ST 2,5 BU - Feed-through terminal block - 3031225

Product details

Product type	Feed-through terminal block
Product family	ST
Area of application	Railway industry
	Machine building
	Plant engineering
	Process industry
Number of connections	2
Number of rows	1
Potentials	1
Insulation characteristics
Overvoltage category	III
Degree of pollution	3

Rated surge voltage	8 kV
Maximum power dissipation for nominal condition	0.77 W

Number of connections per level	2
Nominal cross section	2.5 mm²
Stripping length	8 mm ... 10 mm
Internal cylindrical gage	A3
Connection in acc. with standard	IEC 60947-7-1
Conductor cross section rigid	0.08 mm² ... 4 mm²
Cross section AWG	28 ... 12 (converted acc. to IEC)
Conductor cross section flexible	0.08 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 sleeve	0.5 mm²
Nominal current	24 A (at 2.5 mm²)
Maximum load current	31 A (with 4 mm² conductor cross section)
Nominal voltage	800 V
Nominal cross section	2.5 mm²

Rated data (ATEX/IECEx)
Identification	 II 2 GD Ex eb IIC Gb
Operating temperature range	-60 °C ... 85 °C
Ex-certified accessories	3030417 D-ST 2,5
	3030721 ATP-ST 4
	1204517 SZF 1-0,6X3,5
	3022276 CLIPFIX 35-5
	3022218 CLIPFIX 35
List of bridges	Plug-in bridge / FBS 2-5 / 3030161
	Plug-in bridge / FBS 3-5 / 3030174
	Plug-in bridge / FBS 4-5 / 3030187
	Plug-in bridge / FBS 5-5 / 3030190
	Plug-in bridge / FBS 10-5 / 3030213
	Plug-in bridge / FBS 20-5 / 3030226
Bridge data	23 A (2.5 mm²)
Ex temperature increase	40 K (22.8 A / 2.5 mm²)
for bridging with bridge	550 V
- At bridging between non-adjacent terminal blocks	352 V
- At bridging between non-adjacent terminal blocks via PE terminal block	352 V
- At cut-to-length bridging with cover	220 V
- At cut-to-length bridging with partition plate	275 V
Rated insulation voltage	500 V
output	(Permanent)
Ex level General
Rated voltage	550 V
Rated current	20.5 A
Maximum load current	26.5 A
Contact resistance	1.04 mΩ
Ex connection data General
Nominal cross section	2.5 mm²
Rated cross section AWG	14
Connection capacity rigid	0.08 mm² ... 4 mm²
Connection capacity AWG	28 ... 12
Connection capacity flexible	0.08 mm² ... 2.5 mm²
Connection capacity AWG	28 ... 14

Width	5.2 mm
End cover width	2.2 mm
Height	48.5 mm
Depth on NS 35/7,5	36.5 mm
Depth on NS 35/15	44 mm

Color	blue (RAL 5015)
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

Surge voltage test
Test voltage setpoint	9.8 kV
Result	Test passed
Temperature-rise test
Requirement temperature-rise test	Increase in temperature ≤ 45 K
Result	Test passed
Short-time withstand current 2.5 mm²	0.3 kA
Result	Test passed
Power-frequency withstand voltage
Test voltage setpoint	2 kV
Result	Test passed

Mechanical data
Open side panel	Yes

Mechanical strength
Result	Test passed
Attachment on the carrier
DIN rail/fixing support	NS 35
Result	Test passed
Test for conductor damage and slackening
Rotation speed	9 rpm
Revolutions	135
Conductor cross section/weight	0.14 mm² / 0.2 kg
	2.5 mm² / 0.7 kg
	4 mm² / 0.9 kg
Result	Test passed

