SIEMENS
SIEMENS 3RV20214FA10 Manual Motor Starter 3P 40A 690V AC
Three-pole manual motor starter rated 40 A at 690 V AC with overload adjustment from 34 A to 40 A
- Protects motors up to 40 A with adjustable 34–40 A overload range
- Handles three-phase loads to 690 V AC for industrial voltage levels
- Delivers 30 hp at 480 V AC three-phase for heavy-duty applications
- Provides 10 hp at 208 V and 240 V AC three-phase across common supplies
- Selector-switch operator gives direct manual control for simple operation
SIEMENS Sirius 3RV20 Motor Starter
The SIEMENS Sirius 3RV20 is a three-pole manual motor starter rated for 40 A at up to 690 V AC. It suits industrial maintenance teams and panel builders who need direct on-off control with built-in overload protection for three-phase motors.
Thermal overload and switching performance
Adjustable overload relay covers 34 A to 40 A, protecting motors from sustained overcurrent without external relays. The selector-switch operator gives clear manual disconnect, and the 3P design handles three-phase loads cleanly at the rated voltages.
Replaces separate breaker and overload combo
This single unit replaces a discrete circuit breaker plus thermal overload assembly, saving panel space and wiring time. The jump is worth it when a compact 40 A starter with integrated protection matches the motor nameplate and the 690 V system voltage.
Highlights
- Protects motors up to 40 A with adjustable 34–40 A overload range
- Handles three-phase loads to 690 V AC for industrial voltage levels
- Delivers 30 hp at 480 V AC three-phase for heavy-duty applications
- Provides 10 hp at 208 V and 240 V AC three-phase across common supplies
- Selector-switch operator gives direct manual control for simple operation
Specifications
| Brand | SIEMENS |
|---|
Questions about this item
How do I install the SIEMENS 3RV20214FA10 starter and what step is often missed?
Wire the three phases to the 40 A terminals, set the overload dial between 34 A and 40 A to match the motor full-load current, and verify the selector switch operates before closing the enclosure
What maintenance or replacement will this starter need later?
The 3P contacts and overload mechanism are sealed; no routine maintenance is required, but replace the unit if the selector switch fails to latch or the trip function does not operate at the set current
Which limit appears first during sustained operation at full load?
The 40 A continuous current rating is the first limit; the overload will trip when motor current exceeds the dial setting up to 40 A, protecting the starter from overheating
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