Datasheet
LF-G (ALFG)
2
ds_61B12_en_lfg: 240913D
RATING
Coil data
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 1.250s according to JEC-212-1981
*3.In accordance with UL class-F
*4.Coil holding voltage is the coil voltage after 100 ms from the applied nominal coil voltage.
*5.The upper limit of the ambient temperature is the maximum temperature that can satisfy the coil temperature rise value. Refer to 1. Usage, transport and storage
conditions in NOTES.
Nominal coil
voltage
Pick-up voltage
(at 20C 68F)
(Initial)
Drop-out voltage
(at 20C 68F)
(Initial)
Nominal operating
current
[10%] (at 20C 68F)
Coil resistance
[10%] (at 20C 68F)
Nominal operating
power
Max. allowable voltage
(at 20C 68F)
9V DC
70%V or less of
nominal voltage
10%V or more of
nominal voltage
155mA 58
1,400mW
120%V of
nominal voltage
12V DC 117mA 103
18V DC 78mA 230
24V DC 59mA 410
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 m (By voltage drop 6 V DC 1A)
Contact material AgSnO
2 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. 1,000M (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
Temperature rise*
3
(coil)
Max. 95C 203F (By resistive
method, nominal coil voltage
applied to the coil; contact carrying
current: 22A, at 60C 140F)
Max. 70C 158F (By resistive
method, 80%V of nominal coil
voltage applied to the coil; contact
carrying current: 22A, at 85C
185F)
Max. 95C 203F (By resistive
method, nominal coil voltage
applied to the coil; contact carrying
current: 31A, at 60C 140F)
Max. 70C 158F (By resistive
method, 80%V of nominal coil
voltage applied to the coil; contact
carrying current: 31A, at 85C
185F)
Max. 95C 203F (By resistive
method, nominal coil voltage
applied to the coil; contact carrying
current: 33A, at 60C 140F)
Max. 70C 158F (By resistive
method, 80%V of nominal coil
voltage applied to the coil; contact
carrying current: 33A, at 85C
185F)
Coil holding voltage*
4
35 to 120%V (contact carrying
current: 22A, at 20C 68F)
45 to 80%V (contact carrying
current: 22A, at 85C 185F)
35 to 120%V (contact carrying
current: 31A, at 20C 68F)
45 to 80%V (contact carrying
current: 31A, at 85C 185F)
35 to 120%V (contact carrying
current: 33A, at 20C 68F)
45 to 80%V (contact carrying
current: 33A, at 85C 185F)
Operate time (at 20C 68F) Max. 20 ms (at nominal coil voltage excluding contact bounce time.)
Release time (at 20C 68F) 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: 10s.)
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: 10s.)
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. 510
5
(at 180 times/min.)
Electrical
Resistive load
22A 250V AC, Min. 310
4
(at 20 times/min.)
——
Inductive load
Destructive: 22A 250V AC
(cos = 0.8),
Min. 310
4
(on:off = 0.1s:10s)
Over load: 35A 250V AC
(cos = 0.8),
Min. 50 (on:off = 0.1s:10s)
Destructive: 31A 250V AC
(cos = 0.8),
Min. 310
4
(on:off = 0.1s:10s)
Over load: 47A 250V AC
(cos = 0.8),
Min. 50 (on:off = 0.1s:10s)
Destructive: 33A 250V AC
(cos = 0.8),
Min. 310
4
(on:off = 0.1s:10s)
Over load: 50A 250V AC
(cos = 0.8),
Min. 50 (on:off = 0.1s:10s)
Conditions
Conditions for operation, transport
and storage*
5
Ambient temperature: –40C to +60C –40F to +140F (When nominal coil voltage applied)
–40C to +85C –40F to +185F (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