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Phoenix Contact 3044788
AllConnectorsTerminal blocksScrew connection
Phoenix ContactOfficial Distributor

By Phoenix Contact

SKU
MPN
UTTB 4-L/N
Weight
0.02 kg
Series UTTB

UTTB 4-L/N - Feed-through terminal block

Feed-through terminal block, nom. voltage: 800 V, nominal current: 30 A, connection method: Screw connection, Rated cross section: 4 mm2, cross section: 0.14 mm2 - 6 mm2, mounting type: NS 35/7,5, NS 35/15, color: gray

Technical Specifications

Product properties

Number of Connections4
Number of rows2

Electrical properties

Maximum power dissipation for nominal condition1.02 W

Connection data

Number of connections per level2
Nominal cross section4 mm²

Level 1+2

Screw threadM3
Tightening torque0.6 ... 0.8 Nm
Stripping length9 mm
Internal cylindrical gageA4
Connection in acc. with standardIEC 60947-7-1
Conductor cross section rigid0.14 mm² ... 6 mm²
Cross section AWG26 ... 10 (converted acc. to IEC)
Conductor cross section flexible0.14 mm² ... 6 mm²
Conductor cross section, flexible [AWG]26 ... 10 (converted acc. to IEC)
Conductor cross-section flexible (ferrule without plastic sleeve)0.14 mm² ... 4 mm²
Flexible conductor cross section (ferrule with plastic sleeve)0.14 mm² ... 4 mm²
2 conductors with same cross section, solid0.14 mm² ... 1.5 mm²
2 conductors with same cross section, flexible0.14 mm² ... 1.5 mm²
2 conductors with same cross section, flexible, with ferrule without plastic sleeve0.14 mm² ... 1.5 mm²
2 conductors with the same cross section, flexible, with TWIN ferrule with plastic sleeve0.5 mm² ... 2.5 mm²
Nominal Current30 A
Maximum Load Current36 A (with 6 mm² conductor cross section)
Nominal Voltage800 V
Nominal cross section4 mm²

Rated data (ATEX/IECEx)

Identification II 2 GD  Ex eb IIC Gb
Operating temperature range-60 °C ... 110 °C
Ex-certified accessories3047293 D-UTTB 2,5/4
Ex-certified accessories3047303 DP-UTTB 2,5/4
Ex-certified accessories3047316 ATP-UTTB 2,5/4
Ex-certified accessories1212587 SF-SL 0,6X3,5-100 S-VDE
Ex-certified accessories3022276 CLIPFIX 35-5
Ex-certified accessories3022218 CLIPFIX 35
List of bridgesPlug-in bridge / FBS 2-6 / 3030336
List of bridgesPlug-in bridge / FBS 3-6 / 3030242
List of bridgesPlug-in bridge / FBS 4-6 / 3030255
List of bridgesPlug-in bridge / FBS 5-6 / 3030349
List of bridgesPlug-in bridge / FBS 10-6 / 3030271
List of bridgesPlug-in bridge / FBS 20-6 / 3030365
Bridge data25.5 A / 4 mm²
Ex temperature increase40 K (28.5 A / 4 mm²)
Rated voltage440 V
for bridging with bridge440 V
- At bridging between non-adjacent terminal blocks275 V
- At bridging between non-adjacent terminal blocks via PE terminal block275 V
- At cut-to-length bridging with cover220 V
- At cut-to-length bridging with partition plate176 V
Rated Insulation Voltage400 V
Output(Permanent)

Ex level General

Rated current25.5 A
Maximum Load Current31.5 A

Ex connection data General

Torque range0.6 Nm ... 0.8 Nm
Nominal cross section4 mm²
Rated cross section AWG12
Connection capacity rigid0.14 mm² ... 6 mm²
Connection capacity AWG26 ... 10
Connection capacity flexible0.14 mm² ... 4 mm²
Connection capacity AWG26 ... 12
2 conductors with same cross section, solid0.14 mm² ... 1.5 mm²
2 conductors with the same cross-section AWG rigid26 ... 16
2 conductors with same cross section, stranded0.14 mm² ... 1.5 mm²
2 conductors with the same cross-section AWG flexible26 ... 16
Output(Permanent)

