SFS
ORDERING INFORMATION
TYPES
Standard packing: Carton: 50 pcs.; Case: 200 pcs.
* For sockets and terminal sockets.
Slim type safety relays SF RELAYS
Slim type
Contact arrangement Nominal coil voltage Without LED indication With LED indication
Part No. Part No.
4-poles
2 Form A 2 Form B 12 V DC SFS2-DC12V SFS2-L-DC12V
24 V DC SFS2-DC24V SFS2-L-DC24V
48 V DC SFS2-DC48V SFS2-L-DC48V
3 Form A 1 Form B 12 V DC SFS3-DC12V SFS3-L-DC12V
24 V DC SFS3-DC24V SFS3-L-DC24V
48 V DC SFS3-DC48V SFS3-L-DC48V
6-poles
4 Form A 2 Form B 12 V DC SFS4-DC12V SFS4-L-DC12V
24 V DC SFS4-DC24V SFS4-L-DC24V
48 V DC SFS4-DC48V SFS4-L-DC48V
5 Form A 1 Form B 12 V DC SFS5-DC12V SFS5-L-DC12V
24 V DC SFS5-DC24V SFS5-L-DC24V
48 V DC SFS5-DC48V SFS5-L-DC48V
3 Form A 3 Form B 12 V DC SFS6-DC12V SFS6-L-DC12V
24 V DC SFS6-DC24V SFS6-L-DC24V
48 V DC SFS6-DC48V SFS6-L-DC48V
FEATURES
1. Forcibly guided contact structure
(EN50205 ClassA TÜV recognized)
2. Slim profile (mm inch)
Compact size with slim profile relay
reduces substrate size.
[4-poles type] 40 (L)×13 (W)×24 (H)
1.575 (L)×.512 (W)×.945 (H)
[6-poles type] 50 (L)×13 (W)×24 (H)
1.969 (L)×.512 (W)×.945 (H)
3. Built-in LED indication type
available
Built-in LED eliminates need for design
and mounting of separate LED circuit.
This cuts costs and saves labor.
4. Fast response time is achieved
(8 ms or less).
Circuit is quickly opened to ensure safety.
5. Sockets and terminal sockets are
available.
TYPICAL APPLICATIONS
1. Machine tools
2. Robots
3. Safety PLCs
4. Circuits with stringent safety
standard requirements such as those
in motor vehicle production
equipment.
S: Slim type
SF S
Operation indication
Nil:
L: Without LED indication
With LED indication
Contact arrangement
2: 2 Form A 2 Form B
3: 3 Form A 1 Form B
4: 4 Form A 2 Form B
5: 5 Form A 1 Form B
6: 3 Form A 3 Form B
Nominal coil voltage
DC 12, 24, 48V
Note: Please consult us about other coil voltages.
ASCTB119E 201201-T
Panasonic Corporation Automation Controls Business Unit industrial.panasonic.com/ac/e
RoHS compliant
SFS
RATING
1. Coil data
Note: The nominal operating current will increase by approximately 2mA due to the LED on the LED indication type.
2. Specifications (relay)
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. Response time is the time after the coil voltage turns off until the time when “a” contact turns off.
*3. 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.
Contact arrangement Nominal coil
voltage Pick-up voltage
(at 20°C 68°F)Drop-out voltage
(at 20°C 68°F)
Nominal
operating current
[±10%]
(at 20°C 68°F)
Coil resistance
[±10%]
(at 20°C 68°F)
Nominal
operating power
(at 20°C 68°F)
Max. applied
voltage
(at 20°C 68°F)
4-poles
2 Form A 2 Form B 12V DC
75%V or less of
nominal voltage
(Initial)
10%V or more of
nominal voltage
(Initial)
30mA 400Ω
Approx. 360mW
110%V of
nominal voltage
24V DC 15mA 1,600Ω
48V DC 7.5mA 6,400Ω
3 Form A 1 Form B 12V DC 30mA 400Ω
24V DC 15mA 1,600Ω
48V DC 7.5mA 6,400Ω
6-poles
4 Form A 2 Form B 12V DC 41.7mA 288Ω
Approx. 500mW
24V DC 20.8mA 1,152Ω
48V DC 10.4mA 4,608Ω
5 Form A 1 Form B 12V DC 41.7mA 288Ω
24V DC 20.8mA 1,152Ω
48V DC 10.4mA 4,608Ω
3 Form A 3 Form B 12V DC 41.7mA 288Ω
24V DC 20.8mA 1,152Ω
48V DC 10.4mA 4,608Ω
Characteristics Item Specifications
4-pole 6-pole
Contact Contact arrangement 2 Form A 2 Form B 3 Form A 1 Form B 4 Form A 2 Form B 5 Form A 1 Form B 3 Form A 3 Form B
Contact resistance (Initial) Max. 100 mΩ (By voltage drop 6 V DC 1A)
Contact material Au flashed AgSnO2 type
Rating
Nominal switching capacity (resistive load) 6A 250V AC, 6A 30V DC
Max. switching power (resistive load) 1,500VA, 180W
Max. switching voltage 250V AC, 125V DC
Max. switching current 6 A (Reduce by 0.1 A/°C for temperatures 70 to 85°C 158 to 185°F)
Min. switching capacity (Reference value)*11mA 5V DC
Nominal operating power 360mW 500mW
Electrical
characteristics
Insulation resistance (Initial) Min. 1,000MΩ (at 500V DC) Measurement at same location as “Breakdown voltage” section.
