T0-4-146/I1
222675 T0-4-146/I1
222675

Step switches, T0, 20 A, surface mounting, 4 contact unit(s), Contacts: 7, 45 °, maintained, With 0 (Off) position, 0-7, Design number 146
Step switch, Product range: Control switches, Standards: IEC/EN 60947, VDE 0660, IEC/EN 60204, Switch-disconnector according to IEC/EN 60947-3, Part group reference: T0, with black thumb grip and front plate, Contacts: 7, Degree of Protection: IP65, Design: surface mounting, Switching angle: 45 °, Switching performance: maintained, With 0 (Off) position, 4 contact unit(s), Rated uninterrupted current: Iu= 20 A, front plate: 0-7

Product range	Control switches
Part group reference	T0
Basic function	Step switches
Contacts	with black thumb grip and front plate
Degree of Protection	7
Design	IP65
Contact sequence
Switching angle	surface mounting
Switching performance
Design number
Front plate no.	45 °
front plate	maintained With 0 (Off) position
400 V [P]	146
Rated uninterrupted current [Iu]
Note on rated uninterrupted current !u	0-7
Number of contact units	5.5 kW
Standards	20 A
Climatic proofing	Rated uninterrupted current Iu is specified for max. cross-section.
Ambient temperature >Enclosed	4 contact unit(s)
Overvoltage category/pollution degree	IEC/EN 60947, VDE 0660, IEC/EN 60204 Switch-disconnector according to IEC/EN 60947-3
Rated impulse withstand voltage [Uimp]	Damp heat, constant, to IEC 60068-2-78 Damp heat, cyclic, to IEC 60068-2-30
Mechanical shock resistance	-25 - +40 °C
Mounting position	III/3
Electrical characteristics >Rated operational voltage [Ue]	6000 V AC
Electrical characteristics >Rated uninterrupted current [Iu]	15 g
Electrical characteristics >Note on rated uninterrupted current !u	As required
Load rating with intermittent operation, class 12 >AB 25 % DF	690 V AC
Load rating with intermittent operation, class 12 >AB 40 % DF	20 A
Load rating with intermittent operation, class 12 >AB 60 % DF	Rated uninterrupted current Iu is specified for max. cross-section.
Short-circuit rating >Fuse	2 x Ie
Rated short-time withstand current (1 s current) [Icw ]	1.6 x Ie
Note on rated short-time withstand current lcw	1.3 x Ie
Rated conditional short-circuit current [Iq]	20 A gG/gL
cos ϕ rated making capacity as per IEC 60947-3	320 Arms
Rated breaking capacity cos ϕ to IEC 60947-3 >230 V	Current for a time of 1 second
Rated breaking capacity cos ϕ to IEC 60947-3 >400/415 V	6 kA
Rated breaking capacity cos ϕ to IEC 60947-3 >500 V	130 A
Rated breaking capacity cos ϕ to IEC 60947-3 >690 V	100 A
Safe isolation to EN 61140 >between the contacts	110 A
Safe isolation to EN 61140 >Current heat loss per contact at Ie	80 A
Safe isolation to EN 61140 >Current heat loss per auxiliary circuit at Ie (AC-15/230 V)	60 A
Lifespan, mechanical [Operations]	440 V AC
Maximum operating frequency [Operations/h]	0.6 W
AC >AC-3 >Rating, motor load switch [P] >220 V 230 V [P]	0.6 CO
AC >AC-3 >Rating, motor load switch [P] >230 V Star-delta [P]	> 0.4 x 106
AC >AC-3 >Rating, motor load switch [P] >400 V 415 V [P]	1200
AC >AC-3 >Rating, motor load switch [P] >400 V Star-delta [P]	3 kW
AC >AC-3 >Rating, motor load switch [P] >500 V [P]	5.5 kW
AC >AC-3 >Rating, motor load switch [P] >500 V Star-delta [P]	5.5 kW
AC >AC-3 >Rating, motor load switch [P] >690 V [P]	7.5 kW
AC >AC-3 >Rating, motor load switch [P] >690 V Star-delta [P]	5.5 kW
AC >AC-3 >Rated operational current motor load switch >230 V [Ie]	7.5 kW
AC >AC-3 >Rated operational current motor load switch >230 V star-delta [Ie]	4 kW
AC >AC-3 >Rated operational current motor load switch >400V 415 V [Ie]	5.5 kW
AC >AC-3 >Rated operational current motor load switch >400 V star-delta [Ie]	11.5 A
AC >AC-3 >Rated operational current motor load switch >500 V [Ie ]	20 A
AC >AC-3 >Rated operational current motor load switch >500 V star-delta [Ie ]	11.5 A
AC >AC-3 >Rated operational current motor load switch >690 V [Ie]	20 A
AC >AC-3 >Rated operational current motor load switch >690 V star-delta [Ie]	9 A
AC >AC-21A >Rated operational current switch >440 V [Ie]	15.6 A
AC >AC-23A >Motor rating AC-23A, 50 - 60 Hz [P] >230 V [P]	4.9 A
AC >AC-23A >Motor rating AC-23A, 50 - 60 Hz [P] >400 V 415 V [P]	8.5 A
AC >AC-23A >Motor rating AC-23A, 50 - 60 Hz [P] >500 V [P]	20 A
AC >AC-23A >Motor rating AC-23A, 50 - 60 Hz [P] >690 V [P]	3 kW
AC >AC-23A >Rated operational current motor load switch >230 V [Ie]	5.5 kW
AC >AC-23A >Rated operational current motor load switch >400 V 415 V [Ie]	7.5 kW
AC >AC-23A >Rated operational current motor load switch >500 V [Ie]	5.5 kW
AC >AC-23A >Rated operational current motor load switch >690 V [Ie]	13.3 A
DC >DC-1, Load-break switches L/R = 1 ms >Rated operational current [Ie]	13.3 A
DC >DC-1, Load-break switches L/R = 1 ms >Voltage per contact pair in series	13.3 A
DC >DC-21A [Ie ] >Rated operational current [Ie]	7.6 A
DC >DC-21A [Ie ] >Contacts	10 A
