The need for surge protection
Today’s world is full of electronic products and devices that are
susceptible to damage from overvoltage surges.
Whether the cause is static discharge or lightning, overvoltage
surges can quickly destroy industrial, commercial and consumer
electronics.
Bussmann series surge protection products help provide power
quality that’s free from damaging surges.
UL-SPD part number explanation*
BSP
BSP = product series
Technology type
M = MOV
Poles
1 = 1-pole, 1 wire, 2 = 2-pole, 2 or 3 wire
3 = 3-pole, 3 wire, 4 = 4-pole, 4 wire
System voltage
120 = 120Vac, 347 = 347Vac, 208 = 208Vac
480 = 480Vac, 240 = 240Vac, 600 = 600Vac
System type
S2G = Single-phase, 2 Wire
S3G = Single-phase (Split), 3 Wire
DLG = Delta
WYG = Wye
HLG = Highleg Delta
WYNG = Wye with neutral and ground
Optional remote contact signaling
R = Optional contact signaling
Blank = No remote switch option
*
This is not a catalog number system for configuring and ordering an SPD for a particular application.
It is an explanation of the available black label high SCCR DIN-Rail SPD catalog numbers.
M
X
XXX
XXX
X
Complete line of surge protection solutions
Power distribution
Control panel
Data signal
Legend
MOV Varistor
1-pole (2 wire) and single-phase
two (2) connection points
L
L1
MOV
12
11
14
2-pole (2 wire / 3 wire) three (3) connection points
L
L1
L2
L1
L2
N
MOV
12
11
14
L
12
11
14
Optional remote
contact signaling
Thermodynamic
element
Ground
Capacitive
coupling
12
11
14
Optional Remote
Signal Contact
Thermal
N
12
11
14
Optional Remote
Signal Contact
120, 240, 347Vac 2 wire systems
Disconnector
L1
L2
N
L3
Gnd/N
Gnd/N
240/480Vac
Single-phase (split) center tap
BSPM2240S3G, BSPM2480S3G
L1
L2
N
L3
Thermal
120/240V,
Disconnector
120/208V, 277/480Vac
3 wire Wye system
BSPM2240S3G, BSPM2480S3G
L1
L2
Gnd/N
Circuit diagram
Circuit diagram
120, 277, 347Vac 2 wire Wye systems
Resistor
Part numbers for all systems
BSPM1120S2G, BSPM1240S2G, BSPM1347S2G
2 wire ungrounded delta
2 wire corner grounded delta
240, 480Vac
BSPM2440S3G, BSPM2480S3G
3-pole (3 wire) 3-phase four (4) connection points
L1
L2
L3
L1
L2
L1
L2
4-pole (4 wire) 3-phase five (5) connection points
L1
L2
L1
12
11
14
MOV
12
11
14
L2
L3
N
N
L3
Optional Remote
Signal Contact
Thermal
Disconnector
L3
12
11
14
MOV
12
11
14
L3
Gnd/N
Gnd/N
208, 480, 600Vac
208V, 480V, 600Vac
Wye 3-phase, 3 wire + ground
BSPM3208WYG, BSPM3480WYG, BSPM3600WYG
L1
L2
L3
Gnd
Gnd
Optional Remote
Signal Contact
Circuit diagram
240, 480Vac
Delta 3-phase, 3 wire + ground
BSPM3240DLG, BSPM3480DLG
127/220V, 277/480V, 347/600Vac
Wye 3-phase, 4 wire + ground
BSPM4208WYNG, BSPM4480WYNG, BSPM4600WYNG
(Highleg)
Thermal
Disconnector
120/208V,
Circuit diagram
120/240V, 240/480Vac
Highleg Delta, 3-phase, 4 wire + ground
BSPM4240HLG, BSPM4480HLG
L2
L1
N
L3
Eaton
1000 Eaton Boulevard
Cleveland, OH 44122
United States
Eaton.com
Bussmann Division
114 Old State Road
Ellisville, MO 63021
United States
Eaton.com/bussmannseries
© 2017 Eaton
All Rights Reserved
Printed in USA
Publication No. 3190
March 2017
For Eaton’s Bussmann series
product information,
call
1-855-287-7626
or visit:
Eaton.com/bussmannseries
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are
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