SONG CHUAN
153
SCLD/SCLB
Ordering Information
Type List
Features
ϭ5A general purpose Power Relay.
ϭDPDT & 4PDT contact configurations.
ϭAC & DC coil.
ϭEpoxy sealed type and or flux free type.
ϭOptional to be equipped with lamp, diode, flashed
contact, and flanged cover.
Enclosure style
Terminal
style
Contact
form
Designation
(provided with) Straight cover Flanged cover Sealed type
washable
4PDT SCLD-W-B-4PDT-C SCLD-W-B-4PDT-C1 SCLD-W-B-4PDT-S
DPDT
-------
SCLB-W-DPDT-C SCLB-W-DPDT-C1 SCLB-W-DPDT-S
4PDT SCLD-W-B-D-4PDT-C SCLD-W-B-D-4PDT-C1 SCLD-W-B-D-4PDT-S
DPDT
Diode
SCLB-W-D-DPDT-C SCLB-W-D-DPDT-C1 ----------
4PDT SCLD-W-B-F-4PDT-C SCLD-W-B-F-4PDT-C1 SCLD-W-B-F-4PDT-S
W
(Quick terminal)
DPDT
Au plating
contact
Au plating
contact
SCLB-W-F-DPDT-C SCLB-W-F-DPDT-C1 ----------
4PDT SCLD-W-B-L-4PDT-C SCLD-W-B-L-4PDT-C1 SCLD-W-B-L-4PDT-S
DPDT
Lamp
SCLB-W-L-DPDT-C SCLB-W-L-DPDT-C1 ----------
4PDT SCLD-P-B-4PDT-C SCLD-P-B-4PDT-S
DPDT
-------
SCLB-P-DPDT-C ----------
4PDT SCLD-P-B-D-4PDT-C SCLD-P-B-D-4PDT-S
DPDT
Diode
SCLB-P-D-DPDT-C ----------
4PDT SCLD-P-B-F-4PDT-C SCLD-P-B-F-4PDT-S
DPDT SCLB-P-F-DPDT-C ----------
P
(PCB terminal)
4PDT SCLD-P-B-L-4PDT-C SCLD-P-B-L-4PDT-S
DPDT
Lamp
SCLB-P-L-DPDT-C ----------
4PDT SCLD-P-B-M-4PDT-C ----------
DPDT
Manual
SCLB-P-M-DPDT-C ----------
----------
----------
----------
----------
----------
----------
----------
----------
----------
----------
ϭComplies with RoHS-Directive 2011/65/EU.
1. SCL -- Basic series designation
2. B -- Double pole
D -- Four pole
3. P -- PCB terminal
W -- Quick terminal
4. Blank -- Without any special features
B -- Provided with contact barrier
SCL -----
12 3 4 5 6 7
B P DPDT
8
SONG CHUAN
154
SCLD/SCLB
Max. switching current
5A
Max. switching voltage
250VAC
Max. switching capacity
1250VA
Contact Rating
Coil Rating (DC)
Coil Rating (AC)
F -- Ag contact with Au plating - 3A rating
L -- Provided with pilot light
M -- Provided with manual operator
5. Blank -- No special features
D -- Diode across coil
6. DPDT
4PDT
-- Double pole double throw
-- Four pole double throw
7. Blank -- Open type
C -- Straight cover
C1 -- Flanged cover
V -- Sealed type
S -- Sealed type washable
5A 28VDC General Use 5A 250VAC
Rated
voltage
(V)
Rated current
±10 % at 23°C
(mA)
Coil resistance
±10 % at 23°C
(Ω)
Max. continuous
voltage
at 70°C
Pick up
voltage(Max.)
at 23°C
Drop out
voltage(Min.)
at 23°C
Power consumption
at rated
voltage
6 150 40
12 75 160
15 60 250 110 % of 75 % of 10 % of
24 37 650 rated rated rated approx. 0.9W
48 19 2,600 voltage voltage voltage
110 10 11,000
120 11 11,000
Rated
voltage
(V)
Coil resistance
±10 % at 23°C
(Ω)
Max. continuous
voltage
at 70°C
Pick up
voltage(Max.)
at 23°C
Drop out
voltage(Min.)
at 23°C
Power consumption
at rated
voltage
12 40
24 160
100 3,400
110 3,400 110 % of 85 % of 30 % of
115 3,400 rated rated rated approx. 1.2VA
120 3,400 voltage voltage voltage
220 13,600
230 13,600
240 13,600
8. -- Coil voltage (please refer to the
coil rating data for the availability)
Resistive load
SONG CHUAN
155
SCLD/SCLB
Specification
Contact material AgNi alloy
Contact resistance (1)
Operate time (1) 25 ms Max.
