T0-1-78/E
009369 T0-1-78/E
009369

Changeoverswitches, T0, 20 A, flush mounting, 1 contact unit(s), Contacts: 2, 90 °, maintained, With 0 (Off) position, 2-0-1, Design number 78
Changeover switch, Product range: Control switches, Part group reference: T0, with black thumb grip and front plate, Contacts: 2, Degree of Protection: Front IP65, Design: flush mounting, Switching angle: 90 °, Switching performance: maintained, With 0 (Off) position, front plate: 2-0-1, Motor rating AC-23A, 50 - 60 Hz 400 V: P = 5.5 kW, Rated uninterrupted current: Iu = 20 A, 1 contact unit(s), Standards: IEC/EN 60947, VDE 0660, IEC/EN 60204, CSA, UL, Switch-disconnector according to IEC/EN 60947-3

Product range	Control switches
Part group reference	T0
Basic function	Changeoverswitches
Contacts	with black thumb grip and front plate
Degree of Protection	2
Design	Front IP65
Contact sequence	flush mounting
Switching angle
Switching performance
Design number	90 °
Front plate no.	maintained With 0 (Off) position
front plate	78
400 V [P]
Rated uninterrupted current [Iu]	2-0-1
Note on rated uninterrupted current !u	5.5 kW
Number of contact units	20 A
Standards	Rated uninterrupted current Iu is specified for max. cross-section.
Climatic proofing	1 contact unit(s)
Ambient temperature >Open	IEC/EN 60947, VDE 0660, IEC/EN 60204, CSA, UL Switch-disconnector according to IEC/EN 60947-3
Ambient temperature >Enclosed	Damp heat, constant, to IEC 60068-2-78 Damp heat, cyclic, to IEC 60068-2-30
Overvoltage category/pollution degree	-25 - +50 °C
Rated impulse withstand voltage [Uimp]	-25 - +40 °C
Mechanical shock resistance	III/3
Mounting position	6000 V AC
Electrical characteristics >Rated operational voltage [Ue]	15 g
Electrical characteristics >Rated uninterrupted current [Iu]	As required
Electrical characteristics >Note on rated uninterrupted current !u	690 V AC
Load rating with intermittent operation, class 12 >AB 25 % DF	20 A
Load rating with intermittent operation, class 12 >AB 40 % DF	Rated uninterrupted current Iu is specified for max. cross-section.
Load rating with intermittent operation, class 12 >AB 60 % DF	2 x Ie
Short-circuit rating >Fuse	1.6 x Ie
Rated short-time withstand current (1 s current) [Icw ]	1.3 x Ie
Note on rated short-time withstand current lcw	20 A gG/gL
Rated conditional short-circuit current [Iq]	320 Arms
cos ϕ rated making capacity as per IEC 60947-3	Current for a time of 1 second
Rated breaking capacity cos ϕ to IEC 60947-3 >230 V	6 kA
Rated breaking capacity cos ϕ to IEC 60947-3 >400/415 V	130 A
Rated breaking capacity cos ϕ to IEC 60947-3 >500 V	100 A
Rated breaking capacity cos ϕ to IEC 60947-3 >690 V	110 A
Safe isolation to EN 61140 >between the contacts	80 A
Safe isolation to EN 61140 >Current heat loss per contact at Ie	60 A
Safe isolation to EN 61140 >Current heat loss per auxiliary circuit at Ie (AC-15/230 V)	440 V AC
Lifespan, mechanical [Operations]	0.6 W
Maximum operating frequency [Operations/h]	0.6 CO
AC >AC-3 >Rating, motor load switch [P] >220 V 230 V [P]	> 0.4 x 106
AC >AC-3 >Rating, motor load switch [P] >230 V Star-delta [P]	1200
AC >AC-3 >Rating, motor load switch [P] >400 V 415 V [P]	3 kW
AC >AC-3 >Rating, motor load switch [P] >400 V Star-delta [P]	5.5 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]	7.5 kW
AC >AC-3 >Rating, motor load switch [P] >690 V [P]	5.5 kW
AC >AC-3 >Rating, motor load switch [P] >690 V Star-delta [P]	7.5 kW
