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1SCA136706R1001 ABB OTDC32UST4 4 Pole 1000VDC 50A Switch Disconnector
MPN: 1SCA136706R1001
Alt. SKU: OTDC32UST4
Why Choose the OTDC32UST4 [1SCA136706R1001]
The OTDC32UST4 PV Disconnect Switch is designed for reliable isolation in photovoltaic systems. It supports double circuit operation with a current rating of 32 A at 600 VDC (UL), 32 A at 660 VDC (IEC), and 20 A at 1000 VDC (IEC). The switch features a US-style single-wire break mechanism and is suitable for door mounting. A terminal bolt kit is included for secure connections; however, the handle and shaft must be ordered separately to complete installation. This switch ensures compliance with relevant UL and IEC standards, providing dependable performance in solar power applications.
Technical Specification
- Function: PV disconnect switch with US single-wire break.
- Voltage Rating: 1000 V DC (IEC), 600 V DC (UL 508i).
- Current Rating: 32 A at 660 V DC (IEC), 32 A at 600 V DC (UL 508i).
- Contact Configuration: Double circuit, 4 poles.
- Insulation Voltage: Rated insulation voltage 1000 V.
- Impulse Withstand Voltage: 8 kV.
- Degree of Protection: Front IP20.
- Terminal Type: Screw terminals suitable for 2.5–16 mm² (12–6 AWG) cables.
- Mounting Type: Door mounting with mechanism on top of the switch.
- Protection Standard: UL508i RK5 fuselink max. 70 A, IEC60947 gPV fuselink max. 80 A.
Trusted By Customers Worldwide
"Specified by UK panel builders for dependable control." Controls Engineer, UK
Frequently Asked Questions
What is the function of the OTDC32UST4?
The OTDC32UST4 is a PV disconnect switch designed for use with a US single-wire break system.
What are the voltage and current ratings for this switch?
The switch has a voltage rating of 1000 V DC (IEC) and 600 V DC (UL 508i), with a current rating of 32 A for both standards.
What type of mounting does the OTDC32UST4 support?
This switch supports door mounting with the mechanism located on top of the switch.
What is the cable capacity for the terminal connections?
The screw terminals are suitable for cables ranging from 2.5 to 16 mm² (12 to 6 AWG).
What is the degree of protection for this product?
The degree of protection is IP20 for the front of the switch.
Are there any specific standards or approvals for this switch?
See the manufacturer's data sheet for standards and approvals.
| Alternative Product SKU | OTDC32UST4 |
|---|---|
| Manufacturer Part Number | 1SCA136706R1001 |
| Manufacturer | ABB |
| Barcode | 6417019652184 |
| 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 | 50A |
| Voltage | 1000VDC |
| Degree of protection (IP) | IP20 |
| Degree of protection (NEMA) | 1 |
| Type of electric connection | Screw connection |
| Packed Quantity | 1 |
| Height | 74mm |
| Width | 54.5mm |
| Depth | 87mm |
| HS Code | 85365080 |
| Country of Manufacture | Estonia |
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