ERICO TDX50 Series - Manual (Page 3)

Installation Instructions
TDX50 Series
34600 Solon Road
Solon, Ohio 44139
(440) 248-0100
www.erico.com
IMPORTANT
WARNING. Several “Delta” and “No-neutral” power systems exist and are often confused.
Failure to correctly identify and use the correct SPD may cause an electrical shock or burn hazard.
Three Phase
Grounded Delta
3Ø 3W+G
∆
("Grounded B Phase")
DESCRIPTION CONFIGURATION TYPICAL VOLTAGE SPD
L1
N
L2
G
Single Phase
(Split)
1Ø 3W+G
120V
120V
120/240V
L-N
L-G
L-L 240V
120/240V TDX50 120/240
L1
N
L2
L3
G
Three Phase Wye
3Ø Wye 4W+G
120V 277V 347V
120V 277V 347V
120/208V 277/480V 347/600V
L-N
L-G
L-L 208V 480V 600V
120/208V TDX50 120/208
277/480V TDX50 277/480
347/600 TDX50 347/600
L1
L2
L3
G
Three Phase Wye
3Ø Wye 3W+G
(No Neutral)
208V 480V 600V
120V 277V 347V
208V 480V 600V
L-L
L-G
208V TDX50 120/208
480V TDX50 277/480
600V TDX50 347/600 (1)
(1)
(1)
240V 480V
0V 0V
240V 480V
L1-G
L2-G
L3-G
L-L 240V 480V
240V 480V
Three Phase
Ungrounded Delta
3Ø 3W+G
∆ 0- 240V 0-480V
240V 480V
L-G
L-L 240V 480V
Three Phase
High Leg Delta
3Ø 4W+G
∆ 208V
120V
120V
240V
L1-N
L2-N
L3-N
L-L 240V
Use TDX150
or TDX100 Series
Use TDX150
or TDX100 Series
(1) Cap or insulate neutral
L1
N
G
Single Phase
1Ø 2W+G
120V 240V
120V 240V
120V 240V
L-N
L-G
120V TDX50 120
240V TDX50 240