SPDSG50-300 Spark Gap
Class I Lightning Arrester
(Single Phase, 1 Mode, 300vac, 50kA I imp,
(10/350us )
SPECIFICATION AND INSTALLATION
INSTRUCTIONS
FEATURES
•
•
•
1 mode protection (L-E or L-N)
Compact solution for primary direct strike
protection
2 wide Din 43880 form factor
Applications
•
High risk, point of entry systems
SPECIFICATIONS
Model
Technology
Encapsulated Spark Gap
Method of mounting
35mm Din rail
Input voltage (Un)
230vac nominal
Max Continuous Voltage (Mcov)
300vac
Test classification IEC
Class I
Maximum rated surge current –
(I imp) 10/350us
Max rated surge current –
(Imax) 8/20us
140kA
Residual voltage (Vpl)
<2.5KV
50kA
Leakage current
None
Response time
<100ns
External disconnector max
160A gL
Terminations
Insulation resistance
Enclosure material
Enclosure rating
Applicable standards.
Dimensions
Weight
Environment
Warranty
FUNCTIONAL DESCRIPTION
SPDSG50-300
35mm multi-strand
> 103 M Ohm
Thermo plastic. UL94-V0
IP20
IEC61643-1:2001
35mm (W) x 100mm (H) x
77mm (D)
The SPDSG50-300 is designed to protect single
phase power systems against damage from surges
and spikes caused by lightning and other electrical
sources. The unit is intended for high risk point-ofentry protection and is connected in parallel with the
power system via HRC fuses if no other adequate
over protection is present. Check that the model you
have purchased is rated correctly for your power
system.
.
WARRANTY
Eaton warrants this unit against faulty parts and
workmanship for a period of 5 years from the date of
purchase. If this product fails to operate correctly,
please contact your Eaton representative. This
warranty doesn’t cover neglect or intentional misuse.
As this product is intended for use in electrically
harsh environments no claim is made of suitability for
purpose.
200 grams
-40c to +80c
For installation details,
see over page.
5 years
Specification are subject to change without notice. Copyright 2010 Eaton Industries Pty Ltd
Technical Specification –SPDSG50-300
Tvss Doc# 51xxxx
Page 1 of 2
•
INSTALLATION
PROCEDURE:
1.
CHECK
•
Always work safely – disconnect power before
making connections.
•
All wiring must be carried out by suitably qualified
personnel according to the applicable standards.
•
Check for correct operating voltage and power
system. This model (SPDSG50-300) is designed
for power systems in the range of 220-255vac. If
your power system is a different voltage, this
model is not suitable. Please contact your
supplier.
•
Always use the correct size HRC fuses.
•
For services >160A, use 160A fuses maximum.
For services <160A, fuse at a level lower than
than the service size.
•
Always use Gg or Gl-rated fuses. Do not use
delay types or ‘semiconductor’ fuses.
2. INSTALL
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Locate a fuse position as close as possible to the
Main Switch.
•
Install fuse holders or fuse-switch if required.
•
Locate a suitable position for the SPD, ensuring
adequate space for cables. Do not install above
heat-generating objects or in any position that is
exposed to weather.
3. CONNECT
•
Connect wiring - refer to connection diagrams. If
using stranded cable, always use wire ferrules for
lowest resistance and to prevent damage to the
wire.
•
Keep termination length as short as possible. Do
not wire in extra loops or cable length.
4.
Earth connections from the unit to earth link MUST be
as short as possible.
Failure to consider the above points can result in
improper operation of the unit and possible damage to
the installation.
NOTES:
•
160A fuses are rated such for maximum surge
rating. On services below 160A, high-level surges
may cause disconnection of the supply.
•
Wiring from fuse to SPD is carrying surge currents
only, not load current. This means that smaller
cables may be used than is normal for the current
rating.
•
If using under-sized cables, some energy
authorities require double insulation (i.e. sleeving)
of the cables.
•
Unplug the alarm connector for termination.
•
Do not Megger test cabling with unit connected –
unit may be damaged.
EARTHING
For proper operation, all surge diverters rely upon a good
earth connection:
• The main earth wire (from earth link on switchboard to
ground rod or system) MUST be as short and direct as
possible. Extra cable must not be looped.
Specification are subject to change without notice. Copyright 2010 Eaton Industries Pty Ltd
Technical Specification –SPDSG50-300
Tvss Doc# 51xxxx
Page 2 of 2