GENERAL
1. This document provides detailed information on how to install and operate the BPT Series of Surge Protection Devices (SPD)
2. Locate a position to mount the SPD that will minimize the length of connecting wires required. SPD’s should be
located as close as possible to the AC panel or service area. Mount the units using the mounting holes provided on the
enclosure as shown by the illustrations in these instructions. It is recommended that conduit, preferably metallic, be
utilized to accomplish this connection.
3. The BPT Series is installed and connected in parallel (“shunt”) across the AC supply to be protected. Connecting wires
do not carry the supply current, only the short duration currents associated with the suppression of a transient event.
4. Identified or indicated leads/wires must be connected exactly with respect to the AC Power feeding the SPD. Failure
to do so may result in damage to the device or post a danger to personnel.
5. Installation of this device should only be performed by a qualified licensed installer. Incorrect installation may
siginificantly impair the performance of the Surge Protection Device. It is particularly important that all installation
procedures and guidelines be followed exactly.
6. Before starting any installation procedures, verify service voltages with an AC voltmeter to ensure that the correct SPD
model has been selected.
7. Check to ensure that all connections are correct and secure before energizing.
8. Keep this manual in a safe, dry place for future reference.
INSTALLATION INSTRUCTION
Before starting the installation, measure the Line voltage with an AC voltmeter to ensure the correct device has been
selected for the current application. The MCOV (maximum continuous operating voltage) CANNOT exceed the
maximum limits for the following service voltages:
120VAC = 150MCOV
220VAC = 320MCOV
230VAC = 320MCOV
240VAC = 320MCOV
277VAC = 320MCOV
480VAC = 550MCOV
STANDARD ELECTRICAL CONFIGURATIONS
120 or 240VAC, Single Phase, 2 Wire + Ground
120 or 240VAC
PHASE
NEUTRAL
GND
PHASE A
NEUTRAL
GND
PHASE B
PHASE A
GND
PHASE B
PHASE C
NEUTRAL
PHASE A
GND
PHASE B
PHASE C
NEUTRAL
PHASE A
GND
PHASE B
PHASE C
120 /240VAC, Split Phase, 3 Wire + Ground
240 or 480VAC, Three Phase Delta, 3 Wire + Ground
120/240VAC, Three Phase Delta, 4 Wire + Ground
120/208VAC, Three Phase Wye, 4 Wire + Ground
or
277/480VAC, Three Phase Wye, 4 Wire + Ground
Requires a 1 Pole Breaker
[Figure #3]
Requires a 2 Pole Breaker
[Figure #4]
Requires a 3 Pole Breaker
[Figure #5]
Requires a 3 Pole Breaker
[Figure #6]
Requires a 3 Pole Breaker
[Figure #7]
120VAC
120VAC
240 OR 480
VAC
240 OR 480
VAC
240 OR 480
VAC
208 or 480
VAC
208 or 480VAC
208 or 480
VAC
240
VAC
240
VAC
208
VAC
120VAC
120VAC
(High Leg) “Orange”
120 or 277
VAC
120 or 277
VAC
120 or 277
VAC
NOTE:
Wye Configuration is
also applicable for:
220/380VAC
230/400VAC
240/415VAC
1. Connect the ground wire to the service panel ground buss.
2. Connect the neutral wire from the service panel neutral buss to the lug labeled neutral. (Not Applicable for Delta Applications)
3. Connect the phase (hot) wires from a 3 pole breaker to the SPD device connectors labeled phase “A”, “B”, and “C”, as appropriate.
4. Attach and crimp (supplied) lug connectors to each #8 or #10 AWG wire, as required, before inserting it into the terminal block.
5. Tighten the lug screw securely.
6. Check all connections to ensure they are correct and properly secured.
G
PHASE
FAULT
N-G
FAULT
TEST
DISABLE
ENABLE
PHASE PHASE
NOTE: BEFORE
ENERGIZING THE SPD:
ENSURE ALL
CONNECTIONS ARE
CORRECT. DO NOT
ENERGIZE WITH FRONT
COVER OPEN
3 POLE BREAKER
KEEP WIRES AS
SHORT AS POSSIBLE
[Figure #8: 3 Ø Phase
Wye Wire Hook-up]
[Figure #9: 3 Ø Phase Wye
Breaker Hook-up]
Notes:
1. For Single Phase Models, Phase “A” and Phase “C”
lines are left vacant.
2. For Split Phase Models, Phase “B” is left vacant.
3. For Delta Configurations, the Neutral position is left
vacant.
4. Use #10 to 1/0 Wire for installation.
BPT (100/200) Models:
The specific product you have in service may be configured
for any one of the following kA ratings: (100=100kA/Phase)
and (200=200kA/Phase)
120 or 240VAC, Single Phase
120/240VAC, Split Phase
240 or 480VAC, 3 Phase Delta
120/208VAC, 3 Phase Wye
120/240VAC, 3 Phase Delta
(High Leg)
277/480VAC, 3 Phase Wye
220/380VAC, 3 Phase Wye
230/400VAC, 3 Phase Wye
240/415VAC, 3 Phase Wye
[Figure #10: Internal Layout]
The device shall be fed from a 30 Amp breaker, in accordance
to the number of poles required.
Single Phase = 1 Pole Breaker
Split Phase = 2 Pole Breaker
Three Phase = 3 Pole Breaker
High Leg Delta = Phase “B” Orange
Delta Units have no Neutral
Because the SPD is installed in parallel or shunt with the load,
VA rating is not limited.
= 1 Pole Breaker
= 2 Pole Breaker
= 3 Pole Breaker
= Phase “B” Orange
