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1788127
Pluggable Terminal Block, 5.08 mm, 3 Ways, 24 AWG, 12 AWG, 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
- Pitch Spacing:5.08mm; No. of Positions:3Ways; Wire Size (AWG):24AWG to 12AWG; Conductor Area CSA:2.5mm²; Wire Connection Method:Screw; Rated Current:12A; Rated Voltage:320V; Produc
- SVHC: No SVHC (04-Feb-2026)
- Pitch Spacing: 5.08mm
- Product Range: MSTB
- Rated Current: 12A
- Rated Voltage: 320V
- Wire Size (AWG): 24AWG to 12AWG
- No. of Positions: 3Ways
- Wire Size AWG Max: 12AWG
- Wire Size AWG Min: 24AWG
- Conductor Area CSA: 2.5mm²
- Wire Connection Method: Screw
| Delivery and price | |
|---|---|
| Units per pack | 500 |
| Price | 5.3 € |
| Current stock | 25+ |
| Lead time | 30 days |
Datasheet
https://www.phoenixcontact.com/gb/products/1788127 ## Plug-in block - UMSTBVK 2,5/ 3-G-5,08 - 1788127 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: 3, Pitch: 5.08 mm, Connection method: Screw connection with tension sleeve, Color: green, Contact surface: Tin, Mounting: DIN rail The figure shows a 10-position version of the product ## Why buy this product w Can be combined with COMBICON plugs with 5.08 mm pitch w With universal foot for mounting on NS 32 or NS 35 DIN rails ## Key Commercial Data Packing unit 50 STK ~~a G~~ GTIN ~~pA CO~~ GTIN 4017918043186 ~~a~~ Weight per Piece (excluding packing) 10.760 g Custom tariff number 85366990 ~~aC Ce~~ Country of origin Germany ## Technical data ## Environmental Product Compliance |China RoHS|Hazardous substances above threshold values;| |---|---| ||Environmentally Friendly Use Period = 50;| ||For details go to tab “Downloads”, Category “Manufacturer's declaration”| |Dimensions|| |Width|42.5 mm| |Pitch|5.08 mm| |Dimension a|10.16 mm| |General|| |Range of articles<br>UMSTBVK 2,5/..-G<br>~~a~~|| 09/19/2016 Page 1 / 9 https://www.phoenixcontact.com/gb/products/1788127 ## Plug-in block - UMSTBVK 2,5/ 3-G-5,08 - 1788127 ## Technical data ## General |Type of contact|Male connector| |---|---| |Number of positions|3| |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)|320 V| |Rated voltage (III/2)|320 V| |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| |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| 09/19/2016 Page 2 / 9 https://www.phoenixcontact.com/gb/products/1788127 ## Plug-in block - UMSTBVK 2,5/ 3-G-5,08 - 1788127 ## Technical data ## Connection data |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| |Flammability rating according to UL 94|V0| ## Drawings ## Dimensional drawing **==> picture [148 x 102] intentionally omitted <==** **----- Start of picture text -----**<br> 41 2,5<br>36 a+6,6<br>glas2 I<br>1g | SOTSS<br>50,4 5,08<br>a<br>42,5<br>**----- End of picture text -----**<br> ## Classifications ## eCl@ss |eCl@ss 4.0|eCl@ss 4.0|272607xx| |---|---|---| |eCl@ss 4.1|eCl@ss 4.1|27260701| |eCl@ss 5.0|eCl@ss 5.0|27260701| |eCl@ss 5.1|eCl@ss 5.1|27260701| |eCl@ss 6.0|eCl@ss 6.0|27260704| |eCl@ss 7.0|eCl@ss 7.0|27440402| |eCl@ss 8.0|eCl@ss 8.0|27141106| |eCl@ss 9.0|eCl@ss 9.0|27141106| ## ETIM |ETIM 3.0|EC001121| |---|---| |ETIM 4.0|EC002637| |ETIM 5.0|EC001284| |UNSPSC|| |UNSPSC 6.01<br>30211810<br>~~a~~|| 09/19/2016 Page 3 / 9 https://www.phoenixcontact.com/gb/products/1788127 ## Plug-in block - UMSTBVK 2,5/ 3-G-5,08 - 1788127 ## Classifications ## UNSPSC |UNSPSC 7.0901|UNSPSC 7.0901|39121409| |---|---|---| |UNSPSC 11|UNSPSC 11|39121409| |UNSPSC 12.01|UNSPSC 12.01|39121409| |UNSPSC 13.2|UNSPSC 13.2|39121409| ## Approvals ## Approvals ## Approvals CSA / UL Recognized / VDE Gutachten mit Fertigungsüberwachung / cUL Recognized / IECEE CB Scheme / EAC / EAC / cULus Recognized Ex Approvals ## Approval details |CSA<br>http://www.csagroup.org/us/en/services/testing-and-certification/certified-product-listing 13631|CSA<br>http://www.csagroup.org/us/en/services/testing-and-certification/certified-product-listing 13631|CSA<br>http://www.csagroup.org/us/en/services/testing-and-certification/certified-product-listing 13631| |---|---|---| ||B|D| |mm²/AWG/kcmil<br>~~a~~|28-12<br>28-12<br>~~GG~~|| |Nominal current IN|10 A|10 A| |Nominal voltage UN<br>300 V<br>300 V<br>~~LG~~||| |||| |UL Recognized<br>http://database.ul.com/cgi-bin/XYV/template/LISEXT/1FRAME/index.htm FILE E 60425||| |B<br>D<br>~~pf~~||| |mm²/AWG/kcmil<br>~~a~~|30-12<br>30-12<br>~~GG~~|| |Nominal current IN<br>~~a~~|12 A<br>10 A<br>~~GG~~|| |Nominal voltage UN<br>~~a~~|250 V<br>300 V<br>~~GG~~|| VDE Gutachten mit Fertigungsüberwachung http://www.vde.de 40004701 ~~ee a~~ mm²/AWG/kcmil 0.2-2.5 Nominal current IN 12 A ~~a a~~ Nominal voltage UN 250 V 09/19/2016 Page 4 / 9 https://www.phoenixcontact.com/gb/products/1788127 ## Plug-in block - UMSTBVK 2,5/ 3-G-5,08 - 1788127 ## Approvals |cUL Recognized<br>http://database.ul.com/cgi-bin/XYV/template/LISEXT/1FRAME/index.htm FILE E 60425|cUL Recognized<br>http://database.ul.com/cgi-bin/XYV/template/LISEXT/1FRAME/index.htm FILE E 60425| |---|---| |B|D| |mm²/AWG/kcmil<br>30-12<br>30-12<br>~~GO~~|| |Nominal current IN<br>12 A<br>10 A<br>~~GO~~|| |Nominal voltage UN<br>250 V<br>300 V<br>~~GQ~~|| ||| |IECEE CB Scheme<br>http://www.iecee.org/ DE1-56062-B1B2|| |~~a~~|| |mm²/AWG/kcmil<br>0.2-2.5<br>~~a~~|| |Nominal current IN<br>12 A<br>~~a~~|| |Nominal voltage UN<br>250 V<br>~~a~~|| |EAC EAC-Zulassung<br>~~PT~~|| EAC B.01742 ~~T~~ cULus Recognized http://database.ul.com/cgi-bin/XYV/template/LISEXT/1FRAME/index.htm ## Accessories Accessories Bridge Insertion bridge - EBP 2- 5 - 1733169 Insertion bridge, fully insulated, for connectors with 5.0 or 5.08 mm pitch, no. of positions: 2 Coding element 09/19/2016 Page 5 / 9 https://www.phoenixcontact.com/gb/products/1788127 ## Plug-in block - UMSTBVK 2,5/ 3-G-5,08 - 1788127 ## Accessories Coding star - CR-MSTB - 1734401 Coding section, inserted into the recess in the header or the inverted plug, red insulating material ## ~~an~~ ## Filler plug Accessories - MSTB-BL - 1755477 Keying cap, for forming sections, plugs onto header pin, green insulating material ## Labeled terminal marker Marker card - SK 5,08/3,8:FORTL.ZAHLEN - 0804293 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: 5.08 mm, Lettering field: 5.08 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 Printed-circuit board connector - MSTB 2,5/ 3-ST-5,08 - 1757022 Plug component, Nominal current: 12 A, Rated voltage (III/2): 320 V, Number of positions: 3, Pitch: 5.08 mm, Connection method: Screw connection with tension sleeve, Color: green, Contact surface: Tin ~~eS~~ 09/19/2016 Page 6 / 9 https://www.phoenixcontact.com/gb/products/1788127 ## Plug-in block - UMSTBVK 2,5/ 3-G-5,08 - 1788127 ## Accessories Printed-circuit board connector - MSTB 2,5/ 3-STZ-5,08 - 1776168 Plug component, Nominal current: 12 A, Rated voltage (III/2): 320 V, Number of positions: 3, Pitch: 5.08 mm, Connection method: Screw connection with tension sleeve, Color: green, Contact surface: Tin ~~aoe~~ Printed-circuit board connector - MSTBP 2,5/ 3-ST-5,08 - 1769023 Plug component, Nominal current: 12 A, Rated