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Circuit breaker size S0 for motor protection CLASS 10 A-release14...20 A Short-circuit release 260 A
Screw terminal Standardswitching capacity !!! Phased-out product !!! Successor is SIRIUS3RV2 Preferred successor
type is >>3RV2021-4BA10
product brand name SIRIUS
product designation Circuit breaker
design of the product For motor protection
General technical data
product extension auxiliary switch Yes
power loss W for rated value of the current
at AC in hot operating state 10.5 W
at AC in hot operating state per pole 3.5 W
surge voltage resistance rated value 6 kV
maximum permissible voltage for safe isolation
protection class IP
on the front IP20
mechanical service life (switching cycles)
shock resistance 25g / 11 ms
mechanical service life (switching cycles)
of the main contacts typica 100 000
continuous current rated value 20 A
Ambient conditions
installation altitude at height above sea level maximum 2 000 m
ambient temperature
during operation -20 - +60 degrees centigrade
during storage -50 -- +80 degrees centigrade
during transport -50 - +80 degrees centigrade
Main circuit
number of poles for main current circuit 3
adjustable pick-up value current of the current-dependent overload release 14 -20A
operating voltage
rated value 690 V at AC-3 rated value maximum 690 V
operating current
at AC-3 at 400 V rated value 20 A
operating power at AC-3
at 400 V rated value 7500 W
operating frequency at AC-3 maximum 15 1/h
number of CO contacts for auxiliary contacts 0
Protective and monitoring functions
product function
ground fault detection No
phase failure detection Yes
trip class CLASS 10
design of the overload release thermal
maximum short-circuit current breaking capacity (Icu)
at AC at 240 V rated value 100 kA
at AC at 400 V rated value 50 kA
at AC at 500 V rated value 10 kA
at AC at 690 V rated value 4 kA
Installation mounting dimensions
mounting position any
mounting type screw and snap-on mounting onto 35 mm standard mounting railaccording to DIN EN 50022
height 97 mm width 45 mm depth 96 mm