Part intelligence record
BFF63F2
British Standard Fuse-Holder F2 Front-Front 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 BFF63F2 · Mersen BS88 Cross Reference 2025 — holder family F2 · +2 more
- Mersen: BS Fuse-holders1 covered claim · Review: ReviewedPublication: version-known-date-unknown · Not statedLocators: Mersen BS Fuse-holders — F2 dimensional drawing
- Mersen: S239124 - BFF63F23 covered claims · Review: ReviewedPublication: date-and-version-not-stated · Not statedLocators: Mersen product listing — rated current for BFF63F2 · Mersen product listing — rated voltage for BFF63F2 · +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
BFF63F2
Normalized manufacturer
MERSEN
Normalized part number
BFF63F2
Category
BS88 low-voltage industrial fuse holders
Component type
unknown — not stated
Documented status
source-listed
Strongest evidence
Manufacturer-published source record
Relationships
4 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.

Black fuseholders with transparent lids for through-hole mounting; representative fuse-holder family image, not a BS88 exact-part photograph.
Scope: Representative fuse-holder component reference; not an exact Mersen part.
Attribution: Attribution not required; courtesy credit to Retired electrician via Wikimedia Commons.
Retired electrician via Wikimedia Commons: Fuseholder with clear lid for PCB 01Locator: Commons file page; captioned “Fuseholders for PCB through-hole mount”.
Review: reviewed · Rights: cleared

White ceramic two-pole fuse-holder body with exposed metal contacts and a central pull handle; representative historical fuse-holder family image, not a Mersen BFF63F2 photograph.
Scope: Representative historical fuse-holder family; not an exact Mersen part.
Attribution: Auckland Museum
Auckland Museum via Wikimedia Commons: Fuse holder (AM 14911-2)Locator: Commons file page; Auckland Museum object AM 14911.
Review: reviewed · Rights: cleared
Source part attributes
Normalized technical values
| Attribute | Recorded value | Supporting source |
|---|---|---|
| Fuse-holder family | F2 | Mersen: MERSEN BS88 Cross Reference 2025Mersen BS88 Cross Reference 2025 — holder family F2 |
| Connection configuration | Front-front | Mersen: MERSEN BS88 Cross Reference 2025Mersen BS88 Cross Reference 2025 — BFF63F2 connection column |
| Colour | Black | Mersen: MERSEN BS88 Cross Reference 2025Mersen BS88 Cross Reference 2025 — BFF63F2 colour column |
| Current rating | 63 A | Mersen: S239124 - BFF63F2Mersen product listing — rated current for BFF63F2 |
| Voltage | 550 VAC | Mersen: S239124 - BFF63F2Mersen product listing — rated voltage for BFF63F2 |
| Dimensions | A 89 × B 28.5 × C 64 × D 48.6 × E 9 mm | Mersen: BS Fuse-holdersMersen BS Fuse-holders — F2 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
4 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 | F2 | unknown — not documented | unknown |
| Connection configuration | Front-front | unknown — not documented | unknown |
| Colour | Black | unknown — not documented | unknown |
| Current rating | 63 A | unknown — not documented | unknown |
| Voltage | 550 VAC | unknown — not documented | unknown |
| Dimensions | A 89 × B 28.5 × C 64 × D 48.6 × E 9 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 — BFF63F2 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 | F2 | unknown — not documented | unknown |
| Connection configuration | Front-front | unknown — not documented | unknown |
| Colour | Black | unknown — not documented | unknown |
| Current rating | 63 A | unknown — not documented | unknown |
| Voltage | 550 VAC | unknown — not documented | unknown |
| Dimensions | A 89 × B 28.5 × C 64 × D 48.6 × E 9 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 — BFF63F2 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 | F2 | unknown — not documented | unknown |
| Connection configuration | Front-front | unknown — not documented | unknown |
| Colour | Black | unknown — not documented | unknown |
| Current rating | 63 A | unknown — not documented | unknown |
| Voltage | 550 VAC | unknown — not documented | unknown |
| Dimensions | A 89 × B 28.5 × C 64 × D 48.6 × E 9 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 — BFF63F2 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 | F2 | unknown — not documented | unknown |
| Connection configuration | Front-front | unknown — not documented | unknown |
| Colour | Black | unknown — not documented | unknown |
| Current rating | 63 A | unknown — not documented | unknown |
| Voltage | 550 VAC | unknown — not documented | unknown |
| Dimensions | A 89 × B 28.5 × C 64 × D 48.6 × E 9 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 — BFF63F2 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.
- 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 BFF63F2
- Mersen BS88 Cross Reference 2025 — holder family F2
- Mersen BS88 Cross Reference 2025 — BFF63F2 connection column
- Mersen BS88 Cross Reference 2025 — BFF63F2 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
BFF63F2
Locator: Mersen BS88 Cross Reference 2025 — Mersen holder reference BFF63F2
Holder Family
F2
Locator: Mersen BS88 Cross Reference 2025 — holder family F2
Connection Configuration
Front-front
Locator: Mersen BS88 Cross Reference 2025 — BFF63F2 connection column
Colour
Black
Locator: Mersen BS88 Cross Reference 2025 — BFF63F2 colour column
Locator: Mersen BS Fuse-holders — F2 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 89 × B 28.5 × C 64 × D 48.6 × E 9 mm
Locator: Mersen BS Fuse-holders — F2 dimensional drawing
Claim locators:
- Mersen product listing — rated current for BFF63F2
- Mersen product listing — rated voltage for BFF63F2
- Mersen product page — title for BFF63F2
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
63 A
Locator: Mersen product listing — rated current for BFF63F2
Voltage Rating
550 VAC
Locator: Mersen product listing — rated voltage for BFF63F2
Product Description
British Standard Fuse-Holder F2 Front-Front Black
Locator: Mersen product page — title for BFF63F2