Breakdown
voltage
(Initial)
Between open contacts 1,500 Vrms for 1 min. (Detection current: 10mA)
Between contact sets
2,500 Vr ms for 1 min.
(Detection current: 10mA);
7-8/9-10 between open contacts
2,500 Vr ms for 1 min. (Detection current: 10mA);
7-8/11-12 between open contacts
9-10/13-14 between open contacts
11-12/13-14 between open contacts
4,000 Vr ms for 1 min.
(Detection current: 10mA);
3-4/5-6 between open contacts
3-4/7-8 between open contacts
5-6/9-10 between open contacts
4,000 Vr ms for 1 min. (Detection current: 10mA);
3-4/5-6 between open contacts
3-4/7-8 between open contacts
5-6/9-10 between open contacts
7-8/9-10 between open contacts
Between contact and coil 4,000 Vrms for 1min (Detection current: 10mA)
Operate time (at 20°C 68°F) Max. 20ms (Nominal coil voltage applied to the coil, excluding contact bounce time)
Response time (at 20°C 68°F)*2Max. 8ms (Nominal coil voltage applied to the coil, excluding contact bounce time) (without diode)
Release time (at 20°C 68°F) Max. 20ms (Nominal coil voltage applied to the coil, excluding contact bounce time) (without diode)
Mechanical
characteristics
Shock
resistance Functional Min. 200 m/s2 (Half-wave pulse of sine wave: 11 ms; detection time: 10µs)
Destructive Min. 1,000 m/s2 (Half-wave pulse of sine wave: 6 ms)
Vibration
resistance Functional 10 to 55 Hz at double amplitude of 1.5 mm (Detection time: 10µs)
Destructive 10 to 55 Hz at double amplitude of 1.5 mm
Expected life
Mechanical Min. 107 (at 180 times/min.)
Electrical
250 V AC 6 A resistive load: Min. 105 (at 20 times/min.)
30 V DC 6 A resistive load: Min. 105 (at 20 times/min.)
250 V AC 1 A resistive load: Min. 5×105 (at 30 times/min.)
30 V DC 1 A resistive load: Min. 5×105 (at 30 times/min.)
[AC 15] 240 V AC 2 A inductive load: Min. 105 (at 20 times/min., cosϕ = 0.3)
[DC 13] 24 V DC 1 A inductive load: Min. 105 (at 20 times/min., L/R = 48 ms)
Conditions Conditions for operation, transport and
storage*3Ambient temperature: –40°C to +85°C –40°F to +185°F
Humidity: 5 to 85% R.H. (Not freezing and condensing at low temperature)
Max. Operating speed 20 times/min. (at max. rating)
Unit weight Approx. 20 g .71 oz Approx. 23 g .81 oz
ASCTB119E 201201-T Panasonic Corporation Automation Controls Business Unit industrial.panasonic.com/ac/e
SFS
REFERENCE DATA
Other contact gaps when contacts are welded
1. Operate/response/release time
Tested sample: SFS4-DC24V (4 Form A/2 Form B),
20pcs. (a contacts: 80, b contacts: 40)
2. Coil temperature rise
Tested sample: SFS4-DC24V (4 Form A/2 Form B),
3pcs.
Measured portion: Inside the coil
Ambient temperature: Room temperature
(27°C 80.6°F), 70°C 158°F, 85°C 185°F
3. Malfunctional shock
Tested sample: SFS4-DC24V (4 Form A/2 Form B),
3pcs.
