“S” Type Automatic Transfer Switches100 - 400 Amps 600 VAC

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Siemens “S” Type automatic transfer switches are designed to operate withthe Generac R-100 control used on the 7-60 kW Siemens StandbyGenerators. The transfer switches are UL 1008 listed for standby operation.

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Features� The standard 100 - 400

amp transfer switch ishoused in a steel NEMA3R enclosure, with electrostatically appliedpowder paint. The heavyduty contactor is a ULrecognized device,designed for years ofservice. The connectionbetween the “S” Typeautomatic transferswitch and the generator control is 7- # 14 wires.The service entrancerated transfer switcheshave a UL listed mainlinecircuit breaker ahead ofthe transfer switch forfull downstream protection.

� The 100 amp transferswitch has an integratedload center for pickingup the emergency circuits. It is especiallyuseful where the mainservice is large and onlya portion of the buildingload will be served bythe generator. Internalpoint to point wiring forthe generator connection and the 12circuits from the maindistribution point areincluded.

100 Amp Transfer Switch

100 - 400 Amp “S” Type NEMA 3R

Siemens Energy & Automation, Inc.3333 Old Milton ParkwayAlpharetta, GA 30005

1-800-964-4114info.sea@siemens.com

www.sea.siemens.com/generators

�2006 Siemens Energy & Automation, Inc. All Rights Reserved.Siemens is a registered trademark of Siemens AG. Product names mentioned may be trademarks or registeredtrademarks of their respective companies. Specifications are subject to change without notice.RPFL-STYPE-0506 New 5M0506PP Printed in USA

Functions ST/SR 100-400 AmpAll Timing and sensing functions originate in the R-100 controllerUtility voltage drop-out .........................................................................................................................................................................<60%Timer to generator start ...............................................................................................................................................................15 secondsEngine warm up delay ..................................................................................................................................................................10 secondsStandby voltage sensor .................................................................................. ........................................................................................90%Utility voltage pickup ............................................................................................................................................................................>80%Re-transfer time delay ..................................................................................................................................................................15 secondsEngine cool-down timer ...............................................................................................................................................................60 secondsExerciser ................................................................................................................................................................. 15 minutes every 7 days

The transfer switch can be operated manually without power applied.

SpecificationsAmps 100 100 100 200 200 400 400 Voltage 120/240, 1ø 120/240, 1ø 120/240, 1ø 120/240, 1ø 120/240, 1ø 120/240, 1ø 277/480, 3ø

120/208, 3ø 120/208, 3ø 120/208, 3ø 120/208, 3ø 277/480, 3ø 277/480, 3ø

Load Transition Type Open Transition Open Transition Open Transition Open Transition Open Transition Open Transition Open Transition(Automatic) W/12 Cir. Ld. Ctr. Ser. Ent. Rated Ser. Ent. Rated Enclosure Type NEMA 1 NEMA 3R NEMA 3R NEMA 3R NEMA 3R NEMA 3R NEMA 3RExpress Install Kit Yes No No No No No No Included

Withstand Rating (Amps) 10,000 10,000 10,000 10,000 10,000 18,000 18,000 Lug Range 2/0 - #14 400 MCM - #4 600 MCM - #4 or 2-250 MCM External Dimensions(H” x W” x D”)120/240,1ø / 120/208, 3ø 27 x 13 x 7 24 x 20 x 7 24 x 13 x 7 20 x 15 x 7 24 x 13 x 7 36 x 24 x 10 48 x 30 x 12 277/480, 3ø 36 x 24 x 10 Unit Weight (lbs.) 30 26 42 48 50 95 105

Typical Connection

Generator

N1

N2

Neutral

23

194

ST or SR

N1

N2

Neutral

23

194