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3RV1 Circuit Breaker/MSP
SIRIUS System Manual
2-18 GWA 4NEB 430 0999-02 DS 01
2.4.2 Auxiliary contacts 3RV19 01-.., alarm switch 3RV19 21-111 and auxiliary release 3RV19 .2-....
The maximum configuration for each 3RV1 circuit breaker/MSP is one trans-
verse auxiliary contact, one side mounted auxiliary contact with 2 contacts,
one alarm switch, and one auxiliary release. An alternative to the transverse
auxiliary contacts and one side mounted auxiliary contact with 2 contacts
would be to use a side mounted auxiliary contact with 2 NO + 2 NC. So
with any one circuit breaker/MSP a maximum of 4 auxiliary contacts with
auxiliary release can be used.
Possible combinations The following combinations of auxiliary switches and alarm switches or of
auxiliary switches are possible:
• Auxiliary contacts with 2 contacts and alarm switches can be installed
individually or together. The side-mounted auxiliary contact is installed on
the left of the alarm switch.
• Transverse and lateral auxiliary switches can be combined. Maximum of
4 auxiliary contacts is possible.
• One auxiliary release can be attached on the right for each circuit breaker/
MSP
Accesso-
ries
Function/use Width Attach
to
Discon-
necting
module
Frame sizes
S0 and S2
The supply is fed to the circuit breaker/MSP via the disconnecting module.
A connector which can only be removed when the circuit breaker/MSP is
switched off isolates the circuit breaker/MSP from the power system on 3
poles.
The shock-protected isolation position is easily visible and is secured by a
padlock to ensure that the connector cannot be used during maintenance
work, for example.
Width of
the circuit
breaker/
MSP
remains the
same
Upper
side/ line
side
Motorized
remote-
control
mechanism
For frame
sizes
S2 and S3
The circuit breaker/MSPs can be opened and closed via the remote-con-
trolled mechanism by means of electrical commands. This enables a load
or system to be disconnected from and then reconnected to the power
system from an operator control panel.
The circuit breaker/MSP can be locally disconnected from and recon-
nected to the remote-control mechanism.
148 mm
—
Rotary
switch
extension
for the door
The rotary switch extension for the door consists of a knob, a drive cou-
pling and an extension shaft. They comply with IP65. The door interlock
prevents the enclosure door being opened inadvertently when the switch
is in the on position. The off position can be secured with a maximum of 3
padlocks.
Depends on
the applica-
tion
Front
mount
Table 2-5: (cont.) Attachable accessories