BRASS TERMINAL BLOCK
Willele: Reliable Brass Terminal Block Manufacturer
WILLELE provides a full range of brass terminal blocks and ground bars for safe and efficient power distribution.
Made from high-conductivity brass, each unit ensures low resistance, firm clamping, and long-term reliability.
Ideal for use as earth terminal blocks or neutral links, these components offer quick installation and durable performance in electrical panels and enclosures.
- Full range — Ring, fork, spade, butt, and disconnect types for every wiring setup.
- Wide compatibility — Supports 2–24 ways, M4–M8 screws, and 6×9 mm / 8×12 mm bore options for flexible cable sizes.
- Reliable performance — Precision-machined brass body with nickel-plated finish ensures low contact resistance and stable torque.
- Easy installation — Mounts directly on DIN rails or base plates; compatible with standard connectors and grounding systems.
Insulated Terminals & Connectors Collection
Panel & Grounding Terminal Series
Brass Terminal Block — T001 Series
Brass Terminal Block — T002 Series
Brass Terminal Block — T003 Series
Brass Terminal Block — T004 Series
Brass Terminal Block — T005 Series
Brass Terminal Block — T006 Series
Brass Terminal Block — T007 Series
Brass Terminal Block — T008 Series
Brass Terminal Block — T009 Series
Brass Terminal Block — T010 Series
Specifications of Brass Terminal Blocks (T001–T010 Series)
| Article No. | Ways | Spec. | L1 (mm) | L2 Installation (mm) | M Screws | Ø Diameter | Remark |
|---|---|---|---|---|---|---|---|
| T001-0609/4 | 4 | 6×9 | 71.5 | 58.5 | M4 | 5.2 | T001-0609/4B T001-0609/4G |
| T001-0609/6 | 6 | 6×9 | 84.5 | 71.5 | M4 | 5.2 | T001-0609/6B T001-0609/6G |
| T001-0609/8 | 8 | 6×9 | 97.5 | 84.5 | M4 | 5.2 | T001-0609/8B T001-0609/8G |
| T001-0609/10 | 10 | 6×9 | 110.5 | 97.5 | M4 | 5.2 | T001-0609/10B T001-0609/10G |
| T001-0609/12 | 12 | 6×9 | 123.5 | 110.5 | M4 | 5.2 | T001-0609/12B T001-0609/12G |
| T001-0609/14 | 14 | 6×9 | 136.5 | 123.5 | M4 | 5.2 | T001-0609/14B T001-0609/14G |
| T001-0609/16 | 16 | 6×9 | 149.5 | 136.5 | M4 | 5.2 | T001-0609/16B T001-0609/16G |
| T001-0609/18 | 18 | 6×9 | 162.5 | 149.5 | M4 | 5.2 | T001-0609/18B T001-0609/18G |
| T001-0812/4 | 4 | 8×12 | 73.5 | 60.5 | M5 | 6.0 | T001-0812/4B T001-0812/4G |
| T001-0812/6 | 6 | 8×12 | 88.5 | 75.5 | M5 | 6.0 | T001-0812/6B T001-0812/6G |
| T001-0812/8 | 8 | 8×12 | 103.5 | 90.5 | M5 | 6.0 | T001-0812/8B T001-0812/8G |
