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We are mainly dealing with low voltage electrical products for switchgear board and automation industry, such as panel filter and fan, panel heater, thermostat and hygrostat for panel, flexible busbar, terminal block, din rail, wiring duct, etc. we are aiming to provide one- stop-solution for panel builder.

Hot Products
  • KE Universal Terminal Block for AL / CU Conductor

    KE60 Universal Terminal for Al/Cu Conductors • Technical Specification • Conductor Cross-section( mm²): 1.5-16mm² • Housing: Polyamide • Mounting: DIN rail • Screw: Hexagon ,4mm • Operating Temperature (℃): Max 80℃ • Standard: EN61238-1, EN60947-7-2

  • Halogen Free Wiring Duct

    L-UD/R VD/R PC+ABS, Halogen free, low smoke, New type reinforced wiring ducts Material PC+ABS, halogen free, low smoke, RoHs compliant, Insulating Material; Electric safety, Fire safety. Flammability rating: UL94 V-0 Construction 1. Sides get thick, enhanced gradually from top to bot

Contact Us
  • Contacter: jiejia
  • Tel: 0086-21-69512240
  • Fax: 0086-21-36333839
  • Email:
  • Company Address:
    Building 7, No.659 Yinxing Road, Putuo district, Lishida Industrial Zone, Shanghai, China
LK3321 fan and filter Cabinet Ventilation, LK series UL94V-0 plastic Filter Fan for panel Linkwell LK33 series fan and filter are designed for the cooling and ventilation of cabinet enclosures. The filter fans are quick and easy to fix (Either click fixing or screw mounting), to form a seal upto IP54 filter fan. The long life expectancy , quiet operation,ultra-thin louvre filter and low maintenance design makes them almost “fit and forget”. For more harsh condition replacement filter mats are available. With multiple voltages for ac dc axial fans, different air flow volume and dimensions, economic types, Linkwell Electric are China leading manufacturer and exporter of filter fans. LK3321 CODE M.U Exit Filter Fan and Filter Fan and Filter Fan and Filter TYPE V-ph-Hz LK3321.300 LK3321.230 LKK3321.115 LK3321.024 Voltage/phase/frequency 220-240/1/50-60 110-120/1/50-60 24DC Height/Width/Depth mm 116.5×116.5 116.5×116.5×54 116.5×116.5×54 116.5×116.5×54 Power/Current W/A 18/14/0.07-0.08 18/14/0.13-0.15 4.3W/0.18A Temperature Limits ℃ -10/+70 -10/+70 -10/+70 Protection Degree IP 54 54 54 54 Noise Level dB(A) 37/41 37/41 37/41 Air Flow m3/h 25/35 25/35 25/35 Air Flow(+LK3321.300) m3/h 20/25 20/25 20/25 Air Flow Direction A/P A/P A/P
Cabinet Top mounting Ventilator Technical Explanation The premise of using top-mounted fan: Ambient temperature should be lower than the temperature that is required to be in the switchboard. Take top-mounted fan into account, when there isn’t enough space for a side-mounted filter fan in the cabinet. Top-mounted fan of the cabinet will bleed the air from the top of the cabinet and drive the heat out so as to protect the electric apparatus and keep them running at the temperature within controllable ranged. And the structure is more proper because it won’t take up space in the cabinet. EN 60 529/10.91 reaches IP54. The retractable high-power centrifugal fan is able to prevent moisture as well as mechanical damage, with its labyrinthine rain-proof structure, which with the help of the sealing frame, can reach an IP code up to IP54 as per EN60529/10.91. The centrifugal fan is mainly useful for discharge of high-heat load at peak efficiency. Adoption of the centrifugal fan will be able to reduce the noise resulting from air friction as well as avoiding the vortex discharged by normal shaded pole fan. The quantity and dimensions of inlet filters could be determined according to the actual situation. Please mark B behind corresponding model if a stainless shell required. We can provide products with different voltage as required by clients. Using Lk33 or EF Series Exit Filters at the side of the cabinet can prevent water and dust entering the cabinet, also make the air through the whole cabinet for cooling. Model No. KRF-670 KRF-950 KRF-1410 Voltage Frequency 230V, 50/60HZ Air flow/ Free discharge of air 620/670m3/h 910/950m3/h 1250/1410m3/h Centrifugal fan Capacitor Rated current 0.24A/0.31A 0.36A/0.38A 0.58A/0.62A Power 56/72W 82/88W 130/190W Noise level 55/56 dBA 60/62 dBA 65/70 dBA Temperature range -10 ℃~ 55 ℃ The quantity and size of the wind inlet filter can be decided according to the concrete requirement

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