Image not available
Illustrative purposes only
1751086
Pluggable Terminal Block, 5 mm, 4 Ways, 2.5 mm², Screw
⚠️ Reference pricing provided. In case of supply shortages, we will connect you with our trusted procurement partners to ensure your project's continuity.
- Manufacturer: PHOENIX CONTACT
- Product type: Pluggable Terminal Blocks
- SVHC: No SVHC (04-Feb-2026)
- Pitch Spacing: 5mm
- Product Range: CLASSIC COMBICON MSTB
- Rated Current: 12A
- Rated Voltage: 320V
- Wire Size (AWG): 24AWG to 12AWG
- No. of Positions: 4Ways
- Conductor Area CSA: 2.5mm²
- Wire Connection Method: Screw
| Delivery and price | |
|---|---|
| Units per pack | 50 |
| Price | 2.85 € |
| Current stock | 10+ |
| Lead time | 30 days |
Datasheet
https://www.phoenixcontact.com/lt/products/1751086 ## Printed-circuit board connector - MSTB 2,5/ 4-ST BD:1-4 - 1751086 Please be informed that the data shown in this PDF Document is generated from our Online Catalog. Please find the complete data in the user's documentation. Our General Terms of Use for Downloads are valid (http://phoenixcontact.com/download) Plug component, Nominal current: 12 A, Rated voltage (III/2): 320 V, Number of positions: 4, Pitch: 5 mm, Connection method: Screw connection with tension sleeve, Color: green, Contact surface: Tin The figure shows a 10-position version of the product Key Commercial Data Packing unit 50 STK ~~a~~ GTIN ~~LI a~~ Weight per Piece (excluding packing) 6.7 g ~~a~~ Custom tariff number 85366990 Country of origin Germany ~~a~~ ~~**Qe**~~ ## Technical data ## Dimensions |Pitch|5.00 mm| |---|---| |Dimension a|15 mm| |General|| |Range of articles|MSTB 2,5/..-ST| |Type of contact|Female connector| |Number of positions|4| |Connection method|Screw connection with tension sleeve| |Insulating material group|I| |Rated surge voltage (III/3)|4 kV| |Rated surge voltage (III/2)|4 kV| |Rated surge voltage (II/2)|4 kV| |Rated voltage (III/3)|250 V| |Rated voltage (III/2)|320 V| 07/19/2016 Page 1 / 9 https://www.phoenixcontact.com/lt/products/1751086 ## Printed-circuit board connector - MSTB 2,5/ 4-ST BD:1-4 - 1751086 ## Technical data ## General |Rated voltage (II/2)|630 V| |---|---| |Connection in acc. with standard|EN-VDE| |Nominal current IN|12 A| |Nominal cross section|2.5 mm²| |Maximum load current|12 A (with a 2.5 mm² conductor cross section)| |Insulating material|PA| |Flammability rating according to UL 94|V0| |Internal cylindrical gage|A3| |Stripping length|7 mm| |Screw thread|M3| |Tightening torque, min|0.5 Nm| |Tightening torque max|0.6 Nm| |Connection data|| |Conductor cross section solid min.|0.2 mm²| |Conductor cross section solid max.|2.5 mm²| |Conductor cross section flexible min.|0.2 mm²| |Conductor cross section flexible max.|2.5 mm²| |Conductor cross section flexible, with ferrule without plastic sleeve min.|0.25 mm²| |Conductor cross section flexible, with ferrule without plastic sleeve max.|2.5 mm²| |Conductor cross section flexible, with ferrule with plastic sleeve min.|0.25 mm²| |Conductor cross section flexible, with ferrule with plastic sleeve max.|2.5 mm²| |Conductor cross section AWG min.|24| |Conductor cross section AWG max.|12| |2 conductors with same cross section, solid min.|0.2 mm²| |2 conductors with same cross section, solid max.|1 mm²| |2 conductors with same cross section, stranded min.|0.2 mm²| |2 conductors with same cross section, stranded max.|1.5 mm²| |2 conductors with same cross section, stranded, ferrules without plastic<br>sleeve, min.|0.25 mm²| |2 conductors with same cross section, stranded, ferrules without plastic<br>sleeve, max.