ABB A45, A50, A75, AE45, AE50 Technical Data

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IEC/UL/CSA Technical data

A/E/F45...A/E/F75, 4-pole Utilization characteristics

Main pole - Utilization characteristics according to IEC

Contactor types	AC operated	A45		A50		A75
	DC operated	AE45		AE50		AE75
		TAE45		TAE50		TAE75
	AC / DC operated	AF45		AF50		AF75
Standards		IEC 60947-1 / 60947-4-1 and EN 60947-1 / 60947-4-1
Rated operational voltage Ue max.		1000 V (690 V for AF.. contactors)
Rated frequency (without derating)		50 / 60 Hz
Conventional free-air thermal current Ith
acc. to IEC 60947-4-1, open contactors, θ ≤ 40 °C		100 A		100 A		125 A
With conductor cross-sectional area		35 mm²		35 mm²		50 mm²
AC-1 Utilization category
For air temperature close to contactor
Ie / Rated operational current AC-1	θ ≤ 40 °C	70 A		100 A		125 A
Ue max. ≤ 690 V, 50/60 Hz	θ ≤ 55 °C	60 A		85 A		105 A
	θ ≤ 70 °C (1)	50 A		70 A		85 A
With conductor cross-sectional area		25 mm²		35 mm²		50 mm²
Short-circuit protection device for contactors
without thermal overload relay - Motor protection excluded
Ue ≤ 500 V AC - gG type fuse		80 A		100 A		160 A
Rated short-time withstand current Icw	1 s	1000 A
At 40 °C ambient temperature,	10 s	650 A
in free air from a cold state	30 s	370 A
	1 min	250 A
	15 min	110 A		110 A		135 A
Power dissipation per pole	Ie / AC-1	2.5 W		5 W		7 W
Max. electrical switching frequency	AC-1	600 cycles/h (300 for AF.., AE.., TAE..)
(1) Unauthorized for TAE.. contactors

Main pole - Utilization characteristics according to UL / CSA

Contactor types

AC operated

A45

A50

A75

DC operated

AE45

AE50

AE75

TAE45

TAE50

TAE75

AC / DC operated

AF45

AF50

AF75

Standards

UL 508, CSA C22.2 N°14

Max. operational voltage

600 V

UL / CSA general use rating

600 V AC

65 A

80 A

105 A

With conductor cross-sectional area

AWG 6

AWG 4

AWG 2

Max. electrical switching frequency

For general use

600 cycles/h (300 for AF.., AE.. TAE..)

Remark for 4-pole contactors fitted with 2 N.O. + 2 N.C. main poles

1

R3

R5

7

These contactors are suitable for controlling 2 separate circuits, i.e. 2 loads with 2 separate supplies, or 1 circuit comprising

2 separate loads with a single supply (see diagrams below). When the contactor operates there is no mechanical overlapping

between the N.O. poles and the N.C. poles: BREAK before MAKE.

2

R4

R6

8

!

These contactors are not suitable for a reversing starter or for controlling a single load from 2 separate supplies.

Block diagrams

– Single supply and 2 separate loads

– 2 separate supplies and 2 separate loads

Supply

Main

supply

Back-up

supply

A1

1

R3

R5

7

A1

1

R3

R5

7

R4

R6

8

A2

2

A2

2

R4

R6

8

Load

Load

Load

Load

1.124

Low Voltage Products & Systems

1SXU000023C0202 Rev. A

ABB Inc. • 888-385-1221 • www.abb.us/lowvoltage

General technical data

AF45...AF75

Coil & mounting characteristics

Across
Contactorsline
	the

1

Magnet system characteristics

Contactor types		AC / DC operated	AF45	AF50	AF75
Coil operating limits		AC or DC supply	At θ ≤ 70 °C 0.85 x Uc min...1.1 x Uc max.
acc. to IEC 60947-4-1			Please also refer to "Mounting characteristics and conditions for use"
AC control voltage	Rated control circuit voltage Uc		48…250 V
50/60 Hz	Coil consumption	Average pull-in value	210 VA
		Average holding value	7 VA / 2.8 W
DC control voltage	Rated control circuit voltage Uc		20…250 V DC
	Coil consumption	Average pull-in value	190 W
		Average holding value	2.8 W
Drop-out voltage			55 % of Uc min.
Voltage sag immunity			Conditions of use on request
acc. to SEMI F47
Dips withstand			≥ 20 ms
Operating time
Between coil energization and:		N.O. contact closing	30…100 ms
		N.C. contact opening	27…95 ms
Between coil de-energization and:		N.O. contact opening	30…110 ms
		N.C. contact closing	35…115 ms

Mounting characteristics and conditions for use

Contactor types	AC / DC operated AF45	AF50		AF75
Mounting positions	Pos. 2	+30° -30°
	Pos. 4
	Pos. 3
	Pos. 1	Pos. 1 ± 30°	Pos. 5	Pos. 6

				Pos. 5 unauthorized for AF45-22-00, AF75-22-00 contactors
				Max. and add-on N.O. or N.C. auxiliary contacts: see accessory fitting details for 4-pole con-
				tactor AF45 ... AF110
Control voltage / Ambient temperature
	Mounting	1, 1±30°, 2, 3, 4, 5	at θ ≤ 70 °C 0.85 x Uc min…1.1 x Uc max.
	positions	6		Unauthorized
Mounting distances				The contactors can be assembled side by side
Fixing	On rail according to IEC 60715, EN 60715			35 x 15 mm or 75 x 25 mm
	By screws (not supplied)			2 x M6 screws placed diagonally

Low Voltage Products & Systems

1.129

ABB Inc. • 888-385-1221 • www.abb.us/lowvoltage

1SXU000023C0202 Rev. A