Ex level Level 1

Contact resistance0.35 mΩ
Output(Permanent)

Ex level Level 2

Contact resistance0.2 mΩ

Dimensions

Width6.2 mm
End cover width2.2 mm
Height69.9 mm
Depth on NS 35/7,565 mm
Depth on NS 35/1572.5 mm

Material specifications

Colorgray
Flammability rating according to UL 94V0
Insulating materialPA
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

Mechanical data

Open side panelYes

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

Mounting

Mounting TypeNS 35/7,5
Mounting TypeNS 35/15
Accessories
  • Phoenix Contact3047293
    3047293
    3047293 - End cover, depth: 57.5 mm, width: 2.2 mm, height: 69.9 mm, color: gray
  • Phoenix Contact3047303
    3047303
    3047303 - Spacer plate, depth: 33 mm, width: 2.6 mm, height: 69.9 mm, color: gray
  • Phoenix Contact3047316
    3047316
    3047316 - Partition plate, depth: 70 mm, width: 2.2 mm, height: 74.3 mm, color: gray
  • Phoenix Contact1212587
    1212587
    1212587 - Actuation tool, for ST terminal blocks, VDE insulated, with slimmer insulation integrated in the blade, also suitable for use as a bladed screwdriver, size: 0.6 x 3.5 x 100 mm, 2-component grip, with non-slip grip
  • Phoenix Contact0811228
    0811228
    0811228 - Marker pen without ink cartridge, for manual labeling of markers, labeling extremely wipe-proof, line thickness 0.35 mm
  • Phoenix Contact3038736
    3038736
    3038736 - Test plug, number of positions: 1, color: red
  • Phoenix Contact3047332
    3047332
    3047332 - Warning sign for UT terminal blocks
  • Phoenix Contact3033715
    3033715
    3033715 - Plug-in bridge, pitch: 6.2 mm, number of positions: 2, color: red
  • Phoenix Contact3001594
    3001594
    3001594 - Plug-in bridge, pitch: 6.2 mm, number of positions: 3, color: red
  • Phoenix Contact3001595
    3001595
    3001595 - Plug-in bridge, pitch: 6.2 mm, number of positions: 4, color: red
  • Phoenix Contact3001596
    3001596
    3001596 - Plug-in bridge, pitch: 6.2 mm, number of positions: 5, color: red
  • Phoenix Contact3033716
    3033716
    3033716 - Plug-in bridge, pitch: 6.2 mm, number of positions: 10, color: red
  • Phoenix Contact3033812
    3033812
    3033812 - Short-circuit connector, pitch: 6.2 mm, number of positions: 2, color: red
  • Phoenix Contact0801733
    0801733
    0801733 - DIN rail perforated, Pack of 25 (50 m), acc. to EN 60715, material: Steel, galvanized, passivated with a thick layer, Standard profile, color: silver
  • Phoenix Contact0801681
    0801681
    0801681 - DIN rail, unperforated, Pack of 25 (50 m), acc. to EN 60715, material: Steel, galvanized, passivated with a thick layer, Standard profile, color: silver
  • Phoenix Contact1204119
    1204119
    1204119 - DIN rail perforated, Pack of 25 (50 m), acc. to EN 60715, material: Steel, Galvanized, white passivated, Standard profile, color: silver
  • Phoenix Contact1204122
    1204122
    1204122 - DIN rail, unperforated, Pack of 10 (20 m), acc. to EN 60715, material: Steel, Galvanized, white passivated, Standard profile, color: silver
  • Phoenix Contact0801704
    0801704
    0801704 - DIN rail, unperforated, Pack of 25 (50 m), acc. to EN 60715, material: Aluminum, uncoated, Standard profile, color: silver
  • Phoenix Contact1206421
    1206421
    1206421 - DIN rail perforated, Pack of 25 (50 m), acc. to EN 60715, material: Steel, galvanized, Standard profile, color: silver
  • Phoenix Contact1206434
    1206434
    1206434 - DIN rail, unperforated, Pack of 25 (50 m), acc. to EN 60715, material: Steel, galvanized, Standard profile, color: silver
  • Phoenix Contact0801762
    0801762
    0801762 - DIN rail, unperforated, Pack of 10 (20 m), acc. to EN 60715, material: Copper, uncoated, Standard profile, color: copper-colored
  • Phoenix Contact1206560
    1206560
    1206560 - DIN rail end piece, for DIN rail NS 35/7.5
  • Phoenix Contact1201730
    1201730
    1201730 - DIN rail perforated, Pack of 25 (50 m), similar to EN 60715, material: Steel, galvanized, passivated with a thick layer, Standard profile, color: silver
  • Phoenix Contact1201714
    1201714
    1201714 - DIN rail, unperforated, Pack of 25 (50 m), similar to EN 60715, material: Steel, galvanized, passivated with a thick layer, Standard profile, color: silver
  • Phoenix Contact0806602
    0806602
    0806602 - DIN rail perforated, Pack of 25 (50 m), similar to EN 60715, material: Steel, Galvanized, white passivated, Standard profile, color: white
