Terminal Blocks ❯ Terminal Blocks
3031270
Phoenix Contact

3031270

Feed-through/thru terminal block with 2-decks / levels - for using in Ex zone - Phoenix Contact (CLIPLINE series / ST series) - STTB 2.5 - Gray - 2 feed-through poles (2P) / 4-wires (2 push-in + 2 push-in) - for 0.08mm2...4mm2 / for #28AWG...#12AWG - Rated current 22A (IEC; with 2.5mm2 conductor) - DIN rail mounting - 5.2mm width
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Product Details
Primary brand Phoenix Contact
Main function Terminal
Product series / family name CLIPLINE series
Sub-range name ST series
Type Terminal = feed-through
Decks = 2
Option = for using in Ex zone
Functions Feed-through/thru terminal block
Design 2-decks / levels
for using in Ex zone
Poles 2 feed-through poles (2P)
Rated current 20A < In ≤ 25A
Rated current 26A (max.; with 4mm2 conductor)
23.5A (max.; Ex rating)
22A (IEC; with 2.5mm2 conductor)
20A (UL/cUL)
20A (CSA)
19.5A (Ex rating; with 2.5mm2 conductor)
Color Gray
Color Gray
Connection capacity 4-wires (2+2)
Connection capacity 4-wires (2 push-in + 2 push-in)
Rated operating voltage (Ue) (IEC) 500V
(UL) 600V
(CSA) 600V
(Ex) 440V
Rated impulse voltage (Uimp) 6kV
Connection type (electrical) Terminals (Spring)
Connection type spring-cage connection
Cross-section (mm2) 0.08mm2
0.1mm2
0.14mm2
0.2mm2
0.25mm2
0.34mm2
0.5mm2
0.75mm2
1mm2
1.5mm2
2.5mm2
4mm2
Cross-section for 0.08mm2...4mm2
for #28AWG...#12AWG
Cross-section (AWG) 28 AWG
27 AWG
26 AWG
25 AWG
24 AWG
23 AWG
22 AWG
21 AWG
20 AWG
19 AWG
18 AWG
17 AWG
16 AWG
15 AWG
14 AWG
13 AWG
12 AWG
Poles 2P
Net Width (mm) 5.2mm
Mounting mode DIN rail
Mounting mode DIN rail mounting
Dimensions H47.5mm x W5.2mm x D67.5mm
Dimensions (mm) W5.2mm
Order code / Manufacturer SKU 3031270
Manufacturer product status Commercialized
Compliant with standard(s) CSA
UL
EAC
VDE
BV
GL
DNV
LR
ClassNK
CB scheme
ATEX
IECEx KEM 06.0051U
KR
KEMA 00ATEX2052U
Benefits Space-saving design
ST spring-cage terminal blocks are ideal for control systems where limited space is available.

Maximum connection space
Miniature spring-cage terminal blocks offer a quick means of wiring rigid and flexible conductors even for conductors with the nominal cross section and pre-assembled ferrule.

Large-surface labeling
Large and clear marking of the terminal points is essential for reliable and quick installation.
Each terminal point can be labeled separately.
Location of origin Germany
Product title Feed-through/thru terminal block - Phoenix Contact (CLIPLINE series / ST series)