UK Series Screw DIN Rail Terminal Blocks

YOCL ELECTRIC UK Series Screw DIN Rail Terminal Blocks provide screw-clamp conductor connections for electrical panels and DIN rail assemblies.

PA66 nylon insulating housings and brass conductive components.
36 listed models, including standard feed-through, compact, multi-level and protective-earth terminals.
Yellow-green USLKG models for protective-earth connections.
Individual current and voltage ratings, dimensions, stripping lengths and screw sizes.
Rigid and flexible conductor ranges listed for selected models.
Model-specific center-type jumper and end plate options.

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Overview

YOCL ELECTRIC UK Series Screw DIN Rail Terminal Blocks provide conductor connections and circuit organization in electrical panels, control cabinets and DIN rail assemblies. The series uses a screw-clamp connection with a PA66 nylon insulating housing and brass conductive components.

The range includes standard feed-through, compact, multi-level, twin-connection, disconnect and special-function configurations, plus yellow-green USLKG protective-earth terminals. Current and voltage ratings, dimensions, stripping lengths and screw sizes vary by model. Rigid and flexible conductor ranges are listed for selected models below.

Features

Screw-clamp connections: Conductors are secured by the terminal screw.
DIN rail mounting: Individual terminals can be arranged side by side in a terminal assembly.
PA66 nylon housing and brass components: Insulating housings and conductive components use the listed materials.
Multiple configurations: Standard, compact, multi-level and other configurations support different circuit layouts.
Protective-earth models: Yellow-green USLKG terminals are available for PE connections.
Jumper and end plate options: Model-specific accessories support potential distribution and terminal assembly.

Technical Specifications

Parameter	Specification
Brand	YOCL ELECTRIC
Series	UK
Product Type	Screw DIN Rail Terminal Block
Connection Method	Screw Clamp
Mounting	DIN rail
Housing Material	PA66 nylon
Conductive Component Material	Brass
Colors	Grey, black and green across the range; yellow-green for USLKG protective-earth models
Rated Current and Voltage	Model dependent; see model tables
Conductor Range	Rigid and flexible ranges listed for 12 models below
Stripping Length	Model dependent; see model tables
Screw Size	M2, M3, M4, M6, M8 or M10, depending on model
Jumper	Model-specific center-type jumper options
End Plate	Model dependent; enclosed-housing models listed below require no separate end plate

Dimension

Dimensions are listed in L × W × H order, in millimetres. Each row provides the electrical ratings, stripping length and screw size for that model.

Standard UK Terminal Models

Model	Rated Current	Rated Voltage	Dimensions (L × W × H)	Stripping Length	Screw
UK-1.5N	17.5 A	400 V	42.5 × 42 × 4.2 mm	7 mm	M2
UK-2.5B	32 A	400 V	42.5 × 42 × 6.2 mm	8 mm	M3
UK-3N	32 A	400 V	42.5 × 47 × 5.2 mm	8 mm	M3
UK-5N	41 A	400 V	42.5 × 47 × 6.2 mm	8 mm	M3
UK-6N	57 A	800 V	42.5 × 47 × 8.2 mm	10 mm	M4
UK-10N	76 A	800 V	42.5 × 47 × 10.2 mm	12 mm	M4
UK-16N	101 A	800 V	42.5 × 47 × 12.2 mm	14 mm	M4
UK-25N	110 A	800 V	42.5 × 47 × 14.2 mm	14 mm	M4
UK-35N	125 A	800 V	51.2 × 62 × 15.2 mm	16 mm	M6
UIK-35N	125 A	800 V	55 × 51 × 16 mm	16 mm	M6
UK-50N	150 A	800 V	70.5 × 83.5 × 20.1 mm	24 mm	M6
UK-95N	232 A	1000 V	83 × 97.5 × 25.2 mm	33 mm	M8
UK-150N	309 A	1000 V	100 × 119 × 31 mm	40 mm	M10
UK-240N	415 A	1000 V	101 × 125 × 36 mm	40 mm	M10