  • Phoenix Contact1204135
    1204135
    1204135 - DIN rail, unperforated, Pack of 10 (20 m), similar to EN 60715, material: Steel, Galvanized, white passivated, Standard profile, color: silver
  • Phoenix Contact1201756
    1201756
    1201756 - DIN rail, unperforated, similar to EN 60715, material: Aluminum, uncoated, Standard profile, color: silver
  • Phoenix Contact1206599
    1206599
    1206599 - DIN rail perforated, Pack of 25 (50 m), similar to EN 60715, material: Steel, galvanized, Standard profile, color: silver
  • Phoenix Contact1206586
    1206586
    1206586 - DIN rail, unperforated, Pack of 25 (50 m), similar to EN 60715, material: Steel, galvanized, Standard profile, color: silver
  • Phoenix Contact1201895
    1201895
    1201895 - DIN rail, unperforated, Pack of 10 (20 m), similar to EN 60715, material: Copper, uncoated, Standard profile, color: copper-colored
  • Phoenix Contact1206573
    1206573
    1206573 - DIN rail end piece, for DIN rail NS 35/15
  • Phoenix Contact1201798
    1201798
    1201798 - DIN rail, unperforated, Pack of 10 (20 m), acc. to EN 60715, material: Steel, galvanized, passivated with a thick layer, Standard profile 2.3 mm, color: silver
  • Phoenix Contact1051003
    1051003
    1051003 -
  • Phoenix Contact0824992
    0824992
    Zack marker strip - ZB 6 CUS
  • Phoenix Contact1051016
    1051016
    1051016 -
  • Phoenix Contact1051032
    1051032
    1051032 -
  • Phoenix Contact1051414
    1051414
    1051414 -
  • Phoenix Contact1051430
    1051430
    1051430 -
  • Phoenix Contact0818085
    0818085
    0818085 -
  • Phoenix Contact0824589
    0824589
    Marker for terminal blocks - UC-TM 6 CUS
  • Phoenix Contact0828736
    0828736
    0828736 -
  • Phoenix Contact0201744
    0201744
    0201744 - Test plug, with solder connection up to 1 mm2 conductor cross section, number of positions: 1, color: gray
  • Phoenix Contact0201663
    0201663
    0201663 - Insulating sleeve, color: white
  • Phoenix Contact0201676
    0201676
    0201676 - Insulating sleeve, color: red
  • Phoenix Contact0201689
    0201689
    0201689 - Insulating sleeve, color: blue
  • Phoenix Contact0201692
    0201692
    0201692 - Insulating sleeve, color: yellow
  • Phoenix Contact0201702
    0201702
    0201702 - Insulating sleeve, color: green
  • Phoenix Contact0201728
    0201728
    0201728 - Insulating sleeve, color: gray
  • Phoenix Contact0201731
    0201731
    0201731 - Insulating sleeve, color: black
  • Phoenix Contact3035975
    3035975
    3035975 - 4 mm test adapter, for terminal blocks with 5.2 mm and 6.2 mm pitch
  • Phoenix Contact3035974
    3035974
    3035974 - 4 mm test adapter, for terminal blocks with 5.2 mm and 6.2 mm pitch
  • Phoenix Contact3035977
    3035977
    3035977 - 4 mm test adapter, for terminal blocks with 5.2 mm and 6.2 mm pitch
  • Phoenix Contact3035976
    3035976
    3035976 - 4 mm test adapter, for terminal blocks with 5.2 mm and 6.2 mm pitch
  • Phoenix Contact3035978
    3035978
    3035978 - 4 mm test adapter, for terminal blocks with 5.2 mm and 6.2 mm pitch
  • Phoenix Contact3035980
    3035980
    3035980 - 4 mm test adapter, for terminal blocks with 5.2 mm and 6.2 mm pitch
  • Phoenix Contact3035982
    3035982
    3035982 - 4 mm test adapter, for terminal blocks with 5.2 mm and 6.2 mm pitch
  • Phoenix Contact3035979
    3035979
    3035979 - 4 mm test adapter, for terminal blocks with 5.2 mm and 6.2 mm pitch
  • Phoenix Contact3035981
    3035981
    3035981 - 4 mm test adapter, for terminal blocks with 5.2 mm and 6.2 mm pitch
  • Phoenix Contact3035983
    3035983
    3035983 - 4 mm test adapter, for terminal blocks with 5.2 mm and 6.2 mm pitch
  • Phoenix Contact3030996
    3030996
    3030996 - Test plug, Modular test plug, number of positions: 1, color: red
  • Phoenix Contact3038736
    3038736
    3038736 - Test plug, number of positions: 1, color: red
  • Phoenix Contact3022218
    3022218
    3022218 - Quick mounting end clamp for NS 35/7,5 DIN rail or NS 35/15 DIN rail, with marking option, width: 9.5 mm, color: gray
  • Phoenix Contact3022276
    3022276
    3022276 - Quick mounting end clamp for NS 35/7,5 DIN rail or NS 35/15 DIN rail, with marking option, with parking option for FBS...5, FBS...6, KSS 5, KSS 6, width: 5.15 mm, color: gray
  • Phoenix Contact0800886
    0800886
    0800886 - End clamp, width: 9.5 mm, color: gray

