Electroline Electrical Co.,LTD.

3TF AC Contactor

Application

3TF series AC contactors are suitable in electrical system with AC 50/60Hz, rated operational voltage up to 380V, rated operational current up to 630A to make or break temote motors or system. They can form electronmagnetic starters with suitable thermal overload relays 3UA series to protect system and motors against overload or phase-failure. They are made according to IEC947, BS5424 & VDE0660. The contactor is a straight motion mechanism having double-breaking contacts. The auxiliary contacts are arranged 2NO, 2NX at most. It is employed the flexible locking connection between the contact support and core. There are no arc- isolated panel in the le≥2A contactors. In the In≥2A contactors, there are moulded arc-chute with arc-isolated panel. Because all contacts are made of high non-fusibility and against corrosion silver alloy. All series products can be mounted by screws, le≥2A contactor also by installation rail.

Specificarions

Type	Rated thermal current (A)	Rated operation current (A)		Controllabe of motor (KW)				Type of auxiliary contact
		Rated operation current (A)		AC-3		AC-4
		380V	660V	380V	660V	380V	660V
3TF40	20	9	7	4	5.5	1.4	2.4	NO NC 1NO+1NC 2NO+2NC
3TF41	20	12	8.5	5.5	7.5	1.9	3.3
3TF42	30	16	12.5	7.5	11	3.5	6
3TF43	30	22	16.5	10	15	4	6.6
3TF44	55	32	24	15	22	7.5	13
3TF45	55	38	24	18.5	22	9	15.5
3TF46	80	45	40	22	37	12	20.8
3TF47	80	63	60	30	55	14	24.3	2NC+2NO 4NC+4NO
3TF48	100	75	60	37	55	17	29.5
3TF49	100	85	80	45	75	21	36
3TF50	160	110	95	55	90	27	46.9
3TF51	160	140	120	75	110	35	60
3TF52	200	170	160	90	150	38	66
3TF53	210	205	165	110	160	50	86
3TF54	300	250	230	132	220	58	100
3TF55	300	300	260	160	250	66	114
3TF56	400	400	380	200	335	81	140
3TF68	630	630	600	335	560	160	278