DK
–3–
ASCTB177E 201702-T
2. Specifications
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 ±1.2×50μs 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.
3. Electrical life
Condition: Resistive load, at 20 times/min.
REFERENCE DATA
Characteristics Item Specifications
Contact
Arrangement 1 Form A 1 Form A 1 Form B 2 Form A
Contact resistance (Initial) Max. 30 mΩ (By voltage drop 6 V DC 1A)
Contact material Au-flashed AgSnO2 type Au-flashed AgNi type
Rating
Nominal switching capacity (resistive load) 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
Max. switching power (resistive load) 2,500VA, 300 W 2,000 VA, 240 W 2,000 VA, 240 W
Max. switching voltage 250 V AC, 125 V DC (0.2A) 250 V AC, 125 V DC (0.2A) 250 V AC, 125 V DC (0.2A)
Max. switching current 10 A 8 A 8 A
Min. switching capacity (Reference value)*
1
10m A 5 V DC
Electrical
characteristics
Insulation resistance (Initial) Min. 1,000MΩ (at 500V DC) Measurement at same location as “Breakdown voltage” section.
Breakdown voltage
(Initial)
Between open contacts 1,000 Vrms for 1min. (Detection current: 10mA.)
Between contact and coil 4,000 Vrms for 1min. (Detection current: 10mA.)
Surge breakdown
voltage*
2
(Initial)
between contacts and coil 10,000 V
Operate time [Set time] (at 20°C 68°F)
Max. 10 ms (Approx. 5 ms) [10 ms (Approx. 5 ms)]
(Nominal coil voltage applied to the coil, excluding contact bounce time.)
Release time [Reset time] (at 20°C 68°F)
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
Functional Min. 98 m/s
2
(Half-wave pulse of sine wave: 11 ms; detection time: 10μs.)
Destructive Min. 980 m/s
2
(Half-wave pulse of sine wave: 6 ms.)
Vibration resistance
Functional 10 to 55 Hz at double amplitude of 1.5 mm (Detection time: 10μs.)
Destructive 10 to 55 Hz at double amplitude of 3 mm
Expected life Mechanical Min. 5×10
7
(at 300 times/min.)
Conditions Conditions for operation, transport and storage*
3
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)
Unit weight Approx. 5 g .18 oz Approx. 6 g .21 oz Approx. 6 g .21 oz
Type Switching capacity Number of operations
1 Form A
10A 250V AC
10A 30V DC
Min. 1×10
5
1 Form A 1 Form B, 2 Form A
8A 250V AC
8A 30V DC
Min. 1×10
5
1-(1). Maximum operating power (1 Form A) 1-(2). Maximum operating power
(1 Form A 1 Form B, 2 Form A)
2-(1). Life curve (1 Form A)
Contact voltage, V
Contact current, A
10 100 1,000
0.1
1
10
5
100
AC resistive load
DC resistive load
DC inductive load
(L/R = 7 ms)
AC inductive load
(cosϕ= 0.4)
Contact voltage, V
Contact current, A
10 100 1,000
0.1
1
10
5
100
AC resistive load
AC inductive load
(cosϕ= 0.4)
DC inductive load
(L/R = 7 ms)
DC resistive load
012345678910
10
100
1,000
1
Life, ×10
4
Contact current, A
250 V AC resistive load
30 V DC resistive load
250 V AC inductive load (cosϕ = 0.4)
30 V DC inductive load (L/R = 7 ms)
