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4-pair Telecom surge protector unit

B480-T
Part Number 72746
B480-T
Availability:
€74.00 (excl. tax)
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Available within 3 weeks

  • 4-pair surge protection unit
  • For Telephone lines
  • Removable protection circuit
  • Wall mounting and screw connection
  • UL497 A&B
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The B480 units are designed to protect terminals connected to telephone or data networks. The protection printed circuit is removable for easy and fast maintenance (S480). These compact boxes are designed for wall mouting and screw connection.
Select another reference:
Network

RTC, ADSL, SDSL, SHDSL
Nominal line voltage
 Un

150 V
Max. DC operating voltage
 Uc

170 Vdc
Max. frequency
 f max.

10 MHz
Insertion loss

< 1 dB
Max. discharge current
max. withstand @ 8/20 µs by pole
 Imax

20 kA
Line inductance (± 10 %)

non
Protection mode(s)

Common/Differential mode
Protection Level
C3 (10/1000μs), 300 applications@10 A, X-X (Line/Line)
 Up

220 V
Protection level
C3 (10/1000μs), 300 applications@10 A, X-C (Line/Earth)
 Up

20 V
Type of diagram

A
Line resistance

< 4.7 Ohm
Technology

GDT+TVS diode
SPD configuration

4 pairs
Connection to Network

By screw terminal: cross section 0.4-1.5mm²
Format

Wall mounting box
Mounting

Wall mounting by screws (not supplied)
Housing material

Thermoplastic UL94 V-0
Operating temperature
 Tu

-40/+85°C
Protection rating

IP20
Failsafe mode

Short-circuit - transmision cut-off - fault mode 2
Spare module(s)

S480-T
Remote signaling of disconnection

No
Dimensions

See diagram
Weight

0.138 kg
Standards compliance

IEC 61643-21 / EN 61643-21 / UL497B
Certification

UL listed