Ceramic AC 1140V PV Fuse Holder

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This 3-pole fuse base is designed for AC/DC power distribution, photovoltaic and energy storage equipment, the standard model is RT18-125 Ceramic Fuse holder. Each fuse link of three poles is equipped with an independent visual blown-fuse indicator window, and the working status of three-phase circuits will not interfere with each other. Once overload or short-circuit blows the fuse link, the indicator dot or light on the corresponding pole will activate to alert users. Built-in micro signal contact will collect fault signals synchronously and transmit data to the monitoring background, allowing maintenance crews to pinpoint faulty phase remotely.

Different from traditional fuse holders without signal output, this RT18-125 Fuse base integrates independent 3-phase fault indication, remote fault data transmission and high temperature resistant insulated housing, greatly cutting the labor cost of routine inspection. It is widely used in industrial & commercial distribution cabinets, PV combiner boxes, energy storage converters and other power equipment.

Each fuse channel comes with an exclusive blown-fuse indicator. Fault on single circuit only triggers the corresponding channel alert without disturbing status display of the other two phases, eliminating phase-by-phase manual inspection. Combined with background data uploading function, it builds dual fault identification system: remote online alarm plus on-site visual check. As a compatible Ceramic PV Fuse base for PV DC systems, its flame-retardant insulated shell features high voltage resistance and anti-aging performance, supporting stable long-term operation under high current loads.

1.Separate Indication For Three Phases, No Confusion On Fault Location Three fully independent fault alert channels. Single-channel failure will not affect the status display of other two phases. No power-off phase-by-phase testing required, greatly improving on-site troubleshooting efficiency.

2.Dual Alert System (On-site Visual + Remote Background) To Realize Unattended Intelligent O&M Local visible indicator activates after fuse blowing, meanwhile fault data is synchronized to background system. Staff do not need 24-hour on-site patrol; fault information can be obtained remotely instantly to arrange maintenance schedules reasonably.

3.Integrated Signal Contacts To Reduce Complete Set Assembly Cost Built-in fault signal micro switch eliminates the need for external separate fuse alarm accessories, cutting component quantity inside cabinet, shortening assembly time and lowering overall procurement cost.

4.PV-Specific Insulated Housing Suited For High DC Current Working Conditions As a professional Ceramic PV Fuse base, the shell owns excellent high temperature resistance, arc resistance and anti-aging performance for stable long-term operation, perfectly matching DC protection scenarios of PV combiner boxes and energy storage converters.

5.Universal DIN Rail Mounting Fits Most Low-Voltage Distribution Cabinets Standard DIN rail design compatible with mainstream low-voltage cabinets on market. It can directly replace traditional non-indicator fuse holders for renovation and new projects with easy upgrade.

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