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China Suppliers Factory - DC Solar Cylindrical Fuse Link with Variable Cross-Section Element and Arc-Extinguishing Medium

Introducing our high-performance variable cross-section fuse element, crafted from pure metal and securely sealed in a high-duty ceramic or epoxy glass cartridge. Each fuse tube is filled with chemically treated high-purity quartz sand, serving as an efficient arc-extinguishing medium. The reliable electric connection is ensured through dot-welding of the fuse element ends to the caps. For enhanced functionality, a striker can be attached to the fuse link, allowing for the immediate activation of a micro-switch, which provides various alerts or automatically cuts the circuit. As a trusted supplier and factory in China, we also offer special fuses tailored to meet your specific requirements, as illustrated in Figures 1.2 to 1.4. Choose us for superior quality and customized solutions.

    Applications

    Protection against overload and short circuit in electric lines (type gG), also available for protection of semiconductor parts and equipments against short-circuit (type aR) and protection of motors (type aM). Rated voltage up to 690V; Rated current up to 125A; Working frequency 50Hz AC; Rated breaking capacity up to 100kA, Compliant with GB 13539 and IEC 60269.

    Design Features

    Variable cross-section fuse element made from pure metal sealed in cartridge made from high-duty ceramic or epoxy glass. Fuse tube filled with chemically treated high-purity quartz sand as arc-extinguishing medium. Dot-welding of fuse element ends to the caps ensures reliable electric connection; Striker may be attached to the fuse link to provide immediate activation of micro-switch to give various signals or cut the circuit automatically. Special fuse as per Figure 1.2~1.4 can be supplied according to customers requirements.

    Basic Data

    The models, dimensions, and ratings are shown in Figures 1.1~1.4 and Table 1.

