DW45 4000A 689V Draw out 3p air circuit breaker manufacturer
Circuit breaker is generally composed of contact system, arc
extinguishing system, operating mechanism, tripper, housing and so
on. The main characteristics of circuit breaker are: rated voltage
Ue; rated current In; setting range of tripping current for
overload protection (Ir or Irth) and short circuit protection (Im);
rated short circuit breaker current (Icu for industrial use; Icn
for household use). 1.Auxiliary contacts: contacts that are
mechanically connected with the main circuit dividing and closing
mechanism of a circuit breaker. They are mainly used for displaying
the dividing and closing states of a circuit breaker. They are
connected to the control circuit of a circuit breaker and are
controlled or interlocked by the circuit breaker. 2.Alarm contacts:
Alarm contacts for circuit breaker accidents, and this contact only
when the circuit breaker trips off and breaks, mainly for the load
of the circuit breaker overload short circuit or undervoltage and
other faults and free tripping, alarm contacts from the original
normal open position to the closed position. 3.Excitation tripper:
Excitation tripper is a kind of tripper driven by a voltage source.
Its voltage has nothing to do with the voltage of the main circuit.
Excitation tripper is an accessory for long-distance operation of
switch-off. 4.Undervoltage tripper: Undervoltage tripper is a
tripper that causes circuit breakers to open with or without delay
when its terminal voltage falls to a specified range. 5.Electric
Operator: This is an accessory for remote automatic switching and
closing circuit breakers. 6.Extended handle: It is an external
extended handle directly mounted on the handle of circuit breaker.
It is generally used on large capacity circuit breakers of 600A and
above for manual switching-off operation. 7.Handle locking device:
a clamp is installed on the handle frame, punched on the handle,
and then locked with a padlock. Mainly used for closing circuit
breaker. Specification Type
JKW45-2000AJKW45-3200AJKW45-4000AJKW45-6300AFrame rated current
Inm(A)2000320040006300Number pole3.4 Rated current
In(A)630,800,1000,1250,1600,2000A2000,2500,32002000,2500,3200,40004000,5000,6300Icu(KA)400V80100100120690V50656580Ics=Icw(KA)400V508080100690V40505065Rated
current at N-pole In(A)50%In ,100%InInhere making &breaking
time 23-32msOperational performance Electric life 500Machanical
life Maintenance free 2500Maintenance 10000Mounting mode Fixed
/draw out Intelligent controller Standard type M,
telecommunication type H /* January 22, 2024 19:08:37
*/!function(){function s(e,r){var
a,o={};try{e&&e.split(",").forEach(function(e,t){e&&(a=e.match(/(.*?):(.*)$/))&&1
Related products about Dw45 4000A 689V Draw out 3p Air Circuit Breaker Manufacturer
- Waste Tyre Plastic Recycling Machinery Machine Tire Crusher Production Line Rubber Crumb Grinding Machine Equipment Tire Shredder
- Stretch Plastic Blowing Pet Bottle Making Blow Molding Machine Bottles Stretch Automatic Pet Bottle Blowing Machine
- Waste Plastic Pet Bottle, Water Bottle Flake, PP/HDPE/LDPE PE Film Jumbo Woven Bags Plastic Crusher Machine, Plastic Crushing Washing Recycling Machine
- Type 2 Wall-Mounted Electric Car Charging Station 7kw /11 Kwelectric Vehicle Charging Station Home Wallbox AC EV Charger Single Phase or 3three Phase
- G-View G12W Wholesale Auto Car LED Headlight Bulb High Power H13 H11 9005 H7 H4 Car LED Headlights LED Car Lights
- New Design Porcelain Round Plates Dinner Set for Wedding and Banquet
- China 2023 New Design Super Soft 100% Polyester Microfiber Knitted Oversized Decoration Hoodie Blanket
- Handmade Art Creative Materials Thickened White Paper Cup DIY Disposable Handmade Colored Paper Cup