ABB OTHV1250E04 4 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 OTHV1250E04 (1SCA162932R1001) is a heavy-duty 4-pole switch disconnector engineered to provide safe electrical isolation and dependable switching for high-current industrial power distribution systems. As part of the proven ABB OTHV switch disconnector range, it is designed for demanding applications operating between 800 and 1000 V AC, delivering outstanding reliability in industrial and commercial installations.
Designed in accordance with IEC 60947-3, the OTHV1250E04 combines robust construction with high switching performance and long mechanical life. Its 4-pole front-operated, base-mounted design allows simultaneous switching of the neutral conductor, making it ideal for installations requiring complete circuit isolation. The operating handle and shaft are supplied separately.
With a 1600 A conventional thermal current, a 1250 A AC-21A/AC-22A operational current, an 800 A AC-23A operational current at 800 V AC and a 4-pole configuration, the OTHV1250E04 is ideally suited to industrial switchboards, renewable energy installations, motor control centres and heavy-duty electrical distribution systems.
The ABB OTHV1250E04 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.
The four-pole configuration enables simultaneous switching of the neutral conductor, making it particularly suitable for industrial switchboards, renewable energy systems and OEM power distribution equipment where complete circuit isolation is required.
| Current | 1600 A |
|---|---|
| Voltage | 800 V |
| Phase | Three Phase |
| IP Rating | IP00 |
| Manufacturer | ABB |
| Series | OTHV Switch Disconnectors |
| Model | OTHV1250E04 |
| Manufacturer Part Number | 1SCA162932R1001 |
| EAN | 6417019928845 |
| Product type | Switch disconnector |
| Number of poles | 4 |
| 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 |
| Protection rating | IP00 |
| Terminal type | Bolt connection |
| Mounting type | Base mounted |
| Dimensions (H × W × D) | 372 × 414.5 × 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 fourth pole enables simultaneous switching of the neutral conductor, providing complete circuit isolation where required.
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...