Release time (1) 25 ms Max.
Operating extremes 10焍55Hz , amplitude 1.0 mm
Vibration resistance
Damage limits 10焍55Hz , amplitude 1.0 mm
Operating extremes 20G
Shock resistance
Damage limits 100G
10,000,000 ops.
Mechanical (frequency 18,000 ops./hr)
Life expectancy
100,000 ops.
Electrical (frequency 1,800 ops./hr)
Operating ambient temperature -25焍+70°C (no freezing)
Weight Approx. 35 g (LD)ˣ32 g (LB)
50mΩ Max. (at 1A/6VDC by 4-wire resistance measurement)
Tolerance range
Humidity, %RH
(Avoid
freezing when
used at
temperatures
lower than
0°C)
(Avoid
condensation
when used at
temperatures
higher than 0°C )
Temperature, °C
Note 烉(1) Initial value. Operate and release time excluding contact bounce.
(2) Unless otherwise specified, all tests are under room temperature and humidity.
(3) Consider the heat of PCB is necessary, please check the actual condition of PCB.
(4) Do not use the relay exceeding the coil rating, contact rating and life expectancy, or this may cause
the risk of overheating.
(5) To assure optimum performance, avoid the relay from dropping, hitting, or other unnecessary shocks.
(6) Do not switch the contacts without any load as the contact resistance may become increased rapidly.
(7) Flux tight version is recommended. If there is cleaning process and sealed type is selected,
the vent-hole should be removed after the process.
(8) Use suitable harnesses and bus bars according to the current as below︰
5A type︰Min. 2.0 mm
(9) Usage, transport and storage conditions
焍+70°C
within the range indicated in the graph below.
(10) Please contact Song Chuan for the detailed information.
2
SONG CHUAN
156
SCLD/SCLB
Safety Approval
Safety Approval Rating
UL / CUL CSA UL & CSA (-F) TUV
5A 250VAC 5A 250VAC 3A 250VAC 5A 250VAC
5A 28VDC 5A 28VDC 3A 30VDC 5A 30VDC
1/8HP 3.8FLA,120VAC
Certified UL / CUL CSA TUV
File No. E88991 1474292 R09452080
Insulation Data
Insulation of IEC 61810-1
Clearance / creepage distances Between coil to contact : Basic,!ʁ 1.5mm / ʁ 2.5mm
Between open contact : Functional
Rated insulation voltage 250V
Rated impulse withstand voltage 2500V
Pollution degree 2
Rated voltage 230 / 400V
Overvoltage category II
Note；(1) Initial value.
Insulation resistance (1) 100 MΩ Min. (DC 500V)
Between open contact : AC 500V , 50/60Hz 1 min.
Dielectric strength (1) Between contact and coil : AC 1500V , 50/60Hz 1 min.
Between contact circuits : AC 1500V , 50/60Hz 1 min.
Outline Dimensions
˓LB-W C1 (0.118)
3
21.5
(0.846)
1.2
(0.047)
2.6
(0.102)
0.5
(0.020)
(0.079)
2
(1.634)
41.5
27.5
(1.083)
(0.217)
5.5
(1.417)
36
(0.039)
1
(0.520)
13.2
44
(1.732)
4.1
(0.161)
4
(0.157)
(0.138)
3.5
38
(1.496)
6.35
(0.250)
6.35
(0.250)
SONG CHUAN
157
SCLD/SCLB
˓LB-W C
˓LB-W S
(0.118)
3
1.2
(0.047)
2.6
(0.102)
21.5
(0.846)
27.5
(1.083)
