Superior Electric STABILINE PT2 Series User manual

* Subject to change without notice.
STABILINE®
Surge Protective Devices
PT2 Series – Type 2 SPD
Installation, Operation and
Maintenance Manual
Thank you for purchasing the PT2 Series STABILINE®Surge Protective Device . . .
another Superior product!
Expect exceptional performance. The unit is built to the highest standards for your
complete satisfaction.
To assure many years of uninterrupted service, please read this Installation,
Operation and Maintenance Manual to familiarize yourself with the operation and proper
installation of the PT2 Series unit.

PT2-40-120-1G-L1
PT2-40-220-1G-L1
PT2-40-120/240-2G-L1
PT2-40-120/208-3GY-L1
PT2-40-220/380-3GY-L1
PT2-40-277/480-3GY-L1
120 VAC L-N, Single Phase, 50/60 Hz, 2-Wire + Ground
220 VAC L-N, Single Phase, 50/60 Hz, 2-Wire + Ground
240 VAC L-L, 120 L-N, Single Phase, 50/60 Hz, 3-Wire + Ground (Split Phase)
208Y/120 VAC, Three Phase Wye, 50/60 Hz, 4-Wire + Ground
380Y/220 VAC, Three Phase Wye, 50/60 Hz, 4-Wire + Ground
480Y/277 VAC, Three Phase Wye, 50/60 Hz, 4-Wire + Ground
Model Number Power Configuration
The PT2 Series, Type 2 Surge Protective Device (SPD) is
designed for protection of downstream distribution equipment
and wiring as well as most sensitive electrical and electronic
loads from the effects of overvoltage transients that might
be produced from lightning, induction, load or power factor
capacitor switching.
All PT2 Series Surge Protective Devices are supplied with
lead lengths of 18 inches - # 14 AWG Stranded Wire. A Green
LED on the faceplate indicates the SPD functional status. All
models covered in this Installation, Operation and Maintenance
Manual are supplied with a Form C contact set for remote
monitoring; the unpowered contacts are accessed at the
terminal block mounted on the side of the SPD.
General
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34
2
3
4
Model PT2-40-120-1G-L1
Model PT2-40-120/240-2G-L1
Model PT2-40-220-1G-L1
Models PT2-40-120/208-3GY-L1,
PT2-40-220/380-3GY-L1 and
PT2-40-277/480-3GY-L1
L-L VAC
L-N VAC
1
3
1
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/
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•
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•
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Instructions for Installation
2

Illustration of SPD mounted
through a panel knockout
Illustration of SPD right
side mounting holes
e
n
r
e
3
)
o
h
SPD
PT2 Series units are designed to be
mounted through a 1/2” knockout in
the service entrance gear or other
electrical panel. It can also be
mounted using the two holes 2.3
inches center-to-center (58.42mm)
on the right side of the SPD; use
two #8 self-tapping screws that do
not extend more than 3/8 inch
(9.5mm) into the plastic body.
Mounting
●A qualified electrician must install the SPD and all
applicable codes, listings and ratings must be observed
and followed.
●The electrical system must be properly grounded to
comply with National Electrical Code requirements.
Proper grounding is essential for surge protection to be
effective.
●Failure to wire per installation instructions may cause
personal injury or equipment/device damage.
●The PT2 unit contains no user-serviceable parts.
WARNING ….
Important Safety Instructions
Installation and servicing
should only be done by
qualified personnel. Do
not assume the circuit is
de-energized!
WARNING!
3

