NORD Drivesystems MI0700 - Manual (Page 48)

Frequency inverters – Migration Guide SK 700E to SK 5xxE
48 MI 0700 GB-0414
Pos : 54 /Migrati onsl eitf aden/ SK 700E - SK 500E/2. U ms etz ung/ 2. 8. 1 U nt erbau- Br ems widerst ände @ 3\ mod_1364289096231_388.doc x @ 62746 @ 35 @ 1
2.8.1 Footprint braking resistors
The tables below list and compare the footprint braking resistors SK BR1-xxx/xxx-F or SK BR4-
xxx/xxx allocated to the power ranges. The footprint braking resistors types/versions are different for
both series of frequency inverters. Depending on the available space and the respective switch
cabinet depth, both footprint braking resistor versions can be mounted either flat or vertically (book
size) next to the frequency inverter. For thermal protection of the footprint braking resistor of type
SK BR4-xxx/xxx, an optional temperature sensor (bimetal, 100 °C switching point, Part No.
275991200) can be fitted. Both footprint braking resistor versions are UL-approved and, because of
their protection class IP40, can also be installed outside the switch cabinet for improved heat
dissipation. For this purpose, the connection cables of the footprint braking resistors must be extended
accordingly.
1.5 kW to 7.5 kW
Footprint braking resistor
SK BR1-xxx/xxx-F
Part No.
Name
Information
Data
Footprint braking resistor
SK BR4-xxx/xxx
Part No.
SK BR1-200/300-F
Footprint braking resistor BR1 / BR4
• Power 1.5 kW and 2.2 kW
• 200 Ω / 220 Ω resistance
• 300 W / 200 W continuous power
• Connection via led out cables
0.3 m / 0.5 m cable length
SK BR4-220/200
278281030 275991220
SK BR1-100/400-F
Footprint braking resistor BR1 / BR4
• Power 3.0 kW and 4.0 kW
• 100 Ω / 100 Ω resistance
• 400 W / 400 W continuous power
• Connection via led out cables
0.3 m / 0.5 m cable length
SK BR4-100/400
278281040 275991240
SK BR1-60/600-F
Footprint braking resistor BR1 / BR4
• Power 5.5 kW and 7.5 kW
• 60 Ω / 60 Ω resistance
• 600 W / 600 W continuous power
• Connection via led out cables
0.3 m / 0.5 m cable length
SK BR4-60/600
278281060 275991260
Table 33: 1.5 kW – 7.5 kW footprint braking resistors
Information Technical information / data sheets
For more information, resistances, continuous power ratings and specifications such as dimensions of the
footprint braking resistors mentioned in this chapter, please refer to the pertaining Technical Information
TI014 xxxxxxxxx and the respective manuals (BU 0700 and BU 0500 or BU 0505).
The manuals and the TIs Technical Information / data sheets of the footprint braking resistors can be downloaded
on
www.nord.com or can be provided upon request.