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Model L2234 Apparatus Scale
L277B
Doc-Na 1SDH000460R0002
Page No.
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..110% Un
(CEI 60947-2 Standards). Accessories
10.
It can fitted with signalling contact for undervoltage release energized (C. This release carries out instantaneous service (*), but can supplied permanently (**).
Reference figures the electrical circuit diagrams: (4) (2) YO2 (B)
Power supply (Un) DC___________________ Operating limits (YO-YO2) 70.
The release power supply therefore branched the supply side the circuit-breaker from independent source.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 case permanent power supply the shunt opening release, you must wait for least before giving the opening control the shunt closing release.
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% . can used for remote
tripping (by means normally closed type pushbuttons), lock closing control the voltage the primary and secondary circuits.10.
24/158
.
Circuit-breaker closing possible with power supply voltage the release equivalent BS-110% Un. 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.. Most the releases
can operate with either direct alternating current.. (YC): 85% .
(*) the case instantaneous service, the minimum duration ofthe current impulse must 100 ms.1 lectrical cce sso rie s
S (Y02)
This allows remote opening closing control the apparatus. Most the releases can operate with either direct alternating
current.. order achieve this, you can fit the SACE Emax circuit-breakers with
a second shunt opening release.
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).)
440 AC
U lta (YU)
The undervoltage release opens the circuit-breaker the case considerable drop lack its power supply voltage. Circuit-breaker closing
is only allowed with the release powered (the closing lock carried out mechanically). aux YU).110% Un
Circuit-breaker opening takes place with power supply voltage values the release equivalent 70% Un. The second shunt opening release located the same seat the undervoltage release and its technical
characteristics are the same the standard shunt opening release..
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
