© 2010 TELEDYNE RELAYS (800) 284-7007 • www.teledynerelays.com FS 1
FS\032010\Q1
Output to 20A 280 Vac
DC Control
FEATURES/BENEFITS
•Miniature size package
•Designed for medium-power applications
• Faston or PCB terminals available
•Tight zero-cross window for low EMI
• Excellent thermal performance
•High immunity to surges
DESCRIPTION
The Series FS relays are designed for medium-power
loads. The design incorporates a triac output. The
Series FS relays utilize optical isolation to protect the
control from load transients. The FS compact
package is available with faston or PCB terminals.
Its compact size makes it ideal for designs where
space is limited. The Series FS relays have excellent
thermal performance.
APPLICATIONS
•Heating control
•Motor control
•Uninterruptible power supplies
•Light dimmers
• Industrial and process control
•On/Off controls of medium-power AC equipment
•Electromechanical line relay replacement
APPROVALS
All models are UL recognized.
UL File Number E128555.
Part Number Description
FS24R10-06 10A, 280 Vac
FS24D10-06 10A, 280 Vac
FS24D10 10A, 280 Vac
FS24D20-06 20A, 280 Vac
Part Number Explanation
Series FS
NOTES
1) Line V oltage (nominal): 24 = 240 Vac
2) Switch Type: R = Random turn-on; D = Zero-cross turn-on;
3) Feature: -06 = Faston terminals
Figure 2 — FS relays
EQUIVALENT CIRCUIT
MECHANICAL SPECIFICATION
1.18 (30)
.83 (21)
.83 (21)
.16 (4)
.5 (12.7)
1.4 (35.5)
.08 (2)
.39
(10)
.34
(8.6) .98 (25)
.46 (11.6)
.59 (15)
.19x.03
(4.8x0.8) .25x.03
(6.35x0.8)
.32 (8) .25 (6.4)
21
-4 +3
WEIGHT: 3.2 oz. (90g)
1.18 (30)
.83 (21)
.83 (21)
.16 (4)
.5 (12.7)
1.4 (35.5)
.08 (2)
.83 (21) .59 (15)
2 1
– 4 +3
.24 (6)
Ø 0.5 (1.32)
.2 (5.06)
.3 (7.62)
WEIGHT: 3.2 oz. (90g)
Figure 1a — FS relays except FS24D10 & FS24D20
Figure 1b — FS24D10 & FS24D20
ZERO
CROSS
1 ~
2 ~
3 +
4 –
R
FS 24 R 10 -06
FS24D20 20A, 280 Vac
FS 2 SPECIFICATIONS ARE SUBJECT TO CHANGE WITHOUT NOTICE © 2010 TELEDYNE RELAYS
FS\032010\Q1
OUTPUT (LOAD) SPECIFICATION
Input T ype Min Max Units
Operating Range
All relays 12 280 Vrms
Peak V oltage
All relays 600 Vpeak
Load Current Range (Resistive)
10A output current .005 10 Arms
20A output current .005 20 Arms
Inductive Load Current
10A output current 2.5 Arms
20A output current 4 Arms
Maximum Surge Current Rating (Non-Repetitive)
10A output current 120 A
20A output current 200 A
On-State V oltage Drop
All relays output current 1.3 V
INPUT (CONTROL) SPECIFICATION
Min Max Units
Control Range
FS24R 3 30 Vdc
FS24D 4 30 Vdc
Input Current Range
FS24R 2 30 mAdc
FS24D 3 30 mAdc
Must Turn-Off Voltage
All relays 1 Vdc
Input Resistance (T ypical)
All relays 1000 Ohms
Reverse V oltage Protection
All relays 30 V
Series FS
OUTPUT (LOAD) SPECIFICATION (Continued)
Min Max Units
Zero Cross Window (T ypical)
FS24 R NA
FS24 D 12 Vac
Off-State Leakage Current (60Hz)
All relays 3 mA
Turn-On Time (60 Hz)
FS24R 0.1 ms
FS24D 8.3 ms
Turn-Off Time (60 Hz)
All relays 8.3 ms
Off-State dv/dt
All relays 500 V/µs
Maximum di/dt (Non-Repetitive)
All relays 50 A/µs
Operating Frequency Range
All relays 0.1 440 Hz
I2t for Match Fusing (<8.3ms)
10A output current .005 72 A2S
20A output current .005 200 A2S
CONTROL CHARACTERISTIC
Control Voltage (V)
Input Current (mA)
2
4
6
8
10
12
14
16
18
20
22
24
26
28
30
0246810121416182022242628300
Figure 3 — FS relays
© 2010 TELEDYNE RELAYS (800) 284-7007 • www.teledynerelays.com FS 3
FS\032010\Q1
Series FS
SURGE CURRENT
Figure 4a — All 10A FS relays output current
Figure 4b — All 20A relays output current
ENVIRONMENTAL SPECIFICATION
Min Max Units
Operating Temperature –40 100 °C
Storage Temperature –40 100 °C
Input-Output Isolation 4000 V rms
Output-Case Isolation 2500 Vrms
Non-Repetitive
0
50
100
150
Apeak
1100.10.01
t (s)
Repetitive with initial Tj = 70°C
Number of Cycles
Overload Current (A)
110 100 1000
0
20
40
60
80
100
120
140
160
180
200
THERMAL CHARACTERISTICS
13
12
11
10
9
8
7
6
5
4
3
2
1
0109876543210 2010030405060708090100 110 120125
2°C/W
4°C/W
0°C/W
NO HEAT SINK
Load Current (Arms) Ambient Temperature (°C)
Power Dissipation (W)
Max Case Temperature (°C)
90°C
70
80
1°C/W
0°C/W
01020304050607080901001101201250 5 10 15 20
0
5
10
15
20
25
30
35
90
1.5°C/W
1.2°C/W
2°C/W
100°C
4°C/W
NO HEAT SINK
Power Dissipation (W)
Max Case Temperature (°C)
Load Current (Arms) Ambient Temperature (°C)
Figure 5a — All 10A FS relays output current
Figure 5b — All 20A FS relays output current
NOTES:
1. External snubber is recommended when switching inductive
loads.
2. Electrical specifications at 25°C unless otherwise specified.
3. For 800Hz applications, contact factory.
4. For additional/custom options, contact factory.
