© 2002 TELEDYNE RELAYS (800) 284-7007 • www.teledynerelays.com E3P 11
E3P\072001\Q1
Three-Phase Output to 75A 600Vac
DC Control
FEATURES/BENEFITS
•Three-phase output
•AC or DC control
•Internal output protection
•Control LED on all models
•Designed for all types of loads
•Excellent thermal performance
•Tight zero-cross window for low EMI
• High immunity to surges
DESCRIPTION
The Series E3P three-phase relays are designed f or
all types of loads. The design incorporates a thyristor
output. Control status LED is a standard on all models.
Output protection is provided internally on certain
models. The Series E3P utilizes optical isolation to
protect the control from load transients . High current
models are e xcellent for motor control.
APPLICATIONS
•Heating control
•Motor control
•Uninterruptible power supplies
•Light dimmers
•Three-phase industrial and process control
•On/Off controls of AC equipment
APPROVALS
Series E3P relays are pending UL recognition.
Part Number Description
E3P48R50-16 50A, 520 Vac
E3P48D50-16 50A, 520 Vac
E3P48D75-16 75A, 520 Vac
E3P48D12 12A, 600 Vac
E3P48D25 25A, 600 Vac
E3P48D50 50A, 600 Vac
E3P48A50 50A, 600 Vac
E3P48D75 75A, 600 Vac
Part Number Explanation
Series E3P
NOTES
1) Line Voltage (nominal): 48 = 480 Vac
2) Switch Type: R = Random turn-on; D = Zero cross turn-on;
A = AC control, Zero cross turn-on
3) Options: -16 = MOV
Figure 2 — E3P relays
TYPICAL APPLICATION
MECHANICAL SPECIFICATION
Figure 1 — E3P relays; dimensions in inches (mm)
E3P 48 R -1650
Series Line Voltage
1
Output Current - Amps
Switch Type
2
Options
3
3.58 (91)
3.94 (100)
3.26 (82.7)
.17 (4.4)
WEIGHT: 13.05 oz. (370g)
.75 (19) .75 (19)
2T1 4T2 6T3
1L1 3L2 5L
3
A2
A1
+
-
1.56
(39.5)
1.58
(40) 2.89
(73.5)
2.3
(58.4)
.91 (23)
RST RST RST
Resistive or
inductive load
M
E3P 12 SPECIFICATIONS ARE SUBJECT TO CHANGE WITHOUT NOTICE © 2002 TELEDYNE RELAYS
E3P\072001\Q1
CONTROL CHARACTERISTIC
Series E3P
INPUT (CONTROL) SPECIFICATION
Input Type Min Max Units
Control Range
E3P R/D 8.5 30 Vdc
E3P A 90 240 Vdc
Input Current Range
E3P R/D 10 45 mA
E3P A 4 11 mA
Must Turn-Off V oltage
All relays 4 Vdc
Input Resistance (Typical)
E3P R/D 620 Ohms
E3P A 21 KOhms
Rev erse Voltage Protection
E3P R/D 30 V
E3P A NA
024681012141618202224262830
0
10
20
30
40
50
0
Control Voltage (V)
Input Current (mA)
50 100 150 200 2500
0
5
10
15
Control Voltage (V)
Input Current (mA)
LED
Adapter
Adapter
Adapter
7+
8-
L1/R
U
L2/S
V
L3/T
W
LED
A2-
A1+
1L1
3L2
5L3
2T1
4T2
6T3
Adapter
Adapter
Adapter
LED
A1
A2
1L1
2T1
3L2
4T2
5L3
6T3
=
Adapter
Adapter
Adapter
BLOCK DIAGRAM
Figure 3a — All E3P relays except E3P48A50
Figure 3b — E3P48A50
Figure 4a — E3P48R50-16
Figure 4b — E3P48D relays
Figure 4c — E3P48A50
LED
A1+
A2 -
Adapter
Adapter
Adapter
1L1
2T1
3L2
4T2
5L3
6T3
Figure 4d — E3P48DXX-16
© 2002 TELEDYNE RELAYS (800) 284-7007 • www.teledynerelays.com E3P 13
E3P\072001\Q1
Series E3P
ENVIRONMENTAL SPECIFICATION
Min Max Units
