Surge Protective Devices
INSTALLATION INSTRUCTIONS
The Liebert SH Series Hybrid Surge Protective Devices (SPDs) are high quality, high energy surge current diversion systems designed to protect sensitive equipment from damaging transient voltage surges. Proper installation is required for maximum system performance.
The installer should perform the following steps to assure a quality installation. The entire installation manual should be read before starting installation. These instructions do not replace national or local electrical codes. Check applicable electricalcodestoensurecompliance.InstallationoftheLiebert SPD system should only be performed by qualified personnel.
1.Insure that all power is removed before beginning installation. A qualified licensed electrician shall install all electrical connections.
2.The SPD is provided in NEMA 4 enclosures which are suitable for use in indoor or outdoor installations.
3.Determine where the SPD is to be mounted, allowing for minimum length of wire between itself and the input power terminals of the service panel. Punch or cut the proper hole size in the side of the SPD closest to the knockout to be utilized in the service panel. Drill mounting holes in wall at location picked for SPD next to service panel using mounting dimensions shown in the table below. Mount surge suppressor to wall using 3/8” mounting hardware.
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Summary Alarm Contacts (X2) | |||||
Pin 1 = Normally Open |
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Pin 2 | = Common |
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Pin 3 | = Normally Closed | ||||
1 | 2 | 3 | 1 | 2 | 3 |
TB1 |
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| TB2 |
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| E |
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| F (4X) |
Dimensional Information |
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Liebert SH Series |
| Phase L1/A |
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| Service Panel for | Phase L2/B |
| Loads to be Protected | Phase L3/C |
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| Disconnect/Main |
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| Breaker for |
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| Panel |
| Dedicated | Neutral Buss |
| Disconnect | Ground Buss |
| (Optional) | |
C | Recommended Wire |
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| Entrance |
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A
D
B
| Liebert SH Series | (Without Disconnect) | |||||
Model |
| Dimensions (Inches) |
| Weight | |||
# | A | B | C | D | E | F | (lbs) |
SH025 | 16 | 16 | 8 | 17.25 | 9.5 | 0.44 | 35 |
SH032 | 16 | 16 | 8 | 17.25 | 10 | 0.44 | 49 |
SH040 | 16 | 16 | 8 | 17.25 | 10 | 0.44 | 49 |
SH075 | 20 | 20 | 8 | 21.25 | 14 | 0.44 | 85 |
| Liebert SH Series | (With Disconnect) |
| ||||
Model |
| Dimensions (Inches) |
| Weight | |||
# | A | B | C | D | E | F | (lbs) |
SH025 | 20 | 16 | 8 | 21.25 | 10 | 0.44 | 45 |
SH032 | 20 | 16 | 8 | 21.25 | 10 | 0.44 | 58 |
SH040 | 20 | 16 | 8 | 21.25 | 10 | 0.44 | 58 |
SH075 | 20 | 24 | 8 | 21.25 | 18 | 0.44 | 95 |
Installation, Operation and Maintenance Manual | 6 | Liebert SPDs |
