1 HORSE-POWER
COMPACT POWER RELAYS
JA-RELAYS
30.1
1.185
34.7
1.366
30.1
1.185
34.7
1.366
FEATURES
28.5
1.122
28.5
1.122
TMP type
TM type
mm
inch
• High switching capacity — 55 A inrush, 15 A steady state
inductive load (1 Form A)
• Particularly suitable for air conditioners, dish washers, mi-
crowave ovens, ranges, central cleaning systems, copiers,
facsimiles, etc.
• Two types available
"TM" type for direct chassis mounting
"TMP" type for PC board mounting
• TV-rated types available
• TÜV also approved
SPECIFICATIONS
Contact
Arrangement
Initial contact resistance, max.
(By voltage drop 6 V DC 1 A)
Contact material
Maximum switching power
Rating
(resistive Maximum switching voltage
load)
Max. switching current
Mechanical (at 180 cpm.)
1 Form A (Inrush 55 A,
Expected
Steady 15 A 250 VAC
life (min.
cos
ϕ
= 0.7)
Electrical
operations)
(at 20 cpm.)
1 Form B, 1 Form C
(15 A 250 VAC,
cos
ϕ
= 1)
1 Form, A, 1 Form B, 1 Form C
Characteristics
30 m
Ω
Silver alloy
3,750 VA
250 V AC
15A
5
×
10
10
5
6
Maximum operating speed
Initial insulation resistance*
1
Between open contacts
Initial break-
2
down voltage* Between contacts and coil
Initial surge voltage between contacts
and coil*
3
Operate time*
4
(at 20
°
C) (at nominal voltage)
Release time (without diode)*
4
(at 20
°
C) (at nominal voltage)
Temperature rise (at 50
°
C)
(resistive)
Shock resis-
tance
Vibration
resistance
Functional*
6
Destructive*
7
Functional*
8
Destructive
20 cpm.
Min. 100 M
Ω
at 500 V DC
1,500 Vrms
2,000 Vrms
Min. 5,000 V
Approx. 10 ms*
5
Approx. 2 ms*
5
Max. 70
°
C
98 m/s
2
{10 G}
980 m/s
2
{100 G}
88.2 m/s
2
{9 G}, 10 to 55 Hz
at double amplitude of 1.5 mm
88.2 m/s
2
{9 G}, 10 to 55 Hz
at double amplitude of 1.5 mm
–10
°
C to +50
°
C
+14
°
F to +122
°
F
5 to 85%R.H.
Approx. 44 g
1.55 oz
5
×
10
5
Coil
Nominal operating
power
Minimum 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
×
50
µ
s according to JEC-212-1981
*
4
Excluding contact bounce time
*
5
For the AC coil types, the operate/release time will differ depending on the phase.
DC type
AC type
DC type
AC type
1.2 W
1.4 VA (50 Hz)/1.3 VA (60 Hz)
0.77 W
0.90 VA (50 Hz)/0.84 VA (60 Hz)
Ambient
Conditions for operation,
9
transport and storage*
temp.
(Not freezing and condens-
Humidity
ing at low temperature)
Unit weight
*
6
Half-wave pulse of sine wave: 11ms; detection time: 10
µ
s
*
7
Half-wave pulse of sine wave: 6ms
*
8
Detection time: 10
µ
s
*
9
Refer to 5. Conditions for operation, transport and storage mentioned in
AMBIENT ENVIRONMENT (Page 24).
TYPICAL APPLICATIONS
Air conditioners, microwave ovens, load
management equipment, copiers, process
control equipment
ORDERING INFORMATION
Ex. JA
1a
TM
DC12V
P
Contact
arrangement
1c: 1 Form C
1a: 1 Form A
1b: 1 Form B
Mounting classification
Coil voltage
Classification
Nil: Standard type
P: Up-graded contact
rating type
(See next page)
TM: Solder Terminal
TMP: Solder Teminal
and PCB Teminal
DC 12, 24 V
AC 12, 24, 115 V
(Notes) 1. For UL/CSA recognized types, add suffix UL/CSA.
(Notes)
2. Standard packing Carton: 20 pcs.; Case: 200 pcs.
110
JA
COIL DATA
DC Type at 20
°
C
68
°
F
Nominal
voltage
12 V DC
24
Pick-up voltage
(max.)
