Voltage Rating & Application
Before installing SPD, verify the nameplate voltage has the same
voltage rating as the power distribution system. If unsure, call
Siemens TPS Tech Support at 1.888.333.3545 before proceeding.
The SPDs specifier or user should be familiar with the configuration
and arrangement of the power distribution system. The system
is defined by how the secondary windings of the transformer
supplying the service entrance main or load are configured. This
includes whether or not the transformer windings are referenced
to earth via a grounding conductor. The system configuration is
not based on how any specific load or equipment is connected to
a particular power distribution system. SPDs should be installed
per the distribution system, not per a load or motor’s wiring
connection.
For example, suppose a 480V three phase motor appears to be
connected as a 480V Delta. In actuality, the serving distribution
system might be a 480Y/277V grounded Wye, with or without a
neutral pulled to the motor or MCC. The system is still a 480Y/277V
Wye, even though the load is connected as a Delta. A grounded
Wye has a defined reference to ground (i.e., neutral is bonded to
ground). In contrast, some Delta systems are ungrounded, which
have no reference to ground.
Table 3: Model Number Decoder
Model
Voltage Code
Service Voltage
TPS3A09
A
240/120V 1Ø, 3W Plus
Ground,
TPS3B09
B
240/120V 3Ø, 4W Plus
Ground High Leg Delta
TPS3C09
C
208Y/120V 3Ø, 4W Plus
Ground
TPS3D09
D
240V 3Ø, 3W Plus Ground
TPS3E09
E
480Y/277V 3Ø, 4W Plus
Ground
TPS3F09
F
480V 3Ø, 3W Plus Ground
TPS3G09
G
600V 3Ø, 3W Plus Ground
TPS3K09
K
380Y/220V 3Ø, 4W Plus
Ground
TPS3L09
L
600Y/347V 3Ø, 4W Plus
Ground
TPS3S09
S
400Y/230V 3Ø, 4W Plus
Ground
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.
Parts List and Inspection
Items included in the package consist of the following:
•
1 TPS3 09 SPD including 3’ (1~m) conductors
•
1 User’s Manual (this document)
*See figure 4 for installation
If the Flush Mount Kit was ordered, additional parts are supplied
as follows:
•
1 Flush Mount Plate
•
4 Mounting Screws
TPS3 09 has demonstrated 200kA or 100kA Short Circuit Current
Ratings (SCCR) including leads. See UL Label markings on SPD or
see Data Sheet for specs.) Supplemental overcurrent protection
is not required to protect this SPD. However, NEC® and CEC
convention requires that connecting conductors have overcurrent
protection in Type 2 applications. Follow applicable codes.
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 replacing the
device. TPS3 09 is ultrasonically welded closed and contains no
user serviceable parts.
Table 2: Specifications
Specifications
Temperature Operating
-40
o
C (-40
o
F) to 60
o
C (+140
o
F)
Temperature Storage
-55
o
C (-67
o
F) to 65
o
C (+149
o
F)
Wire Size & Installation
Torque
10 AWG; 18 inch-pounds
Appropriate Circuit Breaker
based on conductor size
30A (SPD includes internal OCP)
NEMA 250 Enclosure Rating
Type 4X with appropriate
sealing & sealing condulets
3.00
(76.20)
0.19
(4.83)
8.28
(210.31)
3.67
(93.22)
2.21
(56.13)
7.41
(188.21)
Weight: 3lbs (1.4kg)
Figure 2: Dimensions & Weight
2
