Four-pole IEC Class II surge arresters for TN-S and TT systems
TT system arrester
The features of these four-pole devices are for use
in TT and TN-S 230/400 volt systems (“3+1” cir-
cuit) against surges.
Optional remote contact signaling
Remote
contact
signaling
available
The three-pole terminal remote contact signaling
option has a floating changeover contact for use
as a break or make contact, according to circuit
concept.
Specifications:
System volts
•
easyID™
local
visual status
indication
230
System types
•
•
TN-S
TT
Agency information
Catalog symbols:
•
•
•
•
•
•
•
CE
KEMA
RoHS compliant
BSPM4275TNS
BSPM4275TNSR
BSPH_TT
BSPH_TTR
Mounting
•
35mm DIN-Rail
Description:
Eaton’s Bussmann™ series four-pole IEC Class II
modular surge arresters feature local,
easyID™
visual status indication and optional remote
contact signaling. The unique module locking
system fixes the protection module to the base.
Modules can be easily replaced without tools by
simply depressing the release buttons. Integrated
mechanical coding between the base and
protection module ensures against installing an
incorrect replacement module.
These 230 volt models are offered with MCOV
ratings of 275, 320 or 385V.
Warranty
•
Five years
TN-S system arrester
The features of these four-pole devices are for
use in TN-S 230/400 volt systems (“4-0” circuit)
against surges.
Technical Data 1169
Effective December 2015
4-Pole IEC Class II surge arresters for 230/400 volt TN-S and TT systems
Dimensions - mm:
Module circuit diagrams:
Shown with optional remote contact signaling.
MOV
Thermal disconnector
Gas discharge tube (single)
BSPM4275TNS(R)
Shown with optional remote contact signaling.
BSPH4275TT(R)
BSPH4320TT(R)
BSPH4385TT(R)
Recommended Bussmann series back up fuses
DIN fuse size
00
0
01
02
NH fuse catalog number
125NHG00B
125NHG0B
125NHG01B
125NHG02B
2
Eaton.com/bussmannseries
4-Pole IEC Class II surge arresters for 230/400 volt TN-S and TT systems
Technical Data 1169
Effective December 2015
Ordering information:
System voltage (50-60Hz)/poles
Max. Continuous Operating Voltage (MCOV) [U
C
]
AC (50-60Hz)
Catalog numbers (base + modules)
Replacement modules
Specifications
Lightning impulse current (10/350µs) [N-PE] [I
imp
]
[L-N]
[N-PE]
W/O remote signaling
W/ remote signaling
MOV technology
Spark gap technology
230/400V / 4
275V
—
—
BSPM4275TNS
BSPM4275TNSR
BPM275IEC
—
230/400V / 4
—
275V
255V
BSPH4275TT
BSPH4275TTR
BPM275IEC
BPSNPEIEC*
230/400V / 4
—
320V
255V
BSPH4320TT
BSPH4320TTR
BPM320IEC
BPSNPEIEC*
230/400V / 4
—
385V
255V
BSPH4385TT
BSPH4385TTR
BPM385IEC
BPSNPEIEC*
12kA
—
—
≤
1.75kV
≤
1.35kV
≤
1.5kV
100A
rms
—
≤
25 ns
≤
100 ns
—
—
440V / 120 min
—
1200V / 200 ms
25kA
rms
—
12kA
12kA
≤
1.5kV
—
—
at 5kA
≤
1kV
—
—
[L-N]
—
≤
1.5kV
≤
1.5kV
Voltage protection level [U
P
]
[L-N] at 5kA —
≤
1kV
≤
1.2kV
[N-PE]
—
≤
1.5kV
≤
1.5kV
—
100A
rms
100A
rms
Follow current extinguishing capability [N-PE] [I
fi
]
≤
25 ns
—
—
Response time [t
A
]
[L-N]
—
≤
25 ns
≤
25 ns
[N-PE]
—
≤
100 ns
≤
100 ns
Withstand
335V / 5 sec.
—
—
Safe failure 440V / 120 min. —
—
Withstand
—
335V / 5 sec.
335V / 5 sec.
Temporary overvoltage (TOV) [U
T
]
[L-N]
Safe failure —
440V / 120 min 440V / 120 min
[N-PE]
Withstand
—
1200V / 200 ms 1200V / 200 ms
Short-circuit withstand capability for max. mains-side overcurrent
50kA
rms
50kA
rms
25kA
rms
protection
(I
SCCR
)
SPD according to
EN 61643-11 Type 2, IEC 61643-11 Class II
230 / 400V
Nominal AC voltage [U
N
]
Nominal discharge current (8/20µs) [I
n
]
20kA
40kA
Max. discharge current (8/20µs) [I
max
]
Max. mains-side overcurrent protection
125A gG
TOV characteristics
Withstand
-40°C to +80°C, 5% to 95% RH
Operating environment [T
U
]
Operating state/fault indication
Green (good) / Red (replace)
Number of ports
1
Min.
1.5mm
2
/14AWG solid/flexible
Cross-sectional area
Max.
35mm
2
/2AWG stranded — 25mm
2
/4AWG flexible
Mounting
35mm DIN-Rail per EN 60715
Enclosure material
Thermoplastic, UL 94V0
Location category
Indoor
Degree of protection
IP20
Capacity
4 mods., DIN 43880
Agency information
KEMA
Product warranty
Five years**
Remote contact signaling
Contact signaling type
Switching capacity (volts/amps)
Conductor ratings and cross-sectional area
Ordering information
AC
DC
Changeover contact
250V/0.5A
250V/0.1A; 125V/0.2A; 75V/0.5A
60/75°C Max. 1.5mm
2
/14AWG solid/flexible
Order from catalog numbers above
* N-PE surge arrester module for location between neutral conductor and protective conductor in TT systems.
** See Eaton’s Bussmann series SPD limited warranty statement (3A1502) for details at www.cooperbussmann.com/surge.
Eaton.com/bussmannseries
3
Technical Data 1169
Effective December 2015
4-Pole IEC Class II surge arresters for 230/400 volt TN-S and TT systems
The only controlled copy of this data sheet is the electronic read-only version located on the Eaton network drive. All other copies of this document are
by definition uncontrolled. This bulletin is intended to clearly present comprehensive product data and provide technical information that will help the
end user with design applications. Eaton reserves the right, without notice, to change design or construction of any products and to discontinue or limit
distribution of any products. Eaton also reserves the right to change or update, without notice, any technical information contained in this bulletin. Once
a product has been selected, it should be tested by the user in all possible applications.
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