Bushings
Termate’s range of through bushings are designed to allow conductors to pass through enclosure walls, enabling form 3 or form 4 enclosure separation in compliance with BS EN IEC 61439-2.
The both designs accept up to four different conductor sizes. From 3 mm and 10 mm thick. Insulated boots for both sizes are available for added IP protection.
B4-30
B4-50
| Part Number | 3D Model | Conductor sizes (mm) | Ue (AC/DC) | Ui (AC/DC) | Uimp |
|---|---|---|---|---|---|
| B4-30 | B4-30 STEP file | 20×3, 20×4, 30×5, 30×10 | 690 V | 690 V | 8 kV |
| B4-50 | B4-50 STEP file | 25×5, 20×10, 40×10, 50×10 | 500 V | 500 V | 8 kV |
B4-30 Bushings—Punching Details
B4-50 Bushings—Punching Details
Common Technical Information (B4-30 & B4-50)
- Material: Glass Reinforced Polyamide 6.6
- Conductor Temp.: 140 °C†
- Flammability: UL 94 V-0
- Glow Wire: 960 °C
† In line with the limits set out in IEC 61439, insulating components in contact with conductors may be required to continuously operate at an average of 140 °C (max 145 °C).
This range of products meets the requirement, the material for them being assigned thermal class F established using methods similar to IEC 60085
B4-30Boot
B4-30S-Boot
B4-50BOOT
| Part Number | 3D Model | Description | Max. Cable size (mm²) |
|---|---|---|---|
| B4-30BOOT | B4-30BOOT STEP file | Angled Boot for B4-30 | 1×300 2×240 |
| B4-30S-BOOT | B4-30S-BOOT STEP file | Straight Boot for B4-30 | 1×300 |
| B4-50BOOT | B4-50BOOT STEP file | Angled Boot for B4-50 | 1×500 2×300 |
Boot Properties
- Boot Material: Black PVC
- Operating Temp.: Max. 90 °C continuous
- Flammability: UL 94 V-0
- Glow Wire: 650 °C
B4-30 Bushings—Versatility
B4-50 Bushings—Versatility
