Zhejiang Hongman Electric Technology Co., Ltd. is one of the most reliable manufacturers and suppliers of 690v ac 63a 14x51mm solar pv din rail fuse holder in China. We are committed to providing high quality customized products made in China with competitive price. Welcome to wholesale bulk cheap 690v ac 63a 14x51mm solar pv din rail fuse holder from our factory.
Product Introduction
RT18B-63 is a standardized flame-retardant DIN rail Solar Fuse Holder engineered for 690V AC photovoltaic combiner boxes and low-voltage industrial control cabinets. Precision optimized to fully mate 14×51mm gG full-range ceramic fuse links covering 0.5A up to 63A, this AC fuse base delivers stable overcurrent & short-circuit isolation for medium-power PV inverter AC loops, motor control panels and UPS distribution circuits. Constructed with arc-resistant PA66 housing and thickened copper conductive frame, it meets global IEC safety standards and enables tool-free plug-in fuse replacement via TH35 rail snap mounting.
Product Parameter
|
Item |
Professional Specification Data |
|
Full Model |
RT18B-63 690V AC 14×51mm Solar PV DIN Rail Fuse Holder |
|
Matched Fuse Size |
14.2mm Dia × 51mm gG ceramic fuse link |
|
Applicable Fuse Current |
0.5A ~ 63A full stock series |
|
Rated Working Voltage |
AC380 / 400 / 500 / 690V |
|
Max Matched Breaking Capacity |
AC500V:120kA; AC690V:50kA |
|
Optional Poles |
1P / 2P / 3P |
|
Shell Material |
UL94-V0 flame retardant PA66 engineering plastic |
|
Conductive Parts |
Integrated thick pure copper strip, ultra-low contact resistance |
|
Executive Standard |
IEC60269-2 |
|
Global Certifications |
CE, ISO9001, RoHS |
|
Mounting Mode |
TH35 standard DIN rail snap-on installation |
|
Applicable Wire |
1.5 ~ 50 mm² |
|
Working Environment |
-40℃ ~ +60℃, Pollution Grade 3, Installation Category III, Altitude ≤2000m |
|
Core Application |
Medium-power PV AC combiner boxes, industrial motor control, frequency converter & UPS AC loops |
Product Advantage
1. Tool-Free Quick Assembly & Maintenance, Cut On-Site Labor Cost
This 690V Fuse Holder features click-in TH35 DIN rail snap structure, realizing rapid one-click mounting without any screwdrivers or auxiliary tools. As a core PV Fuse Holder for medium-power AC combiner boxes, it supports direct plug-and-play replacement of 14×51mm ceramic fuses. Maintenance technicians can finish fuse swap within seconds under equipment power-off state, greatly shortening the downtime of distributed solar stations and reducing manual labor expenditure for EPC contractors and plant operation teams. Matched fuses can reach 120kA breaking capacity at AC500V while retaining simple daily operation.
2. Universal Cabinet Layout Design, Simplify Project Standardization
Specially sized for 14×51mm medium-current fuses, this Solar Fuse Holder perfectly bridges the specification gap between compact 10×38 and heavy-duty 22×58 fuse bases. The unified overall dimension of this 690V Fuse Holder enables standardized cabinet design for batch PV projects. Integrators only need one unified drawing for all medium-current AC branches, eliminating customized cabinet machining and lowering drawing design & mold development costs.
Production Process & Quality Control System
Packaging, Shipping & After-sales Service
Standard Export Packaging: Each Solar Fuse Holder is packed in separate inner cartons, loaded into reinforced shockproof outer cartons to prevent plastic shell scratch.
Professional After-Sales Service: Complete CE & RoHS official test reports provided for customs clearance and solar tendering; 1-year full warranty, free layout matching guide for 690V Fuse Holder and PV Fuse Holder.
FAQ
Q1: What maximum continuous load current can this 690V Fuse Holder withstand in PV cabinets?
A1: This Solar Fuse Holder supports max 63A steady rated current, matching full-range 14×51mm ceramic fuses for medium AC PV string protection.
Q2: Is this PV Fuse Holder suitable for outdoor waterproof PV combiner boxes?
A2: Yes, the PA66 flame-retardant shell of the 690V Fuse Holder features moisture resistance. When paired with sealed cabinets, this Solar Fuse Holder can work stably in outdoor distributed photovoltaic projects.
Q3: What is the service life of this PV Fuse Holder under normal PV operating conditions?
A3: The service cycle of this 690V Fuse Holder can reach 8~10 years under -40℃~60℃ standard PV environment, only the fuse link needs to be replaced after short-circuit blowout.
Q4: Can multiple poles of this Solar Fuse Holder be freely combined for PV cabinet layout?
A4: This PV Fuse Holder provides optional 1P/2P/3P poles, which can be freely arranged to match different AC photovoltaic cabinet wiring schemes.
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