ABB OTHV1250E03 3 pole switch disconnector for 800 to 1000 V AC industrial power distribution with 1600 A thermal current and 1250 A AC-21A/22A operational current.
The ABB OTHV1250E03 (1SCA162930R1001) is a heavy-duty 3-pole switch disconnector designed to provide safe electrical isolation and reliable switching in high-current industrial power distribution systems. Part of the proven ABB OTHV switch disconnector range, it is engineered for demanding applications operating between 800 and 1000 V AC.
Designed in accordance with IEC 60947-3, the OTHV1250E03 combines high current capability, robust construction and long mechanical life. This front-operated, base-mounted switch disconnector delivers dependable isolation for maintenance and emergency switching applications. The operating handle and shaft are supplied separately.
With a 1600 A conventional thermal current, a 1250 A AC-21A/AC-22A operational current and an 800 A AC-23A operational current at 800 V AC, the OTHV1250E03 is ideal for industrial switchboards, renewable energy installations, motor control centres and heavy-duty power distribution systems.
The ABB OTHV1250E03 safely isolates high-current electrical circuits while providing dependable switching performance in demanding industrial environments. Its rugged construction ensures long service life and dependable operation where electrical safety is critical.
Designed for industrial switchboards, renewable energy systems and OEM power distribution equipment, the OTHV1250E03 provides secure electrical isolation whilst supporting reliable system maintenance and operational continuity.
| Current | 1600 A |
|---|---|
| Voltage | 800 V |
| Phase | Three Phase |
| IP Rating | IP00 |
| Manufacturer | ABB |
| Series | OTHV Switch Disconnectors |
| Model | OTHV1250E03 |
| Manufacturer Part Number | 1SCA162930R1001 |
| EAN | 6417019928821 |
| Product type | Switch disconnector |
| Number of poles | 3 |
| Rated operational voltage | 800 to 1000 V AC |
| Conventional thermal current (Ith) | 1600 A |
| Rated operational current AC-21A/22A | 1250 A |
| Rated operational current AC-23A | 800 A at 800 V AC |
| Rated insulation voltage (Ui) | 1000 V |
| Rated impulse withstand voltage (Uimp) | 12 kV |
| Rated short-circuit making capacity (Icm) | 110 kA |
| Protection rating | IP00 |
| Terminal type | Bolt terminals |
| Mounting type | Base mounted |
| Mechanical durability | 6,000 operating cycles |
| Dimensions (H × W × D) | 372 × 334.5 × 167 mm |
| HS Code | 85365080 |
| Country of Manufacture | Finland |
It is used to safely isolate and switch high-current electrical circuits within industrial power distribution systems.
The switch has a 1600 A conventional thermal current, a 1250 A AC-21A/AC-22A operational current and an 800 A AC-23A operational current at 800 V AC.
No. The operating handle and operating shaft must be ordered separately.
The OTHV1250E03 is designed for electrical systems operating between 800 and 1000 V AC.
It is designed and tested in accordance with IEC 60947-3.
ABB OTHV switch disconnectors are trusted worldwide by electrical engineers, OEMs and panel builders for dependable isolation, robust construction and long-term reliability in demanding industrial power distribution applications.
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2025 has been a big year for LED Controls, and our blog has expanded accordingly. We've covered a wide range of topics across industrial control and factory automation this year. From core technology explainers and new product releases to panel building best practice...
2025 has been a big year for LED Controls, and our blog has expanded accordingly. We've covered a wide range of topics across industrial control and factory automation this year. From core technology explainers and new product releases to panel building best practice...