No. of contacts
1023456789
10 11 12 13 14 15
0
30
20
10
40
50
Time, ms
Release time
Operate time
Response time
90 100 120110 130
50
40
30
20
10
0
0A Room temperature
6A Room temperature
0A 70°C
6A 70°C
0A 85°C
4.5A 85°C
Coil applied voltage, %V
Temperature rise, °C
Y'
Y
XZ
Z' X'
Y
Y'
Z' ZXX'
Deenergized condition
Energized condition
200m/s2
200m/s2
200m/s2
200m/s2
200m/s2
200m/s2
4. Max, switching capacity
10 20 30 50 70 100 200300 500 1000
125 250
10
1
2
3
4
5
6
7
8
0.1
0.2
0.3
0.5
0.7
Contact current, A
Contact voltage, V
AC resistive load
DC resistive load
Sample: SFS4-DC24V (4 Form A/2 Form B)
The table below shows the state of the other contacts.
In case of form “NO” contact weld the coil applied voltage is 0 V.
In case of form “NC” contact weld the coil applied voltage is nominal.
>0.5: contact gap is kept at min. 0.5 mm .020inch
Empty cells: either ON or OFF
Note: Contact gaps are shown at the initial state.
If the contact transfer is caused by load switching, it is necessary to check the actual loading.
State of other contacts
3-4 (NC) 5-6 (NC) 7-8 (NO) 9-10 (NO) 11-12 (NO) 13-14 (NO)
Welded contact No.
3-4 (NC) >0.5 >0.5 >0.5 >0.5
5-6 (NC) >0.5 >0.5 >0.5 >0.5
7-8 (NO) >0.5 >0.5
9-10 (NO) >0.5 >0.5
11-12 (NO) >0.5 >0.5
13-14 (NO) >0.5 >0.5
ASCTB119E 201201-T
Panasonic Corporation Automation Controls Business Unit industrial.panasonic.com/ac/e
SFS
DIMENSIONS (mm inch)
1. 4-pole (2 Form A 2 Form B, 3 Form A 1 Form B)
2. 6-pole (4 Form A 2 Form B, 5 Form A 1 Form B, 3 Form A 3 Form B)
SAFETY STANDARDS
* CSA standard: Certified by C-UL
Certification authority File No.
UL/C-UL E43149* 6A 277V AC, 6A 30V DC
TÜV B 05 04 13461 054 6A 250V AC (cos
φ
=1.0), 6A 250V DC (0ms), AC15: 2A 240V AC (cos
φ
=1.0), DC13: 1A 24V DC (L/R 48ms)
External dimensions
General tolerance: ±0.3 ±.012
PC board pattern (Bottom view)
Tolerance: ±0.1 ±.004
1.0
11.43 .450
0.5
10.16 .2005.08
5.08
13.97
1.83
3.5
Max. 13
Max. 24
Max. 40
.039
.020
.400
.200
.550
.072
.138
Max. .512
Max. .945
Max. 1.575
5.08
13.97
(1.83)
10-1.4 .055 dia.
10.16
11.43 .450.2005.08 .200
.550
.400
(.072)
Schematic (Bottom view)
Standard
(2 Form A 2 Form B) (3 Form A 1 Form B)
With LED indication
(2 Form A 2 Form B) (3 Form A 1 Form B)
37814
102 56 9
37814
102 56 9
37814
102 56 9
37814
102 56 9
CAD Data
External dimensions
General tolerance: ±0.3 ±.012
PC board pattern (Bottom view)
Tolerance: ±0.1 ±.004
5.08.200 5.08 .200
.200
1.0 0.5
10.16 5.08
13.97
1.83
3.5
Max. 13
Max. 24
Max. 50
.450
5.08
11.43
.039 .020
.400 .200
.550
.072
.138
Max. .512
Max. .945
Max. 1.969
5.08
13.97
(1.83)
14-1.4 .055 dia.
10.16
5.08.200 5.08 .200
.200
.450
5.08
11.43
.200
.550
.138
(.072)
Schematic (Bottom view)
Standard
(4 Form A 2 Form B) (5 Form A 1 Form B) (3 Form A 3 Form B)
With LED indication
(4 Form A 2 Form B) (5 Form A 1 Form B) (3 Form A 3 Form B)
13 14
378121
2
4
56 910
11
13 14
378121
2
4
56 910
11
13 14
378121
2
4
56 910
11
13 14
378121
2
4
56 910
11
13 14
378121
2
4
56 910
11
13 14
378121
2
4
56 910
11
CAD Data
ASCTB119E 201201-T Panasonic Corporation Automation Controls Business Unit industrial.panasonic.com/ac/e
The CAD data of the products with a CAD Data mark can be downloaded from: http://industrial.panasonic.com/ac/e
SFS
NOTES
For Cautions for Use.
1. Coil operating power
Pure DC current should be applied to the
coil. The wave form should be
rectangular. If it includes ripple, the ripple
factor should be less than 5%. However,
check it with the actual circuit since the
characteristics may be slightly different.
