Part intelligence record
BBB32F1
British Standard Fuse-Holder F1 Back-Back 550VAC Black
Confidence
This is a curated canonical record with claim-level source locators; it is not a substitution guarantee.
Review basis
8 explicit claims retained from the reviewed record.
Supporting sources
3unique sources
- Mersen: MERSEN BS88 Cross Reference 20254 covered claims · Review: ReviewedPublication: version-known-date-unknown · Not statedLocators: Mersen BS88 Cross Reference 2025 — Mersen holder reference BBB32F1 · Mersen BS88 Cross Reference 2025 — holder family F1 · +2 more
- Mersen: BS Fuse-holders1 covered claim · Review: ReviewedPublication: version-known-date-unknown · Not statedLocators: Mersen BS Fuse-holders — F1 dimensional drawing
- Mersen: N239120 - BBB32F13 covered claims · Review: ReviewedPublication: date-and-version-not-stated · Not statedLocators: Mersen product listing — rated current for BBB32F1 · Mersen product listing — rated voltage for BBB32F1 · +1 more
Limitations
- Mounting configuration: unknown — not stated in the attached source set
- Terminals: unknown — not stated in the attached source set
- Compatible fuse range: unknown — not stated in the attached source set
- Application fit: Confirm electrical, mechanical and application requirements before substitution.
A source trail or cross-reference documents a relationship; it is not substitution approval.
Identity and evidence hierarchy
What this record actually establishes
Submitted manufacturer
Mersen
Submitted part number
BBB32F1
Normalized manufacturer
MERSEN
Normalized part number
BBB32F1
Category
BS88 low-voltage industrial fuse holders
Component type
unknown — not stated
Documented status
source-listed
Strongest evidence
Manufacturer-published source record
Relationships
3 recorded
This is a curated canonical record with claim-level source locators; it is not a substitution guarantee.
Rights-cleared media library
Exact photographs, representative family images, and technical drawings remain labelled by what the source actually supports. A family image is never presented as an exact-part photograph.
Image coverage
No exact-part photograph is currently rights-cleared for this record. Any image below is representative evidence only.

Closed industrial fuse holder beside a 100 ampere cartridge fuse; representative family image, not a Mersen BBB32F1 photograph.
Scope: Representative industrial fuse-and-holder assembly; not an exact Mersen part.
Attribution: Zureks / Encyclopedia Magnetica
Zureks via Wikimedia Commons: Fuse 100A with holder, closedLocator: Commons file page; closed 100A fuse and holder photograph.
Review: reviewed · Rights: cleared
Source part attributes
Normalized technical values
| Attribute | Recorded value | Supporting source |
|---|---|---|
| Fuse-holder family | F1 | Mersen: MERSEN BS88 Cross Reference 2025Mersen BS88 Cross Reference 2025 — holder family F1 |
| Connection configuration | Back-back | Mersen: MERSEN BS88 Cross Reference 2025Mersen BS88 Cross Reference 2025 — BBB32F1 connection column |
| Colour | Black | Mersen: MERSEN BS88 Cross Reference 2025Mersen BS88 Cross Reference 2025 — BBB32F1 colour column |
| Current rating | 32 A | Mersen: N239120 - BBB32F1Mersen product listing — rated current for BBB32F1 |
| Voltage | 550 VAC | Mersen: N239120 - BBB32F1Mersen product listing — rated voltage for BBB32F1 |
| Dimensions | A 75.5 × B 26.5 × C 54 × D 41.5 × F 40 × G 17 × H 9.7 × I 58 × J 5.6 mm | Mersen: BS Fuse-holdersMersen BS Fuse-holders — F1 dimensional drawing |
| Mounting configuration | unknown — not stated in the attached source set | No source locator is attached to this field. |
| Terminals | unknown — not stated in the attached source set | No source locator is attached to this field. |
| Compatible fuse range | unknown — not stated in the attached source set | No source locator is attached to this field. |
Relationship register
Published relationships
3 recorded relationship(s)
Published cross-reference
Relationship: Manufacturer cross-reference
Confidence: high
Why this relationship is present
The attached source explicitly lists this relationship in MERSEN BS88 Cross Reference 2025.
