2CSC421002B0201

Residual currentprotection withoutunwanted trippingAP range of RCCB andRCD blocks

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The problem

Unwanted nuisance tripping

The IEC 61008 andIEC 61009standards imposethe use of a 0.5 µs/100 kHz dampedoscillator wave (ringwave) to test theability of residualcurrent protectiondevices to withstandoperationaldischarges. AllRCCBs and RCDblocks must passthe test with a peakcurrent equal to200 A.With regard toatmosphericdischarges, IEC61008 and 61009standards establishthe 8/20 µs surgecurrent test with3000 A peak currentbut limit therequirement toresidual currentprotection devicesclassified asselective. No test isrequired for othertypes.

Standards

If there isdisturbance on theelectric network,RCCBs or RCDblocks which arenormally in theinstallation trip andinterrupt the circuiteven if there is noreal fault.

Disturbance of thiskind is mostcommonly causedby:

- operationaldischargesproduced byconnecting ordisconnecting ofloads (opening orclosing of

protection andcommanddevices, startingand stopping ofmotors, switchingon and off offluorescentlighting, etc.); ifconditions in thecircuit areabruptlymodified, thiscauses temporarydisturbances suchas impulsevoltages at highfrequency;

- atmosphericdischarges causedby direct orindirect lightningonto the power

line; whenlightning strikes, itgenerates anelectromagneticfield whichproduces atransient impulsevoltage in thenetwork; thisgeneratescapacitive earthleakage in thenetwork cables.

In thesecircumstances, thenuisance tripping ofthe residual currentprotection device isunwanted since itdoes not prevent therisks caused bydirect and indirect

contact.A sudden andunjustified cut off ofthe power supply,on the other hand,may cause veryserious problemsand jeopardize thecontinuity of serviceof refrigerators,freezers, computers,lighting and air-conditioningsystems, burglaralarms, datatransmissionsystems, etc.

2CS

C42

1102

F090

1

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The ABB solution

AP range of RCCB and RCD blocksThe AP range of anti-nuisance trippingRCCBs and RCDblocks of ABB SACEpass the ring wave testat 0.5 µs/100 kHz andalso withstand the8/20 µs impulse withthe same peak currentof 3000 A prescribedfor selective devices.For this reason, theyoffer the most directsolution to theproblem of unwantedtripping caused byatmospheric oroperationaldischarges.The electroniccomponents they areequipped with iscapable ofdistinguishingbetween temporaryleakage caused bynetwork disturbancesand permanentleakage caused byactual faults and onlyopens the circuit if thelatter occurs.A slight delay in thetripping time has alsobeen introduced intothe AP range of RCCBsand RCD blockswhich neverthelessrespects the safetylimits imposed by thestandards (trippingtime at

2 I∆n ≤ 150 ms).When installed inelectric circuits, theytherefore preventunwanted tripping ininstallations in theresidential andcommercial sectorwhere continuity ofservice is importantand, at the same time,guarantee traditionalresidual currentprotection.

The AP range ofRCCBs and RCDblocks are available inA and AC types and in2P and 4P versions

with rated currents of25 A and 63 A.Sensitivity equal to30 mA guaranteesprotection againstindirect contact andadditional protectionagainst directcontact.

2CS

C42

1104

F090

1

MCB S 282 C 100

SPD OVR 165 P

T

Anti-nuisancetripping circuit

breaker F 362 AP- 25 A, 30 mA

Anti-nuisancetripping blockDDA 62 AP -

25 A + S 242 C16

RCBODS 941 C25 -

30 mA

T

RCBODS 941 C25 -

30 mA

T T

MCBS 941 C 10

MCBS 941 C 10

SPDOVR 140 P

SPDOVR 11

SPDOVR 11

Other circuitsLight line

NC machinery(eg. lathe,

millling machine,drill…)

PCPC

To obtain continuity of service forpriority circuits and, at the sametime, protect the loads andinstallations from transientovervoltage peaks, we recommendcombining the AP range of RCCBsand RCD blocks with OVR surgeprotective devices (SPD).

For more effective and extensiveprotection, a cascaded system onseveral levels, as shown in thediagram, may be useful.

