Load for solar inverter,
Compact size,
LF-G RELAYS (ALFG)
1 Form A 22A/33A
power relays
2. Contact gap: 1.5 mm .059 inch and *Coil holding voltage is the coil voltage
1.8 mm*** .071 inch after 100 ms from the applied nominal
Compliant with European photovoltaic coil voltage.
standard (IEC62109* and VDE0126**). *When the ambient temperature during
* Safety standard of PV power inverter use is 85C 185F, make the coil holding
**German safety standard of PV power inverter
voltage between 45% and 80%V of the
***Due to addition of altitude stipulation (2,000 m
nominal coil voltage.
6,561.68 ft or more) to IEC62109.
5. Conforms to various safety
EN61810-1 certied: 2.5 kV surge
standards
breakdown voltage (between contacts)
UL/C-UL and VDE approved
3. Long insulation distance
RoHS compliant
Creepage distance between contact and
coil terminal: Min. 9.5 mm .354 inch
TYPICAL APPLICATIONS
Protective construction: Flux-resistant
Clearance distance between contact and
1. Photovoltaic power generation
type
coil terminal: Min. 6.5 mm .256 inch
systems (Solar inverter)
Surge breakdown voltage: 6 kV
2. Uninterruptible Power Supplies
FEATURES
4. Coil holding voltage contributes to
(UPS)
1. High capacity saving energy of equipment
3. Home appliances
High capacity control possible at 22A/ The coil holding voltage can be reduced
4. Ofce equipment
33A (High capacity type) 250V AC rating up to 35%V of the nominal coil voltage
in compact size (L: 15.7 W: 30.1 (Ambient temperature: 20C 68F).
H: 23.3 mm L: .618 W: 1.185 H: .917 Power consumption at the lowest coil
inch) holding voltage: 170 mW equivalent
ORDERING INFORMATION
ALFG P F
LF-G relay
Contact arrangement
1: 1 Form A Standard type
2: 1 Form A High capacity type
Terminal shape
P: PCB type
Coil insulation class
F: UL Class F
Nominal coil voltage (DC)
09: 9V, 12: 12V, 18: 18V, 24: 24V
Contact gap
Nil: 1.5 mm .059 inch
1: 1.8 mm .071 inch
Note: Certified by UL/C-UL and VDE
TYPES
Part No.
Contact Nominal coil
Contact Gap 1.5 mm .059 inch type Contact Gap 1.8 mm .071 inch type
arrangement voltage
Standard type High capacity type Standard type High capacity type
9V DC ALFG1PF09 ALFG2PF09 ALFG1PF091 ALFG2PF091
12V DC ALFG1PF12 ALFG2PF12 ALFG1PF121 ALFG2PF121
1 Form A
18V DC ALFG1PF18 ALFG2PF18 ALFG1PF181 ALFG2PF181
24V DC ALFG1PF24 ALFG2PF24 ALFG1PF241 ALFG2PF241
Standard packing: Carton: 50 pcs.; Case: 200 pcs.
ASCTB196E 201606-T
1LF-G (ALFG)
RATING
1. Coil data
Pick-up voltage Drop-out voltage Nominal operating
Nominal coil Coil resistance Nominal operating Max. applied voltage
(at 20C 68F) (at 20C 68F) current
voltage [10%] (at 20C 68F) power (at 20C 68F)
(Initial) (Initial) [10%] (at 20C 68F)
9V DC 155mA 58
12V DC 117mA 103
70%V or less of 10%V or more of 120%V of
1,400mW
nominal voltage nominal voltage nominal voltage
18V DC 78mA 230
24V DC 59mA 410
2. Specications
Specications
Standard type High capacity type
Characteristics Item
Contact Gap 1.5 mm .059 inch type
Contact Gap 1.5 mm .059 inch type Contact Gap 1.8 mm .071 inch type
Contact Gap 1.8 mm .071 inch type
Arrangement 1 Form A
Contact Contact resistance (Initial) Max. 100 m (By voltage drop 6 V DC 1A)
Contact material AgSnO2 type
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
Rating
Max. switching current 22A (AC) 31A (AC) 33A (AC)
Nominal operating power 1,400mW
Min. switching capacity
100mA 5V DC
1
(Reference value)*
Insulation resistance (Initial) Min. 1,000M (at 500V DC) Measurement at same location as Breakdown voltage section.
Between open
2,500 Vrms for 1 min. (Detection current: 10 mA)
contacts
Breakdown
voltage (Initial)
Between contact
4,000 Vrms for 1 min. (Detection current: 10 mA)
and coil
2
Surge breakdown voltage*
Electrical 6,000 V
(Between contact and coil) (Initial)
characteristics
35 to 120%V (contact carrying 35 to 120%V (contact carrying 35 to 120%V (contact carrying
current: 22A, at 20C 68F) current: 31A, at 20C 68F) current: 33A, at 20C 68F)
3
Coil holding voltage*
45 to 80%V (contact carrying 45 to 80%V (contact carrying 45 to 80%V (contact carrying
current: 22A, at 85C 185F) current: 31A, at 85C 185F) current: 33A, at 85C 185F)
Operate time (at 20C 68F) (Initial) Max. 20 ms (at nominal coil voltage excluding contact bounce time.)
Release time (at 20C 68F) (Initial) Max. 10 ms (at nominal coil voltage excluding contact bounce time, without diode)
2
Functional Min. 100 m/s (Half-wave pulse of sine wave: 11 ms; detection time: 10s.)
Shock
resistance 2
Destructive Min. 1,000 m/s (Half-wave pulse of sine wave: 6 ms.)
Mechanical
characteristics
Functional 10 to 55 Hz at double amplitude of 1.5 mm (Detection time: 10s.)
Vibration
resistance
Destructive 10 to 55 Hz at double amplitude of 1.5 mm
6
Contact Gap 1.5 mm .059 inch type: Min. 10 (at 180 times/min.)
Mechanical
5
Contact Gap 1.8 mm .071 inch type: Min. 510 (at 180 times/min.)
4
22A 250V AC, Min. 310
Resistive load
(at 20 times/min.)
Destructive: 22A 250V AC Destructive: 31A 250V AC Destructive: 33A 250V AC
Expected life
(cos = 0.8), (cos = 0.8), (cos = 0.8),
Electrical
4 4 4
Min. 310 (on:off = 0.1s:10s) Min. 310 (on:off = 0.1s:10s) Min. 310 (on:off = 0.1s:10s)
Inductive load
Over load: 35A 250V AC Over load: 47A 250V AC Over load: 50A 250V AC
(cos = 0.8), (cos = 0.8), (cos = 0.8),
Min. 50 (on:off = 0.1s:10s) Min. 50 (on:off = 0.1s:10s) Min. 50 (on:off = 0.1s:10s)
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
Conditions for operation, transport
Conditions of nominal coil voltage is applied.)
4
and storage*
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
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. 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.
ASCTB196E 201606-T
2