Page 18 - Sace Emax 2 Catalogue

2/4 SACE EMA X 2 LOW VOLTAGE AIR CIRCUIT-BRE AKERS

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SACE Emax 2 switch disconnectors

Switch disconnectors, identified with the abbre- The device, when in the open position, guarantees
viation “/MS”, are devices that satisfy the isolat- an isolating distance between the main contacts
ing specifications provided by the IEC 60947-3 of the circuit breaker that is sufficient to ensure
Standard. The switch disconnectors are derived that the installation downstream is not live.
from the corresponding automatic circuit break- Furthermore the switch disconnectors, if used
ers, and they have the same dimensions and ac- with an external protection relay with maximum
cessory options. delay of 500ms, enable a breaking capacity at a
This version differs from the automatic circuit- maximum rated operating voltage (Ue) equal to
breakers only because of the absence of protec- the value of rated short-time withstand current
tion trip units. (Icw) for one second.

Common data
Rated service voltage Ue [V] 690
Rated insulation voltage Ui [V] 1000
Rated impulse withstand voltage Uimp [kV] 12
Frequency [Hz] 50 - 60
Number of poles 3- 4
Version Fixed - Withdrawable
Suitable for isolation according to IEC 60947-3

SACE Emax 2 E1.2 E2.2 E4.2 E6.2
Performance levels B/MS N/MS B/MS N/MS H/MS N/MS H/MS V/MS H/MS X/MS
Rated uninterrupted current Iu @ 40°C [A] 630 250 1600 800 800 3200 3200 2000 4000 4000
[A] 800 630 2000 1000 1000 4000 4000 2500 5000 5000
[A] 1000 800 1250 1250 3200 6300 6300
[A] 1250 1000 1600 1600 4000
[A] 1600 1250 2000 2000
[A] 1600 2500 2500
Neutral pole current-carrying capacity for 4-pole CBs [%Iu] 100 100 100 100 100 100 100 100 50-100 50-100
Rated short-time withstand (1s) [kA] 42 50 42 66 85 66 85 100 100 120
current Icw (3s) [kA] 24 30 42 50 66 50 75 1) 75 100 100
Rated short-circuit making 400-415 V [kA] 88 105 88 145 187 145 187 220 220 264
capacity (peak value) Icm 440 V [kA] 88 105 88 145 187 145 187 220 220 264
500-525 V [kA] 88 105 88 145 187 145 187 220 220 264
690 V [kA] 88 105 88 145 187 145 187 220 220 264
Utilization category (according to IEC 60947-3) AC-23A AC-23A AC-23A AC-23A AC-23A AC-23A AC-23A AC-23A AC-23A AC-23A
Dimensions H - Fixed / Withdrawable [mm] 296 / 363.5 296 / 363.5 371 / 425 371 / 425 371 / 425 371 / 425 371 / 425 371 / 425 371 / 425 371 / 425
D - Fixed / Withdrawable [mm] 183 / 271 183 / 271 270 / 383 270 / 383 270 / 383 270 / 383 270 / 383 270 / 383 270 / 383 270 / 383
W - Fixed 3p/4p/4p FS [mm] 210 / 280 276 / 366 384 / 510 762 / 888 / 1014
W - Withdrawable 3p/4p/4p FS [mm] 278 / 348 317 / 407 425 / 551 803 / 929 / 1069
1) E4.2H/MS 3200A: 66KA Icw (3s)

SACE Emax 2 E1.2 E2.2 E4.2 E6.2
Mechanical life with regular ordinary [Iu] < 1000 1000 1600 < 1600 1600 2000 2500 < 2500 2500 3200 4000 4000 5000 6300
maintenance prescribed by the manufacturer
[No. cycles x 1000] 20 20 20 25 25 25 20 20 20 20 15 12 12 12
Frequency [Oper./Hour] 60 60 60 60 60 60 60 60 60 60 60 60 60 60
Electrical life with regular 440 V [No. cycles x 1000] 8 8 8 15 12 10 8 10 8 7 5 4 3 2
ordinary maintenance 690 V [No. cycles x 1000] 8 6.5 6.5 15 10 8 7 10 8 7 4 4 2 2
prescribed by the manufacturer
Frequency [Oper./Hour] 30 30 30 30 30 30 30 20 20 20 20 10 10 10