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Installation Guide / User Manual
| TPS4-01 Surge Protection Device
General Information
This device features internal overcurrent and
overtemperature protection that will disconnect affected
surge suppression components at the end of their useful life,
but will maintain power to the load – now unprotected. If
this situation is undesirable for the application, follow
these instructions for servicing or replacing the device.
Service of this unit consists of replacing the entire module
and/ or display assembly.
There are no user-serviceable parts inside the replaceable
module. Do not attempt to disassemble the module as it may
have high voltage energy stored and can be hazardous if not
handled properly.
Precautionary Statement Regarding SPDs
on Ungrounded Systems
Caution
– Ungrounded systems are inherently unstable
and can produce excessively high line-to-ground voltages
during certain fault conditions. During these fault conditions,
any electrical equipment including an SPD, may be subjected
to voltages which exceed their designed ratings. This
information is being provided to the user so that an informed
decision can be made before installing any electrical
equipment on an ungrounded power system.
Overcurrent Protection
The TPS4 SPD unit draws very little current under normal
operation and will only conduct current for a very brief
duration upon encountering a transient surge. The TPS4
unit contains overcurrent and thermal protection to protect
against abnormal overvoltage conditions.
System Grounding
An equipment grounding conductor must be used on all
electrical circuits connected to the SPD.
For the best performance, use a single point ground
system where the service entrance grounding electrode
system is connected to and bonded to building steel,
metallic piping, driven rods, etc. (NEC® and IEEE Std
142-2007 are appropriate standards).
For sensitive electronics and computer systems, ground
impedance should be as low as possible. When metallic
raceway is used as an additional grounding conductor,
an insulated grounding conductor should be run inside
the raceway and sized per the NEC®. Adequate electrical
continuity must be maintained at all raceway connections.
Do not use isolating bushings to interrupt a metallic
raceway run.
A separate isolated ground for the SPD is NOT recommended
because it may isolate the SPD from the rest of the
electrical system, thus decreasing performance. Proper
equipment connections to grounding system and ground
grid continuity should be verified via inspections and tested
on a regular basis as part of a comprehensive electrical
maintenance program.
Environment
The TPS4 is designed to operate in an environment ranging
from: -35 ºC (-31 ºF) to +75 ºC (+167 ºF) and with relative
humidity of 0%-95% (non-condensing).
