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1SCA134578R1001 ABB OTDC25UST2 2 Pole 1000VDC 40A Switch Disconnector
MPN: 1SCA134578R1001
Alt. SKU: OTDC25UST2
Why Choose the OTDC25UST2 [1SCA134578R1001]
The OTDC25UST2 PV Disconnect Switch is designed for reliable isolation in photovoltaic systems. It supports a single circuit with a 25 A rating at 600 VDC (UL) and 660 VDC (IEC), and 16 A at 1000 VDC (IEC). The unit features door mounting and includes a terminal bolt kit; however, the handle and shaft must be ordered separately. This switch utilises a US single-wire break mechanism, ensuring secure disconnection in compliance with relevant standards.
Technical Specification
- Function: Photovoltaic disconnect switch with US single-wire break.
- Voltage Rating: 1000 V DC maximum operational voltage.
- Current Rating: 25 A rated operational current at 660 V DC.
- Contact Configuration: 2-pole, single circuit.
- Insulation & Impulse Rating: Rated insulation voltage 1000 V; impulse withstand voltage 8 kV.
- Protection Rating: Front IP20.
- Terminal Type & Size: Screw terminals for cable cross-section 2.5 to 16 mm² (12 to 6 AWG).
- Mechanical Data: Handle and shaft not included; door mounting; shaft diameter 6 mm.
- Short-Circuit Ratings: Conditional short-circuit current 10 kA; short-circuit making capacity 1 kA.
- Standards: UL508i and IEC 60947-1, -3 compliant.
Trusted By Customers Worldwide
"Specified by UK panel builders for dependable control." Controls Engineer, UK
Frequently Asked Questions
What is the maximum operational voltage for the OTDC25UST2 PV Disconnect Switch?
The maximum operational voltage is 1000 V DC.
What is the current rating of the OTDC25UST2?
The current rating is 25 A at 660 V DC.
What type of terminals does the OTDC25UST2 use?
The switch uses screw terminals for cable cross-section sizes ranging from 2.5 to 16 mm² (12 to 6 AWG).
Is the handle and shaft included with the OTDC25UST2?
No, the handle and shaft need to be ordered separately.
What is the protection rating of the OTDC25UST2?
The protection rating is IP20.
What standards does the OTDC25UST2 comply with?
The switch is compliant with UL508i and IEC 60947-1, -3. See the manufacturer's data sheet for standards and approvals.
| Alternative Product SKU | OTDC25UST2 |
|---|---|
| Manufacturer Part Number | 1SCA134578R1001 |
| Manufacturer | ABB |
| Barcode | 6417019633602 |
| Number of Poles | 2 Pole |
| Number of switches | 1 |
| Rated operating voltage | 1000 |
| Device construction | Built-in device fixed built-in technique |
| Type of control element | Other |
| Rated permanent current Iu | 40A |
| Voltage | 1000VDC |
| Degree of protection (IP) | IP20 |
| Nema Rating | 1 |
| Type of electric connection | Screw connection |
| Packed Quantity | 1 |
| Height | 74mm |
| Width | 54.5mm |
| Depth | 64mm |
| HS Code | 85365080 |
| Country of Manufacture | Estonia |
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