Panasonic CB1AP12 12 V Automotive Relay 40 A 1400 mW CB1AP12 Data Sheet

CB

1

ds_61202_0000_en_cb: 200407D

Contact
(1) Standard type (12V coil voltage)

#1 This value can change due to the switching frequency, environmental conditions, and desired reliability level, therefore it is recommended to check this with the actual load.

(2) Standard type (24V coil voltage)

*

1

All other specifications are the same as those of standard type (12V coil voltage)

(3) Heat resistant type (12V, 24V coil voltage)

*

1

All other specifications are the same as those of standard type (12V coil voltage)

*

2

PC board type

* Current value in which carry current is possible when the coil temperature is 180°C 

356°F

.

CB RELAYS

Arrangement

1 Form A

1 Form C

High contact capacity 

(1 Form A)

Rating

Nominal switching 
capacity

40 A 14 V DC

N.O.: 40 A 14 V DC
N.C.: 30 A 14 V DC

70 A 14 V DC (at 20

°C 

68

°F

)

50 A 14 V DC (at 85

°C 

185

°F

)

Max. carry current 
(Initial) (at 85

°C 

185

°F

)

N.O.: 40 A 14 V DC

N.O.: 40 A 14 V DC
N.C.: 30 A 14 V DC

N.O.: 40 A 14 V DC

Initial contact resistance 
(By voltage drop 6 V DC 1 A)

Max. 15m

Ω

Contact material

Ag alloy (Cadmium free)

Min. switching capacity

#1

1 A 12 V DC (12 V DC), 1 A 24 V DC (24 V DC),

Expected 
life

Mechanical (at 120 cpm)

Min. 10

6

Electrical (at rated load)

Flux-resistant type: Min. 10

5

*

1

Sealed type: Min. 5 

× 10

4

Arrangement

1 Form A

1 Form C

High contact capacity 

(1 Form A)

Rating

Nominal switching 
capacity

20 A 28V DC

N.O.: 20 A 28 V DC
N.C.: 10 A 28 V DC

20 A 28V DC

Max. carry current 
(Initial) (at 85

°C 

185

°F

)

20 A 28 V DC

N.O.: 20 A 28 V DC
N.C.: 10 A 28 V DC

20 A 28 V DC

Type

12V coil voltage

24V coil voltage

Arrangement

1 Form A

1 Form C

High contact 

capacity 

(1 Form A)

1 Form A

1 Form C

High contact 

capacity 

(1 Form A)

Rating

Nominal switching 
capacity

40 A 14V DC

N.O.: 40 A 14 V DC
N.C.: 30 A 14 V DC

40 A 14V DC

20 A 28 V DC

N.O.: 20 A 28 V DC
N.C.: 10 A 28 V DC

20 A 28 V DC

Max. carry current 
(Initial) (at 85

°C 

185

°F

)*

50 A 14 V DC

N.O.: 50 A 14 V DC
N.C.: 30 A 14 V DC

  45 A 14 V DC
  50 A 14 V DC*

2

25 A 28V DC

N.O.: 25 A 28 V DC
N.C.: 10 A 28 V DC

25 A 28V DC

Arrangement

Coil voltage

Nominal operating power

1 Form A,
1 Form C

12V DC

1.4W

24V DC

1.8W

High contact capacity 
(1 Form A)

12V DC

1.8W (1.4W: PC board type)

24V DC

1.8W (1.4W: PC board type)

22.0

.866

25.5

1.004

26.5

1.043

mm 

inch

22.0

.866

25.0

.984

26.0

1.024

°C

°F