VDE
LA
2 Form A slim power relay
LA RELAYS
tween contact and coil: Min. 6 mm
.236
inch(In
compliance with IEC65)
• Surge withstand voltage between con-
tact and coil: 10,000 V or more.
4. High noise immunity realized by the
card separation structure between
contact and coil
5. Conforms to the various safety stan-
dards
• UL/CSA, VDE, TÜV, SEMKO, SEV ap-
proved
FEATURES
24.0
.945
12.0
.472
25.0
.984
mm
inch
1. 2 Form A slim type
24(L)
×
12(W)
×
25(H) mm
.945(L)
×
.472(W)
×
.984(H) inch
2. 3A type and 5A TV type
3A type: Contact reliability and break per-
formance best suited for protecting and
switching speakers.
5A TV type: Tough against inrush current
and optimal for turning on and off the pow-
er supply. Rated TV-4 (UL/CSA).
3. High insulation resistance
• Creepage distance and clearances be-
SPECIFICATIONS
Contact
Type
Arrangement
Initial contact resistance, max.
(By voltage drop 6 V DC 1 A)
Contact material
Nominal switching
capacity
Max. switching power
Max. switching voltage
Max. switching current
Mechanical (at 180 cpm)
Electrical (at 20 cpm)
(at rated load)
3A rated
5A TV rated
2 Form A
Max. 50 m
Ω
Gold-clad
silver alloy
3 A 125 V AC
625 VA
Max. 100 m
Ω
Silver alloy
5 A 277 V AC
1,385 V A
Characteristics
Type
Max. operating speed
Initial insulation resistance*
1
Between contact sets
Initial *
2
Between open contacts
breakdown
Between contact and
voltage
coil
Surge voltage between contact and
coil*
3
Operate time*
4
(at nominal voltage)
Release time (with diode)*
4
(at nominal voltage)
5A TV rated
20 cpm
Min. 1,000 M
Ω
(at 500 V DC)
1,000 Vrms for 1 min.
1,000 Vrms for 1 min.
4,000 Vrms for 1 min.
Min. 10,000 V
Max. 15ms (at 20
°
C
68
°
F)
Max. 15ms (at 20
°
C
68
°
F)
Max. 45
°
C
with nominal
coil voltage
and at 3 A
contact car-
rying current
Max. 45
°
C
with nominal
coil voltage
and at 5 A
contact car-
rying current
3A rated
Rating
(resistive
load)
Expected
life (min.
operations)
125 V AC
277 V AC
5 A (AC)
10
6
5
×
10
4
(ON: OFF=1.5s: 1.5s)
Coil
Nominal operating power
Remarks
* Specifications will vary with foreign standards certification ratings.
*
1
Measurement at same location as "Initial breakdown voltage" section.
*
2
Detection current: 10mA
*
3
Wave is standard shock voltage of
±
1.2
×
50ms according to JEC-212-1981
*
4
Excluding contact bounce time.
*
5
Half-wave pulse of sine wave: 11 ms; detection time: 10
µ
s
*
6
Half-wave pulse of sine wave: 6 ms
*
7
Detection time: 10
µ
s
*
8
Refer to 5. Conditions for operation, transport and storage mentioned in
AMBIENT ENVIRONMENT (Page 61).
Temperature rise (at 70
°
C)
530 mW
Shock resistance
Functional*
5
Destructive*
6
Functional*
7
Vibration resistance
Destructive
Conditions for operation,
transport and storage*
8
(Not freezing and con-
densing at low tempera-
ture)
Unit weight
Ambient
temp.
Humidity
Air
pressure
Min. 200 m/s
2
{approx. 20 G}
Min. 1,000 m/s
2
{approx. 100 G}
10 to 55Hz
at double amplitude of 1.5mm
10 to 55Hz
at double amplitude of 1.5mm
–40
°
C to +70
°
C
–40
°
F to +158
°
F
5 to 85% R.H.
86 to 106 kPa
Approx. 13 g
.46 oz
ORDERING INFORMATION
Ex.
A
LA
2
P
F
12
Product name Contact arrangement Contact capacity Protective construction Coil voltage(V DC)
LA
2: 2 Form A
Nil: 3A
P: 5A TV-4
F: Flux-resistant type
12, 24
UL/CSA, VDE, TÜV, SEMKO, TV-4 approved type is standard.
Notes: 1. Standard packing Carton: 100 pcs. Case: 500 pcs.
2. 4.5V, 5V, 9V and 18V DC types are also available. Please consult us for details.
275
LA
TYPES AND COIL DATA (at 20
°
C
68
°
F)
Part No.
3 A type
ALA2F12
ALA2F24
5A TV type
ALA2PF12
ALA2PF24
Nominal
voltage,
V DC
12
24
Pick-up
voltage,
V DC (max.)
(Initial) 9
(Initial) 18
Drop-out
voltage,
V DC (min.)