2CS

C42

1103

F020

1

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Technical characteristics

DDA60 AP DDA70 AP F360 AP F370 APStandards IEC 61008 – IEC 61009Type AC A AC ASize [A] 25, 63No. of poles 2,4Rated voltage Ue - AC [V] 230/400Max. operating voltage, Ub max [V] 440Min. operating voltage, Ub min [V] 195 110Rated residual 2P [kA] - 0.5 1.5breaking capacity I∆m 4P [kA] - 1.5 1.5

with S240 [kA] 4.5with S250 [kA] 6 5 5with S270 [kA] 7.5 6 6

with S280 (In 10..25A) [kA] 12.5 6 6with S280 (In 32..63A) [kA] 7.5 6 6

with S290 [kA] 7.5 5 5Voltage withstanding impulse (1.2/50) [kV] 5 6capacity at rated frequency. (1 min) [kV] 3 2.5Max. oper. voltage of circuit test [V] 440 254Min. oper. voltage of circuit test [V] 195 110Surge current resistance 3000 A peak (8/20µs wave)Rated frequency [Hz] 50…60Rated sensitivity I∆n [A] 0.03Tripping threshold AC type 0.5…1 I∆n 0.5…1 I∆n 0.5…1 I∆n 0.5…1 I∆n

A type 0.11…1.4 I∆n 0.11…1.4 I∆nDissipated power per pole 2P 25A [W] 2.5 1

2P 63A [W] 3 2.84P 25A [W] - 14P 63A [W] 3.5 3.2

Resistance per pole 2P 25A [mΩ] 4 1.62P 63A [mΩ] 0.7 0.74P 25A [mΩ] - 1.64P 63A [mΩ] 0.9 0.8

Toggle Blue, operating only Blue, sealable infrom OFF position ON-OFF position

Electrical life 10000Mechanical life 20000Protection degree housing IP4X/IPXXD (installed)

terminals IP2X/IPXXB (frontal)Self-extinguishing degree V0 thickness 1.6 UL 94 yellow paperMechanical shock resistance 26 g half wave, duration 6 ms, 2000 shocksResistance to vibrations acc. to IEC 68-2-6 Minimum 5 g, duration 30 minutes, frequency 0…80HzTropicalization [°C/RH] Humid heat 28 cycles with 55/95…100acc. IEC 68-2 [°C/RH] Constant climatic conditions 23/83 – 40/93 – 55/20

[°C/RH] Variable climatic conditions 25/95 – 40/95Ambient temperature [°C] -5…+55Storage temperature [°C] -20…+70Terminal size [mm2] 25Mounting on DIN EN 50022 rail (35 mm)Weight 2P [g] 190/210 345/355

4P [g] 270/330 460

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DESCRIPTION ORDER CODE SINGLE EAN CODE MULTIPLE EAN CODEDDA62 AP 25A 30mA 16259490 8012542517207 8012542517214DDA62 AP 63A 30mA 16259508 8012542517306 8012542517313DDA64 AP 63A 30mA 16259482 8012542517108 8012542517115DDA72 AP 25A 30mA 16259516 8012542517405 8012542517412DDA72 AP 63A 30mA 16258880 8012542510901 8012542510918DDA74 AP 63A 30mA 16258872 8012542511007 8012542511014F362 AP 25A 30mA 16256678 8012542516705 8012542516712F362 AP 63A 30mA 16256553 8012542510505 8012542510512F364 AP 25A 30mA 16256694 8012542516903 8012542516910F364 AP 63A 30mA 16256579 8012542510703 8012542510710F372 AP 25A 30mA 16256686 8012542516804 8012542516811F372 AP 63A 30mA 16256561 8012542510604 8012542510611F374 AP 25A 30mA 16256702 8012542517009 8012542517016F374 AP 63A 30mA 16256587 8012542510802 8012542510819

Overall dimensions

Order codes

2CS

C42

1105

F020

1

2P 25 A - 63 A

35

T

45

45

45

6

68

43.52P

T

35

4P

T

70

2 modules 4 modules

45

74

68

94 45

DDA 62 APDDA 72 AP

DDA 64 APDDA 74 AP

45

74

68

94 45

4P 63 A

70

T

2 modules 4 modules

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2CS

C42

1002

B02

01 -

04-

02P

rinte

d in

Ital

yT

ipog

rafia

ABB SACE S.p.A.Line Protection DevicesViale dell’Industria, 1820010 Vittuone (MI) - ItalyTel.: +39 02 9034 1 - Telefax: +39 02 9034 7609

http://www.abb.com

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