3RV Motor Starter Protectors/Circuit Breakers up to 100 A General data 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.
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. 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.
Note Screw terminals Cage Clamp terminals These connections are indicated in the Technical specifications by orange backgrounds. "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)". 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. 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. 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.
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 8 Siemens · 2009