DLA2-12D3 2-pair DIN-rail plug-in Data surge protector for RS232/RS485

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DLA2-12D3 2-pair DIN-rail plug-in Data surge protector for RS232/RS485

Name: DLA2-12D3 2-pair DIN-rail plug-in Data surge protector for RS232/RS485
Brand: CITEL
SKU: DLA2-12D3
Availability: InStock
Rating: 5 (1 reviews)

Series

DLA2
Model

DLA2-12D3
Brand / Made in

CITEL / FRANCE

Din rail plug-in surge protector
2-pair
Un: 12 V
Shield wire protection
Plug-out without line cut-off
IEC 61643-21 compliance
UL497A

DLA protect I&C, telecommunication equipment and data technology systems from lightning effects and surges. Designed for DIN rail mounting, these surge protectors can be used for all applications with voltages from 6 V to max. 170 V and transmission rates up to 10 Mbit/s and protect one (DLA) to two (DLA2) pairs with a plug-in protection module. The electrical circuit of the DLA consists of a combination of high-performance gas discharge tubes and fast-switching diodes for high discharge capacity and fast response behaviour. The shield connection is additionally earthed via a gas discharge tube. The earthing connection is conveniently made via the top-hat rail. When the plug-in module is unplugged, the transmission signal is not interrupted. Special versions: DLAH are protective devices for applications with higher current values, operating current for connected operating devices up to 2.4 A. DLAW is a version which interrupts the signal transmission when the protection module is pulled out. D3 types aim to realize fine protection and D2 types is specific for floating applicaiton.

Product specifications

Product specifications
product manual
Download file

ELECTRICAL PROPERTIES

Network: RS232, RS485
Nominal line voltage Un: 12 V
Max. DC operating voltage Uc: 15 Vdc
Max. frequency f max.: > 3 MHz
Max. load current IL: 300 mA
Max. discharge current Imax: 20 kA
Line inductance: No
Protection level Up: 30 V (L/L), 20 V (L/PE)
Impulse current Iimp: 5 kA
Nominal discharge current In: 5 kA

MECHANICAL PROPERTIES

SPD configuration: 2-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): DLA2M-12D3
Dimensions: See diagram

NORMS

Standards compliance: IEC 61643-21 / EN 61643-21 / UL497A

Installation

DLA2-12D3 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.