voltage (III/2): 320 V, Number of positions: 3, Pitch: 5.08 mm, Connection method: Screw connection with tension sleeve, Color: green, Contact surface: Tin ~~cs[UU]~~ Printed-circuit board connector - SMSTB 2,5/ 3-ST-5,08 - 1826296 Plug component, Nominal current: 12 A, Rated voltage (III/2): 320 V, Number of positions: 3, Pitch: 5.08 mm, Connection method: Screw connection with tension sleeve, Color: green, Contact surface: Tin ~~wo~~ Printed-circuit board connector - MVSTBR 2,5/ 3-ST-5,08 - 1792252 Plug component, Nominal current: 12 A, Rated voltage (III/2): 320 V, Number of positions: 3, Pitch: 5.08 mm, Connection method: Screw connection with tension sleeve, Color: green, Contact surface: Tin ~~=U~~ Printed-circuit board connector - MVSTBW 2,5/ 3-ST-5,08 - 1792760 Plug component, Nominal current: 12 A, Rated voltage (III/2): 320 V, Number of positions: 3, Pitch: 5.08 mm, Connection method: Screw connection with tension sleeve, Color: green, Contact surface: Tin ~~=e[lll]~~ 09/19/2016 Page 7 / 9 https://www.phoenixcontact.com/gb/products/1788127 ## Plug-in block - UMSTBVK 2,5/ 3-G-5,08 - 1788127 ## Accessories Printed-circuit board connector - FRONT-MSTB 2,5/ 3-ST-5,08 - 1777293 Plug component, Nominal current: 12 A, Rated voltage (III/2): 320 V, Number of positions: 3, Pitch: 5.08 mm, Connection method: Front screw connection, Color: green, Contact surface: Tin ~~=~~ Printed-circuit board connector - FKC 2,5/ 3-ST-5,08 - 1873061 Plug component, Nominal current: 12 A, Rated voltage (III/2): 320 V, Number of positions: 3, Pitch: 5.08 mm, Connection method: Push-in spring connection, Color: green, Contact surface: Tin ~~=[SSC]~~ Printed-circuit board connector - FKCVR 2,5/ 3-ST-5,08 - 1873964 Plug component, Nominal current: 12 A, Rated voltage (III/2): 320 V, Number of positions: 3, Pitch: 5.08 mm, Connection method: Push-in spring connection, Color: green, Contact surface: Tin ~~a~~ Printed-circuit board connector - QC 1/ 3-ST-5,08 - 1883268 ## Printed-circuit board connector - QC 1/ 3-ST-5,08 - 1883268 Plug component, Nominal current: 10 A, Rated voltage (III/2): 630 V, Number of positions: 3, Pitch: 5.08 mm, Connection method: Displacement connection, Color: green, Contact surface: Tin ## ~~an~~ ## Printed-circuit board connector - MSTBC 2,5/ 3-ST-5,08 - 1808829 Plug component, Nominal current: 12 A, Rated voltage (III/2): 320 V, Number of positions: 3, Pitch: 5.08 mm, Connection method: Crimp connection, Color: green, Corresponding female crimp contacts with current [A] and conductor cross section range [mm²] data: 10A/MSTBC-MT 0,5-1,0 (3190564); 10A/MSTBC-MT 0,5-1,0 BA (3190645); 12A/MSTBC-MT 1,5-2,5 (3190551); 12A/MSTBC-MT 1,5-2,5 BA (3190658). BA = Bandkontakte 09/19/2016 Page 8 / 9 https://www.phoenixcontact.com/gb/products/1788127 ## Plug-in block - UMSTBVK 2,5/ 3-G-5,08 - 1788127 ## Accessories Printed-circuit board connector - MSTBC 2,5/ 3-STZ-5,08 - 1809514 Plug component, Nominal current: 12 A, Rated voltage (III/2): 320 V, Number of positions: 3, Pitch: 5.08 mm, Connection method: Crimp connection, Color: green, Corresponding female crimp contacts with current [A] and conductor cross section range [mm²] data: 10A/MSTBC-MT 0,5-1,0 (3190564); 10A/MSTBC-MT 0,5-1,0 BA (3190645); 12A/MSTBC-MT 1,5-2,5 (3190551); 12A/MSTBC-MT 1,5-2,5 BA (3190658). BA = Bandkontakte Phoenix Contact 2016 © - all rights reserved http://www.phoenixcontact.com 09/19/2016 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.
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