Aging
Temperature cycles	192
Result	Test passed
Needle-flame test
Time of exposure	30 s
Result	Test passed
Oscillation/broadband noise
Specification	DIN EN 50155 (VDE 0115-200):2018-05
Spectrum	Long life test category 2, bogie-mounted
Frequency	f₁ = 5 Hz to f₂ = 250 Hz
ASD level	6.12 (m/s²)²/Hz
Acceleration	3.12g
Test duration per axis	5 h
Test directions	X-, Y- and Z-axis
Result	Test passed
Shocks
Specification	DIN EN 50155 (VDE 0115-200):2008-03
Pulse shape	Half-sine
Acceleration	5g
Shock duration	30 ms
Number of shocks per direction	3
Test directions	X-, Y- and Z-axis (pos. and neg.)
Result	Test 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, 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 (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

Commercial data

Item number	3031225
Packing unit	50 pc
Minimum order quantity	50 pc
Sales key	BE2111
Product key	BE2111
Catalog page	Page 211 (C-1-2019)
GTIN	4017918186739
Weight per piece (including packing)	6.129 g
Weight per piece (excluding packing)	5.6 g
Country of origin	CN

Classifications

Approvals

Approval Specification Data
	Nominal voltage U_N	Nominal current I_N	Cross section AWG
Use group B
	600 V	20 A	28 - 12
Use group C
	600 V	20 A	28 - 12

Approval Specification Data
	Nominal voltage U_N	Nominal current I_N	Cross section AWG	Cross section mm²
	800 V	24 A		0.2 - 2.5

Approval Specification Data
	Nominal voltage U_N	Nominal current I_N	Cross section AWG	Cross section mm²
	800 V	24 A		0.2 - 2.5

Approval Specification Data
	Nominal voltage U_N	Nominal current I_N	Cross section AWG
Use group B
	600 V	20 A	28 - 12
Use group C
	600 V	20 A	28 - 12

Approval Specification Data
	Nominal voltage U_N	Nominal current I_N	Cross section AWG	Cross section mm²
Only flexible conductors	550 V	20.5 A		0.08 - 2.5
Only rigid conductors	550 V	26.5 A		0.08 - 4

Approval Specification Data
	Nominal voltage U_N	Nominal current I_N	Cross section AWG	Cross section mm²
Only flexible conductors	550 V	20.5 A		0.08 - 2.5
Only rigid conductors	550 V	26.5 A		0.08 - 4

Environmental product compliance

EU RoHS
Fulfills EU RoHS substance requirements	Yes (No exemptions)
China RoHS
Environment friendly use period (EFUP)	EFUP-E No hazardous substances above the limits
EU REACH SVHC
REACH candidate substance (CAS No.)	No substance above 0.1 wt%
EF3.0 Climate Change
CO2e kg	0.042 kg CO2e

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ST 2,5 BU - Feed-through terminal block

