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voltage switch level B SPD

Min. Order: 1 Set/Sets
Payment Terms: T/T
Supply Ability: 200
Place of Origin: Shaanxi

Company Profile

Location: Xi'an, Shaanxi, China (Mainland)
Business Type: Manufacturer

Product Detail

Model No.: KNFB-25
Means of Transport: Ocean, Air, Land
Brand Name: chianstarwin
Nominal voltage: 220V
Max continuous working voltage: 300v
Installing support: 35MM standard lead rail
Protection level: IP20
Response time: ≤100ns
Working frequency: 50~60HZ
Impulse current: 25ka
Max. back-up fuse: 125A gl/gG
Limit voltage: ≤1.2kv
Production Capacity: 200
Packing: wooden case
Delivery Date: 1 week
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Product Description

                     Voltage Switch Level B SPD

 

 Voltage switch B level SPD is usually used in LPZOB LPZ1 zone and in the power supply system. It can eliminate the 

continuous current to the utmost extent and conduct the 10/350μs analogy lightning impulse current. when there is no

 transient overvoltage,it's in high resistance.while there is transient overvoltage,it's in low resistance and allow 

electricity to flow through.This is the working principle.we can provide the "3+0" and "4+0" protection type according to 

different power supply system.

 

KNFB-25 applies in the rating voltage 220V/380V in the low  pressure side or LPZ0LPZ1 zone. It protects the first level 

lightning or overvoltage.This product is not suitable for the system that prospective short circuit current is higher than

 rating current. The front of the product should cascade the insurance fuse. Otherwise, the producing frequency current 

may damage the protection devices when products discharge.

 

 

                                                         KNFB-25/4P

 

 

 

 KNFB-25/4P wiring schematic drawing

 

 

                         

 

Technical Parameters

Model

KNFB-25

nominal voltage

Un

220V

Max continuous working voltage

Uc

300v

Working frequency

50~60HZ

Impulse current

Limp

25ka

Limit voltage

Up

≤1.2kv

Max. back-up fuse

125A gl/gG

response time

Ta

≤100ns

environmental temperature

-40℃~+80℃

Protection level

IP20

Install wire section

Min:10mm2   (single line)

MAX:16mm2(single line)

25mm2(Multi line)

Installing support

35MM standard lead rail

 

 

Installation And Maintenance

1.DIN 35MM standard rail installation.

2.The product adopt the flame retardant ABS housing,fix the products,connect the power lines and ground lines by 

    the drawing,examine and power up.

 3.Grounding is very important for the normal work of SPD.the ground contact area is no less than 25 mm2 and as 

    short as possible.

4.The products don't need special maintenance while it is on position for a long time.So we should assign some

   people to examine regularly.Especially in The thunderstorm season.Once stuck,check it Immediately.

5.The product is equipped with a fault indicator.when working normally,the indicator shows green,When this system 

   malfunctions,it shows red.

6.The internal components are with alternating current,be careful when the system is working.

 

 

Production equipment

 

 

 

Company culture

 

 

 

Shippment:

We ship your order by sea or by air...

 

Our core principles

3S-Superiority,Speed,Service

Faster Speed & Better Tailor-made professional service

 

Our promise to customer:

Our products are all guaranteed,you will have no worry to use.

We will delivery the order strictly te order confirmed!

 

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