Fuse Disconnect Terminal Block

Application

Fuse disconnect terminal blocks replace separate fuse holders and isolators wherever individual circuit protection and local disconnect are required at the terminal level:

• Instrumentation and control panels — 24 V DC field device circuit protection — one fuse per sensor or transmitter loop
• PLC power supplies — individual MCB-less branch protection for 24 V logic and I/O power rails
• Motor control centers — individual motor branch circuit fusing between the main breaker and the contactor
• Building management systems — zone controller and field device circuit isolation for maintenance without shutting down the whole panel
• LED driver and lighting control — individual luminaire circuit fusing in entertainment and architectural lighting panels
• Solar combiner boxes — individual PV string overcurrent protection between module strings and the main DC disconnect
• HVAC and refrigeration — compressor, fan motor, and control circuit fusing in rooftop unit control panels

Advantage

• Three functions in one module — terminal block + fuse holder + disconnect in one 6–10 mm wide module saves significant panel space versus separate components
• Visible isolation status — the raised fuse carrier is a clear visual indication that the circuit is open — critical for lockout/tagout (LOTO) safety procedures
• LED blown-fuse detection — load-side LED indicator glows when the fuse has blown — maintenance technician knows which circuit has failed without pulling every carrier
• No loose fuse handling — captive fuse carrier keeps the fuse captured during removal — prevents dropping and loss in cramped panels
• Modular fuse rating change — changing the fuse in the carrier is all that is needed to re-rate a circuit — no rewiring, no replacement terminals
• Integrates with standard marking system — same side-entry marker strip as our feed-through range — single marker inventory for the whole panel