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PHOENIX CONTACT 3031270
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STTB 2,5 - Double-level spring-cage terminal block

Double-level spring-cage terminal block, nom. voltage: 500 V, nominal current: 22 A, connection method: Spring-cage connection, Rated cross section: 2.5 mm2, cross section: 0.08 mm2 - 4 mm2, mounting type: NS 35/7,5, NS35/15, color: gray
Product Code: 3031270
Partner cod.: 3031270
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Tecnichal data
Technical Specs
Description
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Tecnichal data
NotesGeneral
Note: When establishing a connection on the open housing side of a feed-through modular terminal block of the same series and size, the block must be provided with a cover if the expected insulation voltage is >320 V.
The max. load current must not be exceeded by the total current of all connected conductors.
Product propertiesProduct type: Multi-level terminal block
Area of application: Railway industry
Machine building
Plant engineering
Process industry
Number of connections: 4
Number of rows: 2
Potentials: 2
Insulation characteristics
Overvoltage category: III
Degree of pollution: 3
Electrical propertiesRated surge voltage: 6 kV
Maximum power dissipation for nominal condition: 0.77 W
Connection dataNumber of connections per level: 2
Nominal cross section: 2.5 mm²
Stripping length: 8 mm ... 10 mm
Internal cylindrical gage: A3
Connection in acc. with standard: IEC 60947-7-1
Conductor cross section rigid: 0.08 mm² ... 4 mm²
Cross section AWG: 28 ... 12 (converted acc. to IEC)
Conductor cross section flexible: 0.08 mm² ... 2.5 mm²
Conductor cross section, flexible [AWG]: 28 ... 14 (converted acc. to IEC)
Conductor cross-section flexible (ferrule without plastic sleeve): 0.14 mm² ... 2.5 mm²
Flexible conductor cross section (ferrule with plastic sleeve): 0.14 mm² ... 2.5 mm²
2 conductors with the same cross section, flexible, with TWIN ferrule with plastic sleeve: 0.5 mm²
Nominal current: 22 A
Maximum load current: 26 A (with 4mm² conductor cross section)
Nominal voltage: 500 V
Ex dataRated data (ATEX/IECEx)
Identification: √ɬĮ¬Ā¬ėII2GDEx eb IIC Gb
Operating temperature range: -60°C ... 110°C
Ex-certified accessories: 3030459 D-STTB 2,5
3030747 ATP-STTB 4
1204517 SZF 1-0,6X3,5
3022276 CLIPFIX 35-5
3022218 CLIPFIX 35
List of bridges: Plug-in bridge/FBS 2-5/3030161
Plug-in bridge/FBS 3-5/3030174
Plug-in bridge/FBS 4-5/3030187
Plug-in bridge/FBS 5-5/3030190
Plug-in bridge/FBS 10-5/3030213
Plug-in bridge/FBS 20-5/3030226
Bridge data: 17 A/2.5 mm²
Ex temperature increase: 40 K (21.9A/2.5mm²)
Rated voltage: 440 V
for bridging with bridge: 440 V
- At bridging between non-adjacent terminal blocks: 352 V
- At bridging between non-adjacent terminal blocks via PE terminal block: 352 V
- At cut-to-length bridging with cover: 220 V
- At cut-to-length bridging with partition plate: 220 V
Rated insulation voltage: 400 V
output: (Permanent)
Ex level General
Rated current: 19.5 A
Maximum load current: 23.5 A
Ex connection data General
Nominal cross section: 2.5 mm²
Rated cross section AWG: 14
Connection capacity rigid: 0.08 mm² ... 4 mm²
Connection capacity AWG: 28 ... 12
28 ... 14
Connection capacity flexible: 0.08 mm² ... 2.5 mm²
output: (Permanent)
