Datasheet

CT (ACT)
–2–
ASCTB228E 201709-T
2. Specifications
Notes: *1. Depends on connection conditions. Also, this does not guarantee repeated switching. We recommend that you confirm operation under actual conditions.
*2. 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.
*3. The upper operation ambient temperature limit is the maximum temperature that can satisfy the coil temperature rise value. For details, please refer to the
“Automotive Relay Users Guide”.
Please inquire our sales representative if you will be using the relay in a high temperature atmosphere (110°C 230°F).
If the relay is used continuously for long periods of time with coils on both sides in an energized condition, breakdown might occur due to abnormal heating
depending on the carrying condition. Therefore, please inquire our sales representative when using with a circuit that causes an energized condition on both sides
simultaneously.
REFERENCE DATA
Item Specifications
Contact data
Contact arrangement 1 Form C × 2, 1 Form C
Contact resistance (initial) Max. 100mΩ (N.O.: Typ. 7mΩ, N.C.: Typ. 10mΩ) (By voltage drop 1A 6V DC)
Contact material Ag alloy
Rated switching capacity
(resistive)
N.O. side: 20 A 14V DC, N.C. side: 10 A 14V DC
Max. carrying current*
1
N.O. side: 25 A for 1 hour, 35 A for 2 minutes (Coil applied voltage 14V DC, at 20°C 68°F)
20 A for 1 hour, 30 A for 2 minutes (Coil applied voltage 14V DC, at 85°C 185°F)
Min. switching load
(resistive)*
2
1 A 14V DC (at 20°C 68°F)
Insulated resistance (initial) Min. 100 MΩ (at 500V DC, Measurement at same location as “Dielectric strength” section.)
Dielectric
strength (initial)
Between open contacts 500 Vrms for 1 min. (Detection current: 10mA)
Between contacts and coil 500 Vrms for 1 min. (Detection current: 10mA)
Time
characteristics
(initial)
Operate (Set) time
(at Rated voltage)
Max. 10ms (at 20°C 68°F, without bounce time)
Release (Reset) time
(at Rated voltage)
Max. 10ms (at 20°C 68°F, without bounce time) (without diode)
Shock
resistance
Functional Min. 100 m/s
2
{approx. 10G} (Half-wave pulse of sine wave: 11ms; detection time: 10μs)
Destructive Min. 1,000 m/s
2
{approx. 100G} (Half-wave pulse of sine wave: 6ms)
Vibration
resistance
Functional 10 to 100 Hz, Min. 44.1 m/s
2
{approx. 4.5G} (Detection time: 10μs)
Destructive
10 to 500 Hz, Min. 44.1 m/s
2
{approx. 4.5G},
Time of vibration for each direction; X, Y direction: 2 hours, Z direction: 4 hours
Expected life
Mechanical Min. 10
7
(at 120 cpm)
Electrical
<Resistive load>
Min. 10
5
(at rated switching capacity, operating frequency: 1s ON, 9s OFF)
<Motor load>
N.O. side: Min. 2 × 10
5
at Inrush 25A, Steady 5A 14 V DC,
Min. 10
5
at 25A 14 V DC motor lock condition
N.C. side: Min. 2 × 10
5
at brake current 20A 14 V DC (operating frequency: 0.5s ON, 9.5s OFF)
Conditions
Conditions for usage,
transport and storage*
3
Ambient temperature: –40 to +85°C –40 to +185°F,
Humidity: 5 to 85% R.H. (Please avoid icing or condensation)
Weight Twin type: approx. 8 g .28 oz, 1 Form C type: approx. 4 g .14 oz
∗
1-(1). Coil temperature rise (at room
temperature)
Sample: ACT212, 3pcs.
Carrying current: 0A, 10A, 20A
Ambient temperature: Room temperature
1-(2). Coil temperature rise (at 85°C 185°F)
Sample: ACT212, 3pcs.
Carrying current: 0A, 10A, 20A
Ambient temperature: 85°C 185°F
2. Max. switching capability (Resistive load,
initial)
0
20
40
60
80
100
120
140
12 14016
20A
10A
0A
Coil applied voltage, V
Temperature rise, °C
(when coil powered on one side)
0
20
40
60
80
100
120
140
12 14016
20A
10A
0A
Coil applied voltage, V
Temperature rise, °C
(when coil powered on one side)
0
Switching current, A
Switching voltage, VDC
10
50
40
30
20
60
020304010 50
(N.O. side: room temperature)