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4.7
ELECTRICAL WIRING
WARNING !
UPS installation and connection must be performed by QUALIFIED SERVICE
PERSONNEL only.
It is the responsibility of the installation technician to ensure that all local and
national electric codes are adhered to.
Refer to the "Safety prescriptions - Installation" described on Section 1.
4.7.1 Utility input connection
NOTE !
Ensure that the AC and DC external isolators are OFF and locked out to prevent their
inadvertent operation.
Do not apply power to the equipment prior to the commissioning by a QUALIFIED
SERVICE ENGINEER.
Before any other input connection, connect and check the grounding wire.
The UPS has available input terminations for the Rectifier and Bypass.
The unit may be powered from a Common Input source or Dual Input sources if desired.
Fig. 4.7.1-1 Common Input Utility Rectifier & Bypass
In this case, the interconnection links BR1, BR2 and BR3 on the input terminals or bus
bars MUST REMAIN CONNECTED.
Fig. 4.7.1-2 Dual Input Utility Rectifier & Bypass
Always verify that the received UPS is as per the configuration ordered.
While installing UPS dual input utility, the interconnection links BR1, BR2 and BR3
MUST BE REMOVED. See Fig. 4.8.2-2.
Connect a single input Neutral to Bypass Utility (inside the UPS, common Neutral for
Bypass and Rectifier).
Modifications reserved
GE_UPS_ISG_TLE_SUL_40K_M15_1US_V010.docx
Critical Power
Common Input Utility Rectifier & Bypass
Dual Input Utility Configuration Rectifier & Bypass
The same power source is to be used for both
Bypass Supply and Rectifier Input (input F33).
Bear in mind that when the Utility fuses are
opened there is a supply failure to the Rectifier
as well as to the Automatic Bypass.
The Bypass and Rectifier use different power
sources (F31 and F32 inputs).
In this case, when the Rectifier-input fuses are
opened, the Automatic Bypass is supplied by
the other connection.
Installation Guide TLE Scalable Series 40 - 150 UL S1
Page 22/53
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