Circuit Breaker & Automatic Transfer Switch
Moulded Case Circuit Breaker
Air Circuit Breaker
Miniature Circuit Breaker
Residual Current Circuit Breaker
Dual Power Automatic Transfer Switch
Motor Protection Circuit Breaker
Surge Protective Device
Relay , Contactor , Starter & Frequency Inverter
Thermal Relay
General Relay
Timer Relay
Relay Socket
Solid State Relay
Contactor
Starter
Frequency Inverter
Power Equipment and Transformer and Solar
Voltage Stabilizer
Switching Power Supply
Control Transformer
Voltage Regulator
Ups & Eps
Inverter
Power Transformer
Solar Products
Instruments
KWH Meter
Panel Meter
Shunt
Current Transformer
Multimeter
Temperature Controller
Thermocouple & Thermal Resistance
Small Ptc Heater & Small Thermostat
Compass
Indicator & Switch & Warning Products
Indicator
Pushbutton Switch
Motive Switch
Limit Switch
Micro Switch
Toggle Switch
Foot Switch
Universal Changeover Switch
Float Switch
Warning Light
Siren
Warning Bell
Fuse & Disconnector
Low Voltage Fuse
Fuse Disconnector
High Voltage Fuse
Welder & Rectifier
Welder
Rectifier
Plug & Socket & Isolating Switch & Distribution Box
Industrial Plug & Socket
Weather Protected Isolating Switch
Distribution Board
Elctrical Accessories
Terminal
Cable Tie
Clips
Cable Gland
Cabinet Lock
Others
Axial Fan
Ex Products

● Address: NO.208, Weiqi Road, Yueqing Economic Development Zone, YueQing, Zhejiang, China.

● Worktime : 24 hours online   service

● Fax:0086 577 5293 1777

● Tel:0086 577 6273 1666

BY20 Surge protective device

Submit Comments
*Name
Phone
*Email
Address
*Message
Usage and application scope
BY20 type surge protective device (short name "SPD") is suitable for AC 50/60 Hz,380V and the following electric power systems,such as TT, IT, TN-S, TN-C, TN-C-S. It protects the electric network shocked by the thunder or over voltage .
Working condition:
 1.Height: not more than 2000m
 2. Operating temperature : normal -5~+40˚C       Enlarge range: -40~+80˚C
 3. Relative humidity: on condition that room temperature 30%~90%
 4. Installed at no notability shocked and virated place
 5. Don't be contained in explosion medium,the medium such as air and dust (including conduction dust ) shouldn't come to the degree that can corrode metal or damage insulation.

Model and meaning

Tripping device
There's tripping device designed on the modular of the protector. When the protector is over heat or shocked, the tripping device can automatically separate it from the electric net, at the same time showing the indication signal. It's green when the protector is normal, red when tripping.
Remote signaling contact
The products can be produced available with the accessory of remote signaling contact. If one or more of modular of the protector is in malfuction, the contact will be closed, and sending the malfunction signal.
Principal parameters
Maximum continuous operating voltage : Uc 275    440 V~
Test grade:II
Voltage protect level: Up≤ 1.2    1.8    2.0 kV
Maximum discharge current : (8/20μS) Imax    12    15    40    62kV
Nominal discharge currrent: (8/20μS) In    8    5    15    30kA
Remote communication terminal parameter

Type of remote communication terminal


Active

Terminal normal power

UN/IN

AC: 250V/0.5A DC: 250V/0.1A, 125V/0.2A, 75V/0.5A

Conductor section


Maximum single line: 1.5mm2

Main Structure and Operating Principle
n three-phase four- line system , three phase lines and one zero line are connected protective device to the earth cable . (figure 1 ) . In normal situation , the protective device is high resistance , when the over voltage brings for electric network shocked by thunder or other reasons , the protective device will rapidly transmit in ns , then lead the voltage into earth and protect the electric equipment . As the surge voltage through the protective device and after disappear it will recover to high resistance and not influence the normal operating.

