBO, and RCCB protection. 5、Source competitively with global delivery from TME/Eltra.
Technical Specifications
Detailed engineering parameters
| Parameter | Value | Parameter | Value |
|---|---|---|---|
| Degree of Protection | Front IP00 | Environmental Information | 1SCC301265D0201 |
| Pollution Degree | 3 | Product Net Width | 150.5 mm |
| Product Net Height | 150 mm | Product Net Depth / Length | 82.5 mm |
| Product Net Weight | 1.3 kg | Conventional Free-air Thermal Current (Ith) | Π= 40 °C 250 A |
| Conventional Thermal Current (Ithe) | Fully Enclosed 250 A | Degree of Protection | Front IP00 |
| Distance Between Phases | Standard | Handle Type | Handle and shaft not included |
| Lock Type | No | Mechanical Durability | 20000 |
| 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 6.5 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) 250 A (500 V) 250 A (690 V) 250 A | Rated Operational Current AC-22A (Ie) | (380 ... 415 V) 250 A (500 V) 250 A (690 V) 250 A |
| Rated Operational Current AC-23A (Ie) | (380 ... 415 V) 250 A (500 V) 250 A (690 V) 250 A | Rated Operational Power AC-23A (Pe) | (220 ... 240 V) 75 kW (400 ... 415 V) 145 kW (500 V) 170 kW (690 V) 250 kW |
| Rated Operational Voltage | Main Circuit 1000 V | Rated Short-Circuit Making Capacity (Icm) | (690 V) 30 kA |
| Rated Short-time Withstand Current Low Voltage (Icw) | for 1 s 8 kA | Special Functions | No |
| Standards | IEC 60947-3 | Switches Operating Mechanism | Mechanism Between the Poles 21 (Between the Poles) |
| Terminal Type | Lug terminals | Tightening Torque | acc. IEC 60947-1 15 ⦠22 N·m |
| Tightening Torque | acc. IEC 60947-1 15 ⦠22 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 | 1SCA022731R1900 |
Specifications may be subject to change without notice