9.6 V DC
19.2
Drop-out* voltage
(min.)
1.2 (0.6*) V DC
2.4 (1.2*)
Coil resistance,
W (
±
10%)
120
480
Nominal operating
current, mA (
±
10%)
100
50
Nominal operating
power
1.2 W
1.2
Maximum allowable
voltage (at 50
°
C)
13.2 V DC
26.4
AC Type at 20
°
C
68
°
F
Nominal
voltage
12 V AC
Pick-up voltage
(max.)
9.6 V AC
Drop-out* voltage
(min.)
3.6 V AC
Coil resistance,
W (
±
10%)
—
—
—
Nominal operating
current, mA (
±
10%)
50 Hz
117
58
12
60 Hz
108
54
11
Nominal operating
power
50 Hz
1.4 VA
1.4 VA
1.4 VA
60 Hz
1.3 VA
1.3 VA
1.3 VA
Maximum allowable
voltage (at 50
°
C)
13.2 V DC
26.4
126.5
24
19.2
7.2
115
92
34.5
* Drop-out voltage for 1 Form B type is 5% of nominal voltage.
NOTES
1. The range of coil current for AC relay is
±
15% (60
Hz). For DC relay it is
±
10% at 20
°
C
68°F.
2. The JA relay will operate in a range from 80% to
110% of the nominal coil voltage. It is however, recom-
mended that the relay be used in the range of 85% to
110% of the nominal coil voltage, with the temporary
voltage variation taken into consideration.
3. When the operating voltage of AC relays drops be-
low 80% of the nominal coil voltage. The relay will gen-
erate a considerable amount of heat which is not
recommended for maximum efficiency.
4. The coil resistance of DC types is the measured val-
ue of the coil at a temperature of 20
°
C (68
°
F).
If the
coil temperature changes by
±
1
°
C. The measured val-
ue of the coil resistance should be increased or de-
creased by 0.4%.
ADDITIONAL SERIES
1. Following up-graded contact rating types recognized by
UL are available. (For use in office appliances)
Suffix
Contact
arrangement
1 Form C
1 Form A
1 Form B
P
(Ex. JA 1a - TM - DC12V -P)
Contact
arrangement
1 Form A
2. TV-Rated Series
Suffix
UL
TV
TV-5
CSA
TV
TV-5
25 A 250 V AC, 1 HP 125, 250 V AC
25 A 250 V AC, 1 HP 125, 250 V AC
25 A 250 V AC, 1 HP 125, 250 V AC
mm
inch
DIMENSIONS
TM
4.5
.177
Schematic (Bottom view)
COM
1 Form A
COM
N.O.
50
1.969
43.5
1.713
COM
1 Form B
R
2.
25
N.C.
30.1
1.185
34.7
1.366
2
.079
37.8
6.5
.256 1.488
9.3
.366
COM
1 Form C
N.C.
N.O.
12.7
.500
FASTON 250
21.5
.846
FASTON 187
Terminals—.187" quick connect terminals for coil
and .250" for contacts
Mounting hole location
COM
43.5±0.1
1.713±.004
NC
NO
Remarks
Above dimensions are for 1 Form C type.
For 1 Form A type, NC terminal is removed
For 1 Form B type, NO terminal is removed.
General tolerance:
±
0.3
±
.012
2-4.5±0.1 DIA.
2-.177±.004 DIA.
Tolerance:
±
0.1
±
.004
111
JA
TMP
0.5±0.1
.020±.004
4.5
.177
0.5±0.1
.020±.004
mm
inch
Schematic
1 Form A
Bottom view
COM
Top view
COM
50
1.969
43.5
1.713
COM
N.O.
Bottom view
COM
Top view
COM
2.
25
25.4
1.000
30.1
1.185
0.8±0.1
.031±.004
34.7
1.366
14
.551
1.5
.059
1 Form B
3.5
.138
N.C.
2
.079
37.8
1.488
9.3
.366
Bottom view
COM
Top view
COM
R
1 Form C
N.O. N.C.
12.7
.500
FASTON 250
21.5
.846
Terminals—PC board terminals for coils and
.250" quick connect terminals forcontacts
COM
Mounting hole location
NC
NO
General tolerance:
±
0.3
±
.012
2-4.5±0.1 DIA.