|1 mm²| |2 conductors with same cross section, stranded, TWIN ferrules with<br>plastic sleeve, min.|0.5 mm²| |2 conductors with same cross section, stranded, TWIN ferrules with<br>plastic sleeve, max.|1.5 mm²| |Minimum AWG according to UL/CUL|30| |Maximum AWG according to UL/CUL|12| |Standards and Regulations|| |Connection in acc. with standard|EN-VDE| ||CSA| 07/19/2016 Page 2 / 9 https://www.phoenixcontact.com/lt/products/1751086 ## Printed-circuit board connector - MSTB 2,5/ 4-ST BD:1-4 - 1751086 ## Technical data ## Standards and Regulations Flammability rating according to UL 94 V0 ## Classifications ## eCl@ss **==> picture [350 x 276] intentionally omitted <==** **----- Start of picture text -----**<br> ||| |---|---| |eCl@ss 4.0|272607xx| |eCl@ss 4.1|27260701| |eCl@ss 5.0|27260701| |eCl@ss 5.1|27260701| |eCl@ss 6.0|27260704| |eCl@ss 7.0|27440402| |eCl@ss 8.0|27440309| |eCl@ss 9.0|27440309| |ETIM| |ETIM 3.0|EC001121| |ETIM 4.0|EC002638| |ETIM 5.0|EC002638| |UNSPSC| |UNSPSC 6.01|30211810| |UNSPSC 7.0901|39121409| |UNSPSC 11|39121409| |UNSPSC 12.01|39121409| |UNSPSC 13.2|39121409| **----- End of picture text -----**<br> ## Approvals ## Approvals ## Approvals CSA / VDE Gutachten mit Fertigungsüberwachung / IECEE CB Scheme / EAC / cULus Recognized / EAC ## Ex Approvals Approvals submitted ## Approval details 07/19/2016 Page 3 / 9 https://www.phoenixcontact.com/lt/products/1751086 ## Printed-circuit board connector - MSTB 2,5/ 4-ST BD:1-4 - 1751086 Approvals CSA ~~pf~~ B D ~~a~~ mm²/AWG/kcmil 28-12 28-12 ~~a~~ Nominal current IN 15 A 10 A ~~a~~ Nominal voltage UN ~~G~~ 300 V 300 V VDE Gutachten mit Fertigungsüberwachung ~~ft OO~~ mm²/AWG/kcmil 0.2-2.5 ~~GO~~ Nominal current IN 12 A ~~Ce~~ Nominal voltage UN 250 V IECEE CB Scheme ~~a a~~ mm²/AWG/kcmil ~~O~~ 0.2-2.5 ~~GO~~ Nominal current IN 12 A Nominal voltage UN 250 V ~~RC~~ EAC ~~PT~~ cULus Recognized B D mm²/AWG/kcmil 30-12 30-12 Nominal current IN 15 A 15 A Nominal voltage UN 300 V 150 V EAC ~~PT~~ Accessories Accessories Bridge 07/19/2016 Page 4 / 9 https://www.phoenixcontact.com/lt/products/1751086 ## Printed-circuit board connector - MSTB 2,5/ 4-ST BD:1-4 - 1751086 ## Accessories Insertion bridge - EBP 2- 5 - 1733169 Insertion bridge, fully insulated, for connectors with 5.0 or 5.08 mm pitch, no. of positions: 2 Insertion bridge - EBP 3- 5 - 1733172 Insertion bridge, fully insulated, for connectors with 5.0 or 5.08 mm pitch, no. of positions: 3 Insertion bridge - EBP 4- 5 - 1733185 Insertion bridge, fully insulated, for connectors with 5.0 or 5.08 mm pitch, no. of positions: 4 ## Cable housing Cable housing - KGG-MSTB 2,5/ 4 - 1803882 Cable housing, Pitch: 0 mm, Number of positions: 4, Dimension a: 20 mm, Color: green ## Coding element Coding profile - CP-MSTB - 1734634 Coding profile, is inserted into the slot on the plug or inverted header, red insulating material Labeled terminal marker 07/19/2016 Page 5 / 9 https://www.phoenixcontact.com/lt/products/1751086 ## Printed-circuit board connector - MSTB 2,5/ 4-ST BD:1-4 - 1751086 ## Accessories Marker card - SK 5/3,8:FORTL.ZAHLEN - 0804183 Marker card, Card, white, labeled, Horizontal: Consecutive numbers 1 - 10, 11 - 20, etc. up to 91 - (99)100, Mounting type: Adhesive, for terminal block width: 5 mm, Lettering field: 5 x 3.8 mm ## Screwdriver tools Screwdriver - SZS 0,6X3,5 - 1205053 Actuation tool, for ST terminal blocks, insulated, also suitable for use as a bladed screwdriver, size: 0.6 x 3.5 x 100 mm, 2-component grip, with