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order achieve this, you can fit the SACE Emax circuit-breakers with
a second shunt opening release. Most the releases can operate with either direct alternating
current.
Reference figures the electrical circuit diagrams: (4) (2) YO2 (B)
Power supply (Un) DC___________________ Operating limits (YO-YO2) 70.110% Un
(CEI 60947-2 Standards).
In some versions necessary have very high degree safety for the remote opening control the circuit-breaker, and, particular, the
duplication the control circuit the shunt opening release required..)
Model L2234 Apparatus Scale
L277B
Doc-Na 1SDH000460R0002
Page No.
(**) the case permanent power supply the shunt opening release, you must wait for least before giving the opening control the shunt closing release.1 lectrical cce sso rie s
S (Y02)
This allows remote opening closing control the apparatus. Circuit-breaker closing
is only allowed with the release powered (the closing lock carried out mechanically). Most the releases
can operate with either direct alternating current. Given the characteristics the circuit-breaker operating mechanism, opening
(with the circuit-breaker closed) always possible, whereas closing only possible when the closing springs are loaded. can used for remote
tripping (by means normally closed type pushbuttons), lock closing control the voltage the primary and secondary circuits.110% Un
Circuit-breaker opening takes place with power supply voltage values the release equivalent 70% Un..
24/158
. (YC): 85% .)
440 AC
U lta (YU)
The undervoltage release opens the circuit-breaker the case considerable drop lack its power supply voltage. This release carries out instantaneous service (*), but can supplied permanently (**).
Circuit-breaker closing possible with power supply voltage the release equivalent BS-110% Un. Accessories
10.
It can fitted with signalling contact for undervoltage release energized (C..
(*) the case instantaneous service, the minimum duration ofthe current impulse must 100 ms. aux YU).
Power supply (Un) DC
30 AC/DC______________
48 AC/DC______________
60 AC/DC______________
110-120 AC/DC_________
120-127 AC/DC_________
220-240 AC/DC_________
240-250 AC/DC_________
380-400 AC_____________
____________________________________ 440 AC_____________
Operating limits: (YO-YO2): 70% .10. The second shunt opening release located the same seat the undervoltage release and its technical
characteristics are the same the standard shunt opening release.110% Un
30 AC/DC________________ (CEI 60947-2 Standards)_________(YC) Un
48 AC/DC________________ Inrush power consumption (Ps) 200 W
60 AC/DC________________ Inrush power time ~100 200 VA
110-120 AC/DC__________ Continuous power (Pc) W
120-127 AC/DC__________ ____________________________________ ~
220-240 AC/DC__________ Opening time (YO YO2) (max) ms
240-250 AC/DC__________ Closing time (YC) (max) ms
380-400 AC______________ Insulation voltage 2500V (for min.
The release power supply therefore branched the supply side the circuit-breaker from independent source.
In uses where the shunt closing release supplied permanently, carry out the circuit-breaker reclosing operation after opening, necessary
to momentarily de-energize the shunt closing release (the circuit-breaker operating mechanism reclosing is, fact, fitted with antipumping
device)....
Reference figures the electrical circuit diagrams: (6)
Inrush power consumption (Ps): 200 W
AC 200 VA
Continuous power (Pc): W
AC VA
Opening time (YU): ms
Insulation voltage 2S00 (for min
