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Emerson Network Power.

The global leader in enabling 

Business-Critical Continuity

.

EmersonNetworkPower.com

AC Power 

Connectivity

DC Power

Embedded Computing

Embedded Power

Monitoring

Outside Plant

Power Switching & Controls

Racks & Integrated Cabinets

Services

Precision Cooling

Surge Protection

Liebert Corporation

1050 Dearborn Drive

P.O. Box 29186

Columbus, Ohio 43229

800 877 9222 Phone (U.S. & 

Canada Only)

614 888 0246 Phone (Outside U.S.)

614 841 6022 FAX

Via Leonardo Da Vinci 8

Zona Industriale Tognana 

35028 Piove Di Sacco (PD)

Italy

39 049 9719 111 Phone 

39 049 5841 257 FAX

Emerson Network Power Asia Pacific

7/F., Dah Sing Financial Centre

108 Gloucester Rd, Wanchai

Hong Kong

852 25722201 Phone 

852 28029250 FAX

liebert.com

24 x 7 Tech Support

800 222 5877 Phone

614 841 6755 (outside U.S.)

Emerson Network Power and the Emerson Network Power logo are trademarks and service marks of Emerson Electric Co.  ©2006 Emerson Electric Co.

While every precaution has been taken to ensure accuracy and 

completeness in this literature, Liebert Corporation assumes no

responsibility, and disclaims all liability for damages resulting

from use of this information or for any errors or omissions.

© 2006 Liebert Corporation. All rights reserved throughout 

the world. Specifications subject to change without notice.

All names referred to are trademarks or registered trademarks

of their respective owners.

® Liebert and the Liebert logo are registered trademarks 

of the Liebert Corporation.

SL-20600 (R03/08)        Printed in USA

Ensuring The High Availability Of
Mission-Critical Data And Applications.

Heat 

Uncrated Dimensions 

Uncrated

Shipping Dimensions

1

Shipping 

Amp

Output

(WxDxH)

Weight

(WxDxH)

Weight

1

Rating

(KW)

(inches)

(mm)

(lbs)

(kg)

(inches)

(mm)

(lbs)

(kg)

100

0.8

30x32x77

762x813x1956

780

354

48x44x82

1016x1194x2082

880

399

250

1.37

30x32x77

762x813x1956

780

354

48x44x82

1016x1194x2082

880

399

400

2.04

38x32x77

965x813x1956

1200

544

48x44x82

1016x1194x2082

1300

590

600

3.08

38x32x77

965x813x1956

1200 544

48x44x82

1016x1194x2082

1300

590

800

4.03

84x32x77

2134x813x1956

2500

1134

92x53x82

2337x1346x2082

2600

1179

1000

5.09

84x32x77

2134x813x1956

2500

1134

92x53x82

2337x1346x2082

2600

1179

Note: 

1

Shipping dimensions and weight include the pallet and packing material. Actual weights will vary depending on installed options.

Operating Specifications

Voltage: 208, 220, 240, 380, 400, 415, 480 or 600 VAC (field selectable), +/- 10%

Frequency: 50 or 60 Hz (field selectable), +/- 0.5 Hz

Overload Capability: 125% for 10 minutes,150% for 2 minutes

Operating Temperature: 0 to 40° C

Specifications

 

Summary of Contents for Liebert STS2

Page 1: ...AC Power For Business Critical Continuity Liebert STS2 Static Transfer Switch2 The Cornerstone of High Availability Power Systems ...

Page 2: ...low maintenance service or full replacement without disrupting the critical load Flexibility Internal CANBUS protocol high bandwidth communication between system components via twisted pair cables Options can be added as simple network nodes Dual lug installation bus with pem nuts for single hand installation and hot torque service Low Total Cost Of Ownership Conservative design margins and excell...

Page 3: ...t without shutting down the connected load For units up to 600 amps the entire power and control module can be removed as an assembly A separate compartment for option modules provides safe and convenient field access Source 1 Source 2 System Output CB1 CB3 CB4 CB2 CB5 K1 K2 K2 K3 K1 K3 True Internal Redundancy The Liebert STS2 has triple redundant logic Each DSP controller is capable of working i...

Page 4: ...switching is lower cost These savings are the result of only one power distribution unit a lower current due to 480V vs 208V and lower installation and wiring cost thanks to use of smaller three wire cable The one drawback of this configuration is the creation of transformer inrush saturation current each time switching occurs The downstream transformer can cause large peak saturation current duri...

Page 5: ...r critical loads Liebert s optimized STS2 eliminates the risk of transformer saturation problems during automatic transfers while its algorithm control ensures minimum voltage disturbance during transfers while still balancing the flux Figure 2 Optimized STS transfer The patented Liebert static switch optimized transfer control algorithm eliminates the downstream transformer inrush saturation The ...

Page 6: ...utput Breaker An output plug in non automatic circuit breaker provides redundancy in the output power path The breaker is connected in parallel with the output plug in non automatic circuit breaker Input Junction Boxes and Cable Up to 600A The input junction box option is available to simplify input connections to the STS2 Two input junction boxes and the associated flexible 10 foot long input cab...

Page 7: ...hat equipment s operating status at any given time For customers who need to have these vital protection systems continuously monitored but don t want to do it themselves Emerson Network Power Service offers Remote Monitoring Service This seamless rapid response system is designed to maximize the capabilities of your Liebert equipment by maximizing the effectiveness of its monitoring capabilities ...

Page 8: ...omissions 2006 Liebert Corporation All rights reserved throughout the world Specifications subject to change without notice All names referred to are trademarks or registered trademarks of their respective owners Liebert and the Liebert logo are registered trademarks of the Liebert Corporation SL 20600 R03 08 Printed in USA Ensuring The High Availability Of Mission Critical Data And Applications H...

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