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DIN-rail terminal blocks Phoenix UT, ST and UK: width per pole 5.2 / 6.2 / 8.2 / 10.2 mm, height on the rail, wire range, strip length

How wide is a DIN-rail terminal block per pole, and what wire does a UT 2,5, UT 4, ST 2,5 or UK 5 N take? · Standard part · basis: Phoenix Contact datasheets for nine feed-through blocks (UT, ST and UK families) as hosted by Farnell, Chipdip, corys.co.nz and phoenixcontact.com; numbers only

Also called: ut 2,5 terminal block width, phoenix ut 4 dimensions, st 2,5 terminal block width 5.2 mm, din rail terminal block dimensions, terminal block width per pole, uk 5 n width 6.2 mm, ut 10 terminal height ns 35, phoenix contact 3044076 dimensions, 3031212 st 2,5 height, terminal block wire range 2.5 mm2 4 mm2 6 mm2 10 mm2, din rail terminal block 5.2 mm, ut 6 8.2 mm, end cover width terminal block

Exact dimensions. True size, with no tolerance added.

sizes: 9 in table

Notes

Width per pole read from the sheets: 5.2 mm (2.5 mm2 class: UT 2,5, ST 2,5), 6.2 mm (4 mm2 class: UT 4, ST 4, UK 5 N), 8.2 mm (6 mm2 class: UT 6, ST 6) and 10.2 mm (10 mm2 class: UT 10, UK 10 N). A block's end cover adds 2.2 mm (UT / ST) or 1.8 mm (UK). A row of n blocks measures n x width plus one end cover.
Heights are shown on the rail the sheet names: NS 35/7,5 (7.5 mm deep DIN rail) and NS 35/15 (15 mm). The UT sheets also print a single 'height 46.9' without a rail; the UK 5 N sheet prints one height (42.5) and its depth on each rail. The columns follow each sheet; 'length' is what Phoenix prints as length (47.7 for UT, 42.5 for UK 10 N) and is not the same measurement across families. Rail dimensions are on din-rail-35mm.
Wire range, strip length and nominal current / voltage are as printed in the sheet's connection data. The UT 6 BU and UT 10 sheets list the end cover as the D-UT 2,5/10 cover (2.2 mm). The ST 2,5 sheet prints the flexible AWG maximum as 14 in one table and 12 in another; both are noted. Ratings are the sheet's nominal values, not a design limit for your installation.
Not read: UT 16, ST 10, ST 16, UK 2,5 N, UK 6 N, UK 16 N and the other variants (double-level, PE, fused). The 'width per pole' sequence above is read from the nine families listed; it is not asserted for blocks not read.
No file: the block outline (latch, foot, screw access) is not published as numbers in the sheets. Phoenix publishes per-part STEP on its product pages (linked, not copied).