Ex level Level 1
Contact resistance: 1.04 mΩ
output: (Permanent)
Ex level Level 2
Contact resistance: 0.83 mΩ
DimensionsWidth: 5.2 mm
End cover width: 2.2 mm
Height: 67.5 mm
Depth on NS35/7,5: 47.5 mm
Depth on NS35/15: 55 mm
Material specificationsColor: gray
Flammability rating according to UL 94: V0
Insulating material group: I
Insulating material: PA
Static insulating material application in cold: -60°C
Temperature index of insulation material (DIN EN 60216-1 (VDE 0304-21)): 125°C
Relative insulation material temperature index (Elec., UL 746 B): 130°C
Fire protection for rail vehicles (DIN EN 45545-2) R22: HL 1 - HL 3
Fire protection for rail vehicles (DIN EN 45545-2) R23: HL 1 - HL 3
Fire protection for rail vehicles (DIN EN 45545-2) R24: HL 1 - HL 3
Fire protection for rail vehicles (DIN EN 45545-2) R26: HL 1 - HL 3
Calorimetric heat release NFPA 130 (ASTM E 1354): 27,5 MJ/kg
Surface flammability NFPA 130 (ASTM E 162): passed
Specific optical density of smoke NFPA 130 (ASTM E 662): passed
Smoke gas toxicity NFPA 130 (SMP 800C): passed
Electrical testsSurge voltage test
Test voltage setpoint: 7.3 kV
Result: Test passed
Temperature-rise test
Requirement temperature-rise test: Increase in temperature √ɬʬȬ§45K
Result: Test passed
Short-time withstand current 2.5 mm²: 0.3 kA
Power-frequency withstand voltage
Test voltage setpoint: 1.89 kV
Result: Test passed
Mechanical propertiesMechanical data
Open side panel: Yes
Mechanical testsMechanical strength
Result: Test passed
Attachment on the carrier
DIN rail/fixing support: NS32/NS35
Test force setpoint: 1 N
Result: Test passed
Test for conductor damage and slackening
Rotation speed: 10 (+/- 2) rpm
Revolutions: 135
Conductor cross section/weight: 0.08 mm² / 0.1 kg
2.5 mm² / 0.7 kg
4 mm² / 0.9 kg
Result: Test passed
Environmental and real-life conditionsAging
Temperature cycles: 192
Result: Test passed
Needle-flame test
Time of exposure: 30 s
Result: Test passed
Oscillation/broadband noise
Specification: DINEN50155 (VDE0115-200):2018-05
Spectrum: Service life test category2, bogie-mounted
Frequency: f1 = 5 Hz to f2 = 250 Hz
ASD level: 6.12 (m/s²)²/Hz
Acceleration: 3.12g
Test duration per axis: 5 h
Test directions: X-, Y- and Z-axis
Result: Test passed
Shocks
Specification: DINEN50155 (VDE0115-200):2008-03
Pulse shape: Half-sine
Acceleration: 30g
Shock duration: 18ms
Number of shocks per direction: 3
Test directions: X-, Y- and Z-axis (pos. and neg.)
Result: Test passed
Ambient conditions
Ambient temperature (operation): -60°C ... 105°C (max. short-term operating temperature RTI Elec.)
Ambient temperature (storage/transport): -25°C ... 60°C (for a short time, not exceeding 24h, -60°C to +70°C)
Ambient temperature (assembly): -5°C ... 70°C
Ambient temperature (actuation): -5°C ... 70°C
Permissible humidity (storage/transport): 30 % ... 70 %
Standards and regulationsConnection in acc. with standard: IEC 60947-7-1
MountingMounting type: NS 35/7,5
NS35/15
Technical Specs
ECLASSECLASS-11.0: 27141120
ECLASS-13.0: 27250102
ETIMETIM 9.0: EC000897
UNSPSCUNSPSC 21.0: 39121400
Description
Double-level spring-cage terminal block, connection method: Spring-cage connection, cross section: 0.08 mm² - 4 mm², AWG: 28 - 12, width: 5.2 mm, color: gray, mounting type: NS 35/7,5, NS 35/15
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