4
vacon • 44
Active Front End (AFE)
Local contacts: http://drives.danfoss.com/danfoss-drives/local-contacts/
4.12
Active Front End unit – Circuit breaker selection
The Active Front End can also be protected by a circuit-breaker. The recommended types of circuit-
breakers are shown in Table 24. If a circuit-breaker from another manufacturer is used, it must be
equivalent to the circuit-breakers shown. Further information on the circuit-breakers shown is
available from the manufacturer. Circuit-breakers do not provide same level of protection as fuses,
therefore, fuses are always recommended to be used. A circuit-breaker can be used without a main
contactor. In this case, the Active Front End unit controls the circuit-breaker instead of the
contactor. The circuit-breakers shown are suitable for equipment rated at 380 V–500 V or 525 V–690
V.
Table 24. Circuit breaker for VACON
®
NXA
Type
T5H400FF3LS
FI9
T5H400FF3LS
MOE230V/T4-5
UVRC230V/T4-5
ES-6/T5
AUX-C3+1/T4-5
PB100/T4-5-3P
AUX-SA1-S51+1/T4-5
MCCB
Motor
Undervoltage rel. (cabled)
Spreaded ext. term. incl. PB100
Aux./alarm cont. (cabled)
Phase separators for upper/lower
terminals
S51 NC
1SDA054349R1
1SDA054897R1
1SDA054891R1
1SDA055038R1
1SDA054911R1
1SDA054970R1
1SDA064518R1
Type
T5H630FF3LS
FI10
T5H630FF3LS
MOE230V/T4-5
UVRC230V/T4-5
ES-6/T5
AUX-C3+1/T4-5
PB100/T4-5-3P
AUX-SA1-S51+1/T4-5
MCCB
Motor
Undervoltage rel. (cabled)
Spreaded ext. term. incl. PB100
Aux./alarm cont. (cabled)
Phase separators for upper/lower
terminals
S51 NC
1SDA054412R1
1SDA054897R1
1SDA054891R1
1SDA055038R1
1SDA054911R1
1SDA054970R1
1SDA064518R1
Type
T7S16FF3PR231LS
FI13
E1.2N 1600A Ekip Dip LI 3p F-F
M E1.2 220-250Vac/dc
YR 250Vac/dc E1.2
RTC 250V E1.2
YO E1.2 220-240Vac/dc
YC E1.2 220-240Vac/dc
YU E1.2 220-240Vac/dc
PB Separators H=200mm 4pz
E1.2 F 3P
Spring charging Motor
Reset coil
Ready to close auxiliary contact
Opening coil
Closing coil
Undervoltage coil
Phase separators
1SDA070881R1
1SDA073711R1
1SDA073746R1
1SDA073770R1
1SDA073674R1
1SDA073687R1
1SDA073700R1
1SDA073879R1
