Page 139 - Surge-Protection-E_0.pdf

Selection Guide according to Interface / Signal

Bus systems and measuring and control equipment Page 135 – 144
Telecommunication systems, telephone systems Page 145 – 148
Data networks Page 149 – 150
Antenna systems, broadband systems, transmitting and receiving systems, video systems Page 151 – 153
This selection guide serves as a general source of orientation.
In practice, there may be other interface parameters. Therefore, we recommend to checking whether the electrical Selection Guide
parameters are suited for the interface to be protected before using the arrester.

Bus systems and measuring and control equipment

Mounting Connection Protected Monitor- SPD class
Interface / Signal on system lines ing Type SPD Part No. Page
0-20 mA, 4-20 mA Spring terminals 2 1 927 224 157
(also with HART)
Screw terminals 4 1 920 324 1) 163
Screw terminals 2 1 920 224 1) 166
Spring terminals 2 1 927 924 183
Wires / Terminals 2 2 929 921 206
LSA 20 1 907 401 197
+ 907 422 + 907 498 199
4-20 mA Spring terminals 2 1 927 244 157
(also with HART) acc. to
NAMUR recommendation Screw terminals 4 1 920 344 1) 163
NE 21 or according to
EN 61000-4-5, open-circuit Screw terminals 2 1 920 244 1) 166
voltage 1 kV line-PG
Spring terminals 2 1 927 944 183

Wires / Terminals 2 2 929 941 206
LSA 20 1 907 401 197
+ 907 442 + 907 498 199
3/4 conductor Screw terminals 4 1 920 350 1) 164
measurement
Screw terminals 4 1 920 354 1) 164
ADVANT Spring terminals 2 1 927 271 157
Screw terminals 4 1 920 370 1) 164

Screw terminals 2 1 920 270 1) 166
Spring terminals 2 1 927 971 183
Screw terminals 5 2 918 401 192
AS interface Spring terminals 2 1 927 245 157
Screw terminals 4 1 920 345 1) 163

Screw terminals 2 1 920 245 1) 165
Spring terminals 2 1 927 945 183
BACnet/IP RJ45 4 x 2 2 929 100 212
RJ45 4 x 2 2 929 121 212

RJ45 4 x 2 2 929 126 212
RJ45 4 x 2 2 929 221 211
RJ45 4 2 909 321 217

1) with universal base part BXT BAS (Part No. 920 300) or BSP BAS 4 (Part No. 926 304) please refer to page 161
2) with universal base part BXT BAS EX (Part No. 920 301) please refer to page 173
Valid as of August 1, 2020 Detailed product information can be found on our website 135