Leviton 52000 Serie Instrucciones De Instalación página 4

2. Identify the electrical system in use (Delta or WYE system voltage): Matching TVSS module
and line voltages is critical! Identify the system in use by measuring L-N and L-L voltages.
CAUTION:
VOLTAGE MEASUREMENTS CAN BE DANGEROUS TO LIFE AND/OR
PROPERTY! CONFIRM THAT THE MAXIMUM MEASURED VOLTAGES DO NOT EXCEED
THE AC RMS VOLTAGE RATING SPECIFIED ON THE 52000 REPLACEABLE MODULES, OR
DAMAGE MAY OCCUR TO THE MODULES. SEE FIGS. 1-6.
3. Cutting Access Holes: Cut holes for conduit in panel using approved metal cutting tools. Prevent
any metallic filings from remaining inside the panel. If any metallic filings enter panel, care must be
exercised to remove them using a vacuum device or other tools, as required.
Mount securely: Refer to the "Panel Mounting" Instruction Sheet (enclosed).
Conduit Installation: Conduit should be installed with lock nut and bushing. Lock nut should be
adjusted so that bushing secures properly, and conduit and bushing extend as little as possible into
enclosure.
4. Connections: With the line POWER OFF, remove Terminal Block Cover and connect leads
using the largest stranded wire size possible (#10 to #3 AWG, stranded) as illustrated in the wiring
diagrams. Screw terminal torque requirements: #10 AWG (35 in.-lbs.), #8 AWG (40 in.-lbs.),
#3-#6 AWG (45 in.-lbs.).
Connecting wire lengths from the circuit breaker panel to the 52000's terminal block should be
minimal (less than 18" if possible). Power leads may be connected to L1, L2, and L3 without regard
to phase A, B, or C, except for the Three Phase High Leg Delta connection. In this connection,
either of the two power leads may be connected to L2 and L3 without regard to phase, but the
High Leg power lead must be connected to L1 (Fig. 6). Figs. 7 and 8 illustrate two methods for
connection lead attachment.
In Method 1, Fig. 7, the TVSS Panel provides a feed through connection between the circuit
breaker panel and a load.
NOTE: Maximum wire size is #3 AWG stranded.
This feed through hookup provides the best connection with regard to surge protection for the
dedicated load. This type of connection is desirable when the branch feeds sensitive loads that
need to be protected, such as a computer room or an area of electronic instrumentation.
Page 2
L1 V(L-N)
N
G
Fig. 1 – Single Phase with Grounded Neutral
G N L1
TVSS
Module 1
Common
Mode Module