STTB 4 BU - Double-level spring-cage terminal block

3031432

Double-level spring-cage terminal block, nom. voltage: 500 V, nominal current: 30 A, connection method: Spring-cage connection, 1st and 2nd level, Rated cross section: 4 mm², cross section: 0.08 mm² - 6 mm², mounting type: NS 35/7,5, NS 35/15, color: blue

Product details

Product type	Multi-level terminal block
Product family	ST
Area of application	Railway industry
	Machine building
	Plant engineering
	Process industry
Number of connections	4
Number of rows	2
Insulation characteristics
Overvoltage category	III
Degree of pollution	3

Rated surge voltage	6 kV
Maximum power dissipation for nominal condition	1.02 W

Number of connections per level	2
Nominal cross section	4 mm²
1st and 2nd level
Stripping length	8 mm ... 10 mm
Connection in acc. with standard	IEC 60947-7-1
Conductor cross section rigid	0.08 mm² ... 6 mm²
Cross section AWG	28 ... 10 (converted acc. to IEC)
Conductor cross section flexible	0.08 mm² ... 4 mm²
Conductor cross section, flexible [AWG]	28 ... 12 (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 the same cross section, flexible, with TWIN ferrule with plastic sleeve	0.5 mm² ... 1 mm²
Nominal current	30 A
Maximum load current	32 A (with 6 mm² conductor cross section)
Nominal voltage	500 V
Nominal cross section	4 mm²

Rated data (ATEX/IECEx)
Identification	 II 2 GD Ex eb IIC Gb
Operating temperature range	-60 °C ... 85 °C
Ex-certified accessories	3030462 D-STTB 4
	3030747 ATP-STTB 4
	1204517 SZF 1-0,6X3,5
	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	24 A / 4 mm²
Ex temperature increase	40 K (29.5 A/4 mm²)
for bridging with bridge	440 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	220 V
Rated insulation voltage	400 V
output	(Permanent)
Ex level General
Rated voltage	440 V
Rated current	26.5 A
Maximum load current	30 A
Ex connection data General
Nominal cross section	4 mm²
Rated cross section AWG	12
Connection capacity rigid	0.08 mm² ... 6 mm²
Connection capacity AWG	28 ... 10
Connection capacity flexible	0.08 mm² ... 4 mm²
Connection capacity AWG	28 ... 12
output	(Permanent)
Ex level Level 1
Contact resistance	0.94 mΩ
output	(Permanent)
Ex level Level 2
Contact resistance	0.69 mΩ

Width	6.2 mm
End cover width	2.2 mm
Height	83.5 mm
Depth on NS 35/7,5	47.5 mm
Depth on NS 35/15	55 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
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) 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
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 panel	Yes

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	3031432
Packing unit	50 pc
Minimum order quantity	50 pc
Sales key	BE2
Product key	BE2114
Catalog page	Page 230 (C-1-2019)
GTIN	4017918186937
Weight per piece (including packing)	16.551 g
Weight per piece (excluding packing)	16.551 g
Customs tariff number	85369010
Country of origin	DE

Classifications

Approvals

Approval Specification Data
	Nominal voltage U_N	Nominal current I_N	Cross section AWG
Use group B
	300 V	30 A	28 - 10
Use group C
	300 V	30 A	28 - 10

Approval Specification Data
	Nominal voltage U_N	Nominal current I_N	Cross section AWG	Cross section mm²
	500 V	32 A		0.2 - 4

Approval Specification Data
	Nominal voltage U_N	Nominal current I_N	Cross section AWG	Cross section mm²
	500 V	32 A		0.2 - 4

Approval Specification Data
	Nominal voltage U_N	Nominal current I_N	Cross section AWG
Use group B
	300 V	30 A	28 - 10
Use group C
	300 V	30 A	28 - 10

