OT25F8 ABB, OT25F8 Datasheet - Page 4

• Manufacturer Part Number: OT25F8
• Description: OT SW/DISCONN. SOLAR, 8P, 750VDC 25A
• Manufacturer: ABB

Specifications of OT25F8

• Current Rating: 25A
• No. Of Poles: 8
• Voltage Rating Vdc: 750V
• Insulation Voltage: 800V
• Rohs Compliant: Yes
• Svhc: No SVHC (20-Jun-2011)

The variety of photovoltaic systems in terms of power, inverter type
(with mains-frequency transformer, with high-frequency transformer or with no
transformer) and type of public grid connection (single-phase, three-phase,
low or medium voltage) requires careful selection of the components by designers
and installers.
The presence of high direct current voltage values, together
with the unique characteristics of photovoltaic systems
(i.e. the system can be powered down only by screening the
solar panels and the strings generate short-circuit currents
with values very close to the currents generated in standard
conditions), make the selection of protection, control and
isolation devices particularly critical. In line with the new
market requirements, ABB developed a complete and reliable
4
ABB experience about solar energy
Products for the photovoltaic industry from a company that has
always offered the best solutions in the field of electric power.
range of products specifically dedicated to photovoltaic
applications that meets every system engineering need,
from the string on direct current side to the alternate current
network connection point.
The ABB offering includes fuse disconnector, circuit breakers,
switch-disconnectors, surge protection devices (SPD), and
watertight consumer units and enclosures for outdoor use, all
specifically designed for these types of applications.