Datasheet

3RV Motor Starter Protectors/Circuit Breakers up to 100 A
5
Siemens · 2010
General data
Size S0 motor starter protector
3RV1 motor starter protectors are compact, current limiting
motor starter protectors which are optimized for load feeders.
The motor starter protectors are used for switching and protec-
ting induction motors of up to 45 kW at 400 V AC and for other
loads with rated currents of up to 100 A.
Type of construction
The motor starter protectors are available in four sizes:
• Size S00 - width 45 mm,
max. rated current 12 A,
at 400 V AC suitable for induction motors up to 5.5 kW.
• Size S0 – width 45 mm,
max. rated current 25 A,
at 400 V AC suitable for induction motors up to 11 kW.
• Size S2 – width 55 mm,
max. rated current 50 A,
at 400 V AC suitable for induction motors up to 22 kW.
• Size S3 – width 70 mm,
max. rated current 100 A,
at 400 V AC suitable for induction motors up to 45 kW.
Note
"Increased safety" type of protection EEx e according to
ATEX directive 94/9/EC
The 3RV10 motor starter protectors are suitable for the overload
protection of explosion-proof motors with "increased safety" type
of protection EEx e;
see Catalog LV 1 , Chapter 20 "Appendix" --> "Standards and
Approvals" --> "Type Overview of Approved Devices for Explo-
sion-Protected Areas (ATEX Explosion Protection)".
■ Design
Screw terminals
3RV1 motor starter protectors of sizes S00 and S0 are fitted with
terminals with captive screws and clamping pieces, allowing the
connection of 2 conductors with different cross-sections.
The box terminals of the S2 and S3 motor starter protectors also
enable 2 conductors with different cross-sections to be con-
nected. With the exception of S3 motor starter protectors which
are equipped with 4 mm Allen screws, all terminal screws are tig-
htened with a Pozidriv screwdriver size 2.
The box terminals of the S3 motor starter protectors can be re-
moved in order to connect conductors with cable lugs or con-
necting bars. A terminal cover is available as touch protection
and to ensure that the required clearances and creepage distan-
ces are maintained if the box terminals are removed.
Cage Clamp terminals
As an alternative to screw terminals, S00 motor starter protectors
are also available with Cage Clamp terminals.
Motor starter protector size S00 with Cage Clamp terminals
This screwless connection method, already familiar from termi-
nal blocks, clamps the conductors using a spring-type terminal
and is shock-proof and vibration-proof.
Motor starter protectors with Cage Clamp terminals allow inde-
pendent connection of two conductors per terminal.
Mounting
The motor starter protectors are snap-fitted on a 35 mm standard
mounting rail to EN 60715.
Push-in lugs for screwing the motor starter protector onto mounting
plates.
A standard mounting rail with a height of 15 mm is required for
size S3 motor starter protectors. A 75 mm standard mounting rail
can be used as an alternative for size S3.
S2 and S3 motor starter protectors can also be screwed directly
onto a base plate.
The 3RB19 00-0B push-in lugs are available for screw mounting
of S00 and S0 motor starter protectors.
Screw terminals
Cage Clamp terminals
These connections are indicated in the Technical
specifications by orange backgrounds.
3RB19 00-0B
NSB0_01072a