1-pair monobloc Telecom surge protector
DLC-12D3
DLC-12D3
Part Number: 641102
  • For 'DIN' rail mounting
  • All types of Telephone and Data lines
  • Monobloc housing and very compact
  • Protection of shield wire
  • IEC 61643-21 compliance

DLC compact 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 or on modular panel and are available for most of the transmission lines These products are 1-pair surge protectors with monobloc enclosure


Network RS232, RS485
Nominal line voltage Un 12 V
Max. DC operating voltage Uc 15 V
Max. frequency f max. > 3 MHz
Insertion loss < 1 dB
Max. load current IL 300 mA
Max. discharge current Imax 10 kA
Protection mode(s) Common/Differential mode
Protection level Up 30 V
Impulse current Iimp 2.5 kA
Nominal discharge current In 5 kA
Line resistance < 4.7 Ohm
Technology GDT+Clamping diode
SPD configuration 1-pair + shielded
Connection to Network by spring - max. cross section 1.5 mm²
Format DIN box
Mounting Symmetrical rail 35 mm (DIN 60715)
Housing material Thermoplastic UL94-V0
Operating temperature Tu -40/+85°C
Protection rating IP20
Failsafe mode Short-circuit - transmision cut-off - fault mode 2
Disconnection indicator Transmission interrupt
Dimensions See diagram
Standards compliance IEC 61643-21 / EN 61643-21 / UL497A
Certification UL listed