| T001-0812/10 | 10 | 8×12 | 118.5 | 105.5 | M5 | 6.0 | T001-0812/10B T001-0812/10G |
| T001-0812/12 | 12 | 8×12 | 133.5 | 120.5 | M5 | 6.0 | T001-0812/12B T001-0812/12G |
| T001-0812/14 | 14 | 8×12 | 148.5 | 135.5 | M5 | 6.0 | T001-0812/14B T001-0812/14G |
| T001-0812/16 | 16 | 8×12 | 163.5 | 150.5 | M5 | 6.0 | T001-0812/16B T001-0812/16G |
| T001-0812/18 | 18 | 8×12 | 178.5 | 165.5 | M5 | 6.0 | T001-0812/18B T001-0812/18G |
| Article No. | Ways | Spec. | L1 (mm) | L2 Installation (mm) | M Screws | Ø Diameter | Remark |
|---|---|---|---|---|---|---|---|
| T002-0609/4 | 4 | 6×9 | 74 | 63.5 | M4 | 5.2 | T002-0609/4B T002-0609/4Y |
| T002-0609/6 | 6 | 6×9 | 87 | 76.5 | M4 | 5.2 | T002-0609/6B T002-0609/6Y |
| T002-0609/8 | 8 | 6×9 | 100 | 89.5 | M4 | 5.2 | T002-0609/8B T002-0609/8Y |
| T002-0609/10 | 10 | 6×9 | 113 | 102.5 | M4 | 5.2 | T002-0609/10B T002-0609/10Y |
| T002-0609/12 | 12 | 6×9 | 126 | 115.5 | M4 | 5.2 | T002-0609/12B T002-0609/12Y |
| T002-0609/14 | 14 | 6×9 | 139 | 128 | M4 | 5.2 | T002-0609/14B T002-0609/14Y |
| T002-0609/16 | 16 | 6×9 | 152 | 141.5 | M4 | 5.2 | T002-0609/16B T002-0609/16Y |
| T002-0609/18 | 18 | 6×9 | 165 | 154.5 | M4 | 5.2 | T002-0609/18B T002-0609/18Y |
| T002-0812/4 | 4 | 8×12 | 73 | 60.5 | M5 | 6.0 | T002-0812/4B T002-0812/4Y |
| T002-0812/6 | 6 | 8×12 | 88 | 75.5 | M5 | 6.0 | T002-0812/6B T002-0812/6Y |
| T002-0812/8 | 8 | 8×12 | 103 | 90.5 | M5 | 6.0 | T002-0812/8B T002-0812/8Y |
| T002-0812/10 | 10 | 8×12 | 118 | 105.5 | M5 | 6.0 | T002-0812/10B T002-0812/10Y |
| T002-0812/12 | 12 | 8×12 | 133 | 120.5 | M5 | 6.0 | T002-0812/12B T002-0812/12Y |
| T002-0812/14 | 14 | 8×12 | 148 | 135.5 | M5 | 6.0 | T002-0812/14B T002-0812/14Y |
| T002-0812/16 | 16 | 8×12 | 163 | 150.5 | M5 | 6.0 | T002-0812/16B T002-0812/16Y |
| T002-0812/18 | 18 | 8×12 | 178 | 165.5 | M5 | 6.0 | T002-0812/18B T002-0812/18Y |
| Article No. | Ways | Spec. | L1 (mm) | L2 Installation (mm) | M Screws | Ø Diameter | Remark |
|---|---|---|---|---|---|---|---|
| T003-0609/4 | 4 | 6×9 | 71.5 | 58.5 | M4 | 5.2 | T003-0609/4B T003-0609/4G |
| T003-0609/6 | 6 | 6×9 | 84.5 | 71.5 | M4 | 5.2 | T003-0609/6B T003-0609/6G |
| T003-0609/8 | 8 | 6×9 | 97.5 | 84.5 | M4 | 5.2 | T003-0609/8B T003-0609/8G |
| T003-0609/10 | 10 | 6×9 | 110.5 | 97.5 | M4 | 5.2 | T003-0609/10B T003-0609/10G |
| T003-0609/12 | 12 | 6×9 | 123.5 | 110.5 | M4 | 5.2 | T003-0609/12B T003-0609/12G |
| T003-0609/14 | 14 | 6×9 | 136.5 | 123.5 | M4 | 5.2 | T003-0609/14B T003-0609/14G |
