Catalogue CENTERLINE® Motor Control Centers
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Contactor and Starter Units
Bulletin 2173
Closed Transition Reduced Voltage Autotransformer Type Starter Unit with Circuit Breaker (RVAT)
See page 32 for product description.
Autotransformers (<200 Hp) allow a starting time of 10, 15, or 25 seconds (at 80%, 65%. or 50% TAPS, respectively) out of each four minutes for one hour, followed by a rest period of two hours. Autotransformers > 200 Hp allow a starting time of 20, 30, or 50 seconds (at 80%, 65%, or 50% TAPS, respectively). This is followed by an off time of 30 seconds for a maximum of three starts, followed by a rest period of one hour. If starting times are excessive, contact your local Rockwell Automation Sales Office. Duty cycle may be changed or components may have to be changed or added. See NEC Article 430. Both interposing relay and incomplete starting sequence protection are provided as standard. Standard factory settings are underlined.
NEMA
Line Voltages
Space
Catalog Number [1] Wiring Type B—Class I
Delivery
Size
240V Hp
480V/600V
Hp a
Factor
NEMA Type 1 and Type 1 w/ gasket
NEMA Type 12
Program
2
10-15
15-25
3.5
2173B-CA_-_
2173B-CD_-_
3
20-30
30-50
4.5
2173B-DA_-_
2173B-DD_-_
4 [3]
40-50
60-100
6.0
2173B-EA_-_
2173B-ED_-_
PE-II
5 [3]
60-100
125-200
6.0, 25" W
2173B-FA_-_
2173B-FD_-_
6 [3],[4],[5]
125-200
250-400
6.0, 35" W 20" D [6]
2173B-GA_-_
2173B-GD_-_
[1] The catalog numbers listed are not complete:
• Select the control voltage type from table on page 205 (e.g., 2173B-EABD).
• Select the horsepower from table on page 206 (e.g., 2173B-EABD-48).
• Select the circuit breaker type from table on page 211 (e.g., 2173B-EABD-48CA).
• For circuit breaker size based on load horsepower, refer to publications 2100-TD001x-EN-P and 2100-TD002r-EN-P.
The catalog numbers listed include an external reset button for the overload relay. To order catalog numbers without the external reset button, replace the letter
"A" for the letter "K" (e.g., 2173B-BK_-_) or replace the letter "D" with the letter "J" (e.g., 2173B-BJ_-_).
[2] Delivery program is PE-II in United States and SC-II in Canada for 600V and SC-II in United States and PE-II in Canada for 480V. [3] Available with Type B wiring only.
[4] Vertical section contains horizontal power bus that is mounted 5" deeper than standard. A special bus splice kit is provided when a NEMA size 6 starter is
selected adjacent to a standard 20" deep vertical section. Not available in NEMA Type 3R, Type 4, or back-to-back construction. [5] For 200 Hp at 240V or 400 Hp at 480V, suffix letter identifying circuit breaker must be CT or CM only. [6] Frame mounted 20" deep section without vertical wireway. Horizontal bus is 5" deeper than standard.
For Options, Modifications, and Accessories, see pages 101-117 53
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