2-pair monobloc Data surge protector
DLU2-48DBC
DLU2-48DBC
Part Number: 640434
  • For DIN rail mounting
  • Monobloc housing
  • 2-pair
  • Un: 48 V
  • IEC 61643-21 compliance
  • UL497A
Installation Sheet

DLU2 surge protectors are designed to protect, against surge voltages due to lightning, terminals equipment connected to industrial buses, telecom lines or datalines. These surge protectors must be installed on symmetrical DIN rail and are available for most of the transmission lines: line voltage from 6 to 170V, bitrate up to 10 Mbit/s. These products are 2-pair surge protectors and are made with DIN rail monobloc enclosure


Network Fipway, WorldFIP, FieldBus-H2
Nominal line voltage Un 48 V
Max. DC operating voltage Uc 53 V
Max. load current IL 300 mA
Max. frequency f > 20 MHz
Insertion loss < 1 dB
Max. discharge current Imax 20 kA
Line inductance No
Protection mode(s) Common/Differential mode
Protection level Up 75 V
Max. shunt capacitance C < 50 pF
Impulse current Iimp 5 kA
Nominal discharge current In 5 kA
Technology GDT+Clamping diode
SPD configuration 2 pairs
Connection to Network screw terminal - cross section 0.4-1.5 mm²
Format DIN box
Mounting Symmetrical rail 35 mm (EN60715)
Housing material Thermoplastic UL94-V0
Operating temperature -40/+85°C
Protection rating IP20
Failsafe mode Short-circuit - transmision cut-off - fault mode 2
Disconnection indicator Transmission interrupt
Remote signaling of disconnection No
Max. number of pairs 2
Dimensions See diagram
Standards compliance IEC 61643-21 / EN 61643-21 / UL497A
Certification UL listed