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3033139

Official Distributor

By Phoenix Contact

SKU
PHX3033139
MPN
STU 10/ 4X2,5
Weight
0.021 kg
Series STU

STU 10/ 4X2,5 - Potential collective terminal

Potential collective terminal, nom. voltage: 800 V, nominal current: 55 A, connection method: Screw connection, Rated cross section: 10 mm2, cross section: 0.5 mm2 - 16 mm2, connection method: Spring-cage connection, Rated cross section: 2.5 mm2, cross section: 0.08 mm2 - 4 mm2, mounting: NS 35/7,5, NS 35/15, color: gray

  • The STU 10/4x2,5 spring-cage hybrid terminal block is a space-saving potential distributor that distributes a 10 mm² supply line to four 2.5 mm² connections
  • Supplied using a 10 mm² screw connection
  • The system-internal distribution is via four spring-cage connections with a nominal cross section of 2.5 mm²
  • The double bridge shaft supports further potential distributions
  • Can be consistently bridged to standard terminal blocks in the ST spring-cage terminal block series
Technical Specifications

Product properties

Number of Connections5
Number of rows1
Potentials1

Insulation characteristics

Overvoltage categoryIII
Degree of pollution3

Electrical properties

Rated surge voltage8 kV
Maximum power dissipation for nominal condition1.82 W

Connection data

Type of additional hybrid connectionUT 10
Number of connections per level5
Nominal cross section10 mm²
Screw threadM4
Tightening torque1.5 ... 1.8 Nm
Stripping length8 mm ... 10 mm
Internal cylindrical gageA6
Connection in acc. with standardIEC 60947-7-1
Conductor cross section rigid0.5 mm² ... 16 mm²
Cross section AWG20 ... 8 (converted acc. to IEC)
Conductor cross section flexible0.5 mm² ... 16 mm²
Conductor cross section, flexible [AWG]20 ... 6 (converted acc. to IEC)
Conductor cross-section flexible (ferrule without plastic sleeve)0.5 mm² ... 10 mm²
Flexible conductor cross section (ferrule with plastic sleeve)0.5 mm² ... 10 mm²
2 conductors with same cross section, solid0.5 mm² ... 4 mm²
2 conductors with same cross section, flexible0.5 mm² ... 4 mm²
2 conductors with same cross section, flexible, with ferrule without plastic sleeve0.5 mm² ... 2.5 mm²
2 conductors with the same cross section, flexible, with TWIN ferrule with plastic sleeve0.5 mm² ... 6 mm²
Nominal Current55 A
Maximum Load Current57 A
Nominal Voltage800 V
Nominal cross section10 mm²

Level 1 above 1+2

Stripping length8 mm ... 10 mm
Internal cylindrical gageA3
Connection in acc. with standardIEC 60947-7-1
Conductor cross section rigid0.08 mm² ... 4 mm²
Cross section AWG24 ... 10 (converted acc. to IEC)
Conductor cross section flexible0.08 mm² ... 2.5 mm²
Conductor cross section, flexible [AWG]24 ... 12 (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 sleeve0.14 mm² ... 0.5 mm²
Nominal Current24 A
Maximum Load Current24 A
Nominal Voltage800 V
Nominal cross section2.5 mm²

Dimensions

Width10.3 mm
End cover width2.2 mm
Height68 mm
Depth on NS 35/7,548.3 mm
Depth on NS 35/1555.8 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 setpoint9.8 kV
ResultTest passed

Temperature-rise test

Requirement temperature-rise testIncrease in temperature ≤ 45 K
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 setpoint2 kV
ResultTest passed

Mechanical data

Open side panelYes

Mechanical strength

ResultTest passed

Attachment on the carrier

DIN rail/fixing supportNS 35
Test force setpoint5 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
Rotation speed10 rpm
Revolutions135
Conductor cross section/weight0.5 mm² / 0.3 kg
Conductor cross section/weight10 mm² / 2 kg
Conductor cross section/weight16 mm² / 2.9 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 2, bogie-mounted
Frequencyf1 = 5 Hz to f2 = 250 Hz
ASD level6.12 (m/s²)²/Hz
Acceleration3.12g
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
Acceleration30g
Shock duration18 ms
Number of shocks per direction3
Test directionsX-, Y- and Z-axis (pos. and neg.)
ResultTest passed

Ambient conditions

Ambient Temperature (Operation)-60 °C ... 110 °C (Operating temperature range incl. self-heating; for max. short-term operating temperature, see RTI Elec.)
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 60947-7-1
Connection in acc. with standardIEC 60947-7-1

Mounting

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

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