Datasheet
CB
7
ds_61202_0000_en_cb: 200407D
CB RELAYS High capacity type (Heat resistant type)
1. Ambient temperature and current value in
which carry current is possible
*Precondition: Initial
Asssumption:
• Maximum mean coil temperature = 180°C
•
Curves are based on 1.4W (Nominal power consumption
of the unsupprressed coil at nominal voltage)
2. Max. switching capability
(High capacity type)
3. Ambient temperature and operating
temperature range
(Heat resistant type)
20
40
60
80
100
120
140
150
90 100 110 120 130 140 150
Applied Coil Voltage (% Nominal Voltage)
Maximum Allowable Ambient Temperature, °C
70A
30A
40A
50A
60A
0
Switching current, A
Switching voltage, VDC
10
50
40
30
20
60
040608020 100
10
5
cycle line
Actual value
(Max. 1 cycle)
0
Ambient temperature,
°C
Coil applied voltage, VDC
5
10
15
35
30
25
20
40
-40 -20 20 40 60 1000
120 125
140
80
Operation range
Drop-out voltage
(Cold start)
Pick-up voltage
(Cold start)
4. Distribution of pick-up and drop-out voltage
Sample: CB1aHF-12V, 53pcs.
5. Distribution of operate and release time
Sample: CB1aHF-12V, 53pcs.
6. Contact resistance
Sample: CB1aHF-12V, 53pcs.
(By voltage drop 6V DC 1A)
0
30
20
10
40
50
60
70
1.51.00.50 2.52.0 3.0 3.5 4.5 5.04.0 5.5 6.0 6.5
Voltage, V
Frequency
Pick-up voltage
Drop-out voltage
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, m
Ω
Frequency
1.0 1.2 1.4 1.6 1.8 2.2 2.42.0 2.6 2.8
6-(1). Electrical life test (Motor free)
Sample: CB1aH-12V, 3pcs.
Load: Inrush current: 64A/Steady current: 35A
Fan motor actual load (motor free) 12V DC
Switching frequency: (ON:OFF = 3s:7s)
Ambient temperature: Room temperature
Circuit
Change of pick-up and drop-out voltage Change of contact resistance
10s
3s 7s
M
0
No. of operations, × 10
4
Pick-up and drop-out voltage, V
Max.
Max.
Min.
Min.
X
X
2
1
4
6
8
9
7
5
3
10
0105
Pick-up voltage
Drop-out voltage
0
No. of operations, × 10
4
Contact resistance, mΩ
Max.
Min.
X
10
50
20
30
40
0105
Load current waveform
Inrush current: 64A, Steady current: 35A,
500ms
10A