Row-aligned comparison
Alternative values are shown only when the attached relationship claims explicitly document them.
| Attribute | Source part | Alternative | State |
|---|---|---|---|
| Fuse-holder family | F1 | unknown — not documented | unknown |
| Connection configuration | Back-back | unknown — not documented | unknown |
| Colour | Black | unknown — not documented | unknown |
| Current rating | 32 A | unknown — not documented | unknown |
| Voltage | 550 VAC | unknown — not documented | unknown |
| Dimensions | A 75.5 × B 26.5 × C 54 × D 41.5 × F 40 × G 17 × H 9.7 × I 58 × J 5.6 mm | unknown — not documented | unknown |
| Mounting configuration | unknown — not stated in the attached source set | unknown — not documented | unknown |
| Terminals | unknown — not stated in the attached source set | unknown — not documented | unknown |
| Compatible fuse range | unknown — not stated in the attached source set | unknown — not documented | unknown |
Documented technical differences
No explicit technical differences are documented in the relationship claims.
Application fit requires engineering confirmation.
Application fit: Confirm electrical, mechanical and application requirements before substitution.
Relationship provenance
Trace this relationship to its published source citation.
Locator: Mersen BS88 Cross Reference 2025 — BBB32F1 row
Publication: version-known-date-unknown
Version: 2025
Publication date: Not stated
Retrieved: 12 Sept 2026
Document locator: Document title and cross-reference table rows.
Published cross-reference
Relationship: Manufacturer cross-reference
Confidence: high
Why this relationship is present
The attached source explicitly lists this relationship in MERSEN BS88 Cross Reference 2025.
Row-aligned comparison
Alternative values are shown only when the attached relationship claims explicitly document them.
| Attribute | Source part | Alternative | State |
|---|---|---|---|
| Fuse-holder family | F1 | unknown — not documented | unknown |
| Connection configuration | Back-back | unknown — not documented | unknown |
| Colour | Black | unknown — not documented | unknown |
| Current rating | 32 A | unknown — not documented | unknown |
| Voltage | 550 VAC | unknown — not documented | unknown |
| Dimensions | A 75.5 × B 26.5 × C 54 × D 41.5 × F 40 × G 17 × H 9.7 × I 58 × J 5.6 mm | unknown — not documented | unknown |
| Mounting configuration | unknown — not stated in the attached source set | unknown — not documented | unknown |
| Terminals | unknown — not stated in the attached source set | unknown — not documented | unknown |
| Compatible fuse range | unknown — not stated in the attached source set | unknown — not documented | unknown |
Documented technical differences
No explicit technical differences are documented in the relationship claims.
Application fit requires engineering confirmation.
Application fit: Confirm electrical, mechanical and application requirements before substitution.
Relationship provenance
Trace this relationship to its published source citation.
Locator: Mersen BS88 Cross Reference 2025 — BBB32F1 row
Publication: version-known-date-unknown
Version: 2025
Publication date: Not stated
Retrieved: 12 Sept 2026
Document locator: Document title and cross-reference table rows.
Published cross-reference
Relationship: Manufacturer cross-reference
Confidence: high
Why this relationship is present
The attached source explicitly lists this relationship in MERSEN BS88 Cross Reference 2025.
Row-aligned comparison
Alternative values are shown only when the attached relationship claims explicitly document them.
| Attribute | Source part | Alternative | State |
|---|---|---|---|
| Fuse-holder family | F1 | unknown — not documented | unknown |
| Connection configuration | Back-back | unknown — not documented | unknown |
| Colour | Black | unknown — not documented | unknown |
| Current rating | 32 A | unknown — not documented | unknown |
| Voltage | 550 VAC | unknown — not documented | unknown |
| Dimensions | A 75.5 × B 26.5 × C 54 × D 41.5 × F 40 × G 17 × H 9.7 × I 58 × J 5.6 mm | unknown — not documented | unknown |
| Mounting configuration | unknown — not stated in the attached source set | unknown — not documented | unknown |
| Terminals | unknown — not stated in the attached source set | unknown — not documented | unknown |
| Compatible fuse range | unknown — not stated in the attached source set | unknown — not documented | unknown |
Documented technical differences
No explicit technical differences are documented in the relationship claims.
