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Phoenix ContactOfficial Distributor

By Phoenix Contact

SKU
MPN
STTB 2,5/2P BU
Weight
0.01 kg
This product is Not Cancellable/Not Returnable
Series STTB

STTB 2,5/2P BU - Double-level terminal block

Double-level terminal block, Current and voltage are determined by the plug used., nom. voltage: 500 V, nominal current: 22 A, connection method: Spring-cage/plug-in connection, 1st and 2nd level connection left, Rated cross section: 2.5 mm2, cross section: 0.08 mm2 - 4 mm2, 1st and 2nd level connection right, mounting type: NS 35/15, NS 35/7,5, color: blue

  • Tested for railway applications
  • Potential routing on two levels
Technical Specifications

Notes

GeneralCurrent and voltage are determined by the plug used.

Product properties

Area of applicationRailway industry
Area of applicationMachine building
Area of applicationPlant engineering
Number of Connections4
Number of rows2
Potentials2

Insulation characteristics

Overvoltage categoryIII
Degree of pollution3

Electrical properties

Rated surge voltage6 kV
Maximum power dissipation for nominal condition0.77 W

Connection data

Number of connections per level2
Nominal cross section2.5 mm²

1st and 2nd level connection left

Stripping length8 mm ... 10 mm
Internal cylindrical gageA3
Connection in acc. with standardIEC 61984
Conductor cross section rigid0.08 mm² ... 4 mm²
Cross section AWG28 ... 12 (converted acc. to IEC)
Conductor cross section flexible0.08 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 sleeve0.5 mm²
Nominal Current22 A
Maximum Load Current22 A (with 4 mm² conductor cross section)
Nominal Voltage500 V
Nominal cross section2.5 mm²

Dimensions

Width5.2 mm
End cover width2.2 mm
Height71.5 mm
Depth on NS 35/7,547.5 mm
Depth on NS 35/1555 mm

Material specifications

Colorblue
Flammability rating according to UL 94V0
Insulating material groupI
Insulating materialPA
Static insulating material application in cold-60 °C
Temperature index of insulation material (DIN EN 60216-1 (VDE 0304-21))130 °C
Relative insulation material temperature index (Elec., UL 746 B)130 °C
Fire protection for rail vehicles (DIN EN 45545-2) R22HL 1 - HL 3
Fire protection for rail vehicles (DIN EN 45545-2) R23HL 1 - HL 3
Fire protection for rail vehicles (DIN EN 45545-2) R24HL 1 - HL 3
Fire protection for rail vehicles (DIN EN 45545-2) R26HL 1 - HL 3
Calorimetric heat release NFPA 130 (ASTM E 1354)28 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

Surge voltage test

Test voltage setpoint7.3 kV
ResultTest passed
Short-time withstand current 2.5 mm²0.3 kA
ResultTest passed

Power-frequency withstand voltage

Test voltage setpoint1.89 kV
ResultTest passed

Mechanical data

Open side panelYes

Attachment on the carrier

DIN rail/fixing supportNS 35
Test force setpoint1 N
ResultTest passed

Needle-flame test

Time of exposure30 s
ResultTest passed

Oscillation/broadband noise

SpecificationDIN EN 50155 (VDE 0115-200):2008-03
SpectrumService life test category 1, class B, body mounted
Frequencyf1 = 5 Hz to f2 = 150 Hz
ASD level0.964 (m/s²)²/Hz
Acceleration0.58g
Test duration per axis5 h
Test directionsX-, Y- and Z-axis
ResultTest passed

Shocks

SpecificationDIN EN 50155 (VDE 0115-200):2008-03
Pulse shapeHalf-sine
Acceleration5g
Shock duration30 ms
Number of shocks per direction3
Test directionsX-, Y- and Z-axis (pos. and neg.)
ResultTest passed

Ambient conditions

Ambient Temperature (Operation)-60 °C (max. operating temperature see derating curve)
Ambient temperature (storage/transport)-25 °C ... 60 °C (for a short time, no longer than 24 h, -60°C to +70°C)
Ambient temperature (assembly)-5 °C ... 70 °C
Ambient temperature (actuation)-5 °C ... 70 °C
Permissible humidity (operation)20 % ... 90 %
Permissible humidity (storage/transport)30 % ... 70 %

Standards and Regulations

Connection in acc. with standardIEC 61984

Mounting

Mounting TypeNS 35/15
Mounting TypeNS 35/7,5
Accessories

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Additional Information

Pack Size50
Recommended
Sold in quantities of 50

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