Series E3PT
Three-Phase Output to 50A 520 Vac
Touch-Proof, AC or DC Control
Part Number
E3PT48D12
E3PT48A12
E3PT48D50
E3PT48A50
E3PT48D50H
E3PT48A50H
Description
12A, 520 Vac
12A, 520 Vac
50A*, 520 Vac
50A*, 520 Vac
50A*, 520 Vac
50A*, 520 Vac
E3PT
48
D
50
H
NOTES
1) Line Voltage (nominal): 48 = 480 Vac
2) Switch Type: D = Zero-cross turn-on
A = AC control, Zero-cross turn-on
3) H = High surge capability
*Current limited to 50A due to terminals
FEATURES/BENEFITS
• Designed for all types of loads
• Tight zero-cross window
• Control LED on all models
• Internal output transient protection
• Touch-proof
DESCRIPTION
The Series E3PT three-phase solid-state relays are
designed for all types of loads. The E3PT relays
include as a standard a control LED for visual status.
The E3PT series is touch-proof for user safety. An
internal MOV and snubber circuit protect the output
thyristor. The E3PT relays are highly immune to large
current surges. The tight zero-cross window provides
a low EMI level. The E3PT relays are an excellent
choice for three-phase applications.
APPLICATIONS
• Heating control
• Motor control
• Three-phase industrial and process control
APPROVALS
Series E3PT relays are pending UL recognition.
MECHANICAL SPECIFICATION
3.26 (82.7)
M4
.17 (4.4)
.75
(19)
.75
(19)
1.57 (40)
2.3 (58.4)
M3.5
.91 (23)
3.58 (91)
3.94 (100)
2.22 (56.5)
2.99 (76)
TYPICAL APPLICATION
R
S
T
R
S
T
R
S
T
WEIGHT: 14.46 oz. (410g)
Figure 1 — E3PT relays; dimensions in inches (mm)
Resistive or
inductive load
M
Figure 2 — E3PT typical application
© 2003 TELEDYNE RELAYS
(800) 284-7007 • www.teledynerelays.com
E3PT 1
E3PT\032003\Q1
TELEDYNE [ TELEDYNE TECHNOLOGIES INCORPORATED ]
