TT-STTB-24 2858140 PHOENIX CONTACT Surge protection device View larger
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TT-STTB-24 2858140 PHOENIX CONTACT Surge protection device

TT-STTB-24

2858140

PHOENIX_CONTACT

Surge protection device

Spring-cage terminal block with suppressor diode as fine surge protection, nominal voltage 24 V DC, for mounting on NS 35/7.5

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Trabtech (TT)

Brand new product in its original packaging covered by the warranties and certifications provided by PHOENIX_CONTACT

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Technical data

Product properties
Product typeSurge protection for MCR technology
IEC test classificationC3
VDE requirement classC3
TypeDouble-level terminal block
Surge protection fault messagenone
Wire pairs per module1

Electrical properties
Nominal voltage UN24 V DC

Connection data
Connection methodSpring-cage connection
Conductor cross section flexible0.5 mm² ... 4 mm²
Conductor cross section rigid0.5 mm² ... 6 mm²
Conductor cross section AWG20 ... 10

Dimensions
Dimensional drawingycbutnkzwn.jpg
Width6.2 mm
Height83.5 mm
Depth47.5 mm

Material specifications
Flammability rating according to UL 94V-0
Housing materialPA 6.6

Mechanical properties
Mechanical data
Open side panelYes

Protective circuit
Direction of actionLine-Line
Maximum continuous voltage UC40 V DC
28 V AC
Rated current32 A (60 °C)
Operating effective current ICat UC≤ 5 µA
Nominal discharge current In(8/20) µs (line-line)119 A
Total discharge current Itotal(8/20) µs119 A
Max. discharge current Imax(8/20) µs maximum (line-line)119 A
Nominal pulse current Ian (10/1000) µs (line-line)23 A
Output voltage limitation at 1 kV/µs (line-earth) spike≤ 60 V
Output voltage limitation at 1 kV/µs (line-line) static≤ 60 V
Residual voltage at In(conductor-conductor)≤ 80 V
Residual voltage with Ian (10/1000) µs (line-line)≤ 65 V
Voltage protection level Up(line-line)55 V (C3 - 10 A)
Response time tA(line-line)≤ 1 ns
Input attenuation aE, sym.0.1 dB (≤ 400 kHz / 150 Ω)
Cut-off frequency fg (3 dB), sym. in 150 Ω systemtyp. 2 MHz
Capacity (Core-Core)1.1 nF (with 1 MHz)
Surge protection fault messagenone
Impulse durability (line-line)C3 - 10 A

Environmental and real-life conditions
Ambient conditions
Degree of protectionIP20
Ambient temperature (operation)-40 °C ... 85 °C

Standards and regulations
VDE requirement classC3
Air clearances and creepage distances
Standards/regulationsIEC 60664-1 / VDE 0110-1
Standards Information technology specification
Standards/regulationsIEC 61643-21
IEC 61643-21
Standards/specificationsIEC 61643-21
Note2000

Mounting
Mounting typeDIN rail: 35 mm

Datasheet - PDF

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