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1SCA134370R1001 ABB OTDC16U4 4 Pole 1000VDC 32A Switch Disconnector
ABB OTDC16U4 4-pole DC switch disconnector rated at 16 A for 660 V DC and 10 A for 1000 V DC, designed for photovoltaic, battery storage and industrial DC isolation applications.
Why Choose the ABB OTDC16U4 DC Switch Disconnector?
The ABB OTDC16U4 (1SCA134370R1001) is a compact and dependable DC switch disconnector designed to provide safe isolation for photovoltaic (PV), battery storage and industrial direct current applications. As part of the trusted ABB OTDC switch disconnector series, it delivers reliable switching performance while helping ensure safe maintenance and operation of DC electrical systems.
Designed for demanding renewable energy and industrial environments, the OTDC16U4 combines robust construction with a compact footprint, making it ideal for panel builders, OEMs and electrical contractors. Its four-pole, dual-circuit configuration offers flexible installation in DC combiner boxes, battery storage systems and industrial control panels.
With a 16 A operational rating at 660 V DC and 10 A at 1000 V DC, the ABB OTDC16U4 is suitable for dual-circuit DC isolation in photovoltaic arrays, energy storage systems and industrial DC power distribution. The switch is supplied with a terminal bolt kit, while the operating handle and shaft are ordered separately to suit the installation.
Key Advantages
- Compact DC switch disconnector for reliable circuit isolation.
- Designed for photovoltaic and battery energy storage applications.
- 4-pole dual-circuit switching configuration.
- Suitable for base or DIN rail mounting.
- Touch-safe IP20 protected terminals for improved safety.
- Reliable ABB switching technology for demanding industrial environments.
Key Features
- ABB OTDC switch disconnector series.
- Model: OTDC16U4.
- Manufacturer part number: 1SCA134370R1001.
- 16 A at 660 V DC operational current.
- 10 A at 1000 V DC operational current.
- 4-pole (dual-circuit) configuration.
- Base or DIN rail mounting.
- Rated insulation voltage of 1000 V.
- Rated impulse withstand voltage of 8 kV.
- Terminal bolt kit included.
Reliable DC Isolation for Renewable Energy Systems
DC switch disconnectors provide a safe means of isolating direct current circuits during maintenance, inspection and servicing. The ABB OTDC range has been developed specifically for photovoltaic systems, battery energy storage systems and industrial DC installations where dependable isolation and long service life are essential.
The OTDC16U4 combines ABB's proven engineering with a durable compact design, providing reliable switching performance and straightforward installation in modern renewable energy and industrial applications.
Typical Applications
- Solar photovoltaic installations.
- Battery energy storage systems (BESS).
- DC combiner boxes.
- Industrial DC distribution systems.
- OEM electrical control panels.
- Renewable energy infrastructure.
Technical Specifications
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| Voltage | 1000 V | |
|---|---|---|
| Mounting Type | DIN rail | |
| Product Series | ABB OTDC | |
| Device Type | Switch Disconnector | |
| Supply Type | DC | |
| Current | 32 A | |
| Phase | Three Phase | |
| IP Rating | IP20 | |
| Poles | 4-pole | |
| Manufacturer | ABB | |
| Series | OTDC Switch Disconnectors | |
| Model | OTDC16U4 | |
| MPN | 1SCA134370R1001 | |
| Product type | DC switch disconnector | |
| Rated operational current | 10 A at 1000 V DC | |
| UL rating | 16 A at 600 V DC | |
| Rated insulation voltage (Ui) | 1000 V | |
| Rated impulse withstand voltage (Uimp) | 8 kV | |
| Number of poles | 4 | |
| Number of circuits | 2 | |
| Mounting type | Base or DIN rail mounting | |
| Protection rating | IP20 | |
| Dimensions (H × W × D) | approx. 89 × 54.5 × 87 mm | |
| Weight | approx. 0.15 kg | |
| HS Code | 85365080 | |
| Country of Manufacture | Estonia |
Frequently Asked Questions
What is the ABB OTDC16U4 used for?
The OTDC16U4 is a DC switch disconnector used to safely isolate direct current circuits in photovoltaic, battery storage and industrial DC applications.
What is the current rating of the OTDC16U4?
The switch is rated at 16 A at 660 V DC, 10 A at 1000 V DC and 16 A at 600 V DC under UL standards.
How many poles does this switch have?
The ABB OTDC16U4 features a 4-pole dual-circuit configuration for flexible DC switching applications.
Are the operating handle and shaft included?
No. The terminal bolt kit is supplied, while the operating handle and shaft are ordered separately to match the installation requirements.
Where is the OTDC16U4 typically installed?
It is commonly installed in photovoltaic systems, battery storage equipment, DC combiner boxes and industrial control panels requiring safe DC isolation.
Trusted by Renewable Energy Professionals Worldwide
ABB OTDC switch disconnectors are trusted by renewable energy engineers, panel builders and electrical contractors for delivering safe, reliable DC isolation across photovoltaic, battery storage and industrial power applications.
