8
106 solar pv
ABB Low Voltage Contractor 0312
Solar PV
AC
Side
- Switching & Protection
S200M MCBs
The S200 M protect installations against overload and short circuit, ensuring reliability and safety for operations.
They are selectively switchable, even under load, in the event of a fault or for maintenance purposes. The standstill
times are minimised thanks to the devices’ reclosing capability. These devices offer users confidence thanks to
their 100% factory testing. The devices, with their wide range of accessories, are suitable for international use.
The S200 M are known for their ease of maintenance – thanks to a special type of fastening for easy removal
of the device from its present installation. Supply is possible from above or below, also for busbars. Without
busbars, two terminal sections can be used. The tripping behaviour caters to customer requirements (B, C, D, K, Z
characteristics)
E200 Isolators
The isolator is used as a master switch on the AC side. It offers reliable and safe switching under load.
Ease of maintenance is guaranteed by the special fastening for easy removal of the device from its present
installation. The wide range of accessories facilitates use of all applications.
F200 PV-B RCCBs
Residual current devices ensure protection of people and installations against fault current to earth and fire risks.
An RCD B type is required on the AC side in case of lack of electrical separation between the AC and the DC side.
The devices save money and improve global efficiency by using PV connectors without an internal insulation
transformer. The devices, with their wide range of accessories are suitable for international use.
The RCCBs F202 PV B and F204 B are intended for installation of single and three phase PV converters. they
protect against fire risks and leakage currents.
CM-UFS Interface relay for connection to the power grid
Even small distributed generating systems need to be connected to the power grid with guarantees as to
completely safe operation, especially when the energy flow towards the network must be shut off for maintenance
or if a fault occurs in the network itself.
Rapid disconnection is essential if hazardous situations for the people who must work on the lines are to be
avoided. This sort of protection can be achieved with an automatic monitoring device able to immediately detect
faults in the network. The CM-UFS interface, which conforms to both the Italian ENEL Distribuzione Directive for
connections to the electricity main and to German DIN V VDE 0126-1-1, answers to the
need for safety for both the installations and the operators in the case of faults and malfunctions in the public
power grid during parallel operation.
The main features of the CM-UFS interface relay are:
- Undervoltage protection
- Overvoltage protection
- Minimum frequency protection
- Maximum frequency protection
- Installation on DIN channel, dimension 22 mm
- Configurable connection for the neutral conductor
- 3 LED to indicate the operating status
- Power supply from the circuit under control
- Measurement of the true RMS value
- Can also be used for monitoring single-phase systems
- 2 switch contacts (SPDT)
L1
N L2L3
15
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