LF-G (ALFG)
–2–
ASCTB196E 201606-T
RATING
1. Coil data
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. Coil holding voltage is the coil voltage after 100 ms from the applied nominal coil voltage.
*4. 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.
Nominal coil
voltage
Pick-up voltage
(at 20°C 68°F)
(Initial)
Drop-out voltage
(at 20°C 68°F)
(Initial)
Nominal operating
current
[±10%] (at 20°C 68°F)
Coil resistance
[±10%] (at 20°C 68°F)
Nominal operating
power
Max. applied voltage
(at 20°C 68°F)
9V DC
70%V or less of
nominal voltage
10%V or more of
nominal voltage
155mA 58Ω
1,400mW
120%V of
nominal voltage
12V DC 117mA 103Ω
18V DC 78mA 230Ω
24V DC 59mA 410Ω
Characteristics Item
Specifications
Standard type High capacity type
Contact Gap 1.5 mm .059 inch type
Contact Gap 1.8 mm .071 inch type
Contact Gap 1.5 mm .059 inch type Contact Gap 1.8 mm .071 inch type
Contact
Arrangement 1 Form A
Contact resistance (Initial) Max. 100 mΩ (By voltage drop 6 V DC 1A)
Contact material AgSnO2 type
Rating
Nominal switching capacity 22A 250V AC 31A 250V AC 33A 250V AC
Max. switching power 5,500VA 7,750VA 8,250VA
Max. switching voltage 250V AC
Max. switching current 22A (AC) 31A (AC) 33A (AC)
Nominal operating power 1,400mW
Min. switching capacity
(Reference value)*
1
100mA 5V 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
2,500 Vrms for 1 min. (Detection current: 10 mA)
Between contact
and coil
4,000 Vrms for 1 min. (Detection current: 10 mA)
Surge breakdown voltage*
2
(Between contact and coil) (Initial)
6,000 V
Coil holding voltage*
3
35 to 120%V (contact carrying
current: 22A, at 20°C 68°F)
45 to 80%V (contact carrying
current: 22A, at 85°C 185°F)
35 to 120%V (contact carrying
current: 31A, at 20°C 68°F)
45 to 80%V (contact carrying
current: 31A, at 85°C 185°F)
35 to 120%V (contact carrying
current: 33A, at 20°C 68°F)
45 to 80%V (contact carrying
current: 33A, at 85°C 185°F)
Operate time (at 20°C 68°F) (Initial) Max. 20 ms (at nominal coil voltage excluding contact bounce time.)
Release time (at 20°C 68°F) (Initial) Max. 10 ms (at nominal coil voltage excluding contact bounce time, without diode)
Mechanical
characteristics
Shock
resistance
Functional Min. 100 m/s
2
(Half-wave pulse of sine wave: 11 ms; detection time: 10μs.)
Destructive Min. 1,000 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 1.5 mm
Expected life
Mechanical
Contact Gap 1.5 mm .059 inch type: Min. 10
6
(at 180 times/min.)
Contact Gap 1.8 mm .071 inch type: Min. 5×10
5
(at 180 times/min.)
Electrical
Resistive load
22A 250V AC, Min. 3×10
4
(at 20 times/min.)
——
Inductive load
Destructive: 22A 250V AC
(cos
φ
= 0.8),
Min. 3×10
4
(on:off = 0.1s:10s)
Over load: 35A 250V AC
(cos
φ
= 0.8),
Min. 50 (on:off = 0.1s:10s)
Destructive: 31A 250V AC
(cos
φ
= 0.8),
Min. 3×10
4
(on:off = 0.1s:10s)
Over load: 47A 250V AC
(cos
φ
= 0.8),
Min. 50 (on:off = 0.1s:10s)
Destructive: 33A 250V AC
(cos
φ
= 0.8),
Min. 3×10
4
(on:off = 0.1s:10s)
Over load: 50A 250V AC
(cos
φ
= 0.8),
Min. 50 (on:off = 0.1s:10s)
Conditions
Conditions for operation, transport
and storage*
4
Ambient temperature: –40°C to +60°C –40°F to +140°F (When nominal coil voltage applied)
–40°C to +85°C –40°F to +185°F (Coil holding voltage is when 45 to 80%V
of nominal coil voltage is applied.)
Humidity: 5 to 85% R.H. (Not freezing and condensing at low temperature)
Air pressure: 86 to 106 kPa
Unit weight Approx. 23 g .81 oz
