Series EPC
Up to 110A 460 Vac
Phase Angle Controller
Part Number
EPC24N10A
EPC24N40A
EPC24N40R
EPC46N70A
EPC46N110A
Description
10A, 265 Vac
40A, 265 Vac
40A, 265 Vac
70A, 460 Vac
110A, 460 Vac
Part Number Explanation
EPC
24
N
10
A
FEATURES/BENEFITS
• External phase angle adjust
• Designed for all loads
• Excellent thermal performance
• Internal output protection
• Proportional control with voltage or current input.
DESCRIPTION
The Series EPC phase angle controller has an analog
input isolated from the mains to vary the phase angle
proportionally to the input and load voltage. The EPC
phase angle controller is designed mainly for resistive
loads. The EPC may be used with inductive loads,
but with limitations. It provides internal protection from
load transients. The conduction level is controlled by
the input. The Series EPC provides an external adjust
that allows the user to modify the cycle time for any
particular application.
APPLICATIONS
• Lighting control (light dimming)
• Single-phase motors
• Heating control (regulation)
NOTES
1) Line Voltage (nominal): 24 = 240 Vac; 46 = 460 Vac
2) Switch Type: N = Phase Angle Control
3) Control Range: A = 0-10 Vdc; R = 4-20 mAdc
MECHANICAL SPECIFICATION
1.55 (39.5)
3.26 (82.7)
.17
(4.4)
1.57 2.89
(40) (73.5)
TYPICAL APPLICATION
3.58 (91)
3.94 (100)
WEIGHT: 14.46 oz. (410g)
Figure 1 – EPC relays; dimensions in inches (mm)
+
–
cycle Time
L1
L2
Power
supply
Cycle time adjust
Load
Figure 2 – EPC relays
© 2003 TELEDYNE RELAYS
(800) 284-7007 • www.teledynerelays.com
EPC 1
EPC\032003\Q1
Series EPC
INPUT (CONTROL) SPECIFICATION
Min
Control Voltage Range
EPCXXNXXA
EPC24N40R
Control Current Range
EPC24N40R
Must Turn-Off Voltage
EPCXXNXXA
Must Turn-Off Current
EPC24N40R
Input Resistance (Typical)
EPCXXNXXA
EPC24N40R
400±2%
0.25
Ohms
Ohms
4
mA
Off-State Leakage Current
EPC24N10A
EPC24N40A
EPC24N40R
EPC46N70A
EPC46N110A
OUTPUT (LOAD) SPECIFICATION
Min
Operating Range
EPC24
EPC46
115
200
265
460
Vrms
Vrms
Turn-Off Time
All relays
41.5
ms
Max
Unit
Turn-On Time
All relays (60 Hz)
8.3
ms
4
4
4
5
5
mArms
mArms
mArms
mArms
mArms
0.2
V
On-State Voltage Drop
All relays
1.6
V
5.5
20
mAdc
0
1
10
5
V
V
Max
Units
OUTPUT (LOAD) SPECIFICATION (Continued)
Min
Maximum Surge Current Rating
(Non-Repetitive, See Figure 9)
EPC24N10A
EPC24N40A
EPC24N40R
EPC46N70A
EPC46N110A
120
550
550
1000
2000
A
A
A
A
A
Max
Unit
Peak Voltage (Clamping Voltage)
EPC24
EPC46
Internal Circuit Consumption
EPC24
EPC46
Load Current Range (See Figure 8)
EPC24N10A
EPC24N40A
EPC24N40R
EPC46N70A
EPC46N110A
.01
.01
.01
.01
.01
10
40
40
70
110
Arms
Arms
Arms
Arms
Arms
7
4
mArms
mArms
600 (450) Vpeak
1200 (800) Vpeak
Operating Frequency (Trimmer must be adjusted)
All relays
47
100
Hz
Off-State dv/dt (Non-Repetitive)
All relays
I
2
t for Match Fusing (<8.3ms)
EPC24N10A
EPC24N40A
EPC24N40R
EPC46N70A
EPC46N110A
72
1500
1500
5000
20,000
A
2
S
A
2
S
A
2
S
A
2
S
A
2
S
500
V/µs
EPC 2
SPECIFICATIONS ARE SUBJECT TO CHANGE WITHOUT NOTICE
© 2003 TELEDYNE RELAYS
EPC\032003\Q1
Series EPC
EQUIVALENT CIRCUIT
N
+8V
External setting
of the synchronization
ramp versus main voltage
Ramp
Supply
Mains
P
ENVIRONMENTAL SPECIFICATION
Min
Storage Temperature
Operating Temperature
Junction Temperature
–40
–40
–40
Max
85
85
125
2.7
1.1
1.1
0.43
0.35
8
100
50
Unit
°C
°C
°C
°C/W
°C/W
°C/W
°C/W
°C/W
pF
G
G
Synchro
Transformer
Junction-Case Thermal Resistance
EPC24N10A
EPC24N40A
Analog input +
–
+
LED
Photocoupler
EPC24N40R
EPC46N70A
Load
Analog input –
EPC46N110A
Input-Output Isolation
Shock (@11ms)
Vibrations (10 to 4000Hz)
Figure 3 – EPC relays
EXTERNAL PHASE ANGLE ADJUST
Input-Output Isolation @500m
All relays
Output-Case Isolation @500m
EPC24N10A
All relays
2500
Vrms
2500
3300
Vrms
Vrms
Setting position of the
integrated trimmer: 180˚
Setting position of the
integrated trimmer: 90˚
Rated Impulse Voltage
EPC24N10A
All relays
2500
4000
V
V
Figure 4 – EPC relays
PRINCIPLE OF PHASE ANGLE CONTROL: INPUT/OUTPUT TRANSFER CHARACTERISTICS
Resistive load
Load voltage
Load current
U Load/ U Mains
tr
100%
RMS inductive load voltage
versus delay time control
Firing delay time
75%
Inductive load
Load voltage
Load current
50%
25%
tr
RMS resistive load voltage
versus delay time control
tr
half cycle
full cycle
Firing delay time
0%
0ms
Figure 5 – EPC relays
© 2003 TELEDYNE RELAYS
(800) 284-7007 • www.teledynerelays.com
EPC 3
EPC\032003\Q1
Series EPC
INPUT/OUTPUT TRANSFER CHARACTERISTICS
Firing delay time
8.4ms
Firing delay time
10ms
1
1
5
5
4
4.2ms
5ms
4
2
3
Analog
input voltage
2
3
Analog
input voltage
Load voltage
0ms
0V -> EPCXXXXXA
10V
Load voltage
0ms
0mA
5.5mA -> EPC24N40R
20mA
Figure 6a – EPCXXNXXA
1. Factory presetting to 144°
±10%
(@50Hz)of the initial
maximum firing delay angle. It can be modified by using the
external phase angle adjust. A variation in the load voltage
causes a small decrease of this angle. For 60Hz see item 4.