| T003-0609/16 | 16 | 6×9 | 149.5 | 136.5 | M4 | 5.2 | T003-0609/16B T003-0609/16G |
| T003-0609/18 | 18 | 6×9 | 162.5 | 149.5 | M4 | 5.2 | T003-0609/18B T003-0609/18G |
| T003-0812/4 | 4 | 8×12 | 73.5 | 60.5 | M5 | 6.0 | T003-0812/4B T003-0812/4G |
| T003-0812/6 | 6 | 8×12 | 88.5 | 75.5 | M5 | 6.0 | T003-0812/6B T003-0812/6G |
| T003-0812/8 | 8 | 8×12 | 103.5 | 90.5 | M5 | 6.0 | T003-0812/8B T003-0812/8G |
| T003-0812/10 | 10 | 8×12 | 118.5 | 105.5 | M5 | 6.0 | T003-0812/10B T003-0812/10G |
| T003-0812/12 | 12 | 8×12 | 133.5 | 120.5 | M5 | 6.0 | T003-0812/12B T003-0812/12G |
| T003-0812/14 | 14 | 8×12 | 148.5 | 135.5 | M5 | 6.0 | T003-0812/14B T003-0812/14G |
| T003-0812/16 | 16 | 8×12 | 163.5 | 150.5 | M5 | 6.0 | T003-0812/16B T003-0812/16G |
| T003-0812/18 | 18 | 8×12 | 178.5 | 165.5 | M5 | 6.0 | T003-0812/18B T003-0812/18G |
| Article No. | Ways | Spec. | L1 (mm) | L2 Installation (mm) | M Screws | Ø Diameter | Remark |
|---|---|---|---|---|---|---|---|
| T004-0609/4 | 4 | 6×9 | 60.5 | 48.5 | M4 | 6.0 | T004-0609/4B T004-0609/4G |
| T004-0609/6 | 6 | 6×9 | 78 | 65.5 | M4 | 6.0 | T004-0609/6B T004-0609/6G |
| T004-0609/8 | 8 | 6×9 | 95 | 82.5 | M4 | 6.0 | T004-0609/8B T004-0609/8G |
| T004-0609/10 | 10 | 6×9 | 112 | 100 | M4 | 6.0 | T004-0609/10B T004-0609/10G |
| T004-0609/12 | 12 | 6×9 | 129 | 117 | M4 | 6.0 | T004-0609/12B T004-0609/12G |
| T004-0812/4 | 4 | 8×12 | 59.5 | 48.5 | M5 | 7.0 | T004-0812/4B T004-0812/4G |
| T004-0812/6 | 6 | 8×12 | 76.4 | 65.5 | M5 | 7.0 | T004-0812/6B T004-0812/6G |
| T004-0812/8 | 8 | 8×12 | 94 | 82.5 | M5 | 7.0 | T004-0812/8B T004-0812/8G |
| T004-0812/10 | 10 | 8×12 | 111 | 100 | M5 | 7.0 | T004-0812/10B T004-0812/10G |
| T004-0812/12 | 12 | 8×12 | 128 | 117 | M5 | 7.0 | T004-0812/12B T004-0812/12G |
| Article No. | Ways | Spec. | L1 (mm) | L2 Installation (mm) | M Screws | Ø Diameter | Remark |
|---|---|---|---|---|---|---|---|
| T005-0609/4 | 4 | 6×9 | 86 | 35×6 | M4 | 5.2 | T005-0609/4B T005-0609/4Y T005-0609/4G |
| T005-0609/6 | 6 | 6×9 | 86 | 35×6 | M4 | 5.2 | T005-0609/6B T005-0609/6Y T005-0609/6G |
| T005-0609/8 | 8 | 6×9 | 86 | 35×6 | M4 | 5.2 | T005-0609/8B T005-0609/8Y T005-0609/8G |
| T005-0609/10 | 10 | 6×9 | 86 | 35×6 | M4 | 5.2 | T005-0609/10B T005-0609/10Y T005-0609/10G |
| T005-0609/12 | 12 | 6×9 | 87.5 | 35×6 | M4 | 5.2 | T005-0609/12B T005-0609/12Y T005-0609/12G |
| T005-0609/14 | 14 | 6×9 | 98 | 35×6 | M4 | 5.2 | T005-0609/14B T005-0609/14Y T005-0609/14G |
