ABB V-Contact VSC Series - Compliance with Standards; Protection against Short-Circuit

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1.7. Compliance with Standards
V-Contact contactors comply with the Standards of the major
industrialised countries and in particular with the following
Standards:
–IEC62271-106(2011);
–IEC62271-1(2007);
– GB/T 14808-2001;
– DL/T 593-2006;
– IEC 60278 replaced by IEC 62271-200;
–IEC60694(2002)replacedbyIEC62271-1;
–IEC60056(4.104)replacedbyIEC62271-100;
– IEC 60470 replaced by IEC 62271-106.
Characteristics of the contacts of the “Coil Continuity Control” and “Capacity Survey” devices
Technology
Relay with air-insulated contacts
Breaking characteristics:
Maximum breaking power 1200VA(onresistiveload)
Maximum breaking voltage 277VAC,30VDC
Maximum breaking current 3 A
Rated current 5 A @ 4 s
Contact characteristics:
Maximum resistance with contact open 150mohm(measureofvoltagedrop6VDC1)
Maximum capacity 1.5 pF
Trip times:
During closing 5.0 ms
During release 2.0 ms
Insulation:
Between contacts and coil 3000Vrms(50Hz/1min.)
Between open contacts 750Vrms(50Hz/1min.)
Resistance with contacts open
Min. 103 Mohm at 500 V DC
1.8. Protection against short-circuit
The value of the installation short-circuit current could exceed
the breaking capacity of the contactor. The contactor must
therefore have adequate protection against short-circuit.
Fuse replacement must only be carried out
by qualified personnel.
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