Switch position indicator and test function
STOP button
Selector switch for manual/automatic reset
Screw connection or Spring-clamp versions
Impulse voltage resistance 6 kV
Insulation voltage 690V
Surface or DIN-rail stand-alone mounts available, see 706-1699 etc
The 3RU21 thermal overload relays up to 80 A have been designed for current-sensitive protection of loads with normal starting.
These thermal overload relays for use with Sirius Size S0 & S00 Contactors
Screw terminals can only be used with screw terminal overloads and spring terminals can only be used with spring terminal overloads.
CE, UL, CSA
Siemens control gear for feeders up to 5.5kW. The complementary nature of the devices allows fast and simple assembly, for example, of motor starters and reversers. A perfect match between contactors, overloads, circuit breakers and accessories for the same power ratings provides a uniform panel appearance and the standard widths with no side-by-side mounting derating allows for space saving.
Attribute | Value |
---|---|
FLC Motor Rating | 27 → 32 A |
Contact Current Rating | 32 A |
Pole Configuration | 3P |
Range | Sirius Innovation |
Contact Voltage Rating | 690 V ac |
Mounting Style | Direct Contactor |
Series | 3RU |
Normal State Configuration | NO/NC |
Number Of Auxiliary Contacts | 2 |
Power Rating | 15 kW |
Terminal Type | Cage Clamp |
Reset Method | Automatic, Manual |
Length | 87mm |
Width | 45mm |
Depth | 73mm |
Minimum Operating Temperature | -40°C |
Operating Temperature Range | -40 → +70 °C |
Maximum Operating Temperature | +70°C |