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3/226 ABB MOTOR PROTECTION AND CONTROL
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GAF contactors
The compact efficient way to switch DC loads
03
DC
Up to 2050 A Proven technology Easy selection
1000 V DC-1 The GAF range of contactor is The GAF contactors feature ABBs
based on the tested and well proven AF technology and all of its features.
The GAF range of DC contactors AFcontactor range. The GAF share all With only four coils the entire voltage
extends from 250 A up to 2050 A for accessories with the AF range, reduc- range of 20 V DC and 24 V AC to 500 V
DC-1 and UL DC general use at 1000 V. ing the number of parts needed. AC / DC is covered. The built in surge
suppression takes away the need of
a separate surge suppressor. All to
enable easier selection of contactors.
PV plant applications for DC switching
Contactors are typically selected for applications that need
remote control and switching of the central inverter’s DC
side at least once per day. Application examples include:
disconnection of the inverter from PV strings; or changing
the string configuration to increase plant capacity.