L2275
Emax
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Doc. N°
Mod.
Apparatus
Scale
Page N°
RH0109002
Caption
= Number of figure of the diagram
*
= See the note indicated by the letter
A 1
= Applications of the power circuit breaker
A13
= PR020/K signaling unit (only provided with PR112/P-A, PR112/PD-A, PR113/P-A or PR113/PD-A trip unit)
A 3
= Applications located on the cradle of the power circuit breaker (only provided with draw out version power circuit breakers)
A 4
= Indicative apparatus and connections for control and signaling, outside the power circuit breaker
AY
= SACE SOR TEST UNIT: control/monitoring unit (see note R)
D
= Electronic time-delay device of the undervoltage release, outside the power circuit breaker
F1
= Fuse with delayed intervention
K51
= PR111-A, PR112/P-A, PR112/PD-A, PR113/P-A or PR113/PD-A type electronic trip unit with the following protection functions
(see note G):
- L against overload with inverse long delay trip - adjustment I1
- S against short circuit with inverse or definite short delay trip - adjustment I2
- I against short circuit with instantaneous trip - adjustment I3
- G against ground fault with inverse short delay trip - adjustment I4
K51/µP
= Electrical alarm bell for operating anomalies of the microprocessor (only provided with Uaux. and PR112/P-A, PR112/PD-A, PR113/P-A
or PR113/PD-A trip unit)
K51/1...8
= PR020/K signaling unit contacts
K51/GZin
= Zone selectivity: input for protection G or input in “backward” direction for protection
(DBin)
(only provided with Uaux. and PR113/P-A or PR113/PD-A trip unit)
K51/GZout = Zone selectivity: output for protection G or output in “backward” direction for protection D
(DBout)
(only provided with Uaux. and PR113/P-A or PR113/PD-A trip unit)
K51/P1
= Programmable electrical signaling (only provided with Uaux. and PR112/P-A,PR112/PD-A, PR113/P-A or PR113/PD-A trip unit)
K51/P2
= Programmable electrical signaling (only provided with Uaux. and PR113/P-A trip unit)
K51/SZin
= Zone selectivity: input for protection S or input in “forward” direction for protection D
(DFin)
(only provided with Uaux. and PR113/P-A or PR113/PD-A trip unit)
K51/SZout = Zone selectivity: output for protection S or output in “forward” direction for protection D
(DFout)
(only provided with Uaux. and PR113/P-A or PR113/PD-A trip unit)
K51/YC
= Closing control from PR112/PD-A or PR113/PD-A electronic trip unit
K51/Y0
= Opening control from PR112/PD-A or PR113/PD-A electronic trip unit
K51/Y01
= Electrical bell alar m for shunt trip Y01 TRIPPED (only provided with PR112/P-A, PR112/PD-A, PR113/P-A or PR113/PD-A trip unit)
K51/Zin
= Zone selectivity: input (only provided with Uaux. and PR112/P-A or PR112/PD-A trip unit)
K51/Zout
= Zone selectivity: output (only provided with Uaux. and PR112/P-A or PR112/PD-A trip unit)
M
= Motor for closing spring charging
Q
= Power circuit breaker
Q/1...25
= Power circuit breaker auxiliary contacts
S33M/1
= Limit contact of spring charging motor
S33M/2
= Contact for electrical signaling of springs charged
S43
= Changeover switch for setting remote/local control
18. Electrical circuit diagrams
State of operation shown
The diagram is shown in the following conditions:
– draw out version power circuit breaker, open and racked-in
– circuits de-energized
– trip units not tripped
– motor operator with springs discharged.
Versions
The diagram shows a draw out version power circuit breaker, but is also valid for fixed version power circuit breakers.
Fixed version
The control circuits are included between the XV terminals (the X connector is not supplied).
The applications indicated in figures 31, 32 and 51 cannot be supplied with this version.
Draw out version
The control circuits are included between the poles of the X connector (the XV terminal box is not supplied).
The application indicated in figure 52 cannot be supplied with this version.
Version without trip unit
The applications indicated in figures 3, 5, 13, 41, 42, 43, 44, 51, 52, 53 and 62 cannot be supplied with this version.
Version with PR111-A
The PR111-A trip unit is only fitted with the protection unit.
The applications indicated in the figures 3, 5, 41, 42, 43, 44, 53 and 62 cannot be supplied with this version.
Version with electronic PR112/P-A trip unit
The PR112/P-A trip unit is only fitted with the protection unit.
The applications indicated in the figures 3, 5, 22, 42, 43, 44 and 53 cannot be supplied with this version.
Version with electronic PR112/PD-A trip unit
The PR112/PD-A trip unit is fitted with the protection and dialogue unit.
The applications indicated in the figures 22, 41, 43, 44 and 53 cannot be supplied with this version.
Version with electronic PR113/P-A trip unit
The PR113/P-A trip unit is only fitted with the protection unit.
The applications indicated in the figures 3, 5, 22, 41, 42 and 44 cannot be supplied with this version.
Version with electronic PR113/PD-A trip unit
The PR113/PD-A trip unit is fitted with the protection and dialogue unit.
The applications indicated in the figures 22, 41, 42 and 43 cannot be supplied with this version.