Table of Contents
Advertisement
W Option Instruction:
The W option includes repositioned phase connection tabs
that allow for wire connections to a circuit breaker within
the panelboard. This differs from non-W models, which bolts
directly to bus bars.
The circuit breaker serves as a disconnector device and
overcurrent protection to the connecting conductors. The
TPS4 SPD includes internal overcurrent and overtemperature
protective equipment. The breaker does not provide
overcurrent protection to the SPD.
Recommended breaker size is 60A with a minimum 6 AWG
conductors regardless of breaker size selected (cable should
be sized to match breaker if larger breaker size is selected).
Other combinations are possible. SPD Terminal lugs will
accept 2-14 AWG. Breaker size should be at least 20A. All
applicable codes must be followed.
It is recommended that the circuit breaker be located
immediately adjacent to SPD to minimize lead lengths.
Move or adjust breaker positions as appropriate. Failure
to install short leads will degrade SPD performance.
2
Figure 3: TPS4 -W unit configuration
Table 4: Content for -W "Wired" SPD Installation
Item Description
1
TPS4 -W SPD with neutral lug
if needed
2
Phase Connection Lugs
(pre-installed) (torque value for
Wire binding screws)
3
Phase Lug Insulation Barrier
Step 1) Install appropriate circuit breaker in panelboard as
directed above.
Step 2) Mount the SPD using supplied hardware, per
previous instructions.
Step 3) Install phase insulation barrier into front panel of
TPS4. (Insulation is needed between bottom of TPS4 -W
phase tabs and tops of panel phase bus.) The "T" shaped
sections on insulator provided install into wide sections of
slots between phase tabs. Once in slot, press down into
narrower section of slot to lock in place.
Figure 4: TPS4 -W unit insulation barrier
Step 4) Connect the neutral connection by wire as
appropriate. Install conductors: Identify each panelboard
bus as Phase A, B and C. When the SPD is installed, the
SPD's Phase Tabs will have near proximity above energized
panelboard bus bars. The SPD's phase connections must
correspond to bus phases. Connect conductors from
the SPD's Phase Tabs to corresponding circuit breaker
connections.
For example, when energized: Typical Phase bus are
1
oriented from left to right > A-B-C
A) The SPD Phase Tab for Phase A must be located above the
B) The SPD Phase Tab for Phase B must be located above the
C) The SPD Phase Tab for Phase C must be located above the
3
Conductors must be routed as short and straight as possible.
Use gentle radius on any bends. Do not kink wires. Prevent
Qty.
Torque
wires from encroaching breaker locations.
1
Step 5) Torque all connections to the values specified on the
installation and maintenance instruction label affixed to the
2 or 3
120 in-lbs
rear of the dead front.
Step 6) Replace dead front supports (if they were removed
for ease of installation) and re-install front/trim.
1
Step 7) Energize breaker and confirm proper SPD operation.
Installation Guide / User Manual
panelboard bus for Phase A.
panelboard bus for Phase B.
panelboard bus for Phase C.
– Care must be taken when connecting to branch
breaker to insure that A-B-C phase connection
sequence is maintained.
| TPS4-01 Surge Protection Device
1
3
7
Advertisement
Table of Contents
