DLAH-48D3 1-pair DIN rail plug-in ISDN-T0 48V line surge protector

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DLAH-48D3 1-pair DIN rail plug-in ISDN-T0 48V line surge protector

Name: DLAH-48D3 1-pair DIN rail plug-in ISDN-T0 48V line surge protector
Brand: CITEL
SKU: DLAH-48D3
Availability: InStock
Rating: 5 (1 reviews)

Series

DLAH
Model

DLAH-48D3
Brand / Made in

CITEL / FRANCE

1-pair DIN rail plug-in Data surge protector
Network: IDSN, 48 V line
Standards compliance: IEC 61643-21 / EN 61643-21 / UL497B
Certification: UL Listed
Technology: GDT+TVS diode
SPD configuration: 1-pair+shielded
Max. DC operating voltage: 53 Vdc
Max. discharge current : 20 kA
Coordination inductor
Up to 2.4 A line current
Protection level 70 V
Cut-off frequency > 1.8 MHz

DLA-48D3

DLAH-48D3 is one of Citel's DIN signal line surge protectors, used exclusively for 48V or ISDN-T0 transmission lines, mounted in series on a pair of signal wires + shield, to protect data transmitting and receiving devices from damage caused by lightning and switching overvoltage.

Product specifications

Product specifications
product manual
Download file

ELECTRICAL PROPERTIES

Network: IDSN, 48 V line
Nominal line voltage Un: 48 V
Max. DC operating voltage Uc: 53 Vdc
Max. frequency f max.: > 1.8 MHz
Max. load current IL: 2.4A
Max. discharge current Imax: 20 kA
Line inductance: 10 µH
Protection level Up: 70 V
Impulse current Iimp: 5 kA
Nominal discharge current In: 5 kA

MECHANICAL PROPERTIES

SPD configuration: 1-pair+shielded
Connection to Network: By screw terminal: cross section 0.4-1.5mm²
Mounting: Symmetrical rail 35 mm (EN 60715)
Housing material: Thermoplastic UL94 V-0
Protection rating: IP20
Failsafe mode: Short-circuit
Spare module(s): DLAHM-48D3
Dimensions: See diagram

NORMS

Standards compliance: IEC 61643-21 / EN 61643-21 / UL497B
Certification: UL Listed

Installation

DLAH-48D3 surge protectors are connected in serial on the network.
The protected equipment must be nearby (protector/equipment distance less than 10 m long). If this rule cannot be followed, «secondary» protection must be installed near the equipment (coordinated surge protection).
The total length connection wires to network must be lower than 0.5 m in order not to increase the protection level (Up) provided by the SPD.
Wiring is made by screw connections.
The protection wire coming from the SPD must be connected to the bonding bar of the electrical panel.
Local earthing resistance must be in compliance with the electrical rules.