Why Proax for Phoenix Contact 3044788?

Proax is an authorized distributor of Phoenix Contact 3044788 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.

Have a question in mind? to help you get the right product as quickly as possible for your project. We're always here to help!

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60+ Years Experience
Additional Information

Pack Size50
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  • Phoenix Contact3044762
    3044762
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    3076015
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  • Phoenix Contact3046773
    3046773
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  • Phoenix Contact3044733
    3044733
    3044733 - Double-level terminal block, with equipotential bonder, nom. voltage: 800 V, nominal current: 30 A, connection method: Screw connection, Rated cross section: 4 mm2, cross section: 0.14 mm2 - 6 mm2, mounting type: NS 35/7,5, NS 35/15, color: gray
  • Phoenix Contact3044720
    3044720
    3044720 - Disconnect terminal block, Current and voltage are determined by the plug used., nom. voltage: 500 V, nominal current: 30 A, connection method: Screw connection, Rated cross section: 4 mm2, cross section: 0.14 mm2 - 6 mm2, Disconnect zone, mounting: NS 35/7,5, NS 35/15, color: gray
  • Phoenix Contact3046809
    3046809
    3046809 - Component terminal block, with integrated 1N4007 diode, nom. voltage: 800 V, nominal current: 0.5 A, connection method: Screw connection, Rated cross section: 4 mm2, cross section: 0.14 mm2 - 6 mm2, mounting type: NS 35/7,5, NS 35/15, color: gray
  • Phoenix Contact3059265
    3059265
    3059265 - Feed-through terminal block, with equipotential bonder, nom. voltage: 800 V, nominal current: 30 A, connection method: Screw connection, Rated cross section: 4 mm2, cross section: 0.14 mm2 - 6 mm2, mounting type: NS 35/7,5, NS 35/15, color: blue
  • Phoenix Contact3044801
    3044801
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    3074444
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    3044815
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  • Phoenix Contact3046786
    3046786
    3046786 - Double-level terminal block with screw connection, cross section: 0.14 mm2 - 6 mm2, AWG: 26 - 10, width: 6.2 mm, color: red
  • Phoenix Contact3000610
    3000610
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    3044665
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Sold in quantities of 50

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