Ilustration shown is typical of
Model PT2-40-120/240-2G-L1
• Connect the Green wire to the Ground bar.
• Connect the White wire to the system Neutral bar.
• Connect the Black wire(s) to each pole of the breaker.
SPD
Installation
Connecting the Surge Protective Device
Verify that the power configuration for the model chosen
agrees with the actual service to which the SPD is to be
connected. It is important to keep the connecting leads of
the SPD as short and as straight as possible. Depending
upon the service configuration, the SPD may be required to
be connected with overcurrent circuit protection. Refer to
Table 1 to determine if an upstream overcurrent protection
device is required.
The SPD must be installed on either the line or load side of
the main service disconnect. The SPD must be installed
in parallel to the electrical distribution system. Careful
consideration should be made in selecting the knockout
location because excess lead length and sharp bends in the
wire drastically decrease the effectiveness of the SPD. For
this reason choose a knockout location that minimizes lead
length and sharp bends. The SPD may also be mounted
within the equipment enclosure.
4

Connecting the Surge Protective Device cont.
1. Disconnect all power supplying the electrical panel.
2. Remove the panel screws and cover. Retain these parts for re-
installation.
3. Remove a knockout 0.5 inches. (13mm)
4. Remove lock washer from the SPD’s threaded nipple. Carefully
feed the wires through to avoid cutting wire insulation. Slide
lock washer over the wires to anchor the threaded nipple.
Rotate the SPD so that the function status LED indicators can
be easily viewed. Tighten the lock washer to secure the SPD.
5. Locate the neutral bar inside the electrical panel and connect
the white or blue wire to the neutral bar and tighten to torque
specified on inside of panel. Keep conductor length as short as
possible to avoid sharp bends in the wire.
6. Locate the ground bar inside the electrical panel. Connect
the green or green/yellow wire to the ground bar and tighten
the terminal to the torque specified on the panel. Keep
conductor length as short as possible and avoid sharp bends.
If neutral is bonded to ground, green wire may be terminated to
neutral.
7. Black or brown wires should be connected to either the breaker
or the bus of the panel, as long as the short circuit current rating
does not exceed 65 or 100 kAIC (see Table 1 for specific model
ratings.) If you would like to be able to turn the unit off, then you
may consider connecting it to a breaker (# of positions
determined by the # of black or brown wires provided with the
unit.) Tighten terminals to torque specified on inside of panel.
Keep lead lengths as short as possible to avoid sharp bends.
8. Re-install panel cover.
nkAICUpstream
Model Rating OvercurrentProtection
PT2Ͳ40Ͳ120Ͳ1GͲL1 100 NoBreakerRequired
PT2Ͳ40Ͳ220Ͳ1GͲL1 100 30ABreakerRequired
PT2Ͳ40Ͳ120/240Ͳ2GͲL1 100 NoBreakerRequired
PT2Ͳ40Ͳ120/208Ͳ3GYͲL1 100 NoBreakerRequired
PT2Ͳ40Ͳ220/380Ͳ3GYͲL1 65 20ABreakerRequired
PT2Ͳ40Ͳ277/480Ͳ3GYͲL1 65 20ABreakerRequired
nSuitableforuseonacircuitcapableofdeliveringnot
morethan65or100kARMSsymmetricalamperes
Table 1 - Overcurrent Protection Required
5

Relay contacts shown in the relaxed position (SPD alarm or loss of power)
NOTE: Maximum torque on terminals is 10 in-lb.
1. Apply power to the panel. The Green function status LED
will illuminate. If the LED is not on, remove power and
review all of the previous installation procedures.
2. Troubleshooting – If after a known heavy lightning strike
has occurred and the LED is not on, reset the circuit
breaker if the SPD is tied to the breaker. If the function
LED comes back on, then the protector is fine. If the LED
is still off, or you cannot reset the breaker, the protector
must be replaced.
Connecting the Remote Contacts to an Alarm
Operation
For “Fail-Safe” form C monitoring, connect
the alarm leads to terminals 2 and 3.
Terminals 2 and 3 will be closed during
normal (Power ON) operation and the SPD
is functioning properly. If the SPD should
fail, contacts 2 and 3 will open and contacts
1 and 2 will close. Relay contacts are rated
at 5A at 250 VAC or 30 VDC maximum,
50mVA minimum.
6

7

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Product Application 860-507-2025, Ext. 72058
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