Phoenix Contact UTTB  4 WH

Selling Points

  • 1Implement all distribution tasks quickly with two function shafts per level.
  • 2Secure and reliable connection method for conductors up to 6 mm².
  • 3Supports up to 30A nominal current and 36A maximum load current.
  • 4Designed and tested for railway applications, ensuring durability and safety.
  • 5Each terminal point supports large-surface labeling for clear overview and organization.
Product Details
UTTB 4 WH
Phoenix Contact

Technical Specifications

Detailed engineering parameters based on manufacturer documentation

ParameterValueParameterValue
Product 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
Article revision
03
Overvoltage category
III
Degree of pollution
3
Rated surge voltage
8 kV
Maximum power dissipation for nominal condition
1.02 W
Number of connections per level
2
Nominal cross section
4 mm²
Screw thread
M3
Tightening torque
0.6 ... 0.8 Nm
Stripping length
9 mm
Internal cylindrical gage
A4
Connection in acc. with standard
IEC 60947-7-1
Conductor cross section rigid
0.14 mm² ... 6 mm²
Cross section AWG
26 ... 10 (converted acc. to IEC)
Conductor cross section flexible
0.14 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, solid
0.14 mm² ... 1.5 mm²
2 conductors with same cross section, flexible
0.14 mm² ... 1.5 mm²
2 conductors with same cross section, flexible, with ferrule without plastic sleeve
0.14 mm² ... 1.5 mm²
2 conductors with the same cross section, flexible, with TWIN ferrule with plastic sleeve
0.5 mm² ... 2.5 mm²
Nominal current
30 A
Maximum load current
36 A (with 6 mm² conductor cross section)
Nominal voltage
800 V
Nominal cross section
4 mm²
Identification
 II 2 GD  Ex eb IIC Gb
Operating temperature range
-60 °C ... 110 °C
Ex-certified accessories
3047293 D-UTTB 2,5/4 3047303 DP-UTTB 2,5/4 3047316 ATP-UTTB 2,5/4 1212587 SF-SL 0,6X3,5-100 S-VDE 3022276 CLIPFIX 35-5 3022218 CLIPFIX 35
List of bridges
Plug-in bridge / FBS 2-6 / 3030336 Plug-in bridge / FBS 3-6 / 3030242 Plug-in bridge / FBS 4-6 / 3030255 Plug-in bridge / FBS 5-6 / 3030349 Plug-in bridge / FBS 10-6 / 3030271 Plug-in bridge / FBS 20-6 / 3030365
Bridge data
25.5 A / 4 mm²
Ex temperature increase
40 K (28.5 A / 4 mm²)
Rated voltage
440 V
for bridging with bridge
440 V
- At bridging between non-adjacent terminal blocks
275 V
- At bridging between non-adjacent terminal blocks via PE terminal block
275 V
- At cut-to-length bridging with cover
220 V
- At cut-to-length bridging with partition plate
176 V
Rated insulation voltage
400 V
output
(Permanent)
Rated current
25.5 A
Maximum load current
31.5 A
Torque range
0.6 Nm ... 0.8 Nm
Nominal cross section
4 mm²
Rated cross section AWG
12
Connection capacity rigid
0.14 mm² ... 6 mm²
Connection capacity AWG
26 ... 10
Connection capacity flexible
0.14 mm² ... 4 mm²
Connection capacity AWG
26 ... 12
2 conductors with same cross section, solid
0.14 mm² ... 1.5 mm²
2 conductors with the same cross-section AWG rigid
26 ... 16
2 conductors with same cross section, stranded
0.14 mm² ... 1.5 mm²
2 conductors with the same cross-section AWG flexible
26 ... 16
output
(Permanent)
Contact resistance
0.35 mΩ
output
(Permanent)
Contact resistance
0.2 mΩ
Width
6.2 mm
End cover width
2.2 mm
Height
69.9 mm
Depth on NS 35/7,5
65 mm
Depth on NS 35/15
72.5 mm
Color
white (RAL 9010)
Flammability rating according to UL 94
V0
Insulating material group
I
Insulating material
PA
Static insulating material application in cold
-60 °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
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
Open side panel
Yes
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 %
Connection in acc. with standard
IEC 60947-7-1
Mounting type
NS 35/7,5 NS 35/15

Specifications may be subject to change without notice