Technical Parameters :


Item8-2758-44015-27540-44040-27540-44065-27565-440

Maximum continuous operating voltage

Uc

275V~

440~

275V~

440V~

275V~

440V~

275V~

440V~

Nominal discharge currrent:

In

2

2

5

5

15

15

20

20

Maximum discharge current

Imax

8

8

15

15

40

40

65

65

Voltage protect level Up

5kA

≤1.2kV

≤1.8kV

≤1.2kV

≤1.8kV

≤1.2kV

≤1.8kV

≤1.5kV

≤2.0kV

Response time ns

≤25ns

Max. fuse intensity

125AgL/Gg

100AgL/Gg



Short circuit current intensity

16AgL/Gg25AgL/Gg50AgL/Gg80AgL/Gg

Operating temperature area

40˚C ~+ 80˚C

Conductor section

Min 1.5mm?sibgle lead, max. 35mm multi-twisting lead/35mm single laed

Installation frame

35mm rail

Out case

red hot shrink material

Protection class

IP20

Dimension

one stnadard module width


Usage and application scope
BY20 type surge protective device (short name "SPD") is suitable for AC 50/60 Hz,380V and the following electric power systems,such as TT, IT, TN-S, TN-C, TN-C-S. It protects the electric network shocked by the thunder or over voltage .
Working condition:
 1.Height: not more than 2000m
 2. Operating temperature : normal -5~+40˚C       Enlarge range: -40~+80˚C
 3. Relative humidity: on condition that room temperature 30%~90%
 4. Installed at no notability shocked and virated place
 5. Don't be contained in explosion medium,the medium such as air and dust (including conduction dust ) shouldn't come to the degree that can corrode metal or damage insulation.

Model and meaning

Tripping device
There's tripping device designed on the modular of the protector. When the protector is over heat or shocked, the tripping device can automatically separate it from the electric net, at the same time showing the indication signal. It's green when the protector is normal, red when tripping.
Remote signaling contact
The products can be produced available with the accessory of remote signaling contact. If one or more of modular of the protector is in malfuction, the contact will be closed, and sending the malfunction signal.
Principal parameters
Maximum continuous operating voltage : Uc 275    440 V~
Test grade:II
Voltage protect level: Up≤ 1.2    1.8    2.0 kV
Maximum discharge current : (8/20μS) Imax    12    15    40    62kV
Nominal discharge currrent: (8/20μS) In    8    5    15    30kA
Remote communication terminal parameter

Type of remote communication terminal


Active

Terminal normal power

UN/IN

AC: 250V/0.5A DC: 250V/0.1A, 125V/0.2A, 75V/0.5A

Conductor section


Maximum single line: 1.5mm2

Main Structure and Operating Principle
n three-phase four- line system , three phase lines and one zero line are connected protective device to the earth cable . (figure 1 ) . In normal situation , the protective device is high resistance , when the over voltage brings for electric network shocked by thunder or other reasons , the protective device will rapidly transmit in ns , then lead the voltage into earth and protect the electric equipment . As the surge voltage through the protective device and after disappear it will recover to high resistance and not influence the normal operating.

Technical Parameters :


Item8-2758-44015-27540-44040-27540-44065-27565-440

Maximum continuous operating voltage

Uc

275V~

440~

275V~

440V~

275V~

440V~

275V~

440V~

Nominal discharge currrent:

In

2

2

5

5

15

15

20

20

Maximum discharge current

Imax

8

8

15

15

40

40

65

65

Voltage protect level Up

5kA

≤1.2kV

≤1.8kV

≤1.2kV

≤1.8kV

≤1.2kV

≤1.8kV

≤1.5kV

≤2.0kV

Response time ns

≤25ns

Max. fuse intensity

125AgL/Gg

100AgL/Gg



Short circuit current intensity

16AgL/Gg25AgL/Gg50AgL/Gg80AgL/Gg

Operating temperature area

40˚C ~+ 80˚C

Conductor section

Min 1.5mm?sibgle lead, max. 35mm multi-twisting lead/35mm single laed

Installation frame

35mm rail

Out case

red hot shrink material

Protection class

IP20

Dimension

one stnadard module width