Operating Temperature –40 100 °C
Storage Temperature –40 100 °C
Input-Output Isolation 4000 Vrms
Output-Case Isolation
E3P48D12 2500 Vrms
E3P48D25 2500 Vrms
All other relays 3300 Vrms
OUTPUT (LOAD) SPECIFICATION
Min Max Units
Operating Range
E3P48XXX-16 24 520 Vrms
E3P48 24 600 Vrms
Peak V oltage
All relays 1200 Vpeak
Minimum Load Current
All relays 5 mA
Inductive Load Current
E3P with -16 option 50A output 12 Arms
E3P with -16 option 75A output 16 Arms
Maximum Surge Current Rating (Non-Repetitive)
12A output 120 A
25A output 230 A
50A output 550 A
75A output 1000 A
On-State V oltage Drop
All relays output current 1.4 V
Zero Cross Window (Typical)
E3P48DXX-16 12 V
E3P48 24 V
E3P48R NA
Off-State Leakage Current (60Hz)
E3P48DXX-16 5 mA
All other relays 1 mA
Turn-On Time (60 Hz)
E3P48R 0.1 ms
All other relays 8.3 ms
Turn-Off Time (60 Hz)
All relays 8.3 ms
Off-State dv/dt
All relays 500 V/µs
OUTPUT (LOAD) SPECIFICATION (Continued)
Min Max Units
Maximum di/dt (Non-Repetitive)
All relays 50 A/µs
Operating Frequency Range
All relays 10 440 Hz
I2t for Match Fusing (<8.3ms)
12A output 72 A2S
25A output 265 A2S
50A output 1500 A2S
75A output 5000 A2S
E3P 14 SPECIFICATIONS ARE SUBJECT TO CHANGE WITHOUT NOTICE © 2002 TELEDYNE RELAYS
E3P\072001\Q1
SURGE CURRENT
NOTES:
1. Electrical specifications at 25°C unless otherwise specified.
2. For 800Hz applications, contact factory.
3. For additional/custom options, contact factory.
THERMAL CHARACTERISTICS
Series E3P
10 20 30 40 50 60 70 80 90 1000
Ambient Temperature (°C)
without heat sink
051015 20 25 30 35 40 45 50
0
20
40
60
80
100
120
140
160
180
200
220
RMS Load Current (A)
Power Dissipation (W)
Full on-state 0.3°C/W
.55°C/W
.95°C/W
1.2°C/W
50% duty cycle
(R type only)
1202 46 810
0
10
20
30
40
50
60
RMS Load Current (A)
Power Dissipation (W)
Full on-state
10 20 3
0
40 50 60 70 8
0
90 1000
Ambient Temperature (°C)
without heat sink
3°C/W
1.2°C/W
0.95°C/W
010 20 30 40 5
0
60 70 80 90 100
Ambient Temperature (°C)
without heat sink
1.2°C/W
0.9°C/W
0.55°C/W
051015 20 25
0
10
20
30
40
50
60
70
80
90
100
110
RMS Load Current (A)
Power Dissipation (W)
Full on-state
010 20 30 40 50 60 70 800
20
40
60
80
100
120
140
160
180
200
220
240
260
280
300
Power Dissipation (W)
Full on-state
0102030405060708090100
without heat sink
1.2°C/W
0.95°C/W
0.55°C/W
0.3°C/W
0
RMS Load Current (A) Ambient Temperature (°C)
1100.10.01
0
200
400
600
A
peak
Non-repetitive
t (s)
Repetitive with initial Tj = 70°C
11010.10.01
0
5
0
100
150
0
t(s)
Apeak
Non-repetitive
Repetitive with initial Tj = 70°C
11010.10.01
0
50
100
150
200
250
0
t(s)
A
peak
Non-repetitive
Repetitive with initial Tj = 70°C
11010.10.01
0
500
1000
1500
0 t (s)
A
peak
Non-repetitive
Repetitive with initial Tj = 70°C
Figure 5c — 50A output
Figure 5a — 12A output
Figure 5b — 25A output
Figure 5d — 75A output
Figure 6c — 50A output
Figure 6a — 12A output
Figure 6b — 25A output
Figure 6d — 75A output
