Mersen EP A4BY1800 Low Voltage UL Power Fuse

Mersen EP A4BY1800 Low Voltage UL Power Fuse

3.5" x 10.75", 600 VAC/300 VDC, 1800 A, 200 kA AC/100 kA DC Interrupt, GMG Body, Silver Plated Copper Blade Terminal, Bolted Mount, Class L, Current Limiting, 4 Sec Time Delay, Low Vage UL Power Fuse (1 per Pack)

(No reviews) Write a Review

🚚 Free shipping on orders $50+.

MPN: A4BY1800

SKU:

UPC: 782001939229

Weight: 8.65 LBS

Minimum Purchase: 1 unit

Product Conditions

Surplus

Parts from another distributor or wholesaler that were only removed from the original packaging for inspection and pictures. These parts have never been energized, installed, or modified in any way.

Used

Parts that show any sign of being energized, installed, assembled with other parts, or functional wear or corrosion. These parts are sold as-is and returns may not be accepted.

Repackaged

Parts from another distributor or wholesaler that are missing the original packaging. These parts have never been energized, installed, or modified in any way and will ship in an ARCA box.

Learn More About Product Conditions

Disclaimer: Critical Surplus is not an authorized distributor, reseller or representative of any manufacturer, brand or product listed. All product names, trademarks, brands and logos are the property of their respective owners. The depiction, description or sale of products featuring these names, trademarks, brands and logos is for identification purposes only and is not intended to indicate any affiliation with or authorization by any rights holder. All items sold by Critical Surplus are covered under Critical Surplus' warranty and not the manufacturer warranty.

Description

Mersen EP A4BY1800 Low Voltage UL Power Fuse

Technical Specifications

Manufacturer	Mersen EP A4BY1800 Low Voltage UL Power Fuse
Catalog Number	A4BY1800
Current Rating	1800 A
Terminal Type	Blade
Type	Class L
CAD Drawings	Mersen_00195_1_CAD.pdf
Catalog	Mersen_00086_188_CAT.pdf
Series	A4BY
Data Sheet	Mersen_00019_PF4_PF5_DATA.pdf
Interrupting Rating	200 kA (AC), 100 kA (DC)
Characteristics	4 Sec Time Delay (at 500 Percent Rated Load)
Voltage Rating	600 VAC, 300 VDC
Length	10-3/4
Diameter	3-1/2
Approval	UL 248/248-10, CSA C22.2
Country of Origin	Mexico

Condition & Warranty

This Mersen EP A4BY1800 Low Voltage UL Power Fuse is sold as surplus and sourced from trusted and verified channels. Units may arrive in non-retail packaging and may show minor storage-related cosmetic handling. 90-day limited replacement warranty included.

Shipping & Handling

Most orders ship within 1 business day with immediate tracking updates. Expedited shipping and freight support available. Choose Next Day Air at checkout or contact us for more information.

Why Buy from Critical Surplus?

Circular economy model: Responsible surplus sourcing.
Professional-grade inventory: Genuine components only.
Technical support: Help with compatibility and spec verification.
Bulk options: Multi-unit and pallet pricing available.

Mersen EP A4BY1800 Low Voltage UL Power Fuse

From:

$2,620.38

Surplus – Unused Original Packaging

(NSB)

Parts from another distributor or wholesaler that were only removed from the original packaging for inspection and pictures. These parts have never been energized, installed, or modified in any way. They show no visible signs of use or damage and include all standard hardware and accessories. Original packaging may show shelf wear or be missing documentation.

Surplus – Unused Repackaged

(NNB)

Parts that are unused but missing original packaging. These ship in aftermarket packaging and may show light handling marks. Hardware, accessories, or documentation may be missing. Original manufacturer warranty may not apply.

Surplus – Minor Cosmetic Defect

(NWD)

Parts with cosmetic defects, missing non-critical components, or factory blemishes. These parts have not been installed or energized and remain fully functional. Defects do not impact certifications or performance.

Used – Good Condition

(USD)

Parts that show signs of previous use, cosmetic wear, or minor handling marks. Items are functional but may have missing accessories or documentation. Sold as-is unless otherwise noted.

Used – Poor Condition / For Parts

(SLV)

Parts that are damaged, incomplete, or non-functional. These items are not tested and are sold strictly for parts or repair. Returns are not accepted. Additional photos available upon request.

Mersen EP A4BY1800 Low Voltage UL Power Fuse