Page 141 - Sace Emax 2 Catalogue

INSTALL ATION 7/7

Degree of protection Power losses
The SACE Emax 2 circuit breakers guarantee the To guarantee the performance of the electrical
following degrees of protection: switchgear in terms of rated uninterrupted cur-
• IP20 for circuit breakers in fixed or with- rent-carrying capacity, the design of the electrical
drawable versions, excluding the terminals. switchgear must take into consideration the
• IP30 for the front parts of the circuit breaker power losses of the apparatus and by live parts
when installed in switchgear with IP30 flange installed.
mounted on the door.
• IP54 for circuit breakers equipped with optional These power losses are measured according to
IP54 transparent flange fixed on the door in IEC60947 product standard. The values given in
front of the switchgear. the table below refer to total power for three and
four pole circuit breakers with balanced loads
with a current flow equal to rated uninterrupted
current "Iu" at 50/60Hz.

Circuit-breaker type Iu 630A 800A 1000A 1250A 1600A 2000A 2500A 3200A 4000A 5000A 6300A
E1.2 B/C/N [W] 31 50 78 122 201 - - - - - -
E2.2 B/N/S/H [W] - 34 53 83 136 212 267 - - - -
Fixed
E4.2 N/S/H/V [W] - - - - - - - 425 465 - -
E6.2 H/V/X [W] - - - - - - - - 309 483 767
E1.2 B/C/N [W] 62 100 156 244 400 - - - - - -
E2.2 B/N/S/H [W] - 72 113 176 288 450 550 - - - -
Withdrawable
E4.2 N/S/H/V [W] - - - - - - - 743 900 - -
E6.2 H/V/X [W] - - - - - - - - 544 850 1550

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