| T005-0609/16 | 16 | 6×9 | 111 | 35×6 | M4 | 5.2 | T005-0609/16B T005-0609/16Y T005-0609/16G |
| T005-0812/4 | 4 | 8×12 | 86 | 35×6 | M5 | 6.0 | T005-0812/4B T005-0812/4Y T005-0812/4G |
| T005-0812/6 | 6 | 8×12 | 86 | 35×6 | M5 | 6.0 | T005-0812/6B T005-0812/6Y T005-0812/6G |
| T005-0812/8 | 8 | 8×12 | 86 | 35×6 | M5 | 6.0 | T005-0812/8B T005-0812/8Y T005-0812/8G |
| T005-0812/10 | 10 | 8×12 | 86 | 35×6 | M5 | 6.0 | T005-0812/10B T005-0812/10Y T005-0812/10G |
| T005-0812/12 | 12 | 8×12 | 101 | 35×6 | M5 | 6.0 | T005-0812/12B T005-0812/12Y T005-0812/12G |
| T005-0812/14 | 14 | 8×12 | 116 | 35×6 | M5 | 6.0 | T005-0812/14B T005-0812/14Y T005-0812/14G |
| T005-0812/16 | 16 | 8×12 | 131 | 35×6 | M5 | 6.0 | T005-0812/16B T005-0812/16Y T005-0812/16G |
| Article No. | Ways | Spec. | L1 (mm) | L2 Installation (mm) | M Screws | Ø Diameter | Remark |
|---|---|---|---|---|---|---|---|
| T006-0609/7 | 7 | 6×9 | 50 | 35×8.5 | M5 | 5.5 | T006-0609/7B T006-0609/7G |
| T006-0609/8 | 8 | 6×9 | 60 | 35×8.5 | M5 | 5.5 | T006-0609/8B T006-0609/8G |
| T006-0609/10 | 10 | 6×9 | 73 | 35×8.5 | M5 | 5.5 | T006-0609/10B T006-0609/10G |
| T006-0609/12 | 12 | 6×9 | 86 | 35×8.5 | M5 | 5.5 | T006-0609/12B T006-0609/12G |
| T006-0609/13 | 13 | 6×9 | 90.5 | 35×8.5 | M5 | 5.5 | T006-0609/13B T006-0609/13G |
| T006-0609/15 | 15 | 6×9 | 105.5 | 35×8.5 | M5 | 5.5 | T006-0609/15B T006-0609/15G |
| T006-0609/16 | 16 | 6×9 | 112 | 35×8.5 | M5 | 5.5 | T006-0609/16B T006-0609/16G |
| T006-0609/18 | 18 | 6×9 | 125 | 35×8.5 | M5 | 5.5 | T006-0609/18B T006-0609/18G |
| T006-0609/20 | 20 | 6×9 | 138 | 35×8.5 | M5 | 5.5 | T006-0609/20B T006-0609/20G |
| T006-0609/24 | 24 | 6×9 | 164 | 35×8.5 | M5 | 5.5 | T006-0609/24B T006-0609/24G |
| Article No. | Ways | Spec. | L1 (mm) | L2 Installation (mm) | M Screws | Ø Diameter | Remark |
|---|---|---|---|---|---|---|---|
| T007-0609/6 | 6 | 6×9 | 60.5 | 35×6 | M4 | 5.0 | T007-0609/6B T007-0609/6G |
| T007-0609/7 | 7 | 6×9 | 60.5 | 35×6 | M4 | 5.0 | T007-0609/7B T007-0609/7G |
| T007-0609/8 | 8 | 6×9 | 60.5 | 35×6 | M4 | 5.0 | T007-0609/8B T007-0609/8G |
| T007-0609/10 | 10 | 6×9 | 69 | 35×6 | M4 | 5.0 | T007-0609/10B T007-0609/10G |
| T007-0609/12 | 12 | 6×9 | 81 | 35×6 | M4 | 5.0 | T007-0609/12B T007-0609/12G |
| T007-0609/14 | 14 | 6×9 | 93 | 35×6 | M4 | 5.0 | T007-0609/14B T007-0609/14G |
| T007-0609/16 | 16 | 6×9 | 105 | 35×6 | M4 | 5.0 | T007-0609/16B T007-0609/16G |
