Page 210 - B_ELSB_Cat_2022_01_MCBs

1/210 ELECTRICAL INSTALL ATION SOLUTIONS FOR BUILDINGS - TECHNICAL DETAILS 9AKK 107991 A8329
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MCBs technical details
S800 series DC applications

String protection with S800PV-SP
A large proportion of the costs for photovoltaic systems is tied up in the equipment for the
DC generation. The S800PV-SP protects these investments in the event of a fault.

Convincing: Suitable for up to 1500 V DC
Loadable: String protection up to 125 A
Reliable protection at high ambient temperatures
Tested: Rated ultimate short-circuit breaking capacity Icu of 5 kA in accordance with
IEC 60947-2 and Annex P
Fast: Reclosable for minimum standstill times
Safe: Disconnector properties, switching under load
Flexible: Extensive range of accessories for remote shutdown and fault signalling

System isolation with S800PV-SD
The use of a DC isolator can be implemented reliably and in the minimum of space. Either you
can choose the pole-independent S800PV-SD. The S800PV-SD is available as 2-,3- and 4-pole
version up to 1500 V DC.

Convincing: Suitable for up to 1500 V DC
Loadable: System isolation up to 125 A
No change in operating behaviour up to 60°C ambient temperature
Reliable switching of ohmic loads including moderate overloads
Compact: Minimum dimensions with maximum efficiency
Tested: Short-time withstand current Icw of 1.5 kA in accordance with IEC 60947-3
Safe: Disconnector properties, switching under load

Maximum device voltages
Article 2-pole 3-pole 4-pole
S800PV-SP
l 5 ... 125A 800 V DC 1200 V DC 1500 V DC
e
S800PV-SD
l 32, 63, 125 A 800 V DC 1200 V DC 1500 V DC
e

Exemplary circuit diagrams
ABB recommends to fulfill
national and/or international
standards as e. g. IEC 61439-1 Earthed network Non-earthed network
Low-voltage switchgear and
controlgear assemblies 800 VDC 1200 VDC 800 VDC 1500 VDC
1 3 1 3 5
1 3 1 3 5 7
2 4 2 4 6 2 4 2 4 6 8