non-slip grip ## Additional products Base strip - DFK-MSTB 2,5/ 4-G - 0707125 Plug component, Nominal current: 12 A, Rated voltage (III/2): 320 V, Number of positions: 4, Pitch: 5 mm, Connection method: Solder/Slip-on connection, Color: green, Contact surface: Tin, Mounting: Direct mounting, Accessory order no. 5030172 can only be used in conjunction with MSTB 2,5/...ST and MSTBT 2,5/...ST. Base strip - MSTBW 2,5/ 4-G - 1736098 Header, Nominal current: 12 A, Rated voltage (III/2): 320 V, Number of positions: 4, Pitch: 5 mm, Color: green, Contact surface: Tin, Mounting: Wave soldering Ry Base strip - MSTBVA 2,5/ 4-G - 1755532 Header, Nominal current: 12 A, Rated voltage (III/2): 320 V, Number of positions: 4, Pitch: 5 mm, Color: green, Contact surface: Tin, Mounting: Wave soldering ~~=~~ 07/19/2016 Page 6 / 9 https://www.phoenixcontact.com/lt/products/1751086 ## Printed-circuit board connector - MSTB 2,5/ 4-ST BD:1-4 - 1751086 ## Accessories Base strip - MSTBV 2,5/ 4-G - 1753479 Header, Nominal current: 12 A, Rated voltage (III/2): 320 V, Number of positions: 4, Pitch: 5 mm, Color: green, Contact surface: Tin, Mounting: Wave soldering ~~nn~~ Base strip - MSTB 2,5/ 4-G - 1754478 Header, Nominal current: 12 A, Rated voltage (III/2): 320 V, Number of positions: 4, Pitch: 5 mm, Color: green, Contact surface: Tin, Mounting: Wave soldering ~~ia~~ Base strip - MDSTBVA 2,5/ 4-G - 1845808 Header, Nominal current: 10 A, Rated voltage (III/2): 320 V, Number of positions: 4, Pitch: 5 mm, Color: green, Contact surface: Tin, Mounting: Wave soldering, The article can be aligned to create different nos. of positions! In combination with MVSTB or FKCV plug components, both an MVSTBW (or FKCVW) and an MVSTBR plug (or FKCVR) must be used. Combination with TMSTBP plug components is not possible! ~~scl~~ Base strip - MDSTBA 2,5/ 4-G - 1846535 Header, Nominal current: 10 A, Rated voltage (III/2): 320 V, Number of positions: 4, Pitch: 5 mm, Color: green, Contact surface: Tin, Mounting: Wave soldering, The article can be aligned to create different nos. of positions! In combination with MVSTB or FKCV plug components, both an MVSTBW (or FKCVW) and an MVSTBR plug (or FKCVR) must be used. Combination with TMSTBP plug components is not possible! ~~=U~~ Base strip - EMSTBA 2,5/ 4-G - 1899867 Header, Nominal current: 12 A, Rated voltage (III/2): 320 V, Number of positions: 4, Pitch: 5 mm, Color: green, Contact surface: Tin, Mounting: Press-in technology 07/19/2016 Page 7 / 9 https://www.phoenixcontact.com/lt/products/1751086 ## Printed-circuit board connector - MSTB 2,5/ 4-ST BD:1-4 - 1751086 ## Accessories Base strip - EMSTBVA 2,5/ 4-G - 1914878 Header, Nominal current: 12 A, Rated voltage (III/2): 320 V, Number of positions: 4, Pitch: 5 mm, Color: green, Contact surface: Tin, Mounting: Press-in technology Base strip - MSTBA 2,5/ 4-G-LA - 1770504 Header, Nominal current: 12 A, Rated voltage (III/2): 320 V, Number of positions: 4, Pitch: 5 mm, Color: green, Contact surface: Tin, Mounting: Wave soldering Base strip - MSTBA 2,5/ 4-G - 1757491 Header, Nominal current: 12 A, Rated voltage (III/2): 320 V, Number of positions: 4, Pitch: 5 mm, Color: green, Contact surface: Tin, Mounting: Wave soldering ## Base strip - MSTB 2,5/ 4-G-LA - 1768202 Header, Nominal current: 12 A, Rated voltage (III/2): 320 V, Number of positions: 4, Pitch: 5 mm, Color: green, Contact surface: Tin, Mounting: Wave soldering ## Base strip - MDSTBV 2,5/ 4-G1 - 1736739 Header, Nominal current: 10 A, Rated voltage (III/2): 320 V, Number of positions: 4, Pitch: 5 mm, Color: green, Contact surface: Tin, Mounting: Wave soldering, In combination with MVSTB or FKCV plug components, both an MVSTBW (or FKCVW) and an MVSTBR plug (or FKCVR) must be used. Combination with TMSTBP plug components is not possible! 