| Article No. | Ways | Spec. | L1 (mm) | L2 Installation (mm) | M Screws | Ø Diameter |
|---|---|---|---|---|---|---|
| T008-0710/3 | 3 | 7×10 | 59.5 | 49.5 | M5 | 6.5 |
| T008-0710/4 | 4 | 7×10 | 67.5 | 57.5 | M5 | 6.5 |
| T008-0710/5 | 5 | 7×10 | 75.5 | 65.5 | M5 | 6.5 |
| T008-0710/6 | 6 | 7×10 | 83.5 | 73.5 | M5 | 6.5 |
| T008-0710/7 | 7 | 7×10 | 91.5 | 81.5 | M5 | 6.5 |
| T008-0710/8 | 8 | 7×10 | 99.5 | 89.5 | M5 | 6.5 |
| T008-0710/10 | 10 | 7×10 | 115.5 | 105.5 | M5 | 6.5 |
| T008-0710/12 | 12 | 7×10 | 131.5 | 121.5 | M5 | 6.5 |
| T008-0710/15 | 15 | 7×10 | 155.5 | 145.5 | M5 | 6.5 |
| Article No. | Ways | Spec. | L1 (mm) | L2 Installation (mm) | M Screws | Ø Diameter | Remark |
|---|---|---|---|---|---|---|---|
| T009-0609/6 | 6 | 6×9 | 57.5 | 50.5 | M4 | 5.0 | T009-0609/6B T009-0609/6G Green |
| T009-0609/8 | 8 | 6×9 | 78 | 67 | M4 | 5.0 | T009-0609/8B T009-0609/8G Green |
| T009-0609/10 | 10 | 6×9 | 90.5 | 80 | M4 | 5.0 | T009-0609/10B T009-0609/10G Green |
| T009-0609/12 | 12 | 6×9 | 104 | 92 | M4 | 5.0 | T009-0609/12B T009-0609/12G Green |
| T009-0812/6 | 6 | 8×12 | 77 | 64.5 | M5 | 7.0 | T009-0812/6B T009-0812/6G Green |
| T009-0812/8 | 8 | 8×12 | 94.5 | 80 | M5 | 7.0 | T009-0812/8B T009-0812/8G Green |
| T009-0812/10 | 10 | 8×12 | 111 | 98.36 | M5 | 7.0 | T009-0812/10B T009-0812/10G Green |
| T009-0812/12 | 12 | 8×12 | 127.5 | 115.3 | M5 | 7.0 | T009-0812/12B T009-0812/12G Green |
| T009-0812/14 | 14 | 8×12 | 144.5 | 132.3 | M5 | 7.0 | T009-0812/14B T009-0812/14G Green |
| T009-0812/16 | 16 | 8×12 | 163 | 150.7 | M5 | 7.0 | T009-0812/16B T009-0812/16G Green |
| Article No. | Ways | Spec. | L1 (mm) | L2 Installation (mm) | M Screws | Ø Diameter | Remark |
|---|---|---|---|---|---|---|---|
| T010-0609/6 | 6 | 6×9 | 60.5 | 35×6 | M4 | 5.0 | T010-0609/6B T010-0609/6G |
| T010-0609/7 | 7 | 6×9 | 60.5 | 35×6 | M4 | 5.0 | T010-0609/7B T010-0609/7G |
| T010-0609/8 | 8 | 6×9 | 60.5 | 35×6 | M4 | 5.0 | T010-0609/8B T010-0609/8G |
| T010-0609/10 | 10 | 6×9 | 69 | 35×6 | M4 | 5.0 | T010-0609/10B T010-0609/10G |
| T010-0609/12 | 12 | 6×9 | 81 | 35×6 | M4 | 5.0 | T010-0609/12B T010-0609/12G |
| T010-0609/14 | 14 | 6×9 | 93 | 35×6 | M4 | 5.0 | T010-0609/14B T010-0609/14G |
| T010-0609/16 | 16 | 6×9 | 105 | 35×6 | M4 | 5.0 | T010-0609/16B T010-0609/16G |
Why Choose Willele
Willele designs and manufactures precision-engineered brass terminal blocks that ensure safe, reliable, and efficient power distribution in industrial, commercial, and automation systems.
