Other lamp technologies - choice of contactors

Modular contactors and impulse relays do not use the same technologies. Their rating is determined according to different standards.
For example, for a given rating, an impulse relay is more efficient than a modular contactor for the control of light fittings with a strong inrush current, or with a low power factor (non-compensated inductive circuit).

Figure 51 shows the maximum number of light fittings for each relay, according to the type, power and configuration of a given lamp. As an indication, the total acceptable power is also mentioned.

• These values are given for a 230 V circuit with 2 active conductors (single-phase phase/neutral or two-phase phase/phase). For 110 V circuits, divide the values in the table by 2.
• To obtain the equivalent values for the whole of a 230 V three-phase circuit, multiply the number of lamps and the total acceptable power:
  • by [math]\displaystyle{ \sqrt 3 }[/math] (1.73) for circuits without neutral;
  • by [math]\displaystyle{ \sqrt 3 }[/math] for circuits with 230 V between phase and neutral or 400 V between phases.

Note: The power ratings of the lamps most commonly used are shown in bold.

For powers not mentioned, use a proportional rule with the nearest values.

Products			iCT contactors								iCT+ contactors
Type of lamp			Maximum number of light fittings for a single-phase circuit and maximum power output per circuit
			16 A		25 A		40 A		63 A		20 A
Basic incandescent lamps, LV halogen lamps, replacement mercury vapour lamps (without ballast)
	40 W		38	1500 W 2000 W	57	2300 W	115	4600 W	172	6900 W	4660 W x cos φ
	60 W		30		45		85		125
	75 W		25		38		70		100
	100 W		19		28		50		73
ELV 12 or 24 V halogen lamps
With ferromagnetic transformer	20 W		15	300 W à 600 W	23	450 W à 900 W	42	850 W à 1950 W	63	1250 W à 2850 W	4660 W x Cos φ
	50 W		10		15		27		42
	75 W		8		12		23		35
	100 W		6		8		18		27
With electronic transformer	20 W		62	1250 W à 1600 W	90	1850 W à 2250 W	182	3650 W à 4200 W	275	5500 W à 6000 W
	50 W		25		39		76		114
	75 W		20		28		53		78
	100 W		16		22		42		60
Fluorescent tubes with starter and ferromagnetic ballast
1 tube without compensation(a)	15 W		22	330 W à 850 W	30	450 W à 1200 W	70	1050 W à 2400 W	100	1500 W à 3850 W	4660 W x cos φ
	18 W		22		30		70		100
	20 W		22		30		70		100
	36 W		20		28		60		90
	40 W		20		28		60		90
	58 W		13		17		35		56
	65 W		13		17		35		56
	80 W		10		15		30		48
	115 W		7		10		20		32
1 tube with parallel compensation(b)	15 W	5 µF	15	200 W à 800 W	20	300 W à 1200 W	40	600 W à 2400 W	60	900 W à 3500 W
	18 W	5 µF	15		20		40		60
	20 W	5 µF	15		20		40		60
	36 W	5 µF	15		20		40		60
	40 W	5 µF	15		20		40		60
	58 W	7 µF	10		15		30		43
	65 W	7 µF	10		15		30		43
	80 W	7 µF	10		15		30		43
	115 W	16 µF	5		7		14		20
2 or 4 tubes with series compensation	2 x 18 W		30	1100 W à 1500 W	46	1650 W à 2400 W	80	2900 W à 3800 W	123	4450 W à 5900 W
	4 x 18 W		16		24		44		68
	2 x 36 W		16		24		44		68
	2 x 58 W		10		16		27		42
	2 x 65 W		10		16		27		42
	2 x 80 W		9		13		22		34
	2 x 115 W		6		10		16		25
Fluorescent tubes with electronic ballast
1 or 2 tubes	18 W		74	1300 W à 1400 W	111	2000 W à 2200 W	222	4000 W à 4400 W	333	6000 W à 6600 W	4660 W x cos φ
	36 W		38		58		117		176
	58 W		25		37		74		111
	2 x 18 W		36		55		111		166
	2 x 36 W		20		30		60		90
	2 x 58 W		12		19		38		57
Compact fluorescent lamps
With external electronic ballast	5 W		210	1050 W à 1300 W	330	1650 W à 2000 W	670	3350 W à 4000 W		Non testé	4660 W x cos φ
	7 W		150		222		478
	9 W		122		194		383
	11 W		104		163		327
	18 W		66		105		216
	26 W		50		76		153
With integral electronic ballast (replacement for incandescent lamps)	5 W		160	800 W à 900 W	230	1150 W à 1300 W	470	2350 W à 2600 W	710	3550 W à 3950 W
	7 W		114		164		335		514
	9 W		94		133		266		411
	11 W		78		109		222		340
	18 W		48		69		138		213
	26 W		34		50		100		151
LED lamps
With driver	10 W		48	500 W à 1400 W	69	700 W à 1950 W	98	1000 W à 3000 W	200	2000 W à 6200 W	4660 W x cos φ
	30 W		38		54		77		157
	50 W		27		39		56		114
	75 W		17		25		36		73
	150 W		9		12		18		37
	200 W		7		9		15		31
Low-pressure sodium vapour lamps with ferromagnetic ballast with external ignitor
Without compensation(a)	35 W		5	270 W à 360 W	9	320 W à 720 W	14	500 W à 1100 W	24	850 W à 1800 W	4660 W x cos φ
	55 W		5		9		14		24
	90 W		3		6		9		19
	135 W		2		4		6		10
	180 W		2		4		6		10
With parallel compensation(b)	35 W	20 µF	3	100 W à 180 W	5	175 W à 360 W	10	350 W à 720 W	15	550 W à 1100 W
	55 W	20 µF	3		5		10		15
	90 W	26 µF	2		4		8		11
	135 W	40 µF	1		2		5		7
	180 W	45 µF	1		2		4		6
High-pressure sodium vapour lamps Metal-iodide lamps
With ferromagnetic ballast with external ignitor, without compensation(a)	35 W		16	600 W	24	850 W à 1200 W	42	1450 W à 2000 W	64	2250 W à 3200 W	4660 W x cos φ
	70 W		8		12		20		32
	150 W		4		7		13		18
	250 W		2		4		8		11
	400 W		1		3		5		8
	1000 W		0		1		2		3
With ferromagnetic ballast with external ignitor and parallel compensation(b)	35 W	6 µF	12	450 W à 1000 W	18	650 W à 2000 W	31	1100 W à 4000 W	50	1750 W à 6000 W
	70 W	12 µF	6		9		16		25
	150 W	20 µF	4		6		10		15
	250 W	32 µF	3		4		7		10
	400 W	45 µF	2		3		5		7
	1000 W	60 µF	1		2		3		5
	2000 W	85 µF	0		1		2		3
With electronic ballast	35 W		24	850 W à 1350 W	38	1350 W à 2200 W	68	2400 W à 4000 W	102	3600 W à 600 W
	70 W		18		29		51		76
	150 W		9		14		26		40

Fig. N51: Maximum number of light fittings for each relay, according to the type, power and configuration of a given lamp (Concluded)

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