https://www.phoenixcontact.com/us/products/2858917
Surge protection device - TT-ST-M-2/2-24DC - 2858917
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TERMITRAB, spring-cage modular terminal block with integrated surge protection and disconnect knives, for
assembly on NS 35/7.5, voltage U
N
24 V DC, terminal width: 6.2 mm, cover width: 2.2 mm
Product Features
Disconnection of signal circuits by disconnect knife
Multi-stage modular terminal blocks with spring-cage connection
Packing unit
1 pc
31.39 GRM
85363030
Germany
Key commercial data
Weight per Piece (excluding packing)
Custom tariff number
Country of origin
Technical data
Dimensions
Height
Width
Depth
100 mm
6.2 mm
63.5 mm
Ambient conditions
Ambient temperature (operation)
Degree of protection
-40 °C ... 85 °C
IP20
General
Housing material
Inflammability class according to UL 94
Color
Standards for air and creepage distances
PA 6.6
V2
black
EN 60664-1
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Surge protection device - TT-ST-M-2/2-24DC - 2858917
Technical data
General
IEC 60664-1
Surge voltage category
Pollution degree
Mounting type
Type
Number of positions
Direction of action
III
2
DIN rail: 35 mm
Double-level terminal block with disconnect knife
2
Line-Earth Ground
Protective circuit
IEC test classification
C1
C2
C3
D1
VDE requirement class
C1
C2
C3
D1
Nominal voltage U
N
Maximum continuous operating voltage U
C
Maximum continuous voltage U
C
(wire-ground)
Nominal current I
N
Operating effective current I
C
at U
C
Residual current I
PE
Nominal discharge current I
n
(8/20) µs (Core-Earth)
Total surge current (8/20) µs
Total surge current (10/350) µs
Max. discharge current I
max
(8/20) µs maximum (Core-Earth)
Nominal pulse current Ian (10/1000) µs (Core-Earth)
Impulse discharge current (10/350)½µs, peak value l
imp
Output voltage limitation at 1 kV/µs (Core-Earth) spike
Output voltage limitation at 1 kV/µs (Core-Earth) static
Residual voltage at I
n
, (conductor-ground)
Residual voltage with Ian (10/1000)µs (conductor-ground)
Voltage protection level U
P
(Core-Earth)
24 V DC
30 V DC
21 V AC
30 V DC
21 V AC
300 mA (45°C)
≤ 10 µA (per path)
≤ 20 µA
5 kA
10 kA
2 kA
5 kA
100 A
200 A (in total)
1 kA (per path)
≤ 40 V
≤ 40 V
≤ 40 V
≤ 45 V
≤ 80 V (C2 - 10 kV / 5 kA)
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https://www.phoenixcontact.com/us/products/2858917
Surge protection device - TT-ST-M-2/2-24DC - 2858917
Technical data
Protective circuit
≤ 40 V (static)
Response time tA (Core-Earth)
Input attenuation aE, asym.
≤ 1 ns
typ. 0.6 dB (500 kHz/50 Ω system)
typ. 0.1 dB (170 kHz/150 Ω system)
typ. 0.1 dB (40 kHz/600 Ω system)
Cut-off frequency fg (3 dB), asym. (PE) in 50 Ohm system
Cut-off frequency fg (3 dB), asym. (PE) in 150 Ohm system
Cut-off frequency fg (3 dB), asym. (PE) in 600 Ohm system
Capacity (Core-Earth)
Resistance in series
Surge protection fault message
Max. required back-up fuse
Surge carrying capacity in acc. with IEC 61643-21 (Core-Earth)
typ. 3 MHz
typ. 1 MHz
typ. 250 kHz
2 nF
9.4 Ω ±10 % (per path)
9.4 Ω
None
315 mA
C2 (10 kV/5 kA)
D1 (1 kA)
C3 (100 A)
Connection data
Connection method
Connection type IN
Connection type OUT
Conductor cross section stranded min.
Conductor cross section stranded max.
Conductor cross section solid min.
Conductor cross section solid max.
Conductor cross section AWG/kcmil min.
Conductor cross section AWG/kcmil max
Spring-cage connection
Spring-cage
Spring-cage
0.2 mm²
2.5 mm²
0.2 mm²
4 mm²
24
12
Classifications
eCl@ss
eCl@ss 4.0
eCl@ss 4.1
eCl@ss 5.0
eCl@ss 5.1
eCl@ss 6.0
eCl@ss 7.0
eCl@ss 8.0
27140201
27130801
27130801
27130801
27130807
27130807
27130807
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https://www.phoenixcontact.com/us/products/2858917
Surge protection device - TT-ST-M-2/2-24DC - 2858917
Classifications
ETIM
ETIM 2.0
ETIM 3.0
ETIM 4.0
ETIM 5.0
EC000943
EC000943
EC000943
EC000943
UNSPSC
UNSPSC 6.01
UNSPSC 7.0901
UNSPSC 11
UNSPSC 12.01
UNSPSC 13.2
30212010
39121610
39121610
39121610
39121620
Approvals
Approvals
Approvals
GOST / GOST / UL Listed / GL
Ex Approvals
Approvals submitted
Approval details
GOST
GOST
UL Listed
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https://www.phoenixcontact.com/us/products/2858917
Surge protection device - TT-ST-M-2/2-24DC - 2858917
Approvals
GL
Drawings
Dimensioned drawing
1
100
6,2
Circuit diagram
3
IN
OUT
65,1
71
2
4
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