SIRIUS 3RA21/22 load feeders
6.2 Product description
SIRIUS Innovations
566 System Manual, 01/2011, A8E56203870002-03
6.2.2.1 Pre-assembled complete devices
Pre-assembled complete devices
3RA2 fuseless load feeders are pre-assembled complete devices; they are delivered ready-
wired and with all mechanical connections established. The devices are available in
sizes S00 and S0 for direct-on-line starting or reversing operation. The fuseless load feeders
can be ordered with or without pre-assembled busbar adapters for mounting on a DIN rail or
busbar.
Connection systems
3RA2 fuseless load feeders are available with the following connection system options.
Table 6- 4 Connection systems available for 3RA2 fuseless load feeders
Connection system 3RA2 pre-assembled complete devices
Screw connection ✓
1)
Spring-loaded connection ✓
Ring cable lug connection ---
1)
The link module for the S00 load feeder can also be used to mount an S00 contactor on an
S0 motor starter protector.
Rated powers
3RA2 pre-assembled feeders are dimensioned for the following powers:
● Direct-on-line starters up to 15 kW (32 A)
● Reversing starters up to 15 kW (32 A)
Control supply voltages of 3RA2 load feeders
3RA2 pre-assembled feeders are suitable for the following rated control supply voltages:
● 230 V AC / 50/60 Hz
● 24 V DC
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