FB02A3N - FUSE HOLDER 3P+N 14X51

Why Choose the FB02A3N?

Designed for dependable circuit protection, the Lovato FB02A3N fuse holder suits 14x51mm fuses in demanding AC applications. Rated 50A at 690VAC and configured 3P+N, it provides a compact, four‑module solution without a status indicator. The SKU FB02A3N is cUR recognised and compliant with IEC/UL/CSA requirements, giving installers confidence for industrial panels and distribution assemblies.

Built for reliability, the holder withstands -20 to 70 °C operating temperatures and up to 3000 m altitude. Frontal IP20 protection supports safe integration inside enclosures, while robust terminals accept secure tightening up to 3 Nm. Conforming to IEC/EN 60269 and 60947 standards, and UL/CSA references, this 46 g unit delivers proven performance in space‑efficient, multi‑pole protection schemes.

Key Benefits

• 3P+N multi-pole topology for three-phase circuits with neutral.
• Rated 50A at 690VAC for high-capacity AC circuit protection.
• Accepts 14x51mm fuses for standardised, easily sourced protection links.
• cUR recognised; IEC/UL/CSA compliance simplifies panel approvals and documentation.
• IP20 frontal protection enhances safety within enclosed switchgear assemblies.
• Wide -20 to 70 °C operating range suits varied industrial environments.
• Up to 3 Nm terminal tightening supports secure, reliable connections.
• Compact four‑module width optimises space in crowded enclosures.

Technical Specification

• Operating voltage type: AC
• Operating temperature: -20 to 70 °C
• Storage temperature: -40 to 80 °C
• Max altitude: 3000 m
• Terminal tightening torque (max): 3 Nm
• Weight: 46 g
• IP degree (frontal): IP20

What’s Included

• Lovato FB02A3N fuse holder (3P+N, for 14x51mm fuses)
• Installation leaflet

Applications

• Industrial control panels and switchboards
• Three-phase distribution with neutral in machinery and process equipment
• Motor protection circuits using 14x51mm fuse links
• HVAC and building services panels
• Power distribution up to 690 VAC in compact enclosures

Safety note: Install and service only by qualified personnel. De‑energise circuits before work, observe the 50 A/690 VAC ratings and -20 to 70 °C limits, ensure IP20 frontal protection is within a suitable enclosure, and do not exceed 3 Nm terminal torque.