(Initial) 0.6
(Initial) 1.2
Coil
resistance,
Ω
(
±
10%)
272
1,087
Nominal
operating
current,
mA (
±
10%)
44.2
22.1
Nominal
operating
power,
mW
530
530
Maximum
allowable
voltage,
V DC
15.6
31.2
mm
inch
PC board pattern (Bottom view)
2-0.9 dia
2-.035 dia
15.0
.591
5.0
.197
4-1.3 dia
4-.051 dia
DIMENSIONS
Max. 25.0
.984
0.5
.020
4
.157
0.4
.016
1.0
.039
7.5
.295
1.0
.039
7.5
.295
Tolerance :
±
0.1
±
.004
Schematic (Bottom view)
0.5
0.3
.020 .012
1.65
.065
Max. 24
5.0
.945
.197
15.0
.591
Max. 12
.472
Dimension:
Max. 1mm
.039 inch:
1 to 3mm
.039 to .118 inch:
Min. 3mm
.118 inch:
General tolerance
±
0.1
±
.004
±
0.2
±
.008
±
0.3
±
.012
REFERENCE DATA
1. Max. switching power (AC resistive load)
2-(1). Life curve (250 V AC resistive load)
2-(2). Life curve (125 V AC resistive load)
10
100
100
Contact current, A
ALA2PF12
Life,
×10
4
Life,
×10
4
5
250V AC resistive load
125V AC resistive load
3
ALA2F12
10
10
0
100
300
Contact voltage, V
1
0
1
2
3
4
5
1
0
1
2
3
Contact current, A
Contact current, A
3-(1). Coil temperature rise
Sample: ALA2F12, 6 pcs.
Measured portion: coil inside
Contact current: 0 A, 3A
50
45
Temperature rise,
°C
40
35
30
25
20
15
10
5
0
0
80
100
120
20°C 3A
20°C 0A
3-(2). Coil temperature rise
Sample: ALA2PF12, 6 pcs.
Measured portion: coil inside
Contact current: 0 A, 5A
50
45
Temperature rise,
°C
40
35
30
25
20
15
10
5
0
0
80
100
120
Coil applied voltage, %V
20°C 5A
20°C 0A
70°C 5A
70°C 0A
4. Ambient temperature characteristics and coil
applied voltage
Contact current: ALA2F=3A
ALA2PF=5A
200
Coil applied voltage, %V
Allowable ambient temperatures
against % coil voltages
(max. inside the coil
temperature set as
115°C
239°F)
70°C 3A
70°C 0A
150
100
50
0
0
20
Coil applied voltage, %V
40
60
Ambient temperature,
°C
80
276
LA
5-(1). Electrical life test
(3 A 125 V AC, resistive load)
Sample: ALA2F12, 6 pcs.
Operation frequency: 20 times/min.
(ON/OFF = 1.5s: 1.5s)
Ambient temperature: 20
°
C
68
°
F
Change of pick-up and drop-out voltage
Pick-up and drop-out voltage, %V
100
Change of contact resistance
50
Contact resistance, mΩ
80
Pick-up voltage
60
Max.
x
Min.
40
Circuit:
Contact
welding
detection
and Mis-
contacting
detection
circuit
30
Max.
x
Min.
40
Drop-out voltage
20
20
12V DC
125V AC
NO
NO
COM
COM
Max.
x
Min.
5
10
G
0
0
2.5
No. of operations,
×10
4
0
0
2.5
No. of operations,
×10
4
5
5-(2). Electrical life test
(5 A 250 V AC, resistive load)
Sample: ALA2PF12, 6 pcs.
Operation frequency: 20 times/min.
(ON/OFF = 1.5s: 1.5s)
Ambient temperature: 20
°
C
68
°
F
Change of pick-up and drop-out voltage
100
Pick-up and drop-out voltage, %V
Change of contact resistance
50
Contact resistance, mΩ
80
Pick-up voltage
60
Max.
x
Min.
Drop-out voltage
20
Max.
x
Min.
2.5
No. of operations,
×10
4
5
40
Max.
30
x
Min.
20
Circuit:
Contact
welding
detection
and Mis-
contacting
detection
circuit
40
12V DC
250V AC
NO
NO
COM
COM
10
G
0
0
0
0
2.5
No. of operations,
×10
4
5
5-(3). Electrical life test
(UL lamp load test TV-4)
Tested sample: ALA2PF12, 6 pcs.
• Overload test
Load: 6.0 A 120 V AC (60 Hz),
Inrush: 91 A
Operation frequency: 10 times/min
(ON: OFF = 1 s: 5 s)
No. of operations: 50 ope.
• Endurance test
Load: 4A 120 V AC (60 Hz),
Inrush: 65 A
Operation frequency: 10 times/min
(ON: OFF = 1 s: 5 s)
No. of operations: 25,000 ope.
Change of pick-up and drop-out voltage
Pick-up and drop-out voltage, %V
100
Change of contact resistance
50
Contact resistance, mΩ
80
Pick-up voltage
60
Max.
x
Min.
40
30
40
Drop-out voltage
20
Max.
x
Min.
20
Max.
10
x
Min.
0
0
No. of operations,
×10
4
0
0
No. of operations,
×10
4
2.5
2.5
For Cautions for Use, see Relay Technical Information (Page 48 to 76).
9/1/2000
All Rights Reserved, © Copyright Matsushita Electric Works,
277
Ltd.
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