CMA31

Category:

Characteristic

Heavy duty general purpose automotive relay Dimensions: 27.8×27.8×24.6(mm) Switching capacity 40A Available in 2 mounting options, socket or bracket mount Applications: air compressor, heater, fan motor, blower fan, defogger, etc

Authentication
Naming rules
Specifications
Outline, Wiring, Installation Hole Diagram
Product Packaging Specifications
Characteristic curve
Coil Specification Table

Authentication
- Commodity name: CMA31
- Commodity ID: C-016
- 触点形式: 1 Form A, 1 Form B, 1 Form C
- 触点负载: 12VDC: 40A14VDC(A) 30A14VDC(B) 30A14VDC(C)
- 线圈功率: Nominal Coil Power:1.6W
Heavy duty general purpose automotive relay Dimensions: 27.8×27.8×24.6(mm) Switching capacity 40A Available in 2 mounting options, socket or bracket mount Applications: air compressor, heater, fan motor, blower fan, defogger, etc
Naming rules

Specifications

CONTACT DATA

Contact Form			1 Form A, 1 Form B, 1 Form C
Contact Material					Ag Alloy
Contact Rating (Resistive)		12VDC: 40A14VDC(A) 30A14VDC(B) 30A14VDC(C)			24VDC: 20A28VDC(A) 10A28VDC(B) NO/NC:20A/10A28VDC(C)
Contact Resistance				Max. 100mΩ (6VDC 1A)
Load	Max. Switching Voltage			75VDC
	Max. Switching Current			Refer to table1
	Max. Switching Power			420W(C), 560W(A)
Life	Electrical			100,000 operations
	Mechanical			10,000,000 operations

COIL DATA

Nominal Coil Power	1.6W
Nominal Coil Power(With Resistor)	1.8W

GENERAL DATA

Operate Time		Max.10ms
Release Time		Max.10ms
		Max.20ms(With Diode)
Operating Temperature		-40℃ to +85℃,-40℃ to +125℃(T)
Humidity		35~95%RH,+40℃
Shock Resistance	Endurance	1,000m/s
	Misoperation	100m/s
Vibration Resistance	Endurance	10~55Hz, 1.5mm double amplitude
	Misoperation	10~55Hz, 1.5mm double amplitude
Weight	Approximately 37.0g (Bracket) Approximately 33.0g (Without Bracket)

Table 1

Load	1 Form A	1 Form B	1 Form C
Load	1 Form A	1 Form B	NO	NC
Contact Rating Current	40A	30A	40A	30A
Max. Make Current	100A	60A	100A	30A
Max. Break Current	40A	30A	40A	30A

Outline, Wiring, Installation Hole Diagram

Product Packaging Specifications

Product number	Inner packing	Carton specifications length × width × height (mm)	Total quantity (only)	Net weight(Kg)	Gross weight (Kg)
CMA31	50pcs/tube	403×348×242	250/box	9.5	11.0

Characteristic curve
Coil Specification Table

Authentication
Naming rules
Specifications
Outline, Wiring, Installation Hole Diagram
Product Packaging Specifications
Characteristic curve
Coil Specification Table

- Commodity name: CMA31
- Commodity ID: C-016
- 触点形式: 1 Form A, 1 Form B, 1 Form C
- 触点负载: 12VDC: 40A14VDC(A) 30A14VDC(B) 30A14VDC(C)
- 线圈功率: Nominal Coil Power:1.6W
Heavy duty general purpose automotive relay Dimensions: 27.8×27.8×24.6(mm) Switching capacity 40A Available in 2 mounting options, socket or bracket mount Applications: air compressor, heater, fan motor, blower fan, defogger, etc
Naming rules

Specifications

CONTACT DATA

Contact Form			1 Form A, 1 Form B, 1 Form C
Contact Material					Ag Alloy
Contact Rating (Resistive)		12VDC: 40A14VDC(A) 30A14VDC(B) 30A14VDC(C)			24VDC: 20A28VDC(A) 10A28VDC(B) NO/NC:20A/10A28VDC(C)
Contact Resistance				Max. 100mΩ (6VDC 1A)
Load	Max. Switching Voltage			75VDC
	Max. Switching Current			Refer to table1
	Max. Switching Power			420W(C), 560W(A)
Life	Electrical			100,000 operations
	Mechanical			10,000,000 operations

COIL DATA

Nominal Coil Power	1.6W
Nominal Coil Power(With Resistor)	1.8W

GENERAL DATA

Operate Time		Max.10ms
Release Time		Max.10ms
		Max.20ms(With Diode)
Operating Temperature		-40℃ to +85℃,-40℃ to +125℃(T)
Humidity		35~95%RH,+40℃
Shock Resistance	Endurance	1,000m/s
	Misoperation	100m/s
Vibration Resistance	Endurance	10~55Hz, 1.5mm double amplitude
	Misoperation	10~55Hz, 1.5mm double amplitude
Weight	Approximately 37.0g (Bracket) Approximately 33.0g (Without Bracket)

Table 1

Load	1 Form A	1 Form B	1 Form C
Load	1 Form A	1 Form B	NO	NC
Contact Rating Current	40A	30A	40A	30A
Max. Make Current	100A	60A	100A	30A
Max. Break Current	40A	30A	40A	30A

Outline, Wiring, Installation Hole Diagram

Product Packaging Specifications

Product number	Inner packing	Carton specifications length × width × height (mm)	Total quantity (only)	Net weight(Kg)	Gross weight (Kg)
CMA31	50pcs/tube	403×348×242	250/box	9.5	11.0

Characteristic curve
Coil Specification Table

Keyword：

Signal relay

Power relay

Automotive relay

Magnetic latching relay

Solid state relay

New energy relay

CMA36

CMA35