07/19/2016 Page 8 / 9 https://www.phoenixcontact.com/lt/products/1751086 ## Printed-circuit board connector - MSTB 2,5/ 4-ST BD:1-4 - 1751086 ## Accessories Base strip - MDSTB 2,5/ 4-G1 - 1736690 Header, Nominal current: 10 A, Rated voltage (III/2): 320 V, Number of positions: 4, Pitch: 5 mm, Color: green, Contact surface: Tin, Mounting: Wave soldering, In combination with MVSTB or FKCV plug components, both an MVSTBW (or FKCVW) and an MVSTBR plug (or FKCVR) must be used. Combination with TMSTBP plug components is not possible! ~~LULU =~~ Base strip - SMSTBA 2,5/ 4-G - 1769829 Header, Nominal current: 12 A, Rated voltage (III/2): 320 V, Number of positions: 4, Pitch: 5 mm, Color: green, Contact surface: Tin, Mounting: Wave soldering ~~a~~ Base strip - SMSTB 2,5/ 4-G - 1769256 Header, Nominal current: 12 A, Rated voltage (III/2): 320 V, Number of positions: 4, Pitch: 5 mm, Color: green, Contact surface: Tin, Mounting: Wave soldering Phoenix Contact 2016 © - all rights reserved http://www.phoenixcontact.com 07/19/2016 Page 9 / 9
Updated at April 29, 2026
Phoenix Contact is a global leader in industrial connection technology, automation systems, and electronic interface solutions. With decades of engineering heritage originating in Germany, the company develops robust components designed to ensure reliable power, data, and signal transmission across demanding manufacturing and industrial environments. The cornerstone of the Phoenix Contact portfolio is its industry-leading selection of connection technologies. The range features an exceptional variety of terminal blocks, including pluggable headers and sockets, highly reliable wire-to-board solutions, and versatile DIN rail terminal blocks. These foundational connectivity components are supported by a comprehensive ecosystem of power distribution blocks, interface modules, marking systems, and accessories engineered for seamless control cabinet wiring. Beyond physical connectivity, Phoenix Contact provides critical components for advanced automation, control, and system protection. The wider offering encompasses a broad spectrum of process controllers, high-efficiency AC/DC converters, and a comprehensive suite of power, safety, and solid-state relays. From precision signal converters and electronic circuit breakers to fiber optic cable assemblies, Phoenix Contact equips engineers with the high-performance technologies required to build secure, highly efficient, and future-ready industrial systems.
About Novapart
Novapart is a B2B electronic component broker specialising in stock shortages and cost reduction. We source hard-to-find parts and identify compliant alternatives across a catalogue of 410,000+ components from 500+ manufacturers.
Learn more →Stock Shortage Specialist
When a component is unavailable, discontinued or has an unacceptable lead time, we tap into our network of vetted European and Asian distributors to source what you need — without compromising on quality or traceability.
Request a quote →Compliant Alternatives
We identify pin-to-pin, electrically equivalent substitutes that meet the same certifications (RoHS, AEC-Q100, REACH) as your original specification — validated against datasheets, not just part numbers. Often at a lower cost.
BOM Analysis service →