User's Manual

Combination Starters & Starters for Group Installation
SIRIUS 3RA2 Motor Starters
3RA21 direct-on-line starters
50/60 Hz 110/120 V AC
6/14
SIRIUS Innovations Supplement 2011
Illustrations are approximate
6
Rated control supply voltage 50/60 Hz 110/120 V AC
With spring-type connection
• These starters can be assembled in the field without tools by
simply snapping the components together. Follow the simple
component selection system to form a starter.
• Auxiliary switches
1)
on the motor starter protector and the con-
tactor can be easily fitted due to the modular system.
• Integrated auxiliary switches:
- Contactor size S00: 1 NO;
- Contactor size S0: 1 NO + 1 NC
Combination Starter, UL508 Type F
All size S00 and S0 devices can be applied as Combination
Starters with the addition of either of these line side connectors:
3RV29 28-1H, 3RV29 25-5EB or 3RV29 28-1K.
1)
For auxiliary switches see Accessories page 6/21.
2)
Selection depends on motor full load amps. HP ratings for reference only.
3)
Use only for mounting starter on 8US Fast Bus busbar systems.
4)
Mounting on standard mounting rails with adapter (3RA29 22-1AA00) is
possible for feeder-orientated assembly, in which case the contactor must
be screwed onto the adapter.
5)
For the AC version size S0 with spring loaded terminals, a 3RA29 11-
1CA00 spacer is required for height compensation of the contactor.
3RA21 10
3RA21 20 3RA21 10 3RA21 20
Direct-on-line
starting
Size UL Data FLA setting
range inverse-
time delayed
overload
release
Consisting of the following single devices Not available
pre-assembled
Weight
approx.
Single-phase
HP ratings
Three-phase
2)
HP ratings
SCCR
at
480 V
Motor
starter
protector
+ Contactor + Link module + Busbar
adapter
3)
Spring-type
terminals
115 V 230 V 200 V 230 V 460 V 575 V Order No.
kA A kg
Selection depends on motor full load amps
3RV20 3RT20 3RA 8US12
S00 -- -- -- -- -- -- 65 0.14…0.2 11-0BA20 15-2AK61 2911-2AA00 51-5DT11 0.641
-- -- -- -- -- -- 65 0.18…0.25 11-0CA20 0.641
-- -- -- -- -- -- 65 0.22…0.32 11-0DA20 0.641
-- -- -- -- -- -- 65 0.28…0.4 11-0EA20 0.641
-- -- -- -- -- -- 65 0.35…0.5 11-0FA20 0.641
-- -- -- -- -- -- 65 0.45…0.63 11-0GA20 0.641
-- -- -- -- -- -- 65 0.55…0.8 11-0HA20 0.641
-- -- -- -- -- 1/2 65 0.7… 1 11-0JA20 0.641
-- -- -- -- 1/2 1/2 65 0.9… 1.25 11-0KA20 0.641
-- 1/10 -- -- 3/4 3/4 65 1.1… 1.6 11-1AA20 0.641
-- 1/8 -- -- 3/4 1 65 1.4… 2 11-1BA20 0.641
-- 1/6 1/2 1/2 1 1 1/2 65 1.8… 2.5 11-1CA20 0.641
1/10 1/4 1/2 3/4 1 1/2 2 65 2.2… 3.2 11-1DA20 0.641
1/8 1/3 3/4 3/4 2 3 65 2.8… 4 11-1EA20 0.641
1/6 1/2 1 1 3 3 65 3.5… 5 11-1FA20 0.641
1/4 1/2 1 1 1/2 3 5 65 4.5… 6.3 11-1GA20 0.641
1/3 1 2 2 5 5 65 5.5… 8 11-1HA20 16-2AK61 0.641
1/2 1 1/2 2 3 5 7 1/2 65 7… 10 11-1JA20 0.641
1/2 2 3 3 7 1/2 10 65 9… 12 11-1KA20 17-1AK61 0.641
1 2 3 5 10 -- 65 11… 16 11-4AA20 18-2AK61 0.641
S0 1/6 1/2 1 1 3 3 65 3.5… 5 11-1FA20 24-2AK60 2921-2AA00
4)
+2911-1CA00
5)
51-5NT11 0.925
1/4 1/2 1 1 1/2 3 5 65 4.5… 6.3 11-1GA20 0.925
1/3 1 2 2 5 5 65 5.5… 8 11-1HA20 0.925
1/2 1 1/2 2 3 5 7 1/2 65 7… 10 11-1JA20 0.925
1/2 2 3 3 7 1/2 10 65 9… 12.5 11-1KA20 0.925
1 2 3 5 10 -- 65 11… 16 21-4AA20 26-2AK60 0.925
1 1/2 3 5 5 10 -- 65 14… 20 21-4BA20 0.925
1 1/2 3 5 7 1/2 15 -- 50 17… 22 21-4CA20 27-2AK60 0.925
2 3 5 7 1/2 15 -- 50 20… 25 21-4DA20 0.925
2 5 7 1/2 10 20 -- 50 27… 32 21-4EA20 0.925
Screw fixing with 1 push-in lug each per motor starter is possible
(see "Accessories for Direct-On-Line and Reversing Starters").
© Siemens AG 2011