Application fit requires engineering confirmation.
Application fit: Confirm electrical, mechanical and application requirements before substitution.
Relationship provenance
Trace this relationship to its published source citation.
Locator: Mersen BS88 Cross Reference 2025 — BBB32F1 row
Publication: version-known-date-unknown
Version: 2025
Publication date: Not stated
Retrieved: 12 Sept 2026
Document locator: Document title and cross-reference table rows.
Component relationships
Matching components
A complementary component is listed separately from an alternative or cross-reference. This relationship does not establish interchangeability or application approval.
No complementary components are attached to this record.
Why this match
Identity first, relationship second.
The submitted manufacturer and part number resolve directly to the curated canonical record after normalization.
The record carries manufacturer-published source record and claim-level source locators. That evidence describes the record; it does not by itself guarantee substitution.
What to verify before substitution
Close the explicit gaps.
- Mounting configuration: the source set does not document a value.
- Terminals: the source set does not document a value.
- Compatible fuse range: the source set does not document a value.
- Application fit: Confirm electrical, mechanical and application requirements before substitution.
- Application fit: Confirm electrical, mechanical and application requirements before substitution.
- Application fit: Confirm electrical, mechanical and application requirements before substitution.
- Do not treat a cross-reference classification as a substitution approval; confirm the application against the cited sources.
Evidence provenance
Why this record is trusted
Sources are grouped by publication so you can inspect the record review, every covered claim, and the exact locators behind it without returning to lookup.
This is a curated canonical record with claim-level source locators; it is not a substitution guarantee.
Claim locators:
- Mersen BS88 Cross Reference 2025 — Mersen holder reference BBB32F1
- Mersen BS88 Cross Reference 2025 — holder family F1
- Mersen BS88 Cross Reference 2025 — BBB32F1 connection column
- Mersen BS88 Cross Reference 2025 — BBB32F1 colour column
Publication: version-known-date-unknown
Version: 2025
Publication date: Not stated
Retrieved: 12 Sept 2026
Document locator: Document title and cross-reference table rows.
Covered stored claims
Source review: Reviewed
Part Identity
BBB32F1
Locator: Mersen BS88 Cross Reference 2025 — Mersen holder reference BBB32F1
Holder Family
F1
Locator: Mersen BS88 Cross Reference 2025 — holder family F1
Connection Configuration
Back-back
Locator: Mersen BS88 Cross Reference 2025 — BBB32F1 connection column
Colour
Black
Locator: Mersen BS88 Cross Reference 2025 — BBB32F1 colour column
Locator: Mersen BS Fuse-holders — F1 dimensional drawing
Publication: version-known-date-unknown
Version: DS-Low-Voltage-Gen-Purpose-BS-Fuse-Holders-EN
Publication date: Not stated
Retrieved: 12 Sept 2026
Document locator: Electrical characteristics and dimensional drawings.
Covered stored claims
Source review: Reviewed
Dimensions
A 75.5 × B 26.5 × C 54 × D 41.5 × F 40 × G 17 × H 9.7 × I 58 × J 5.6 mm
Locator: Mersen BS Fuse-holders — F1 dimensional drawing
Claim locators:
- Mersen product listing — rated current for BBB32F1
- Mersen product listing — rated voltage for BBB32F1
- Mersen product page — title for BBB32F1
Publication: date-and-version-not-stated
Version: Not stated
Publication date: Not stated
Retrieved: 12 Sept 2026
Document locator: Product page title and technical listing.
Covered stored claims
Source review: Reviewed
Current rating
32 A
Locator: Mersen product listing — rated current for BBB32F1
Voltage Rating
550 VAC
Locator: Mersen product listing — rated voltage for BBB32F1
Product Description
British Standard Fuse-Holder F1 Back-Back 550VAC Black
Locator: Mersen product page — title for BBB32F1