Environmental product compliance

Compatible products

Accessories

Your advantages

Compact design for maximum space savings

Connect the levels using FBS ...-PV bridges

Tested for railway applications

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%

Automate

Connect

Mark, assemble, and install

Supply, charge, and protect

Switch, Measure and Monitor

STTB 4 BU - Double-level spring-cage terminal block

3031432

Product details

ECLASS

ETIM

UNSPSC

CSA

IECEE CB Scheme

KR

NK

VDE approval of drawings

cULus Recognized

DNV

ATEX

IECEx

CCC

UKCA-EX

Compatible products

Your advantages

Automate

Connect

Mark, assemble, and install

Supply, charge, and protect

Switch, Measure and Monitor

STTB 4 BU - Double-level spring-cage terminal block 3031432

Product details

ECLASS

ETIM

UNSPSC

Compatible products

FBS 20-6 - Plug-in bridge 3030365

FBS 10-6 - Plug-in bridge 3030271

FBS 6-6 - Plug-in bridge 1008238

FBS 5-6 - Plug-in bridge 3030349

FBS 4-6 - Plug-in bridge 3030255

FBS 3-6 - Plug-in bridge 3030242

FBS 2-6 - Plug-in bridge 3030336

FBS 50-6 - Plug-in bridge 3032224

FBSR 2-6 - Plug-in bridge 3033715

FBSR 3-6 - Plug-in bridge 3001594

FBSR 4-6 - Plug-in bridge 3001595

FBSR 5-6 - Plug-in bridge 3001596

FBSR 10-6 - Plug-in bridge 3033716

FBSRH 2-6 - Short-circuit connector 3033812

FBS 2-6 BU - Plug-in bridge 3036932

FBS 3-6 BU - Plug-in bridge 3036945

FBS 4-6 BU - Plug-in bridge 3036958

FBS 5-6 BU - Plug-in bridge 3036961

FBS 10-6 BU - Plug-in bridge 3032198

FBS 20-6 BU - Plug-in bridge 3032208

FBS 50-6 BU - Plug-in bridge 3032211

ATP-STTB 4 - Partition plate 3030747

STP 5-2 - Marker carriers 0800967

WST 4 - Warning cover 3030954

LPS-6/E - Service connector 3270540

LPS-6 - Service connector 3270541

LPO 4/E - Pick-off plug 3270519

LPO 4 - Pick-off plug 3270522

D-STTB 4 - End cover 3030462

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 6:UNBEDRUCKT - Zack marker strip 1051003

ZB 6 CUS - Zack marker strip 0824992

ZB 6,LGS:FORTL.ZAHLEN - Zack marker strip 1051016

ZB 6,QR:FORTL.ZAHLEN - Zack marker strip 1051029

ZB 6,LGS:GLEICHE ZAHLEN - Zack marker strip 1051032

ZB 6,LGS:L1-N,PE - Marker for terminal blocks 1051414

ZB 6,LGS:U-N - Marker for terminal blocks 1051430

UC-TM 6 - Marker for terminal blocks 0818085

UC-TM 6 CUS - Marker for terminal blocks 0824589

UCT-TM 6 - Marker for terminal blocks 0828736

UCT-TM 6 CUS - Marker for terminal blocks 0829602

ZBF 6:UNBEDRUCKT - Zack Marker strip, flat 0808710

ZBF 6 CUS - Zack Marker strip, flat 0825027

UC-TMF 6 - Marker for terminal blocks 0818140

UC-TMF 6 CUS - Marker for terminal blocks 0824646

UCT-TMF 6 - Marker for terminal blocks 0828746

UCT-TMF 6 CUS - Marker for terminal blocks 0829665

ZBF 6,LGS:FORTL.ZAHLEN - Zack Marker strip, flat 0808749

ZBF 6,QR:FORTL.ZAHLEN - Zack Marker strip, flat 0808765

ZBF 6,LGS:GERADE ZAHLEN - Zack Marker strip, flat 0810834

ZBF 6,LGS:UNGERADE ZAHLEN - Zack Marker strip, flat 0810876

STTB 4 BU - Double-level spring-cage terminal block

3031432