4-pair Telecom surge protector unit

B480-T
Part Number 72746
B480-T
  • 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
 No
Protection mode(s)
 Common/Differential mode
Protection level
@ In (8/20 µs)
 Up L/L 220 V
Protection level
@ In (8/20 µs)
 Up L/PE 20 V
Type of diagram
 A
Line resistance
 < 4.7 Ohm
Technology
 GDT+Clamping 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 / UL497A
Certification
 UL listed