Description
BS88 Fuse Holders are designed to accommodate compatible fuse links in low-voltage electrical distribution and circuit protection systems. The FM series includes multiple current ratings and wiring configurations to meet the requirements of electrical distribution boards, control panels and industrial equipment.
CWNE offers FM20, FM32, FM63, FM100 and FM200 series fuse holders, covering rated currents from 20A to 200A. The available rated voltage specifications are 415V, 500V and 550V.
Different models are designed for use with NIT, TIA, TIS, OS, TCP and TFP fuse links, depending on the holder configuration. H and BW versions provide different wiring arrangements, allowing customers to select a suitable model according to their equipment requirements.
These BS88 Fuse Holders are suitable for electrical distributors, panel builders, industrial equipment manufacturers and OEM procurement.
Key Features
- Multiple Current Ratings: Available in 20A, 32A, 63A, 100A and 200A configurations.
- Rated Voltage Options: 415V, 500V and 550V.
- Compatible Fuse Links: Supports specified NIT, TIA, TIS, OS, TCP and TFP fuse link types.
- Different Wiring Options: H and BW connection arrangements.
- Multiple Mounting Dimensions: Different physical dimensions to match installation requirements.
- Industrial Applications: Suitable for low-voltage electrical distribution and fuse protection assemblies.
Technical Specifications
| Parameter | Specification |
|---|---|
| Product Type | BS88 Fuse Holders |
| Series | FM20 / FM32 / FM63 / FM100 / FM200 |
| Rated Voltage | 415V / 500V / 550V |
| Rated Current | 20A / 32A / 63A / 100A / 200A |
| Compatible Fuse Links | NIT / TIA / TIS / OS / TCP / TFP |
| Wiring Configurations | H / BW |
| Application | Low-Voltage Electrical Distribution |
Available Models and Fuse Link Compatibility
| Model | Rated Current | Compatible Fuse Link |
|---|---|---|
| FM20H | 20A | NIT |
| FM20BW | 20A | NIT |
| FM32H | 32A | NIT |
| FM32BW | 32A | NIT |
| FM63H | 63A | TIA / TIS |
| FM63BW | 63A | TIA / TIS |
| FM100H | 100A | TIS / OS |
| FM100BW | 100A | TIS / OS |
| FM200H | 200A | TCP / TFP |
| FM200BW | 200A | TCP / TFP |
All listed models have rated voltage specifications of 415V, 500V and 550V.
Wiring Configuration:
- H: Side wiring arrangement.
- BW: Bottom wiring arrangement.
Select the required model according to the rated current, compatible fuse link and installation configuration.
Model and Dimensional Specifications

The following dimensions are based on the FM series dimensional drawings. All dimensions are in millimeters (mm).
| Model Group | A | E | H | H1 | M | E1 |
|---|---|---|---|---|---|---|
| FM20H / FM20BW | 80 | 27 | 54 | 37 | M5 | 14 |
| FM32H / FM32BW | 104 | 31.5 | 70 | 49 | 2-M5 | 15 |
| FM63H / FM63BW | 109 | 34 | 75 | 54 | 2-M5 | 15 |
| FM100H / FM100BW | 140 | 50 | 100 | 75 | 2-M6 | 16 |
| FM200H / FM200BW | 218 | 70 | 137 | 100 | 2-M6 | 22 |
The drawing illustrates the H/BW configuration and identifies the protective cover and mounting structure. Confirm the relevant dimensions and connection arrangement before installation.
Applications
BS88 Fuse Holders are suitable for low-voltage electrical installations requiring compatible fuse link mounting and electrical connections.
Electrical Distribution Boards
Used in distribution assemblies requiring appropriate fuse protection components.
Industrial Control Panels
Suitable for electrical control systems where compatible BS88 fuse holders are required.
Low-Voltage Switchgear
Designed for integration into compatible low-voltage switchgear and power distribution assemblies.
Industrial Equipment Manufacturing
Suitable for panel builders and equipment manufacturers requiring different current ratings and wiring arrangements.
How to Choose the Right BS88 Fuse Holder
Step 1: Confirm the Required Current Rating
Select the appropriate series according to the electrical system requirements:
- FM20: 20A
- FM32: 32A
- FM63: 63A
- FM100: 100A
- FM200: 200A
Step 2: Check Fuse Link Compatibility
Different models are designed for different fuse links.
For example, FM20 and FM32 models are compatible with NIT fuse links, while FM200 models are designed for TCP and TFP fuse links.
Step 3: Select the Wiring Configuration
Choose the H or BW version according to the required wiring arrangement.
H models use side wiring, while BW models use bottom wiring.
Step 4: Verify Installation Dimensions
Compare the mounting dimensions, connection specifications and available installation space before ordering.
Step 5: Confirm the Electrical Requirements
Ensure that the selected holder and compatible fuse link meet the system’s voltage, current and protection requirements.
Why Choose CWNE?
CWNE supplies low-voltage electrical protection components for electrical distributors, equipment manufacturers and panel builders.
- Multiple Product Specifications: Fuse holders available in different current ratings and configurations.
- Compatible Product Supply: Fuse links and fuse holders for different electrical protection applications.
- B2B Procurement Support: Suitable for distributors, wholesalers and industrial customers.
- Technical Assistance: Support for model selection and specification confirmation.
- Bulk Order Inquiries: Product and quotation support for project and purchasing requirements.
FAQ
What models are available in the BS88 FM series fuse holders?
The series includes FM20H, FM20BW, FM32H, FM32BW, FM63H, FM63BW, FM100H, FM100BW, FM200H and FM200BW.
What current ratings are available?
The available rated currents are 20A, 32A, 63A, 100A and 200A.
Which fuse links are compatible with these holders?
Compatibility depends on the model. FM20 and FM32 support NIT fuse links, FM63 supports TIA/TIS, FM100 supports TIS/OS, and FM200 supports TCP/TFP.
What is the difference between H and BW fuse holders?
H indicates a side wiring configuration, while BW indicates a bottom wiring configuration.
How can I select the correct BS88 fuse holder?
Check the rated voltage, current rating, compatible fuse link, wiring arrangement and installation dimensions before choosing a model.
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