12
vacon • 206 Brake chopper unit (NXB)
Local contacts: http://drives.danfoss.com/danfoss-drives/local-contacts/
12.6 VACON
®
brake resistors and brake chopper dimensioning
12.6.1 Braking energy and losses
Table 100. VACON
®
standard brake resistors and NXB energy, mains voltage 465–800 Vdc
Mains voltage 465-800 VDC
BCU type
BCU output BCU
Power loss at full
braking
Chassis
Resistor Brake energy
Resistor type & R[Ω]Light duty
5 sec (kJ)
High Duty
10 sec (kJ)
c/a/T
*)
[kW]
NXB 0031 5 BRR0031 / 63 82 220 0.7/0.2/0.9 CH3
NXB 0061 5 BRR0061 / 14 254 660 1.3/0.3/1.5 CH3
NXB 0087 5 BRR0061 / 14 254 660 1.5/0.3/1.8 CH4
NXB 0105 5 BRR0105 / 6.5 546 1420 1.8/0.3/2.1 CH4
NXB 0140 5 BRR0105 / 6.5 546 1420 2.3/0.3/2.6 CH4
NXB 0168 5 BRR0105 / 6.5 546 1420 2.5/0.3/2.8 CH5
NXB 0205 5 BRR0105 / 6.5 546 1420 3.0/0.4/3.4 CH5
NXB 0261 5 BRR0105 / 6.5 546 1420 4.0/0.4/4.4 CH5
NXB 0300 5 BRR0300 / 3.3 1094 2842 4.5/0.4/4.9 CH61
NXB 0385 5 BRR0300 / 3.3 1094 2842 5.5/0.5/6.0 CH61
NXB 0460 5 BRR0300 / 3.3 1094 2842 5.5/0.5/6.0 CH62
NXB 0520 5 BRR0520 / 1.4 2520 6600 6.5/0.5/7.0 CH62
NXB 0590 5 BRR0520 / 1.4 2520 6600 7.5/0.6/8.1 CH62
NXB 0650 5 BRR0520 / 1.4 2520 6600 8.5/0.6/9.1 CH62
NXB 0730 5 BRR0730 / 0.9 3950 10264 10.0/0.7/10.7 CH62
Table 101. VACON
®
standard brake resistors and NXB energy, mains voltage 640–1100 Vdc
Mains voltage 640-1100 VDC
BCU type
BCU output BCU
Chassis
Resistor Brake energy
Power loss at
full braking
Resistor type & R[Ω]
Light Duty
5 sec (kJ)
High Duty
10 sec (kJ)
c/a/T
*
[kW]
NXB 0170_6 BRR0208 / 7 968 2516 3.6/0.2/3.8 Ch61
NXB 0208_6 BRR0208 / 7 968 2516 4.3/0.3/4.6 Ch61
NXB 0261_6 BRR0208 / 7 968 2516 5.4/0.3/5.7 Ch61
NXB 0325_6 BRR0208 / 7 968 2516 6.5/0.3/6.8 Ch62
NXB 0385_6 BRR0208 / 7 968 2516 7.5/0.4/7.9 Ch62
NXB 0416_6 BRR0416 / 2.5 2710 7046 8.0/0.4/8.4 Ch62
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