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DK
2. Speci?cations
Characteristics
Arrangement
Item
1 Form A
Speci?cations
1 Form A 1 Form B 2 Form A
Contact
Rating
Contact resistance (Initial)
Contact material
Nominal switching capacity (resistive load)
Max. switching power (resistive load)
Max. switching voltage
Max. switching current
Nominal operating power
Min. switching capacity (Reference value)* 1
Insulation resistance (Initial)
Max. 30 m ? (By voltage drop 6 V DC 1A)
Au-?ashed AgSnO 2 type Au-?ashed AgNi type
10 A 250 V AC, 10 A 30 V DC 8 A 250 V AC,8 A 30 V DC 8 A 250 V AC,8 A 30 V DC
2,500VA, 300 W 2,000 VA, 240 W 2,000 VA, 240 W
250 V AC, 125 V DC 250 V AC, 125 V DC 250 V AC, 125 V DC
10 A 8 A 8 A
200 mW
10m A 5 V DC
Min. 1,000M ? (at 500V DC) Measurement at same location as “Breakdown voltage” section.
Breakdown voltage
(Initial)
Between open contacts
Between contact and coil
1,000 Vrms for 1min. (Detection current: 10mA.)
4,000 Vrms for 1min. (Detection current: 10mA.)
Electrical
Surge breakdown
voltage* 2 (Initial)
between contacts and coil
10,000 V
characteristics
Temperature rise (coil) (at 65 ° C 149 ° F )
Operate time [Set time] (at 20 ° C 68 ° F )
Release time [Reset time] (at 20 ° C 68 ° F )
Max. 40 ° C (By resistive method, nominal voltage applied to the coil; max. switching current)
Max. 10 ms (Approx. 5 ms) [10 ms (Approx. 5 ms)]
(Nominal coil voltage applied to the coil, excluding contact bounce time.)
Max. 8 ms (Approx. 3 ms) [10 ms (Approx. 3 ms)]
(Nominal coil voltage applied to the coil, excluding contact bounce time.) (without diode)
Mechanical
characteristics
Shock resistance
Vibration resistance
Functional
Destructive
Functional
Destructive
Min. 98 m/s 2 (Half-wave pulse of sine wave: 11 ms; detection time: 10 μ s.)
Min. 980 m/s 2 (Half-wave pulse of sine wave: 6 ms.)
10 to 55 Hz at double amplitude of 1.5 mm (Detection time: 10 μ s.)
10 to 55 Hz at double amplitude of 3 mm
Expected life
Conditions
Mechanical
Electrical
Conditions for operation, transport and storage* 3
Max. operating speed (at rated load)
Min. 5 × 10 7 (at 300 times/min.)
Min. 10 5 (resistive load, at 20 times/min., at rated capacity)
Ambient temperature: –40 ° C to +65 ° C –40 ° F to +149 ° F ,
Humidity: 5 to 85% R.H. (Not freezing and condensing at low temperature)
20 times/min.
Unit weight
Approx. 5 g .18 oz
Approx. 6 g .21 oz
Approx. 6 g .21 oz
Notes: *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. Wave is standard shock voltage of ± 1.2 × 50 μ s according to JEC-212-1981
*3. The upper limit of the ambient temperature is the maximum temperature that can satisfy the coil temperature rise value. Refer to Usage, transport and storage
conditions in NOTES.
REFERENCE DATA
1-(1). Maximum operating power (1 Form A)
100
1-(2). Maximum operating power
(1 Form A 1 Form B, 2 Form A)
2-(1). Life curve (1 Form A)
1,000
10
AC inductive load
(cos ? = 0.4)
AC resistive load
10
AC inductive load
(cos ? = 0.4) AC resistive load
100
5
250 V AC resistive load
30 V DC resistive load
1
DC inductive load
(L/R = 7 ms)
DC resistive
load
1
DC inductive load
(L/R = 7 ms)
DC resistive
load
10
250 V AC inductive load (cos ? = 0.4)
30 V DC inductive load (L/R = 7 ms)
0.1
10
100
1,000
0.1
10
100
1,000
1
0
1
2
3
4
5
6
7
8
9
10
Contact voltage, V
2-(2). Life curve
(1 Form A 1 Form B, 2 Form A)
1,000
Contact voltage, V
3-(1). Operate/Release time (1 Form A)
Tested sample: DK1a-24V, 5 pcs.
9
Contact current, A
3-(2). Operate/Release time
(1 Form A 1 Form B, 2 Form A)
Tested sample: DK1a1b-12V, 5 pcs.
9
8
8
Release time
7
Operate time
7
(with diode)
Max.
x
100
6
Max.
6
Min.
10
250 V AC resistive load
30 V DC resistive load
250 V AC inductive load (cos ? = 0.4)
30 V DC inductive load (L/R = 7 ms)
5
4
3
2
Release time
(with diode)
x
Max.
x
Min.
Min.
Max.
x
5
4
3
2
Operate time
Release time
Max.
x
Min.
Max.
x
Min.
1
Release time
Min.
1
1
0
1
2
3
4
5
6
7
8
9
10
0
80
90
10
110
120
130
140
0
80
90
10
110
120
130
140
Contact current, A
Coil applied voltage,%V
Coil applied voltage,%V
Panasonic Corporation
Automation Controls Business Unit
industrial.panasonic.com/ac/e/
ASCTB177E 201202-T
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