Thông tin sản phẩm

Thiết bị bảo vệ chống cháy nổ loại EX-SN-〔〕

 

Explosion-proof protective device EX-SN-〔〕 type

拡大

 

This protective device can be used in explosion proof areas. It is used in explosion risk areas, such as chemical plants and petroleum refineries, etc., to provide protection for communication and control cables, etc., against irregular voltage from lightning surges

Certification of Explosion-proof is only applied in Japan.  
In other countries case, please consult to us.

 
 
 
Main performance features
 
・EX-SN-〔〕 type
The following three types of protective device are available.
(for SN-N1 type × 2, SN-H2-H1 type × 1)
EX - SN - 06 06 03
 
Abbr. SPD format Use
1 SN-EN1 General public telephone lines, ADSL lines (telemetry lines)
2 SN-EN3
3 SN-H2-H1 RS422 circuit
4 SN-H3-H2 RS485 circuit
5 SN-K2 Control circuit up to AC110V
6 SN-N1 Transmission circuits, measurement circuits, control circuits (for balanced lines)
7 SN-NM
51 SN-E1a 4 to 20mAcircuit (Maximum circuit voltage 12.5V) suppresses voltage between earths and on lines.
52 SN-E1b Same as above (Maximum circuit voltage 21.5V)
53 SN-E1c Same as above (Maximum circuit voltage 29.0V)
54 SN-E1d Same as above (Maximum circuit voltage 54.0V)
61 SN-H3a 4 to 20mAcircuit (Maximum circuit voltage 12.5V) suppresses voltage between earths and on lines.
62 SN-H3b Same as above (Maximum circuit voltage 21.5V)
63 SN-H3c Same as above (Maximum circuit voltage 29.0V)
64 SN-H3d Same as above (Maximum circuit voltage 54.0V)