    Table 1
    Cat.
    Number
    Models Cross-reference Dimensions
    /sizes
    (mm)
    Rated Voltage
    (V)
    Rated
    Current(A)
    Weight
    (g)
    MIRO
    gG(Normal) aR(Fast) gG(Normal) aR(Fast) Fig ØDXL
    0101 RO06 RS06 1.1 Ø12.7×29 250/380 1~32 6.5
    0102 RO07 RS07 1.1 Ø30×57 600 10~100 75
    0103 RO09 RS09 1.1 Ø18×37 500 2~63 17.5
    0104 RO10 RS10 1.1 Ø18×50 500 2~63 23.5
    0105 RO11 RS11 AJT JKS LPJ ACL 1.1 Ø21×58 600 2~32 51.5
    0106 RO12 RS12 AJT JKS LPJ ACL 1.1 Ø27×60 600 35~100 90
    0107 RO13 RS13 1.1 Ø15×50 500 2~40 23.2
    0108 RO14 RS14 RT19-16 gF1 1.1 Ø8.5×31.5 500 0.5~25 4.4
    0109 RO14A RS14A 1.1 Ø8.5×23 250 0.5~20 3.5
    0110 RO14B RS14B 1.1 Ø8.5×36 380/500 0.5~20 5
    0111 RO15 RS15 RT14-20 gF2
    RT18-32 RT19-25
    KTK KLM 1.1 Ø10.3×38 500/690 0.5~32 7.7
    0112 RO15A RS15A 1.1 Ø10.3×25.8 250 0.5~16 4.8
    0113 RO15B RS15B 1.1 Ø10.3×31.5 250/500 0.5~25 5.8
    0114 RO15C RS15C 1.1 Ø10.3×34 380/500 0.5~32 6.2
    0115 RO15D RS15D 1.1 Ø10.3×57 600 2~32 11
    0116 RO16 RS16 RT14-32 gF3
    RT18-63 RT19-40
    FWP 1.1 Ø14.3×51 500/690 2~63 20.5
    0117 RO16A RS16A 1.1 Ø14.3× 38 500 2~50 15.6
    0118 RO16B RS16B 1.1 Ø14.3×45 500 2~50 18.5
    0119 RO16C RS16C 1.1 Ø14.3×67 500 2~50 27.5
    0120 RO17 RS17 RT14-85 gF4
    RT18-125 RT10-100
    URE2263 1.1 Ø22.2×58 500/690 10~125 58
    0121 RO18 RS18 1.1 Ø9.6×30 380 0.5~25 4.8
    0122 RO19 RS19 1.1 Ø20.5×127 600 0.5~32 91.2
    0123 RO19A RS19A 1.1 Ø20.5X76 250/500 0.5~63 63
    0124 RO19B RS19B 1.1 Ø20.5×114 600 0.5~32 85
    0125 RO19C RS19C 1.1 Ø27×139 600 32~63 172.4
    0126 RO19D RS19D 1.1 Ø147×27 600 32~63 160
    0127 RO54 RS54 1.1 Ø5×20 250 0.5-16 1
    0128 RO55 RS55 1.1 Ø5×20 250 0.5-16 1.3
    0129 RO56 RS56 1.1 Ø6×20 250 0.5~16 1.7
    0130 RO57 RS57 1.1 Ø6.3×25 250 0.5~16 2.1
    0131 RO58 RS58 1.1 Ø6.3×31.5 250/500 0.5~16 2.5
    0132 8SY5015 8SY5015 1.1 Ø11×77 1140 2 23
    0133 8SY5016 8SY5016 1.1 Ø11×77 1140 4 23
    0134 8SY5017 8SY5017 1.1 Ø11×77 1140 6 23
    0135 8SY5018 8SY5018 1.1 Ø11×77 1140 8 23
    0136 8SY5019 8SY5019 1.1 Ø11×77 1140 10 23
    Table 1 (Cont.)
    Cat.
    Number
    Models Cross-reference Dimensions/sizes
    (mm)
    Rated
    Voltage(V)
    Rated
    Current(A)
    Weight(g)
    MIRO
    gG(Normal) aR(Fast) gG(Nomal) aR(Fast) Fig. ØD×L
    0137 RO08 RS08 JJS 1.2 Ø20.5×40 600 2~63 40
    Table 1 (Cont.)
    Cat.
    Number
    Models Cross-reference Dimensions/sizes
    (mm)
    Rated
    Voltage(V)
    Rated
    Current(A)
    Weight(g)
    MIRO
    gG(Normal) aR(Fast) gG(Nomal) aR(Fast) Fig. ØD×L
    0138 RO15T RS15T ATQR KTK KLKR 1.3 Ø10.3×38 500/690 0.5~32 7.5
    Table 1 (Cont.)
    Cat.
    Number
    Models Cross-reference Dimensions/sizes
    (mm)
    Rated
    Voltage(V)
    Rated
    Current(A)
    Weight(g)
    MIRO
    gG(Normal) aR(Fast) gG(Nomal) aR(Fast) Fig. ØD×L
    0139 RO16H RS16H ATQR KTK KLKR 1.4 Ø14.3×51 250 0.5~32 25
    0140 RO17H RS17H 1.4 Ø22.2×58 500/690 10~125 52
    0141 RO19H RS19H FRS-R 1.4 Ø20.5×127 600 0.5~63 82
    0142 RO19AH RS19AH FLNR 1.4 Ø20.5×76 500/690 0.5~63 60
    0143 RO19BH RS19BH 1.4 Ø20.5×114 500 0.5~63 72
    0144 RO19CH RS19CH FRS-R 1.4 Ø27×139 600 32~63 148
    0145 RO19DH RS19DH 1.4 Ø20.5×147 600 32~63 172

    Frequently Asked Questions

    What are the primary applications of these fuse links?

    They are designed for overload and short-circuit protection in electric circuits (type gG), protection of semiconductor devices and equipment (type aR), as well as electric motor protection (type aM).

    What are the maximum rated voltage and current capacities supported?

    The series supports rated voltages up to 690V AC (with specific high-voltage models reaching 1140V) and rated current ratings up to 125A with a breaking capacity up to 100kA.

    Which international manufacturing standards do these products comply with?

    These cylindrical fuse links strictly comply with national and international electrical safety standards including GB 13539 and IEC 60269.

    What materials are utilized for the fuse body and arc-extinguishing medium?

    The fuse element is constructed from high-purity metal sealed inside a high-duty ceramic or epoxy glass tube, filled with chemically treated high-purity quartz sand for effective arc quenching.

    Can a striker or micro-switch signal trigger be integrated?

    Yes, a striker mechanism can be attached to provide immediate triggering of an auxiliary micro-switch, enabling remote fault signaling or automated circuit isolation.

    Are customized dimensions or special fuse links available upon request?

    Yes, custom fuse links matching specifications in Figures 1.2 to 1.4 or customer-defined electrical parameters can be engineered according to your requirements.