AC >AC-3 >Rated operational current motor load switch >230 V [Ie]	4 kW
AC >AC-3 >Rated operational current motor load switch >230 V star-delta [Ie]	5.5 kW
AC >AC-3 >Rated operational current motor load switch >400V 415 V [Ie]	11.5 A
AC >AC-3 >Rated operational current motor load switch >400 V star-delta [Ie]	20 A
AC >AC-3 >Rated operational current motor load switch >500 V [Ie ]	11.5 A
AC >AC-3 >Rated operational current motor load switch >500 V star-delta [Ie ]	20 A
AC >AC-3 >Rated operational current motor load switch >690 V [Ie]	9 A
AC >AC-3 >Rated operational current motor load switch >690 V star-delta [Ie]	15.6 A
AC >AC-21A >Rated operational current switch >440 V [Ie]	4.9 A
AC >AC-23A >Motor rating AC-23A, 50 - 60 Hz [P] >230 V [P]	8.5 A
AC >AC-23A >Motor rating AC-23A, 50 - 60 Hz [P] >400 V 415 V [P]	20 A
AC >AC-23A >Motor rating AC-23A, 50 - 60 Hz [P] >500 V [P]	3 kW
AC >AC-23A >Motor rating AC-23A, 50 - 60 Hz [P] >690 V [P]	5.5 kW
AC >AC-23A >Rated operational current motor load switch >230 V [Ie]	7.5 kW
AC >AC-23A >Rated operational current motor load switch >400 V 415 V [Ie]	5.5 kW
AC >AC-23A >Rated operational current motor load switch >500 V [Ie]	13.3 A
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	7.6 A
DC >DC-21A [Ie ] >Rated operational current [Ie]	10 A
DC >DC-21A [Ie ] >Contacts	60 V
DC >DC-23A, motor load switch L/R = 15 ms >24 V >Rated operational current [Ie]	1 A
DC >DC-23A, motor load switch L/R = 15 ms >24 V >Contacts	1 Quantity
DC >DC-23A, motor load switch L/R = 15 ms >48 V >Rated operational current [Ie]	10 A
DC >DC-23A, motor load switch L/R = 15 ms >48 V >Contacts	1 Quantity
DC >DC-23A, motor load switch L/R = 15 ms >60 V >Rated operational current [Ie]	10 A
DC >DC-23A, motor load switch L/R = 15 ms >60 V >Contacts	2 Quantity
DC >DC-23A, motor load switch L/R = 15 ms >120 V >Rated operational current [Ie]	10 A
DC >DC-23A, motor load switch L/R = 15 ms >120 V >Contacts	3 Quantity
DC >DC-23A, motor load switch L/R = 15 ms >240 V >Rated operational current [Ie]	5 A
DC >DC-23A, motor load switch L/R = 15 ms >240 V >Contacts	3 Quantity
DC >DC-13, Control switches L/R = 50 ms >Rated operational current [Ie]	5 A
DC >DC-13, Control switches L/R = 50 ms >Voltage per contact pair in series	5 Quantity
Control circuit reliability at 24 V DC, 10 mA [Fault probability]	10 A
Solid or stranded	32 V
Flexible with ferrules to DIN 46228	< 10 -5, < 1 fault in 100000 operations HF
Terminal screw	1 x (1 - 2,5) 2 x (1 - 2,5) mm2
Tightening torque for terminal screw	1 x (0.75 - 2.5) 2 x (0.75 - 2.5) mm2
Notes	M3.5
Contacts >Rated operational voltage [Ue]	1 Nm
Contacts >Rated uninterrupted current max. >Main conducting paths >General use	B10d values as per EN ISO 13849-1, table C1
Contacts >Rated uninterrupted current max. >Auxiliary contacts >General Use [IU]	600 V AC
Contacts >Rated uninterrupted current max. >Auxiliary contacts >Pilot Duty	16 A
Switching capacity >Maximum motor rating >Single-phase >120 V AC	10 A
Switching capacity >Maximum motor rating >Single-phase >200 V AC	A 600 P 600
Switching capacity >Maximum motor rating >Single-phase >240 V AC	0.5 HP
Switching capacity >Maximum motor rating >Three-phase >200 V AC	1 HP
Switching capacity >Maximum motor rating >Three-phase >240 V AC	1.5 HP
Switching capacity >Maximum motor rating >Three-phase >480 V AC	3 HP
Switching capacity >Maximum motor rating >Three-phase >600 V AC	3 HP