From earth and neutral bars to multi-way distribution terminals, Willele provides complete solutions for clean, durable, and RoHS-compliant electrical connections.
- Certified Quality & Materials
- Each terminal block is machined from high-conductivity brass with nickel or tin plating to prevent oxidation.
All models meet IEC and UL standards for mechanical strength, insulation resistance, and long-term performance under load or vibration. - Comprehensive Product Range
The Willele series covers a wide range of configurations—4 to 24 ways, M4/M5 screw sizes, and multiple bar dimensions (6×9 mm, 8×12 mm, etc.).
Compatible with DIN rail or base mounting, these terminal blocks fit diverse applications from control panels to busbar systems. - Engineered for Reliability
Precision screw threads and hardened inserts ensure tight, repeatable clamping with minimal contact resistance.
Tested for high torque, corrosion resistance, and temperature stability to guarantee long-service life in harsh environments. - Easy Installation & Custom Options
Designed for fast assembly and wiring clarity, each block supports color-coded insulators (blue/green) for neutral or earth identification.
OEM customization is available for length, hole pitch, or plating type.
Brass Terminal Blocks for Safe and Efficient Power Distribution
Willele supplies a comprehensive range of brass terminal blocks engineered for reliable power and grounding connections in control panels, switchboards, and automation systems.
Each bar is made from high-conductivity brass for minimal voltage drop and long-term stability under heat, vibration, and mechanical stress.
The range includes neutral and earth bars from 4 to 24 ways, equipped with M4 or M5 screws, available in various bar sizes such as 6×9 mm, 7×10 mm, 8×12 mm, 35×6 mm, and 35×8.5 mm.
Compliant with IEC / RoHS / CE standards, Willele’s brass terminal blocks ensure low contact resistance, corrosion resistance, and clean professional wiring layouts for both OEM and field installations.
Neutral & Earth Bars
Our neutral and earth brass bars are designed for safe current distribution and reliable earthing in electrical panels.
Color-coded blue and green insulators simplify circuit identification and minimize wiring errors.
Available in multiple configurations (7–24 ways), they offer tight clamping force, anti-oxidation plating, and DIN-rail or panel mounting options.
Brass Distribution Blocks
Willele’s brass distribution blocks combine compact structure with excellent conductivity.
Precision-machined screw threads and flat seating surfaces guarantee consistent torque and stable electrical contact.
Ideal for control cabinets, power junctions, and industrial automation equipment requiring durable, low-loss connections.
OEM & Value Pack Options
For cabinet manufacturers and maintenance teams, Willele provides ready-assembled terminal block sets and custom options.
You can specify bar length, hole spacing, way count, plating, or insulation color to match project requirements.
Bulk packaging and labeling options help streamline on-site assembly and spare-part management.
More Than a Brass Terminal Block Manufacturer
We don’t just supply terminal bars — we help you build safer, more efficient power distribution systems.
From precise engineering customization to fast export support, WILLELE ensures your control panels perform reliably in every environment.
Expert Consultation
From switchboard design to control cabinet wiring, our engineers evaluate current ratings, wire sizes, and grounding schemes to recommend the best brass terminal block configuration.
We assist in selecting between neutral and earth bars, M4 or M5 screws, and 6×9 / 7×10 / 8×12 / 35×6 mm busbar sizes, ensuring compliance with panel layout and electrical standards.
Product Selection Recommendations
We provide exact part matching based on way count, mounting type, and installation dimensions.
Our experts help you choose between DIN-rail mounted, panel-fixed, or custom-length bars, with options for color-coded insulation (blue/green) and surface treatments for enhanced corrosion protection.
Specification confirmation is typically completed within 12 hours.
Logistics & Shipping Support
We handle full CE / RoHS export documentation, labeling, and custom packaging for global distribution.
Orders are available in bulk cartons or OEM-labeled sets, with neutral export boxes for distributors.
