The new OTDC Switch Disconnectors expand ABB’s offering for PV applications.
For years ABB has been involved in solar industry and research development projects around the world. ABB know how to help make the entire process of solar power generation in commercial, industrial and residential applications for efficient, cost effective and safe.
The ABB product portfolio includes the Enclosed OTDC switches from 16 to 32 Amps which meet the demanding requirements of photovoltaic applications. Enclosed OTDC switches expand ABB’s offering of reliable products for photovoltaic applications needed from the strings on the direct current side to the alternating current grid connection point.
Reliability at higher voltages
Enclosed OTDC switch disconnectors from 16 to 32 Amps have extensive DC voltage ratings with the same footprint area. The switches are specifically designed for DC use up to 1000V. They are available in 2, 3 and 4-pole versions.
- Safe and reliable PV systems at a wide voltage range.
Thermal excellence
Enclosed OTDC switches meet the standard’s thermal requirements even in exceptionally high operating ambient temperatures.
- Thanks to thermal characteristics enclosed OTDC switches are suitable for warm locations.
- Low power losses minimise the waste of energy
- Maximum energy efficiency of PV systems.
Simplicity in installation
The switch has tunnel terminals suitable for a wide range of stranded Cu wires 2.5…16mm². Connection bars and terminal numbering are factory-mounted.
- Fast and perfect installation every time.
- Terminals utilise a Torx 8 screw for added security and strength of connection.
Designed for safety
- Padlockable in the OFF-position
- If the contacts are welded together, the handle does not reach the OFF-position, maintaining the cover interlock and preventing padlocking.
- Cover interlock in the ON-position. The cover interlock can be defeated by skilled personnel.
- Provision for cover sealing
- Mounting screws isolated from enclosure interior.
- Enclosure with a high degree of protection (IP65)
ABB’s DC switch range now features two pole DC switch-disconnectors up to 500 A (IEC). With this new addition, ABB offers DC switches from 10 to 500 Amperes.
The new two pole switch-disconnectors OTDC expand ABB’s offering for PV applications.
OTDC switches have been specifically designed for PV applications and can operate at 1000VDC with only two poles. Dual air gap contacts provide quick and reliable isolation in a compact frame. The breaking power is optimized across the full ampacity range.
Thanks to
a symmetric pole design, OTDC switches are independent of polarity. This allows the user to choose the direction of the current flow and make the connections in either way.
The installation is fast and easy. The operating mechanism can be located between the poles or on the side of the switch. Four pole versions are available for use in double-circuit applications (4 poles, 2 X 1000 VDC). This version is particularly suitable for Australian market to comply with the standard. A special version up to 1500V DC is also available (3poles in series).
OTDC can adapt to a wide variety of installations. ABB’s OTDC switches are robust, authentic switch-disconnectors. The switches are not vulnerable to transient voltages and the operation is user-independent (quick make-quick break).
OTDC is the only DC disconnect switch in the market with visible contacts, giving a reliable position indication. Operation is safe and reliable. OTDC provides fast arc extinguishing within a small footprint, flexibility to use in diverse applications and safe operation.
Ask an ABB expert today about OTDC switches and our huge range of world-class, high quality, reliable products and services for the solar industry www.abbaustralia.com.au/lowvoltage
