ABB AF09(Z)B, AF16(Z)B, AF26(Z)B, AF38(Z)B Technical Data

AF09(Z)B..RT ... AF38(Z)B..RT 4-pole contactors

Technical data

Main pole - Utilization characteristics according to IEC

Contactor types

AF09(Z)B..RT

AF16(Z)B..RT

AF26(Z)B..RT

AF38(Z)B..RT

Standards

IEC 60947-1 / 60947-4-1 and EN 60947-1 / 60947-4-1

IEC 60077-1, IEC 60077-2, EN 50155 (applicable parts)

2

Fire and smoke

EN 45545 (HL2, HL3)

Rated operational voltage Ue max.

690 V

Rated frequency (without derating)

50

/ 60 Hz

Conventional free-air thermal current Ith

acc. to IEC 60947-4-1, open contactors, θ ≤ 40 °C

35

A

35 A

55 A

55 A

With conductor cross-sectional area

6 mm²

6 mm²

16 mm²

16 mm²

AC-1 Utilization category

For air temperature close to contactor

Ie / Rated operational current AC-1

θ ≤ 40 °C

25

A

30 A

45 A

55 A

Ue max. ≤ 690 V, 50/60 Hz

θ ≤ 60 °C

25

A

30 A

40 A

45 A

θ ≤ 70 °C

22

A

26 A

32 A

37 A

With conductor cross-sectional area

4 mm²

6 mm²

10 mm²

16 mm²

AC-3 Utilization category

For air temperature close to contactor θ ≤ 60 °C

Ie / Max. rated operational current AC-3 (1)

220-230-240 V

9 A

18 A

23.2 A

23.2 A

380-400 V

9 A

18 A

22 A

22 A

415 V

9 A

18 A

21.2 A

21.2 A

M

3-phase motors

440 V

9 A

18 A

20 A

20 A

3

500 V

9.5 A

15 A

17.6 A

17.6 A

690 V

7 A

10.5 A

10.5 A

10.5 A

Rated operational power AC-3 (1)

						220-230-240 V	2.2 kW	4 kW	5.5 kW	5.5 kW
						380-400 V	4 kW	7.5 kW	11 kW (2)	11 kW (2)
					1500 r.p.m. 50 Hz	415 V	4 kW	9 kW	11 kW	11 kW
		M
					1800 r.p.m. 60 Hz	440 V	4 kW	9 kW	11 kW	11 kW
	3				3-phase motors	500 V	5.5 kW	9 kW	11 kW	11 kW
						690 V	5.5 kW	9 kW	9 kW	9 kW
	Rated making capacity AC-3						10 x Ie AC-3 acc. to IEC 60947-4-1
	Rated breaking capacity AC-3						8 x Ie AC-3 acc. to IEC 60947-4-1
	Short-circuit protection device for contactors
	without thermal overload relay - Motor protection excluded
	Ue ≤ 500 V AC - gG type fuse						25 A	32 A	50 A	63 A
	Rated short-time withstand current Icw					1 s	300 A	300 A	450 A	450 A
	at 40 °C ambient temperature,					10 s	150 A	150 A	300 A	300 A
	in free air from a cold state					30 s	80 A	80 A	225 A	225 A
						1 min	60 A	60 A	150 A	150 A
						15 min	35 A	35 A	55 A	55 A
	Maximum breaking capacity					at 440 V	250 A	250 A	–	–
	cos θ = 0.45					at 690 V	106 A	106 A	–	–
	Power dissipation per pole					Ie / AC-1	0.8 W	1.2 W	1.6 W	2.3 W
						Ie / AC-3	0.1 W	0.35 W	0.42 W	0.42 W
	Max. electrical switching frequency					AC-1	600 cycles/h

(1)For the corresponding kW/A or hp/A values of 1500 r.p.m, 50 Hz or 1800 r.p.m, 60 Hz, 1-phase or 3-phase motors, see "Motor rated operational powers and currents".

(2)400 V 3-phase motor only.

Main pole - Utilization characteristics according to UL / NEMA / CSA

Contactor types	AF09(Z)B..RT	AF16(Z)B..RT	AF26(Z)B..RT	AF38(Z)B..RT
Standards	UL 508, CSA C22.2 N°14
Maximum operational voltage	600 V
UL / CSA general use rating	25 A	30 A	45 A	55 A
600 V AC
With conductor cross-sectional area	AWG 10	AWG 10	AWG 8	AWG 6
Maximum electrical switching frequency	600
For general use

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AF09(Z)B..RT ... AF38(Z)B..RT 4-pole contactors Technical data

General technical data

Contactor types	AF09(Z)B..RT	AF16(Z)B..RT	AF26(Z)B..RT	AF38(Z)B..RT
Rated insulation voltage Ui	690 V
acc. to IEC 60947-4-1
acc. to UL / CSA	600 V
Rated impulse withstand voltage Uimp.	6 kV
Electromagnetic compatibility	Devices complying with IEC 60947-1 / EN 60947-1 - Environment A
	EN 50121-3-2
Ambient air temperature	-40...+70 °C
Operation in free air
Storage	-60...+80 °C
Climatic withstand	Category B according to IEC 60947-1 Annex Q
Maximum operating altitude (without derating)	3000 m
Mechanical durability	10 millions operating cycles
Number of operating cycles
Maximum switching frequency	3600 cycles/h
Shock and vibration withstand
acc. to IEC 61373	Category 1, class B

Remark for 4-pole contactors itted 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
A2	2	R4	R6	8	A2	2	R4	R6	8
			Load					Load
			Load					Load

2

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