2. Coil connection
When connecting coils, ref er to the wiring
diagram to prevent mis-operation or
malfunction.
3. Cleaning
This relay is not sealed, therefore,
immersion may cause failure. Be careful
that flux does not overflow onto the PC
board or penetrate inside the relay.
4. Soldering
When using automatic soldering, the
following conditions are recommended
1) Preheating: 120°C 248°F, within 120
Sec (PC board solder surface)
2) Soldering: 260°C±5°C 500°F±41°F,
within 6 Sec
5. Installation
1) Attach directly to the chassis or use a
DIN rail.
(1) When attaching directly to chassis
• Use a M3.5 screw, spring washer, and
hex nut.
•For the mounting pitch, refer to the
dimensions.
(2) When installing on a DIN rail
• Use a 35 mm 1.378 inch wide DIN rail
(DIN46277).
• Install and remove as shown in the
figures below.
2) Ref er to the figure below f or applicab le
wire-pressed terminals.
(You cannot use round type wire-pressed
terminals.)
6. Other
1) If the relay has been dropped, the
appearance and characteristics should
always be checked before use.
2) The switching lifetime is defined under
the standard test condition specified in
the JIS* C 5442-1996 standard
(temperature 15 to 35°C 59 to 95°F,
humidity 25 to 75%). Check this with the
actual product as it is affected by the coil
driving circuit, load type, activation
frequency, activation phase, ambient
conditions and other factors.
Also, be especially careful with loads
such as those listed below.
(1) When used f or A C load-oper ation and
the operating phase is synchronous.
Rocking and fusing can easily occur due
to contact shifting.
(2) During high frequency on/off
operation with certain loads, arcing may
occur at the contacts. This can cause
fusion to Oxygen and Nitrogen gas in the
air creating Nitric Acid (HNO3) which can
cause corrosion to the contacts.
Please see the f ollowing countermeasure
examples:
1. Incorporate an arc-extinguishing
circuit.
2. Lower the operating frequency
3. Lower the ambient humidity
3) For secure operations, nominal coil
voltage should be applied. In addition,
please note that pick-up and drop-out
voltage will v ary according to the ambient
temperature and operating conditions.
4) Heat, smoke, and/or fire may occur if
the relay is used outside the allowable
ranges for the coil ratings, contact
ratings, operating cycle lifetime, and
other specifications. Therefore, do not
use the relay if these ratings are
exceeded. Also, make sure that the relay
is wired correctly.
5) Incorrect wiring may cause false
operation or generate heat or flames.
6) Check the ambient conditions when
storing or transporting the relays and
de vices containing the relays . F reezing or
condensation may occur in the relay
causing damage. Avoid exposing the
relays to heavy loads, or strong shock
and vibration.
7. Usage, transport and storage
conditions
1) Ambient temperature, humidity, and
atmospheric pressure during usage,
transport, and storage of the relay:
(1) Temperature:
–40 to +85°C –40 to +185°F
(When the temperature is 70 to 80°C,
reduce the 6 A max. switching current by
0.1 A/°C.)
(2) Humidity: 5 to 85% RH
(Avoid freezing and condensation.)
The humidity range varies with the
temperature. Use within the range
indicated in the graph below.
(3) Atmospheric pressure: 86 to 106 kPa
Temperature and humidity range for
usage, transport, and storage
2) Condensation
Condensation forms when there is a
sudden change in temperature under
high temperature and high humidity
conditions. Condensation will cause
deterioration of the relay insulation.
3) Freezing
Condensation or other moisture may
freeze on the relay when the
temperatures is low er than 0°C 32°F. This
causes problems such as sticking of
movable parts or operational time lags.
4) Low temperature and low humidity
At low temperature, low humidity
environments , the plastic becomes brittle.
Please note corrections.
8. Please connect DC coil types with
LED and built-in diode correctly by
verifying the coil polarity (“+” and “–
”). Connecting with reverse polarity
will cause the LED not to light and
damage the built-in diode due to its
specification.
<When installing>
<When removing> Pull
Screwdriver
DIN rail
Push
6.3 mm max. 3 mm min.
.248 inch max. .118 inch min.
85
5
Humidity, %RH
Tolerance range
(Avoid
condensation
when used at
temperatures
higher than
0°C32°F)
(Avoid freezing
when used at
temperatures
lower than
0°C32°F)
850–40 +185+32–40 Temperature, °C°F
ASCTB119E 201201-T
Panasonic Corporation Automation Controls Business Unit industrial.panasonic.com/ac/e
