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CNSD

CNSD Moulded Case Circuit Breaker

Usage

CNSD dual breaking contact structure and the energy release system ensure stable and reliable protection and have excellent current-limiting characteristics. A transparent cover protects your trip unit from being improperly set.

Accessories like rotary handles, motor operation mechanisms can be installed.

Protection

Overload protection: Thermal protection (lr)
Thermal overload protection is based on a bimetal strip providing an inverse time curve l2t, corresponding to a temperature rise limit. Above this limit, the deformation of the strip trips the circuit breaker operating mechanism.

Overload protection has the following characteristics:

  • It can be adjusted in amps from 0.7 to 1 times the rating of the trip unit(16A to 250A),
  • corresponding to settings from 11 to 250A for the range of trip units.

Anon-adjustable time delay.

Short-circuit protection: Magnetic protection (Im) Short-circuit protection with a fixed or adjustable pick-up lm that initiates instantaneous tripping if exceeded.

  • TM-D: fixed pick-up, Im, for 16-160A ratings and adjustable from 5 to 10 x ln for 200 and 250A ratings.
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      Technical Data
      Dimension
      Tripping Curves
      Packing Data
      Advantage
      Video

      Functions and Characteristics

      Item No.CNSD100-250CNSD400-630CNSD800-1600
      Number of poles3P, 4P
      ControlManualwith toggle/with direct or extended rotary handle
      ConnectionsFixedfront connections
      Plug-infront connections/rear connections
      Electrical characteristics as per IEC60947 and EN60947-2
      Rated current(A)In16,25,32,40,50,63,80,100,125,160,200,250400,500,630800, 1000, 1250, 1600
      Rated insulation voltage(V)Ui800
      Rated impulse withstand voltage(kV)Uimp8
      Rated operational voltage(V)UeAC 50/60Hz, 690V
      Utilization categoryA
      Breaking capacity levelsF      N     HN            H
      Breaking capacity (kA rms)
      AC 50/60 Hz  380/415 V      		lcu36,    50,   7050，        70
      Service breaking capacity (kA rms)
      AC 50/60 Hz  380/415 V      		lcs36,    50,   7050，        70
      Operation performanceMechanical200001000010000
      Electrical1000050005000
      ProtectionChart B-1   B-2Chart C-1
      Indication and control auxiliaries
      Auxiliary switch■■
      MX Shunt coil■■
      MN under-voltage coil■■

      Dimension

      Tripping Curves

      Packing Data

      ModelQty/CTN(pcs)GW(kg)NW(kg)Carton Size(cm)
      CNSD-100 3P1221.529.242.5*40*24.5
      CNSD-100 4P818.616.840.5*29*31
      CNSD-160 3P122219.742.5*40*24.5
      CNSD-160 4P819.417.640.5*29*31
      CNSD-250 3P122421.542.5*40*24.5
      CNSD-250 4P82119.240.5*29*31
      CNSD-400 3P42421.533*31*30.5
      CNSD-400 4P430.527.548.5*29.5*23
      CNSD-630 3P424.822.333*31*30.5
      CNSD-630 4P431.528.548.5*29.5*23
      CNSD-800 3P114.11245.5*35.5*31.5
      CNSD-800 4P118.215.444.5*36*42.5
      CNSD-1600 3P114.412.345.5*35.5*31.5
      CNSD-1600 4P118.81644.5*36*42.5

      Advantage

      • High precision mold 500+ sets
      • Products exhibit exceptional craftsmanship
      • 48-Hour Anti-Saltspray
      • 20,000+ Life Time
      • High Breaking Capacity up to 100kA
      • -25℃ Min Temperature

      Customized to your design

      Manufacture products based on customer’s complete specifications.

      Customers provide comprehensive specifications documents covering all product details, specifications include complete technical drawings, bill of materials, material/component requirements, and all dimensions, our Engineering and manufacturing team reviews specifications to ensure producibility, we can also provide some new ideas to help you make your product better!

      Customized Solution

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        Frequently Asked Questions

        A: We are professional manufacturer in industrial electrical equipment since 1992. Welcome to have online/offline factory tour for further communication.

        A: Sure, please send us an inquiry and tell us your demand, we have a professional team to support you in model selection til the order is placed.

        A: Moulded Case Circuit Breaker, Air Circuit Breaker, Earth Leakage Circuit Breaker, Miniature Circuit Breaker, Contactor, Motor Protection Circuit Breaker, etc.

         

        A: We strict in high quality. Products has low temperature rise, long life time and good corrosion resistance. Our materials are Mitsubishi PC, DuPont PA66, DMC-A/DMC-2, metal coating-corrosion resistance 72 hours, T2 copper bar, T2 copper pillar, T2 copper plate. All Products pass the test of CQC,CE,CB and TUV.

         

        A: Yes, 24 months warranty, and our products are 100% inspected. If any problems, let us know immediately, and we will give a satisfactory solution.

        A: Yes, 100% inspection. Products passed all tests: micro resistance test, withstand voltage test, temperature rise test, short time delay characteristic test, long time delay characteristic test and instantaneous trip test for each phase.

        A: Yes sure, we provide OEM/ODM/OBM/OPM service, consult us for details like MOQ and design.

         

        A: Usually it takes about 25 days for production. If you have urgent requirements, please send us a list to check the stock. We have sufficient stock for materials.

         

        A: We have flexible payment terms, and accept TT, 30% deposit with 70% balance before shipment. 

         

        A: Welcome! Please let me know your Country/Area first, we will have a check and then process it. Don’t hesitate to contact us for further cooperation.

         

        A: Yes, for large quantities, we always support with better prices. Also, there are some seasonal promotions. Please contact us for a special discount.

         

        A: For transportation issues, we will assist in troubleshooting and provide accessories and guidance. If the product cannot be repaired, we will send you replaced one in the next order. For installation issues, we will provide installation instructions or video guidance.

         

        A: Welcome! We are in Liushi Town,  Wenzhou City, Zhejiang, China. Let us know when you are planning to visit.

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