Short Circuit Current Rating >Basic Rating	7.5 HP
Short Circuit Current Rating >max. Fuse	7.5 HP
Short Circuit Current Rating >High fault rating	5 kA
Short Circuit Current Rating >max. Fuse	50 A
Terminal capacity >Solid or flexible conductor with ferrule	10 kA
Terminal capacity >Terminal screw	20, Class J A
Terminal capacity >Tightening torque	18 - 14 AWG
Rated operational current for specified heat dissipation [In]	M3.5
Heat dissipation per pole, current-dependent [Pvid]	8.8 lb-in
Equipment heat dissipation, current-dependent [Pvid]	20 A
Static heat dissipation, non-current-dependent [Pvs]	0.6 W
Heat dissipation capacity [Pdiss]	0 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	-25 °C
10.2 Strength of materials and parts >10.2.3.1 Verification of thermal stability of enclosures	+50 °C
10.2 Strength of materials and parts >10.2.3.2 Verification of resistance of insulating materials to normal heat	Meets the product standard´s requirements.
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	UV resistance only in connection with protective shield.
10.2 Strength of materials and parts >10.2.7 Inscriptions	Does not apply, since the entire switchgear needs to be evaluated.
10.3 Degree of protection of ASSEMBLIES	Does not apply, since the entire switchgear needs to be evaluated.
10.4 Clearances and creepage distances	Meets the product standard´s requirements.
10.5 Protection against electric shock	Does not apply, since the entire switchgear needs to be evaluated.
10.6 Incorporation of switching devices and components	Meets the product standard´s requirements.
10.7 Internal electrical circuits and connections	Does not apply, since the entire switchgear needs to be evaluated.
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	Is the panel builder´s responsibility.
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	The panel builder is responsible for the temperature rise calculation. Eaton will provide heat dissipation data for the devices.
10.13 Mechanical function	Is the panel builder´s responsibility. The specifications for the switchgear must be observed.
Model	Is the panel builder´s responsibility. The specifications for the switchgear must be observed.
Number of poles	The device meets the requirements, provided the information in the instruction leaflet (IL) is observed.
With 0 (off) position	Reverser
With retraction in 0-position	1
Rated permanent current Iu	Yes
Rated operation current Ie at AC-3, 400 V	No
Rated operation power at AC-3, 400 V	20 A
Degree of protection (IP), front side	11.5 A
Degree of protection (NEMA), front side	4 kW
Number of auxiliary contacts as normally closed contact	IP65
Number of auxiliary contacts as normally open contact	12
Number of auxiliary contacts as change-over contact	0
Suitable for ground mounting	0
Suitable for front mounting 4-hole	0
Suitable for distribution board installation	No
Suitable for intermediate mounting	Yes
Complete device in housing	No
Material housing	No
Type of control element	No
Type of electrical connection of main circuit	Plastic
Product Standards	Toggle
UL File No.	Screw connection
UL Category Control No.	UL 60947-4-1;CSA - C22.2 No. 60947-4-1-14; CSA-C22.2 No. 94; IEC/EN 60947-3; CE marking
CSA File No.	E36332
CSA Class No.	NLRV
North America Certification	12528
Suitable for	3211-05
Degree of Protection	UL listed, CSA certified

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