DS72R-48DC Type 1+2 48Vdc surge protector 2-pole

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DS72R-48DC Type 1+2 48Vdc surge protector 2-pole

Name: DS72R-48DC Type 1+2 48Vdc surge protector 2-pole
Brand: CITEL
SKU: DS72R-48DC
Availability: InStock
Rating: 5 (1 reviews)

Series

DS7x-48DC
Model

DS72R-48DC
Brand / Made in

CITEL / Pháp

2-poles surge protector 48 Vdc
Type 1 + Type 2
In 30 kA / Imax 70 kA
Remote signaling
Iimp 7 kA
Pluggable Module
IEC 61643-11, EN61643-11 and UL1449 ed.5 compliance

DC power networks are used in more and more applications and the threat of disturbances due to surge voltages must be taking in to account like for AC power lines.
DS72R-48DC surge protectors are designed to protect equipment connected to DC power supplies from lightning surges. It is based on varistors matched to the network voltage 48Vdc, the varistors have thermal disconnection devices to control any end-of-life case.

DS72R-48DC is DIN rail compatible and is connected in parallel on the line to be protected.

Product specifications

Product specifications
product manual
Download file

ELECTRICAL PROPERTIES

SPD type: 1+2
Network: 48Vdc
Nominal line voltage Un: 48 Vdc
Nominal DC voltage Un-dc: 48 Vdc
Max. DC operating voltage Uc: 65 Vdc
Operating current Ic: < 0.1 mA
PV Permanent Operating current Icpv: < 0.1 mA
Follow current If: None
Nominal discharge current In: 30 kA
Max. discharge current Imax: 70 kA
Total Maximum discharge current Imax Total: 140 kA
Impulse current by pole Iimp: 7 kA
Total lightning current Itotal: 14 kA
Connection mode(s): +/-/PE
Protection mode(s): Common mode/Differential mode
Protection level +/PE (-/PE) Up: 300 V

MECHANICAL PROPERTIES

Technology: MOV
SPD configuration: 2-poles
Connection to Network: By screw terminals: 4-25mm²
Format: Plug-in modular box
Mounting: Symmetrical rail 35 mm (EN 60715)
Housing material: Thermoplastic UL94 V-0
Operating temperature: -40/+85°C
Protection rating: IP20
Outdoor application: No
Failsafe mode: Disconnection from DC network
Disconnection indicator: 2 mechanical indicators
Spare module(s): DSM70R-48DC
Remote signaling of disconnection: DS72RS-48DC option : output on changeover contact
Dimensions: See diagram
Weight: 0.204 kg

NORMS

Standards compliance: IEC 61643-11 / EN 61643-11 / UL1449 ed.5

DECONNECTOR

Thermal disconnector: Internal
Fuses: 100 A min. - 125 A max. - Fuses type gG

Installation

DS72R-48DC surge protectors are connected in parallel on the DC network and must be equipped with external fuses for short-circuit current protection

The total length of parallel connection wires to DC 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. On some models, a distribution bus can be used.
The protection wire coming from the SPD must be connected to the bonding bar of the electrical panel. Paralleling the protection wire with phases conductors must be avoided.
Local earthing resistance must be in compliance with the electrical rules.