DC >DC-23A, motor load switch L/R = 15 ms >24 V >Rated operational current [Ie]	60 V
DC >DC-23A, motor load switch L/R = 15 ms >24 V >Contacts	1 A
DC >DC-23A, motor load switch L/R = 15 ms >48 V >Rated operational current [Ie]	1 Quantity
DC >DC-23A, motor load switch L/R = 15 ms >48 V >Contacts	10 A
DC >DC-23A, motor load switch L/R = 15 ms >60 V >Rated operational current [Ie]	1 Quantity
DC >DC-23A, motor load switch L/R = 15 ms >60 V >Contacts	10 A
DC >DC-23A, motor load switch L/R = 15 ms >120 V >Rated operational current [Ie]	2 Quantity
DC >DC-23A, motor load switch L/R = 15 ms >120 V >Contacts	10 A
DC >DC-23A, motor load switch L/R = 15 ms >240 V >Rated operational current [Ie]	3 Quantity
DC >DC-23A, motor load switch L/R = 15 ms >240 V >Contacts	5 A
DC >DC-13, Control switches L/R = 50 ms >Rated operational current [Ie]	3 Quantity
DC >DC-13, Control switches L/R = 50 ms >Voltage per contact pair in series	5 A
Control circuit reliability at 24 V DC, 10 mA [Fault probability]	5 Quantity
Solid or stranded	10 A
Flexible with ferrules to DIN 46228	32 V
Terminal screw	< 10 -5, < 1 fault in 100000 operations HF
Tightening torque for terminal screw	1 x (1 - 2,5) 2 x (1 - 2,5) mm2
Notes	1 x (0.75 - 2.5) 2 x (0.75 - 2.5) mm2
Terminal capacity >Terminal screw	M3.5
Rated operational current for specified heat dissipation [In]	1 Nm
Heat dissipation per pole, current-dependent [Pvid]	B10d values as per EN ISO 13849-1, table C1
Equipment heat dissipation, current-dependent [Pvid]	M3.5
Static heat dissipation, non-current-dependent [Pvs]	20 A
Heat dissipation capacity [Pdiss]	0.6 W
Operating ambient temperature min.	0 W
Operating ambient temperature max.	0 W
10.2 Strength of materials and parts >10.2.2 Corrosion resistance	0 W
10.2 Strength of materials and parts >10.2.3.1 Verification of thermal stability of enclosures	-25 °C
10.2 Strength of materials and parts >10.2.3.2 Verification of resistance of insulating materials to normal heat	+40 °C
10.2 Strength of materials and parts >10.2.3.3 Verification of resistance of insulating materials to abnormal heat and fire due to internal electric effects	Meets the product standard´s requirements.
10.2 Strength of materials and parts >10.2.4 Resistance to ultra-violet (UV) radiation	Meets the product standard´s requirements.
10.2 Strength of materials and parts >10.2.5 Lifting	Meets the product standard´s requirements.
10.2 Strength of materials and parts >10.2.6 Mechanical impact	Meets the product standard´s requirements.
10.2 Strength of materials and parts >10.2.7 Inscriptions	UV resistance only in connection with protective shield.
10.3 Degree of protection of ASSEMBLIES	Does not apply, since the entire switchgear needs to be evaluated.
10.4 Clearances and creepage distances	Does not apply, since the entire switchgear needs to be evaluated.
10.5 Protection against electric shock	Meets the product standard´s requirements.
10.6 Incorporation of switching devices and components	Does not apply, since the entire switchgear needs to be evaluated.
10.7 Internal electrical circuits and connections	Meets the product standard´s requirements.
10.8 Connections for external conductors	Does not apply, since the entire switchgear needs to be evaluated.
10.9 Insulation properties >10.9.2 Power-frequency electric strength	Does not apply, since the entire switchgear needs to be evaluated.
10.9 Insulation properties >10.9.3 Impulse withstand voltage	Is the panel builder´s responsibility.
10.9 Insulation properties >10.9.4 Testing of enclosures made of insulating material	Is the panel builder´s responsibility.
10.10 Temperature rise	Is the panel builder´s responsibility.
10.11 Short-circuit rating	Is the panel builder´s responsibility.
10.12 Electromagnetic compatibility	Is the panel builder´s responsibility.
10.13 Mechanical function	The panel builder is responsible for the temperature rise calculation. Eaton will provide heat dissipation data for the devices.
Type of switch	Is the panel builder´s responsibility. The specifications for the switchgear must be observed.
Number of poles	Is the panel builder´s responsibility. The specifications for the switchgear must be observed.
Max. rated operation voltage Ue AC	The device meets the requirements, provided the information in the instruction leaflet (IL) is observed.
Rated permanent current Iu	Level switch
Number of switch positions	1
With 0 (off) position	690 V
With retraction in 0-position	20 A
Device construction	8
Width in number of modular spacings	Yes
Suitable for ground mounting	No
Suitable for front mounting 4-hole	Surface mounted device
Suitable for distribution board installation	0
Suitable for intermediate mounting	Yes
Complete device in housing	No
Type of control element	No
Front shield size	No
Degree of protection (IP), front side	Yes
Degree of protection (NEMA), front side	Toggle

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