DSB54XP275 CARLO GAVAZZI Selected parameters MONITORED VARIABLE Surge protection Others SIZE 72 mm POWER SU.. View larger
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DSB54XP275 CARLO GAVAZZI Selected parameters MONITORED VARIABLE Surge protection Others SIZE 72 mm POWER SU..

DSB54XP275

CARLO GAVAZZI

Selected parameters MONITORED VARIABLE Surge protection Others SIZE 72 mm POWER SUPPLY RANGE Type 2 MONITORING FUNCTION Protection for AC systems MOUTING DIN-rail INPUT RANGE 280 VAC

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Monitoring Relays
Surge Arresters forAC systems
Type DSB54
• Category IEC / EN / VDE: Class II/Type 2/C
• Connection to TN-S, IT and TT networks
• MOV or MOV & GDT protection
• Modular design housing
• Replaceable cartridges
• DIN rail Mounting
• IEC 61643-1 compliant
Product Description
Ordering Key
Type Poles Contact Three Phase MCOV
GDT
Type Selection
DSB54 X P 275 N
DSB54 series of over- voltage surgeprotection devicesis suitablefor the protection of three phase AC mains con- nected devices fromthe effects of indirect light- ning discharges and induced voltages andis intended toprovide pro- tectionin zones 1-2 per IEC 62305. The modulesconsist in either an high perfor- manceVaristor(MOV) blockwith thermaldis-
connection deviceoran encapsulated air gap device(GDT) whichis usedasa galvanic sep- aration betweenNand PE conductors. Plug in modules facilitate replacement of failed modules onsitewithout theneedofreplacing and rewiring the whole block.
Contact
None X
1 (relay)C
Max. Continuous Oper. Voltage
MCOV 275Vac/350Vdc275
385Vac/500Vdc385
440Vac/580Vdc440
GDT No (4+0) - (nil)
Yes (3+1)N
Cartridges
Ordering Codes
MOV
for MCOV 275 arrestersDS0275 for MCOV 385 arrestersDS0385 for MCOV 440 arrestersDS0440
GDT (only for DSB54xxxxxN types)
GDT cartridgeDS0255N
Electrical characteristicswithoutGDT (4+0) DSB54xPxxx versions
Max. Continuous Oper. Voltage Uc
MCOV275Vac / 350Vdc
385Vac / 500Vdc
440Vac/580Vdc
Nominal discharge current In
(8/20) 20kA per pole (40kA)
Max discharge currentImax
(8/20) 40kA per pole (80kA)
Protection levelUp
275<1.5kV
385<1.9kV
440<2.2kV
Follow current If NO Response time tA<25ms Thermal protectionYES Back-up fuse (if mains >125A) 125A gL
Short-circuit withstand current 25kA/50Hz
Electrical characteristicswith GDT (3+1) DSB54xPxxxN versions
Protection levelUp
Max. Continuous Oper. Voltage Uc
MCOV275Vac / 350Vdc
385Vac / 500Vdc
Nom. discharge currentIn
(8/20)
L-N20kA
N-PE20kA
Max discharge currentImax
(8/20)
L-N40kA
N-PE40kA
275 L-N <1.5kV
385 L-N <1.9kV
440 L-N <2.2kV
N-PE<2.0kV
Follow currentIf
N-PE>100ARMS
Response time tA
L-N25ms
N-PE100ms
Thermal protectionYES
Back-up fuse
L-N125A gL
Short-circuit withstand current
L-N25kA/50Hz
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 071113 1

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