2-.177±.004 DIA.
3-2±0.1 DIA.
3-.079±.004 DIA.
43.5±0.1
1.713±.004
14±0.1
.551±.004
Remarks
Above dimensions are for 1 Form C type.
For 1 Form A type, NC terminal is removed
For 1 Form B type, NO terminal is removed.
25.4±0.1
1.000±.004
Tolerance:
±
0.1
±
.004
REFERENCE DATA
1. Maximum value for switching capacity
(Common for 1a, 2b, and 1c)
20
Contact current, A
10
Temperature rise,
°C
5
Life
×10
4
DCresistive load
100
50
250 V AC resistive load
30 V DC resistive load
80
60
40
20
AC resistive load
2. Life curve (Common for 1a, 1b, and 1c)
3.-(1) Coil temperature rise (1a-AC type)
Point measured: Inside the coil
Ambient temperature: 25
°
C
77
°
F
500
100
Contact current 15A
10A
0A
1
0.5
0
30 50 100 200 400 500
Contact voltage, V
0
2
4
6
8 10 12 14 16 18 20 22
Contact current, A
0
80
90
100
110
120
Coil applied voltage, %V
3.-(2) Coil temperature rise (1a-DC type)
Point measured: Inside the coil
Ambient temperature: 25
°
C
77
°
F
100
Temperature rise,
°C
4.-(1) Operate time (1a-AC type)
4.-(2) Operate time (1a-DC type)
20
18
Operating time, ms
Contact current 15A
Operating time, ms
20
18
16
14
12
10
8
6
Min.
4
2
80
90
100
110
120
0
80
90
100 110 120
Coil applied voltage, %V
Max.
Min.
80
60
40
20
16
14
12
10
8
6
4
2
Max.
10A
0A
0
80
90
100
110
120
0
Coil applied voltage, %V
Coil applied voltage, %V
112
JA
5.-(1) Release time (1a-AC type)
20
18
Release time, ms
16
14
12
10
8
6
4
2
0
80
90
100
110
120
Min.
0
80
90
100
110
120
1
Max.
Release time, ms
4
3
2
Max.
Min.
5.-(2) Release time (1a-DC type)
5
Coil applied voltage, %V
Coil applied voltage, %V
6.-(1) Electrical life (15 A 250 V AC resistive)
1. Tested sample: JA1c-TMP-AC115V
2. Load: 15 A 250 V AC resistive load
3. Cycle rate: 20 cpm.
4. Circuit:
TEST RESULT:
1. Pick-up and drop-out voltage
80
70
60
Voltage, *%
50
40
30
20
10
0
10
30
4
No. of operations,
×10
50
Drop-out voltage
Pick-up voltage
Max.
Max.
Min.
Min.
2. Contact resistance
Contact resistance, mΩ
30
Max.
Mean
value
Min.
10
30
No. of operations,
×10
4
50
N.C. contact
10
0
30
N.C.
N.C.
250 V AC
15 A
15 A
Contact resistance, mΩ
10
0
10
N.C. contact
Mean
value
50
30
No. of operations,
×10
4
* This shows percent rate against nominal coil voltage.
3. No abnormality was observed in either insulation
resistance or breakdown voltage.
2. Contact resistance
10
6.-(2) Electrical life (15 A 250 V AC Motor sim-
ulated load)
1. Tested sample: JA1a-TM-DC12V
2. Load: 250 V AC inductive load (cosϕ = 0.7)
15 A steady and 55 A (0.3s*) inrush current
3. Cycle rate: 20 cpm.
4. Circuit:
TEST RESULT:
1. Pick-up and drop-out voltage
10
9
8
Voltage, %
7
6
5
4
3
Pick-up voltage
Max.
Mean value
Min.
Contact resistance, mΩ
N.O. contact
Max.
Mean value
Min.
5
N.O.
250 V AC
R
L
R
L
2
1
0
Drop-out voltage
Max.
Mean value
Min.
0
10
5
10
4
5
4
No. of operations,
×10
No. of operations,
×10
3. No abnormality was observed in either insulation
resistance or breakdown voltage.
For Cautions for Use, see Relay Technical Information (Page 11 to 39).
113
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