Compact and Multi-Level Models

Model	Rated Current	Rated Voltage	Dimensions (L × W × H)	Stripping Length	Screw
MBK3	32 A	400 V	28 × 31.5 × 5.2 mm	8 mm	M3
MBKKB-2.5	24 A	400 V	62 × 48 × 5.2 mm	7 mm	M3
MBKKB-2.5-LA	24 A	400 V	62 × 48 × 5.2 mm	7 mm	M3
UDK4	32 A	800 V	63.5 × 47 × 6.2 mm	8 mm	M3
MTKP-P	16 A	800 V	46 × 51.5 × 5.2 mm	7 mm	M3
UKK3	32 A	800 V	56 × 62 × 5.2 mm	8 mm	M3
UKK5	32 A	800 V	56 × 62 × 6.2 mm	8 mm	M3
URTK-4S	57 A	800 V	42.5 × 50 × 8.2 mm	10 mm	M4
URTK-6S	57 A	800 V	72.5 × 50 × 8.2 mm	10 mm	M4
UK5-HESI	6.3 A	800 V	72.5 × 56.5 × 8.2 mm	8 mm	M3

Models with Specified Conductor Ranges

The following three models list both rigid and flexible conductor ranges. These ranges apply to the indicated model.

Model	Rigid Conductor	Flexible Conductor	Rated Current	Rated Voltage	Stripping Length	Dimensions (L × W × H)	Screw
UK-10RD	0.5–16 mm²	0.5–16 mm²	10 A	800 V	11 mm	62 × 59 × 12 mm	M4
UK-5NTWIN	0.2–10 mm²	0.2–4 mm²	32 A	800 V	8 mm	50.5 × 47 × 6.5 mm	M3
DIK-1.5	0.2–4 mm²	0.2–2.5 mm²	30 A	800 V	8 mm	73 × 54 × 6.2 mm	M3

Protective Earth Terminal Blocks

Yellow-green USLKG terminals provide protective-earth configurations with the following model-specific data.

Model	Rigid Conductor	Flexible Conductor	Rated Current	Rated Voltage	Dimensions (L × W × H)	Strip Length	Screw
USLKG-2.5	0.2–4 mm²	0.2–2.5 mm²	32 A	800 V	43.5 × 41 × 6.2 mm	7 mm	M3
USLKG-3	0.2–4 mm²	0.2–2.5 mm²	32 A	800 V	42.5 × 42 × 5.2 mm	7 mm	M3
USLKG-5	0.2–4 mm²	0.2–4 mm²	41 A	800 V	42.5 × 47 × 6.2 mm	9 mm	M3
USLKG-6	0.2–10 mm²	0.2–6 mm²	57 A	800 V	42.5 × 47 × 8.2 mm	10 mm	M4
USLKG-10	0.5–10 mm²	0.5–6 mm²	76 A	800 V	42.5 × 47 × 10.2 mm	10 mm	M4
USLKG-16	2.5–25 mm²	4–16 mm²	101 A	800 V	42.5 × 54 × 12.2 mm	11 mm	M4
USLKG-35	0.75–50 mm²	0.75–30 mm²	125 A	800 V	50 × 62 × 15.2 mm	15 mm	M6
USLKG-50	16–50 mm²	25–50 mm²	150 A	800 V	71 × 83.5 × 20 mm	24 mm	M6
USLKG-95	25–95 mm²	35–95 mm²	232 A	800 V	71 × 99 × 25 mm	30 mm	M8

Selection Guide

Select the terminal configuration, then check the current rating, voltage rating, dimensions, stripping length and screw size for that exact model. For example, UK-240N is rated 415 A at 1000 V, while UK-10RD is rated 10 A at 800 V. These ratings belong to the individual models.

Use the stated rigid or flexible conductor range where provided. Conductor capacity cannot be determined from the model name alone. For USLKG-35, the listed ranges are 0.75–50 mm² for rigid conductors and 0.75–30 mm² for flexible conductors.

Standard terminal models are predominantly grey. Select color by model; yellow-green is specified for the USLKG protective-earth range.

Jumpers, End Plates and Enclosed Housings

Multiple models support center-type jumpers for potential distribution between adjacent terminals. Jumper examples include FB1, EB1 and EBL, alongside model-specific configurations. Match the jumper to the selected terminal model.

End plates are specified for applicable terminal sizes. The following models have enclosed housings and require no separate end plates:

UK-35N
UIK-35N
UK-50N
UK-95N
UK-150N
UK-240N

Specify any required jumper, end plate or other accessory with the terminal model it will be used with.

Ứng dụng

Industrial control cabinets and electrical distribution panels.
Automation equipment and machine control systems.
Equipment internal wiring.
DIN rail terminal assemblies.
Control and power distribution circuits.

Ordering Information

For a quotation, provide the terminal model, quantity, circuit current and voltage requirements, conductor size and conductor type. Include the required configuration, color and any compatible jumper, end plate or other accessory.