Contact : +33 1 41 23 50 23 (9:00 – 17:00 CEST)
CITEL
Company History
Specialist in overvoltage protection
Locations
Test Facilities
citel and the environment
Service quality
Lightning Surges
Lightning and Transient overvoltages
The origin of overvoltages
Keraunic levels
Effects of lightning
Surge protectors
The "surge protection" solution
International Standards
SPD mandatory or not?
GDT overview
Citel's VG Technology
New range SPDs AC-DC
CTC Technology
New PV range: DPVN
New : SPD + Counter
Protection Kit
Products
AC Power
Photovoltaic
LED
Telecom
Dataline
Radiocommunication
Miscellaneous
Applications
Datacenter
E-Mobility
LED
Radiocommunication
Security Systems
Industrial Installation
Wind Turbine Installation
Domestic/Off-grid Photovoltaic
Industry Photovoltaic
Solar Farms
Agrivoltaic
Energy storage sytems
Water Treatment
Services
Downloading
partnership
Contact
Log in
Create an account
Online sales for France only
Product ranges
AC Power
Photovoltaic
LED
Telecom
Dataline
Radiocommunication
image/svg+xml
Wind Turbine
Accessories
Telecom
Telecom/Data surge protector - 1 to 4 pairs
B280-48D3
2-pair Data surge protector unit
B280-48D3
Part Number
72774
2-pair surge protection unit
48 V
Removable protection circuit
Wall mounting and screw connection
UL497 A&B
Datasheet
Installation Sheet
Tender specifications
Contact Us
The B280 units are designed to protect terminals connected to telephone or data networks. The protection printed circuit is removable for easy and fast maintenance (S280). These compact boxes are designed for wall mouting and screw connection.
Select another reference:
B280-06D3
B280-12D3
B280-24D3
B280-48D3
B280-48DBC
B280-T
Electrical Properties
Mechanical Properties
Norms
Schemas
Network
RNIS-T0, 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
@ In (8/20 µs)
Up L/L
70 V
Protection level
@ In (8/20 µs)
Up L/PE
20 V
Line resistance
< 4.7 Ohm
Technology
GDT+Clamping diode
SPD configuration
2 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)
S280-48D3
Dimensions
See diagram
Weight
0.11 kg
Standards compliance
IEC 61643-21 / EN 61643-21 / UL497A
Certification
UL 497B
×
Description:
2-pair Data surge protector unit
Standards compliance:
IEC 61643-21 / EN 61643-21 / UL497A
Certification:
UL 497B
Technology:
GDT+Clamping diode
SPD configuration:
2 pairs
Network:
RNIS-T0, 48 V line
Max. DC operating voltage:
53 Vdc
Max. discharge current :
20 kA
CITEL
Reference:
B280-48D3
Part Number:
72774
Or equivalent
Select your protection
Discover our new video!
Read more
Citel presents its new range AC and DC SPDs
Read more