RDCH8 Series (AC Contactor)

The RDCH8 series AC contactor is primarily designed for circuits operating at 50Hz or 60Hz, with a rated operational voltage of up to 400V and a rated operational current up to 63A.It is engineered to control household appliances and low-inductive loads, while also capable of managing household motor loads—though control power must be reduced accordingly.

This product is suitable for automation systems in residential, hotel, and apartment settings, as well as for integration into other electrical appliances.

Compliant with the IEC61095 standard, it ensures reliability, safety, and compatibility across diverse applications.

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Product Detail

Parameters

Samples & Structures

Dimensions

Normal Working Condition and Installation Environment

1.Temperature: -5°C~+40°C, the average temperature of 24 hours should not exceed 35°C

2.Atitude: should not exceed 2000m

3.The relative humidity: no more than 50%, when Temperature is +40°C. The product can withstandthe higher humidity under lower temperature, for instance, when temperature at +20°C, the productcan withstand 90% relative humidity.

4.Pollution class: 2 class

5.Installation type: Ⅱ class

6.Installation codition: the angle between the prodouct and vertical plane should not exceed 5°

7.Installation methods: adopt 35mm DlN-Rail

8.Protection class:IP20

Main Technical Parameter

1.Poles: 1P, 2P, 3P, 4P

2.The specification see Table 1, Table 2

Model No.(Table 1)	Rated current (pole)	Using type	Rated operational current(A)	Rated insulation voltage (V)	Control power (kw)	Connection type
RDCH8-25	16 (1P/2P)	AC-7a	16	500	3.5	With soft- cable:2x2.5mm² With hard-cable:6mm²
		AC-7b	7	500	1.0
	20 (1P/2P)	AC-7a	20	500	4
		AC-7b	8.5	500	1.2
	25 (1P/2P)	AC-7a	25	500	5.4
		AC-7b	9	500	1.4
	25 (3P/4P)	AC-7a	40	500	16
RDCH8-63	32 (2P)	AC-7a	32	500	7.2	With soft-cable:2x10mm² With hard-cable:25mm²
	32 (3P/4P)	AC-7a	32	500	21
	40 (2P)	AC-7a	40	500	8.6
	40 (3P/4P)	AC-7a	40	500	26
	63 (2P)	AC-7a	63	500	14
	63 (3P/4P)	AC-7a	63	500	40

Pole(Table 2)	Rated current (A)	Rated voltage (V)	NO NC
1P	16~25	220/230	10
2P	16~25	220/230	20
2P	40~63	220/230	02
3P	25	380/400	30
3P	40~63	380/400	30
4P	25	380/400	40
4P	40~63	380/400	04

3.Operation performance: Under the condition of the ambient temperature is in the range of -5℃~+40℃, charge the contactor attract coil with rated control power voltage Us and warm it to the sable state, the contactor should attract stably in any value belween the 85% and 100% of rated control power voltage Us;it should release and break between 75% and 20%(2P) or 10%(1P) of the rated control power voltage Us

4.Mechanical life: no less than 1 million times

5.Electrical life: no less than 100 thousands times

6.Wiring diagram: see Flg1 to Fig5

Overall and Installation Dimensions

Model No.(Table 3)	Rated current(Poles)	D	L	L1	L2	H	H1	H2	H3
RDCH8-25	16/25 1P,2P	18	85	35.5	45.5	66	61	45	23
RDCH8-25	16/25 3P,4P	36	85	35.5	45.5	66	61	45	23
RDCH8-63	40/63 2P	36	85	35.5	45.5	66	61	45	-
RDCH8-63	40/63 3P,4P	54	85	35.5	45.5	66	61	45	-

Main Technical parameter

4.1 Poles: 1P,2P,3P,4P

4.2 The specification see Table 1, Table 2

Model No.	Rated current (pole)	Using type	Rated operational current(A)	Rated insulation voltage (V)	Control power (kw)	Connection type
RDCH8-25	16(1P/2P)	AC-7a	16	500	3.5	With soft-cable:2×2.5mm2 With hard-cable:6mm2
		AC-7b	7	500	1
	20(1P/2P)	AC-7a	20	500	4
		AC-7b	8.5	500	1.2
	25(1P/2P)	AC-7a	25	500	5.4
		AC-7b	9	500	1.4
	25(3P/4P)	AC-7a	40	500	16
RDCH8-63	32(2P)	AC-7a	32	500	7.2	With soft-cable:2x10mm2 With hard-cable:25mm2
	32(3P/4P)	AC-7a	32	500	21
	40 (2P)	AC-7a	40	500	8.6
	40(3P/4P)	AC-7a	40	500	26
	63(2P)	AC-7a	63	500	14
	63(3P/4P)	AC-7a	63	500	40

Pole	Rated current (A)	Rated voltage (V)	NO NC
1P	16-25	220/230	10
2P	16-25	220/230	20
	40-63		02
3P	25	380/400	30
	40-63
4P	25	380/400	40
	40-63		04

4.3 Operation performance: Under the condition of the ambient temperature is in the range of -5°C-+40°C, charce theontactor attract coil with rated control power voltage Us and warm it to the stable state, the contactor should attracstably in any value between the 85% and 100% of rated control power voltage Us;t should release and break between 75% and 20%(2P) or 10%(1P) of the rated control power voltage Us.

4.4 Mechanical life: no less than 1 million times.

4.5 Electrical life: no less than 100 thousands times.

4.6 Wiring diagram: see Flg1 to Fig5

Model No.

10:32A and below,3 poles+1NO auxiliary contact
01:32Aand below,3 poles+1NC auxiliary contact
11:40A and above,3 poles+1NO+1NC auxiliary contacts
004:25A and below,4NO main contacts
008:25A and below,2NO+2NC main contacts

Rated operating current

AC Contactol

Overall and Installation Dimensions: