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Phoenix ContactOfficial Distributor

By Phoenix Contact

SKU
MPN
3038531
Weight
0.019 kg
Series STTB

STTB 2,5-TWIN-PE/L - Feed-through terminal block

Feed-through terminal block, nom. voltage: 500 V, nominal current: 22 A, connection method: Spring-cage connection, 1st and 2nd level, Rated cross section: 2.5 mm2, cross section: 0.08 mm2 - 4 mm2, mounting type: NS 35/7,5, NS 35/15, color: gray

  • Compact design for maximum space savings
  • Low contact resistance
  • Corrosion-free terminal points
  • With protective conductor foot
Technical Specifications

Product properties

Number of Connections6
Number of rows2

Insulation characteristics

Overvoltage categoryIII
Degree of pollution3

Electrical properties

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

Connection data

Grounding footYes
Number of connections per level3
Nominal cross section2.5 mm²

1st and 2nd level

NotePlease observe the current carrying capacity of the DIN rails.
Stripping length10 mm
Internal cylindrical gageA3
Connection in acc. with standardIEC 60947-7-1
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 Current26 A (with 4 mm² conductor cross section)
Nominal Voltage500 V
Nominal cross section2.5 mm²

Dimensions

Width5.2 mm
End cover width2.2 mm

Material specifications

Colorgray
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))125 °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)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

Surge voltage test

Test voltage setpoint7.3 kV
ResultTest passed
Short-time withstand current 2.5 mm²0.3 kA
Short-time withstand current 4 mm²0.48 kA
ResultTest passed

Power-frequency withstand voltage

Test voltage setpoint1.89 kV
ResultTest passed

Mechanical data

Open side panelYes

Mechanical strength

ResultTest passed

Attachment on the carrier

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

Test for conductor damage and slackening

Rotation speed10 rpm
Revolutions135
Conductor cross section/weight0.08 mm² / 0.1 kg
Conductor cross section/weight2.5 mm² / 0.7 kg
Conductor cross section/weight4 mm² / 0.9 kg
ResultTest passed

Aging

Temperature cycles192
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 ... 105 °C (max. short-term operating temperature RTI Elec.)
Ambient temperature (storage/transport)-25 °C ... 60 °C (for a short time, not exceeding 24 h, -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 Regulations

Connection in acc. with standardIEC 60947-7-1

Mounting

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

Why Proax for Phoenix Contact STTB 2,5-TWIN-PE/L?

Proax is an authorized distributor of Phoenix Contact STTB 2,5-TWIN-PE/L and one of Phoenix Contact's largest distributors in North America. Our highly skilled in-house technical team is ready to assist with any technical needs.

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Additional Information

Alternate NamesSTTB25TWINPEL
Pack Size50
Recommended
Sold in quantities of 50

Available for order

Phoenix Contact Availability