All brass bars are securely packed with anti-oxidation coating and traceable labeling for easy warehouse management.
Guidance & Support
During installation, we provide assistance on torque settings, wiring sequence, and grounding verification to ensure consistent electrical contact.
For OEM and high-volume users, WILLELE offers on-site training, customized drawings, and product marking options, ensuring every connection is safe, repeatable, and fully IEC compliant.
Brass Terminal Blocks — Frequently Asked Questions
Answers to common questions about neutral bars, earth bars, screw sizes, and installation of brass terminal blocks in electrical panels.
What is a brass terminal block and where is it used?
What’s the difference between neutral and earth bars?
How do I choose the correct brass terminal block size?
What materials and finishes are used in Willele brass bars?
Can brass terminal blocks be mounted on DIN rails?
What screw types and torque values are recommended?
Do Willele brass terminal blocks comply with IEC standards?
Can brass terminal blocks be customized?
Does Willele offer neutral and earth bar sets for distribution panels?
What Are Brass Terminal Blocks & Neutral Bars?
Brass terminal blocks are power distribution components designed to connect multiple wires within electrical panels or switchboards. Each block is made of solid brass for high conductivity and corrosion resistance, typically mounted on insulated bases for neutral or earth wiring. WILLELE supplies a full range of neutral bars, earth bars, and distribution blocks for industrial, commercial, and residential power systems.
Material & Construction
Brass Bars: Manufactured from high-purity brass (CuZn39Pb3 or equivalent) to ensure low contact resistance and long mechanical life.
Insulating Base: Molded from flame-retardant PA or PVC materials with high dielectric strength, providing reliable isolation and color coding (blue for neutral, green for earth).
Screws & Fixings: Available with M4, M5, or M6 steel screws for secure cable clamping, compatible with copper or tinned conductors.
Common Configurations
- Neutral Bars: Used for current return paths in power distribution systems.
- Earth Bars: Serve as grounding points to ensure personnel and equipment safety.
- Combined N+E Assemblies: Dual-bar modules integrating both neutral and earth connections on one insulated base.
- Single & Multi-Way Types: Ranging from 4 to 24 ways, accommodating a variety of circuit capacities.
Mounting Options
- DIN Rail Mounted: For modular distribution boards and control cabinets.
- Panel Mounted: Directly fixed on chassis or copper busbars with mounting holes.
- Custom Assemblies: WILLELE supports special spacing, hole patterns, or terminal arrangements for OEM applications.
Standards & Compliance
- Standards: WILLELE brass terminal blocks comply with IEC 60947-7-1 for low-voltage terminal blocks, ensuring safety and performance.
- Certifications: Products meet CE, RoHS, and ISO manufacturing standards.
- Testing: Each lot undergoes torque, insulation, and contact resistance testing for quality assurance.
Applications
- Distribution boards and switchgear assemblies for power and control systems.
- Neutral and grounding terminals in industrial automation cabinets.
- Residential and commercial electrical panels using blue and green insulated bases for quick identification.
- Renewable energy and solar PV junction boxes with multi-way brass blocks for DC bus coupling.
Selection Guidelines
- Choose based on rated current and wire cross-section (mm²).
- Confirm screw type (M4/M5) and hole spacing for compatibility with your panel layout.
- Use DIN rail terminal blocks when modular installation is required.
- Ensure matching insulation color and conductor type for neutral and earth wiring.
Maintenance & Safety
- Tighten screws to recommended torque to avoid overheating or loose connections.
- Check periodically for oxidation or mechanical wear, especially in humid or corrosive environments.
- Replace any damaged insulator bases immediately to maintain safe clearance distances.
- Keep wiring organized using modular terminal blocks or heat shrink tubing for insulation protection.
OEM & Custom Manufacturing
WILLELE provides full OEM and ODM support for brass terminal blocks, including custom hole patterns, printed labeling, and special coatings. We also offer RoHS documentation, batch traceability, and private-label packaging for distributors and panel builders worldwide. Contact our team for detailed technical drawings or prototype sampling.