https://www.phoenixcontact.com/us/produkte/2858881
Surge protection device - TT-ST-2/2-24DC - 2858881
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Spring cage modular terminal block with integrated surge protection, for assembly on NS 35/7.5,
voltage U<sub>N</sub> 24 V DC, terminal width: 6.2 mm, cover width: 2.2 mm
Why buy this product
Multi-stage modular terminal blocks with spring-cage connection
Disconnection of signal circuits by disconnect knife
Key commercial data
Packing unit
Minimum order quantity
Catalog page
GTIN
Custom tariff number
Country of origin
85363030
GERMANY
1
1
Page 109 (TT-2011)
Technical data
General
Housing material
Inflammability class according to UL 94
Color
Standards for air and creepage distances
Standards for air and creepage distances
Surge voltage category
Pollution degree
Total surge current (8/20) µs
Total surge current (10/350) µs
Ambient temperature (operation)
Mounting type
Design
Number of positions
Degree of protection
PA 6.6
V2
black
EN 60664-1
IEC 60664-1
III
2
10 kA
2 kA
-40 °C ... 85 °C
DIN rail: 35 mm
Double-level terminal block
2
IP20
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https://www.phoenixcontact.com/us/produkte/2858881
Surge protection device - TT-ST-2/2-24DC - 2858881
Technical data
General
Direction of action
Width
Height
Depth
Line-Earth Ground
6.2 mm
100 mm
63.5 mm
Protective circuit
IEC category
IEC category
IEC category
IEC category
VDE requirement class
VDE requirement class
VDE requirement class
VDE requirement class
Nominal voltage UN
Maximum continuous operating voltage UC
Maximum continuous operating voltage UC
Maximum continuous voltage UC (wire-ground)
Maximum continuous voltage UC (wire-ground)
Nominal current IN
Operating effective current IC at UC
Ground conductor current IPE
Nominal discharge surge current In (8/20) µs (Core-Earth)
Total surge current (8/20) µs
Max. discharge surge current Imax (8/20) µs maximum (Core-
Earth)
Nominal pulse current Ian (10/1000) µs (Core-Earth)
Nominal pulse current Ian (10/1000) µs (Core-Earth)
Lightning test current (10/350) µs, peak value limp
Output voltage limitation at 1 kV/µs (Core-Earth) spike
Output voltage limitation at 1 kV/µs (Core-Earth) static
Residual voltage at In, (conductor-ground)
Residual voltage with Ian (10/1000)µs (conductor-ground)
Protection level UP (Core-Earth)
Protection level UP (Core-Earth)
Response time tA (Core-Earth)
Input attenuation aE, asym.
Input attenuation aE, asym.
Input attenuation aE, asym.
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
C1
C2
C3
D1
C1
C2
C3
D1
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
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))
≤ 40 V (static)
≤ 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)
Typ. 3 MHz
Typ. 1 MHz
Typ. 250 kHz
2 nF
9.4 Ω ±10 % (per path)
04.10.2012 Page 2 / 6
https://www.phoenixcontact.com/us/produkte/2858881
Surge protection device - TT-ST-2/2-24DC - 2858881
Technical data
Protective circuit
Resistance in series
Message: Surge protection fault
Max. required back-up fuse
Surge carrying capacity in acc. with IEC 61643-21 (Core-Earth)
Surge carrying capacity in acc. with IEC 61643-21 (Core-Earth)
Surge carrying capacity in acc. with IEC 61643-21 (Core-Earth)
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
eclass
eCl@ss 4.0
eCl@ss 4.1
eCl@ss 5.0
eCl@ss 5.1
eCl@ss 6.0
eCl@ss 7.0
27140201
27130801
27130801
27130801
27130807
27130807
etim
ETIM 2.0
ETIM 3.0
ETIM 4.0
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
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Surge protection device - TT-ST-2/2-24DC - 2858881
Approvals
Approvals
GOST / GOST / UL Listed
Ex Approvals
Approvals submitted
Approval details
GOST
GOST
UL Listed
Accessories
Accessories
Marking
Marker pen - B-STIFT - 1051993
Marker pen, for manual labeling of unprinted Zack strips, smear-proof and waterproof, line thickness 0.5 mm
Zack Marker strip, flat - ZBF 6:UNBEDRUCKT - 0808710
Zack Marker strip, flat, Strip, white, Unlabeled, Can be labeled with: Plotter, Mounting type: Snap into flat
marker groove, For terminal block width: 6.2 mm, Lettering field: 5.15 x 6.15 mm
04.10.2012 Page 4 / 6
https://www.phoenixcontact.com/us/produkte/2858881
Surge protection device - TT-ST-2/2-24DC - 2858881
Accessories
Zack Marker strip, flat - ZBF 6/WH-100:UNBEDRUCKT - 0808736
Zack Marker strip, flat, Strip, white, Unlabeled, Can be labeled with: Plotter, Mounting type: Snap into flat
marker groove, For terminal block width: 6.2 mm, Lettering field: 5.15 x 6.15 mm
Zack Marker strip, flat - ZBF 6,LGS:FORTL.ZAHLEN - 0808749
Zack Marker strip, flat, Strip, white, Labeled, Printed horizontally: Consecutive numbers 1 - 10, 11 - 20, etc.
up to 91 - 100, Mounting type: Snap into flat marker groove, For terminal block width: 6.2 mm, Lettering
field: 5.15 x 6.15 mm
End cover - TT-D-STTCO-BK - 2858894
End cover for TERMITRAB TT-ST-..., width: 2.2 mm, color: Black
Additional products
End cover - TT-D-STTCO-BK - 2858894
End cover for TERMITRAB TT-ST-..., width: 2.2 mm, color: Black
Shield connection - SSA 3-6 - 2839295
shield fast connections for conductor diameter 3 - 6 mm. Potential connection cable: 200 mm, black
04.10.2012 Page 5 / 6