We use cookies to make your experience better. To comply with the new e-Privacy directive, we need to ask for your consent to set the cookies. Learn more.
1SCA134579R1001 ABB OTDC25UST4 4 Pole 1000VDC 40A Switch Disconnector
MPN: 1SCA134579R1001
Alt. SKU: OTDC25UST4
Why Choose the OTDC25UST4 [1SCA134579R1001]
The OTDC25UST4 PV Disconnect Switch is designed for secure isolation in photovoltaic systems. It features a US single-wire break mechanism and supports double circuit operation with a current rating of 25 A at 600 VDC (UL), 25 A at 660 VDC (IEC), and 16 A at 1000 VDC (IEC). Supplied with a terminal bolt kit for straightforward installation, the handle and shaft must be ordered separately. This door-mount switch ensures reliable disconnection in compliance with relevant standards for solar applications.
Technical Specification
- Function: PV Disconnect Switch with US single-wire break.
- Voltage Ratings: 600 VDC (UL), 660 VDC (IEC), 1000 VDC (IEC).
- Current Ratings: 25 A (UL 600 VDC & IEC 660 VDC), 16 A (IEC 1000 VDC).
- Contact Configuration: Double circuit, 4 poles.
- Insulation Voltage (Ui): 1000 V.
- Impulse Withstand Voltage (Uimp): 8 kV.
- Degree of Protection: Front IP20.
- Terminal Type and Size: Screw terminals, 2.5 to 16 mm² (12 to 6 AWG).
- Mounting: Door mounting, mechanism on top.
- Mechanical Data: Shaft diameter 6 mm, tightening torque 1.2–1.4 N·m.
Trusted By Customers Worldwide
"Specified by UK panel builders for dependable control." Controls Engineer, UK
Frequently Asked Questions
What is the function of the OTDC25UST4?
The OTDC25UST4 is a PV Disconnect Switch designed for use with a US single-wire break configuration.
What are the voltage and current ratings for this switch?
The switch has voltage ratings of 600 VDC (UL), 660 VDC (IEC), and 1000 VDC (IEC) with current ratings of 25 A (UL & IEC 660 VDC) and 16 A (IEC 1000 VDC).
What type of terminals does the OTDC25UST4 use?
The switch features screw terminals that accommodate cable sizes from 2.5 to 16 mm² (12 to 6 AWG).
How is the OTDC25UST4 mounted?
This switch is designed for door mounting, with the mechanism positioned on the top.
What is the degree of protection for this product?
The OTDC25UST4 has a degree of protection rated at IP20 for the front.
Are there any specific standards or approvals for this switch?
See the manufacturer's data sheet for standards and approvals.
| Alternative Product SKU | OTDC25UST4 |
|---|---|
| Manufacturer Part Number | 1SCA134579R1001 |
| Manufacturer | ABB |
| Barcode | 6417019633619 |
| Number of Poles | 4 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 | 87mm |
| HS Code | 85365080 |
| Country of Manufacture | Estonia |
Write Your Own Review
