DSB51XXS CARLO GAVAZZI Selected parameters MONITORED VARIABLE Surge protection Others





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Selected parameters MONITORED VARIABLE Surge protection Others

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Energy Meters Control Analizers


Monitoring Relays and Measurement Current Transformers

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Monitoring Relays
Surge Arresters for communication systems
Type DSB S
• Universal surge arrester for 2-wires communication buses
• Perfect choice for RS485 and RS serial lines
• Dual technology with GDT and tranzorb
• DIN-rail mounting
• Replaceable plug in module
Product Description Ordering Key
DSB 51 X X S
DSB51XXS is a surge pro- tecting device that has been specifically designed for 2 and 4 wires communi- cation buses at 5V (eg. RS485, RS422 (with 2 devices) and Modbus RTU
), measuring, controlling and regulating devices used in industrial and resi- dential environments. It can also be used for pro- tecting from overvoltages
Type Selection
devices such as inverters, energy meters, interface protections (coupling devices), control and acquisitions systems in photovoltaic installations that are interconnected by means of serial communi- cation lines. The construc- tion is DIN rail mounting and the cartridge is replaceable.
Mounting din Surge Arrester Type
Item number Output Network Serial
Code Description Nominal voltage of the system
Output relay Cartridge
DSB51XXS Surge arrester for 2-wire communication bus 5V No Yes
General Specifications
Nominal operating voltage Un
Max. continuous oper. voltage Uc
Rated spark over voltage
(SG-PG) 184-276V
(a-b), (a, b-SG) 6-8V
Nominal discharge current In
(8/20usec) 10kA
Max discharge current Imax
(8/20usec) 20kA
Rate operating current @ 25°C IL
Transverse capacitance C
(a, b-SG) 50pF
(SG-PG) 5pF
Insultation resistance of the protection
(a-b) ≥5kohm/
Series resistance 1.6ohm ÷ 2ohm Protection distance 10 m (suggested value) Coarse protection 3 terminal GDT
Mode of protection Longitudinal, Transverse
Operating temperature -40 to +80 °C
Protection degree IP 20
Residual voltage @ 5kA
(8/20usec) <22V (line-line)
Response time
of overload protection ta
(a, b-SG) <1ns
(SG-PG) 100nsec
Limit frequency 30MHz
Housing material Thermoplastic gray
extinguishing degree V-O
Terminal cross section Multi-strand to 4mm2
Mounting EN 60715 On a 35mm DIN rail
Design Replaceable plug-in module
Dimensions H90 x L12 x P71.5mm
CE Marking Yes
Specifications are subject to change without notice. Pictures are just an example. For special features and/or customization, please ask to our sales network. REV0 120214 1

Datasheet - PDF

pdf1-mostradoSelected parameters MONITORED VARIABLE Surge protection Others - CARLO GAVAZZI - DSB51XXS English179 Kbytespdf1-mostradoSelected parameters MONITORED VARIABLE Surge protection Others - CARLO GAVAZZI - DSB51XXS
pdf1-Selected parameters MONITORED VARIABLE Surge protection Others - CARLO GAVAZZI - DSB51XXS English12 Mbytespdf1-mostradoSelected parameters MONITORED VARIABLE Surge protection Others - CARLO GAVAZZI - DSB51XXS

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