0.5
(0.020)
(1.634)
41.5
(0.217)
5.5
(1.417)
36
(0.039)
1
4.1
(0.161)
4
(0.157)
(0.520)
13.2
6.35
(0.250)
6.35
(0.250)
(0.118)
3
1.2
(0.047)
2.6
(0.102)
21.5
(0.846)
27.5
(1.083)
0.5
(0.020)
(1.654)
42
(0.217)
5.5
(1.437)
36.5
4.1
(0.161)
4
(0.157)
(0.520)
13.2
6.35
(0.250)
6.35
(0.250)
˓LB-P C
4.1
(0.161)
4
(0.520)
13.2
6.35
(0.250)
6.35
(0.250)
(0.157)
0.5
(0.020)
27.5
(1.083)
(1.634)
41.5
(0.039)
1
1.2
(0.047)
2.6
(0.102)
21.5
(0.846)
(0.177)
4.5
(1.496)
38
SONG CHUAN
158
SCLD/SCLB
˓LD-W C1 3
(0.118)
1.2
(0.047)
2.6
(0.102)
21.5
(0.846)
0.5
(0.020)
(0.079)
2
(1.634)
41.5
27.5
(1.083)
(0.217)
5.5
(1.417)
36
(0.039)
1
4.1
(0.161)
4
(0.157)
(0.138)
3.5
44
(1.732)
38
(1.496)
6.35
(0.250)
6.35
(0.250)
(0.173)
4.4
(0.173)
4.4
(0.173)
4.4
˓LD-W C
˓LD-W S
4.1
(0.161)
4
(0.157)
(0.173)
4.4
(0.173)
4.4
(0.173)
4.4
6.35
(0.250)
6.35
(0.250)
3
(0.118)
1.2
(0.047)
2.6
(0.102)
21.5
(0.846)
0.5
(0.020)
27.5
(1.083)
(1.634)
41.5
(0.217)
5.5
(1.417)
36
(0.039)
1
3
4.1
(0.161)
4
(0.157)
(0.173)
4.4
(0.173)
4.4
(0.173)
4.4
6.35
(0.250)
6.35
(0.250)
(0.118)
1.2
(0.047)
2.6
(0.102)
21.5
(0.846)
0.5
(0.020)
27.5
(1.083)
(1.654)
42
(0.217)
5.5
(1.437)
36.5
SONG CHUAN
159
SCLD/SCLB
˓LD-P C
4.1
(0.161)
4
(0.157)
(0.173)
4.4
(0.173)
4.4
(0.173)
4.4
6.35
(0.250)
6.35
(0.250)
1.2
(0.047)
2.6
(0.102)
21.5
(0.846)
(0.177)
4.5
(1.496)
38
0.5
(0.020)
27.5
(1.083)
(1.634)
41.5
(0.039)
1
Wiring Diagram
BOTTOM VIEW
˓LD-W M
4PDT
DPDT
4.1
(0.161)
4
(0.157)
(0.173)
4.4
(0.173)
4.4
(0.173)
4.4
6.35
(0.250)
6.35
(0.250)
3
(0.118)
1.2
(0.047)
2.6
(0.102)
21.5
(0.846)
0.5
(0.020)
27.5
(1.083)
(1.634)
41.5
(1.417)
36
(0.039)
1
1
5
9
13
4
8
12
14
2
6
10
1
5
9
13
3 4
7
11
8
12
14
(0.217)
5.5
MORE THAN: 20(0.787) ±1(0.039)
20(0.787) ±0.5(0.020)
5(0.197) ±0.3(0.012)
LESS THAN: 1(0.039) ±0.1(0.004)
TOLERANCE:
SONG CHUAN
160 ————————
SCLD/SCLB
PC Board Layout
BOTTOM VIEW
4PDTDPDT
(0.520)
13.2
4.1
(0.161)
4
(0.157)
12.7
(0.500)
6.35
(0.250)
(0.157)
4
(0.063)
1.6-14
(0.173)
4.4
(0.520)
13.2
4.1
(0.161)
4
(0.157)
12.7
(0.500)
6.35
(0.250)
(0.157)
4
(0.063)
1.6-8
Designation(Provided with)
BOTTOM VIEW
Lamp
Diode
(100~240VAC)
13 14
(6~48VAC)
13 14
(6~48VDC)
(-) (+)
13 14
(-) (+)
13 14
Engineering Data
% of Nominal Coil Voltage (at 70ʨ)
120
Temperature rise (ʨ)
7060
50
40
30
20
80 90 100 110
5A
Coil temperature rise (SCLB)
60
% of Nominal Coil Voltage (at 23ʨ)
Temperature rise (ʨ)
60
70
40
50
30
5A
Coil temperature rise (SCLB)
110100908060 70 120
10
20
Life expectancy
AC/DC resistive load/Switching current(A)
10
01
6
Number of operations
5
10
10 7
234 56
250VAC/28VDC
10 4
˓DC coil
% of Nominal coil voltage (at 23ʨ)
1
2
avg
min
max
Operate time/Release time (SCLB/SCLD)
0
12011090 100
Time (ms)
70 80
min
avg
max
Operate time
Release time
15
14
13
12
11
8
6
9
7
5
3
4
10