2. Full conduction mode voltage:
Control Voltage = 10 Vdc
(+0; –5%)
3. Factory presetting to 0.2 Vdc
±0.1V
of the minimum control
input voltage. Below 0.2Vdc, the relay is off; above 0.2Vdc, the
relay is On at a firing delay angle that depends on the external
phase angle adjust.
4. Possible presetting zone by using the external phase
angle adjust.
5. Firing delay angle limit:
170° (0; +5%);
Conditions: EPC24 @ 135 Vac, EPC46 @ 240Vac
Figure 6b – EPC24N40R
1. Factory presetting to 170°
±10%
(@50Hz)of the initial
maximum firing delay angle. It can be modified by using the
external phase angle adjust. A variation in load voltage causes a
small decrease of this angle. For 60Hz see item 4.
2. Full conduction mode voltage:
20 mA (+0; –10%)
3. Factory presetting to 5.5 mA (+10%; –0)
of the minimum
control input current.
4. Possible presetting zone by using the external phase
angle adjust.
5. Firing delay angle limit:
170° (0; +5%);
Conditions: @135 Vac; Control input = 5.5 mA.
TYPICAL FILTER EXAMPLES
Filter
C1
Filter 1
P
Filter 2
C2
Relay
L
C1
Relay
L
N
M
C0
1
Filter 1 comprised of C1
and motor inductance
Load
C1 type : X2
C0
Usually
C0 = 2.2nF max
Y type
Figure 7a – Low currents
Figure 7b – High currents, filters in series
EPC 4
SPECIFICATIONS ARE SUBJECT TO CHANGE WITHOUT NOTICE
© 2003 TELEDYNE RELAYS
EPC\032003\Q1
Series EPC
THERMAL CHARACTERISTICS
Tcase max (˚C)
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
0
1
2
3
4
5
6
7
8
9
10
0
1
10
20
30
40
50
60
70
80
90 100110 125
Without Heat Sink
240 Vac
5°C/W
440 Vac
4°C/W
SURGE CURRENT
150
85
0°C/W
87.5
Non-Repetitive
2°C/W
Power Dissipation (W)
Apeak
100
50
90°C
Repetitive with initial Tj = 70˚C
0
0.01
0.1
t (s)
1
10
Figure 9a – EPC24N10A
600
Non-Repetitive
Load Current (Arms)
Ambient Temperature (°C)
Figure 8a – EPC24N10A
0.9°C/W
60
55
C
1
°
0
°
C
0.
C
4
°
7
°
0.
Apeak
400
200
Repetitive with initial Tj = 70°C
Tcase max (°C)
65
0
0.01
0.1
1
10
50
45
75
t (s)
1.
1.
/W
Power Dissipation (W)
5
°
C
C
2
°
W
C/
/W
/W
/W
40
35
30
25
2
°
C/
/W
85
Figure 9b – EPC24N40A, EPC24N40R
1500
W
15
10
5
0
0
5
10
15
20
25
30
35
40
0
/W
Apeak
20
90°C
4
°
C
1000
Non-repetitive
With
out
Hea
t Sin
k
500
Repetitive with initial Tj = 70°C
1
10
20
30
40
50
60
70
80
90 100 110 125
0
0.01
0.1
Load Current (Arms)
Ambient Temperature (°C)
t (s)
1
10
Figure 8b – EPC24N40A, EPC24N40R
120
85
Figure 9c – EPC46N70A
2000
Non-Repetitive
/
0
°
C
W
110
110A
100
90
0.
55
°
W
°
C/
0.1
°
C
0.2
/W
1500
/W
Apeak
Max. case temperature (°C)
Power Dissipation (W)
0.
80
70
60
50
40
30
20
10
0
0
10 20 30 40 50 60 70 80 90 100 110
0
70A
1.
90°C
Withou
5
°
0.7
W
C/
9
°
C
/W
2
°
C
/W
/W
t Heat
Sink
1000
500
Repetitive with initial Tj = 70°C
0
0.01
0.1
t (s)
1
10
2
°
C
Figure 9d – EPC46N110A
10
20
30
40
50
60
70
80
90
100
Load Current (Arms)
Ambient Temperature (°C)
Figure 8c – EPC46N70A, EPC46N110A
NOTES:
1. Electrical specifications at 25°C unless otherwise specified.
2. Phase cutting generates RFI. Filters are recommended.
3. For inductive loads, contact factory.
© 2003 TELEDYNE RELAYS
(800) 284-7007 • www.teledynerelays.com
EPC 5
EPC\032003\Q1
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