6
INTRODUCTION
This document explains how to install the Sollatek
DSP-M Series of AC Panel Surge Protection
Devices.
INSTALLATION INSTRUCTIONS
Warning: Terminals marked L1, L2, L3, N, GRD (where
relevant) must be connected respectively to phase(s) neutral and ground. Failure to
comply many result in danger or damage. See corresponding diagrams for proper
connections.
INSTALLATION DESCRIPTION
Sollatek DSP-M units are connected in parallel (or in “shunt”) across the supply to be
protected. The connecting cable does not carry the supply current, only the current
associated with suppressing the transient overvoltage.
MOUNTING
The units should be mounted as close as possible to the panel to be protected. See
opposite on Connecting Lead lengths. Conduit, preferably metallic, is to be installed
from the suppressor to the panel. Drill holes in the Sollatek DSP-M enclosure only in
the designated areas as shown in recommended cable dressing illustrations (below).
Mount the unit in the appropriate location using the mounting holes provided on the
enclosure.
INCORRECT INSTALLATION WILL IMPAIR THE EFFECTIVENESS OF THE AC PANEL
PROTECTORS.
Particularly important is the length of the connecting leads (see section opposite).
STATUS INDICATORS
The Sollatek DSP-M units have comprehensive, continuous visual status monitoring
present on each module.
Status
Full
Reduced
No
No Power To
Indicated
Protection
(Standby)
Protection
Protector
Indication
Both Windows One Window Both Windows Both Windows
Windows
Show Green
Shows Black Show Black
Show Green
LED
Green
Green
Green
Green
Indicator
LED Lit
LED Lit
LED Out
LED Out
Note: 240V 3 Phase Delta Systems and 480V 3 Phase Delta Systems do not have LED
indication.
REMOTE INDICATORS
A remote indication of the reduced protection state is available as a normallyopen or
normally closed dry contact.
WARNING: HIGH NEUTRAL TO GROUND VOLTAGE
On certain models, a RED warning light is provided. Should this light glow RED at any
time, consult a qualifi ed electrical contractor to check the integrity of the building
wiring. This RED light does not indicate suppressor failure, however a RED glowing
light is indicative of potentially hazardous site wiring.
CONNECTING LEADS
Connect the suppressor as shown in the installation diagram. Refer to diagrams
below for recommended cable dressing. Connect the terminals within the suppressor
to the load side of 60A breakers or fuses withing the panel. See specifi c connection
diagrams for more details and markings on unit if provided.
RECOMMENDED WIRE GAUGE
Minimum of 8 AWG
Maximum of 4 AWG (for ease of dressing)
LENGTH OF CONNECTING LEADS
The longer the connecting leads between the DSP-M and power panel the higher the
residual transient voltage.
RECOMMENDED MAXIMUM:
19” (500mm)
IDEALLY:
10” (250mm)
Each 10” (250mm) increase in cable length, increases clamping voltage by 25V per
1,000A surge current discharged.
• BIND THE PHASE NEUTRAL AND GROUND CONDUCTORS TIGHTLY OVER THE
ENTIRE RUN FROM THE SUPPRESSOR TO THE SERVICE PANEL.
• ALWAYS USE THE SHORTEST LENGTH OF CONNECTING CABLE POSSIBLE.
SOLLATEK DSP-M SERIES
AC Panel Transient Voltage Surge Suppressors
indicator
windows
power/
protection
LED
indicator
windows
RECOMMENDED CABLE DRESSING