DIN-rail terminal blocks Phoenix UT, ST and UK: width per pole 5.2 /… size chart

type	order no.	width per pole (mm)	end cover width (mm)	height on NS 35/7,5 (mm)	height on NS 35/15 (mm)	length / height / depth as printed (mm)	solid mm2 (AWG)	flexible mm2	strip (mm)	nominal current / voltage
UT 2,5 (screw)	3044076	5.2	2.2	47.5	55	length 47.7; height 46.9	0.14-4 (26-12)	0.14-4	9	24 A / 1000 V
UT 4 (screw)	3044102	6.2	2.2	47.5	55	length 47.7; height 46.9	0.14-6 (26-10)	0.14-6	9	32 A (4 mm2) / 1000 V
UT 6 BU (screw)	3044144	8.2	2.2 (D-UT 2,5/10 cover)	47.5	55	length 47.7	0.2-10 (24-8)	0.2-10 stranded	10	41 A / 1000 V
UT 10 (screw)	3044160	10.2	2.2 (D-UT 2,5/10 cover)	47.5	55	length 47.7	0.5-16 (20-6)	0.5-16 stranded	10	57 A / 1000 V
ST 2,5 (spring-cage)	3031212	5.2	2.2	36.5	44	length 48.5	0.08-4 (28-12)	0.08-2.5 (28-14; one table prints 12)	8-10	24 A (2.5 mm2) / 800 V
ST 4 (spring-cage)	3031364	6.2	2.2	36.5	44	length 56	0.08-6 (28-10)	0.08-4	8-10	32 A / 800 V
ST 6 (spring-cage)	3031487	8.2	2.2 (D-ST 6 cover)	43.5	51	length 69.5	0.2-10 (24-8)	0.2-6 stranded	12	41 A / 1000 V
UK 5 N RD (screw)	3026696	6.2	1.8	— (one height)	—	height 42.5; depth 47 (NS 35/7,5), 54.5 (NS 35/15), 52 (NS 32)	0.2-6 (24-10)	0.2-4 (24-12)	8	32 A / 800 V
UK 10 N BU (screw)	3005086	10.2	1.8	47.3	54.8	length 42.5	0.5-16 (20-6)	0.5-10 (20-8)	10	57 A / 800 V

Where the files are

Other publishers' files are linked, not hosted. "verify" = check the license at the link before commercial use.

Phoenix Contact (Farnell copy of the UT 2,5 3044076 sheet)	UT 2,5 feed-through terminal block: width 5.2 mm, end cover 2.2 mm, length 47.7, height 46.9 / NS 35/7,5 47.5 / NS 35/15 55 mm	web	Publisher's page; dimensions are facts
Phoenix Contact (Chipdip copy of the UT 4 3044102 sheet)	UT 4 feed-through terminal block: width 6.2 mm	web	Publisher's page; dimensions are facts
Phoenix Contact (Farnell copy, UT 6 BU 3044144)	UT 6 BU: width 8.2 mm, 0.2 to 10 mm2	web	Publisher's page; dimensions are facts
Phoenix Contact (Farnell copy, UT 10 3044160)	UT 10: width 10.2 mm, 0.5 to 16 mm2	web	Publisher's page; dimensions are facts
Phoenix Contact (corys.co.nz copy of the ST 2,5 3031212 sheet)	ST 2,5 spring-cage feed-through: width 5.2 mm, length 48.5, heights 36.5 / 44 mm	web	Publisher's page; dimensions are facts
Phoenix Contact (Chipdip copy of the ST 4 3031364 sheet)	ST 4: width 6.2 mm, length 56, heights 36.5 / 44 mm	web	Publisher's page; dimensions are facts
Phoenix Contact (Chipdip copy of the ST 6 3031487 sheet)	ST 6: width 8.2 mm, length 69.5, heights 43.5 / 51 mm	web	Publisher's page; dimensions are facts
Phoenix Contact (UK 5 N RD 3026696 sheet)	UK 5 N RD: width 6.2 mm, end cover 1.8 mm, height 42.5, depth 47 / 54.5 / 52 mm	web	Publisher's page; dimensions are facts
Phoenix Contact (Chipdip copy of the UK 10 N BU 3005086 sheet)	UK 10 N BU: width 10.2 mm, end cover 1.8 mm, length 42.5, heights 47.3 / 54.8 mm	web	Publisher's page; dimensions are facts
Phoenix Contact	Phoenix Contact terminal block product pages carry per-part CAD (example page: UT 2,5-MTD)	STEP, PDF	Phoenix Contact site terms verify

Xem scan

File coming

No downloadable true-size file yet: the published figures do not fix the whole shape, and Xem never guesses a number. A measured scan is planned; request it and it moves up.

Let your AI pull this. Add https://xemstudio.com/mcp to Claude, ChatGPT, Cursor or any MCP client (free, no account, one minute) and it can look up exact sizes, mating fits and free STEP/STL from every chat.

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Plain text: sheet.txt · JSON: /api/geometry?object=din-rail-terminal-blocks-phoenix-ut-st-uk

Schematic, not to scale.