Datasheet

CB (ACB)
–5–
ASCTB220E 201709-T
CB RELAYS (High contact capacity)
1. Allowable ambient temperature
(High resistant and high contact capacity)
2. Ambient temperature and usable voltage
range
(High contact capacity and standard)
3. Distribution of operate (set) and release
(reset) voltage
Sample: CB1aHF-12V, 53pcs.
20
40
60
80
100
120
140
150
90 100 110 120 130 140 150
Applied coil voltage, %V
Maximum allowable ambient temperature, °C
70A
30A
40A
50A
60A
Ambient temperature, °C
Coil applied voltage, VDC
0
5
10
15
35
30
25
20
40
-40 -20 20 40 60 1000 120
80 85
Operate voltage
(Cold start)
Usable voltage range
0
30
20
10
40
50
60
70
1023546
Voltage, V
Quantity, n
Operate voltage
Release voltage
Notes:
• Maximum mean coil temperature: 180°C 356°F
• Curves are based on 1.4W (Nominal power consumption of the unsupprressed coil at nominal voltage)
4. Distribution of operate and release time
Sample: CB1aHF-12V, 53pcs.
5. Contact resistance
Sample: CB1aHF-12V, 53pcs.
(By voltage drop 1A 6V DC)
0
6
4
2
8
10
12
1210814
Release time
Coil voltage, V
Operate and release time, ms
Operate time
0
30
20
10
40
50
60
70
Resistance, mΩ
Quantity, n
1.0 1.2 1.4 1.6 1.8 2.2 2.42.0 2.6 2.8
6. Electrical life test (Motor free)
Sample: CB1aH-12V, 3pcs.
Load: Inrush current: 64A, Steady current: 35A
Fan motor actual load (motor free) 12V DC
Operating frequency: ON 3s, OFF 7s
Ambient temperature: Room temperature
Circuit:
Change of operate (set) and release (reset)
voltage
Change of contact resistance
10s
3s 7s
M
0
No. of operations, × 10
4
Operate and release voltage, V
Max.
Max.
Min.
Min.
Ave.
Ave.
2
1
4
6
8
9
7
5
3
10
0105
Operate voltage
Release voltage
0
No. of operations, × 10
4
Contact resistance, mΩ
Max.
Min.
Ave.
10
50
20
30
40
0105
Load current waveform
Load; Inrush current: 64A, Steady current: 35A
500ms
10A