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1-pair Data surge protector unit

Part Number 510402
  • Compact 1-pair surge protection unit
  • 48 V
  • Removable protection circuit
  • Wall mounting and screw connection
  • UL497 A&B

The B180 units are designed to protect terminals connected to telephone or data networks. The protection printed circuit is removable for easy and fast maintenance (S180). These compact boxes are designed for wall mouting and screw connection.

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48 V line
Nominal line voltage
Un 48 V
Max. DC operating voltage
Uc 53 Vdc
Max. frequency
f max. > 3 MHz
Insertion loss
< 1 dB
Max. discharge current
max. withstand @ 8/20 µs by pole
Imax 20 kA
Protection mode(s)
Common/Differential mode
Protection level
Following the test category C3 (IEC61643-21) - Line/Line
Up 70 V
Protection level
Following the test category C3 (IEC61643-21) - Line/PE
Up 20 V
Line resistance
< 4.7 Ohm
GDT+Clamping diode
SPD configuration
1 pair
Connection to Network
By screw terminal: cross section 0.4-1.5mm²
Wall mounting box
Wall mounting by screws (not supplied)
Housing material
Thermoplastic UL94 V-0
Operating temperature
Tu -40/+85°C
Protection rating
Failsafe mode
Short-circuit - transmision cut-off - fault mode 2
Spare module(s)
See diagram
Standards compliance
IEC 61643-21 / EN 61643-21 / UL497A
UL 497B