3031225

Product details

ECLASS

ETIM

UNSPSC

CSA

IECEE CB Scheme

KR

NK

VDE approval of drawings

cULus Recognized

ATEX

IECEx

CCC

UKCA-EX

EAC Ex

Compatible products

Your advantages

Automate

Connect

Mark, assemble, and install

Supply, charge, and protect

Switch, Measure and Monitor

ST 2,5 BU - Feed-through terminal block 3031225

Product details

ECLASS

ETIM

UNSPSC

Compatible products

FBS 2-5 - Plug-in bridge 3030161

FBS 3-5 - Plug-in bridge 3030174

FBS 4-5 - Plug-in bridge 3030187

FBS 5-5 - Plug-in bridge 3030190

FBS 10-5 - Plug-in bridge 3030213

FBS 20-5 - Plug-in bridge 3030226

FBSR 2-5 - Plug-in bridge 3033702

FBSR 3-5 - Plug-in bridge 3001591

FBSR 4-5 - Plug-in bridge 3001592

FBSR 5-5 - Plug-in bridge 3001593

FBSR 10-5 - Plug-in bridge 3033710

FBS 2-5 BU - Plug-in bridge 3036877

FBS 3-5 BU - Plug-in bridge 3036880

FBS 4-5 BU - Plug-in bridge 3036893

FBS 5-5 BU - Plug-in bridge 3036903

FBS 10-5 BU - Plug-in bridge 3036916

FBS 20-5 BU - Plug-in bridge 3036929

FBS 50-5 BU - Plug-in bridge 3032114

RB ST (2,5/4)-1,5/S - Reducing bridge 3214356

RB ST 6-(2,5/4) - Reducing bridge 3030860

RB ST 10-(2,5/4) - Reducing bridge 3030873

RB ST 16-(2,5/4) - Reducing bridge 3030886

RB ST 35-(2,5/4) - Reducing bridge 3030899

RB ST (2,5/4)-1,5 - Reducing bridge 3038943

RB UT 6-ST(2,5/4) - Reducing bridge 3047264

RB UT 35-ST(2,5/4) - Reducing bridge 3047280

RB UT 10-ST(2,5/4) - Reducing bridge 3047086

RB UT 16-ST(2,5/4) - Reducing bridge 3047099

RB PTPOWER 35-ST(2,5/4) - Reducing bridge 3030900

D-ST 2,5 - End cover 3030417

RPS - Reducing plug 0201647

ATP-ST 4 - Partition plate 3030721

WST 2,5 - Warning cover 3030941

D-ST 2,5-0,8 OG - End cover 3030511

CEC 2,5 - Filler plug 3062757

P-CO 2-5 R47K - Component connector 3032447

LPO 2,5/E - Pick-off plug 3270516

LPO 2,5 - Pick-off plug 3270517

LPS-5/E - Service connector 3270520

LPS-5 - Service connector 3270521

D-ST 2,5 OG - End cover 3032033

D-ST 2,5 BU - End cover 3032282

NS 35/ 7,5 PERF 2000MM - DIN rail perforated 0801733

NS 35/ 7,5 UNPERF 2000MM - DIN rail, unperforated 0801681

NS 35/ 7,5 WH PERF 2000MM - DIN rail perforated 1204119

NS 35/ 7,5 WH UNPERF 2000MM-VPE 10 - DIN rail, unperforated 1204122

NS 35/ 7,5 AL UNPERF 2000MM - DIN rail, unperforated 0801704

NS 35/ 7,5 ZN PERF 2000MM - DIN rail perforated 1206421

NS 35/ 7,5 ZN UNPERF 2000MM - DIN rail, unperforated 1206434

NS 35/ 7,5 CU UNPERF 2000MM-VPE 10 - DIN rail, unperforated 0801762

NS 35/ 7,5 CAP - End cap 1206560

NS 35/15 PERF 2000MM - DIN rail perforated 1201730

NS 35/15 UNPERF 2000MM - DIN rail, unperforated 1201714

NS 35/15 WH PERF 2000MM - DIN rail perforated 0806602

NS 35/15 WH UNPERF 2000MM-VPE 10 - DIN rail, unperforated 1204135

NS 35/15 AL UNPERF 2000MM - DIN rail, unperforated 1201756

NS 35/15 ZN PERF 2000MM - DIN rail perforated 1206599

NS 35/15 ZN UNPERF 2000MM - DIN rail, unperforated 1206586

NS 35/15 CU UNPERF 2000MM-VPE 10 - DIN rail, unperforated 1201895

NS 35/15 CAP - End cap 1206573

NS 35/15-2,3 UNPERF 2000MM-VPE 10 - DIN rail, unperforated 1201798

ZB 5 :UNBEDRUCKT - Zack marker strip 1050004

ZB 5 CUS - Zack marker strip 0824962

ZB 5,LGS:L1-N,PE - Zack marker strip 1050415

UC-TM 5 - Marker for terminal blocks 0818108

UC-TM 5 CUS - Marker for terminal blocks 0824581

UCT-TM 5 - Marker for terminal blocks 0828734

UCT-TM 5 CUS - Marker for terminal blocks 0829595

GBS 5-25X12 - Group marker label for terminal marking 0810588

ST 2,5 BU - Feed-through terminal block

3031225