ERICO TDS-DINLINE Surge Suppressor - Manual (Page 8)

PAGE 8
D S D I N S T A L L A T I O N I N S T R U C T I O N S
6. VOLTAGE RATINGS
Ensure that the correct voltage rating unit is
installed. Exceeding the nominal voltage
rating under transient conditions may affect
product life. Do not exceed the Maximum
Permissible Abnormal Over Voltage rating.
Maximum
Model Nominal Voltage Permissible
Abnormal
Over Voltage
TDS XXX-120 110-120 Vac 240Vac
TDS XXX-208 208 Vac 260 Vac
TDS XXX-240 220-240 Vac 415 Vac
TDS XXX-277 220-277 Vac 480 Vac
7. PROTECTION MODES
Protection Modes refers to how the internal
protection is arranged and applied to the
circuit to be protected.
TDS-DINLINE Surge Suppressors are Single
Mode units which provide protection between
two conductors connected to the terminals
marked T1 and T2. These units can be
connected to provide protection from Phase-
Neutral* or Phase-Earth* or Neutral-Earth.
To allow the status indication and alarm
circuitry to operate, a neutral connection is
required for Phase-Earth* configured units,
and a Phase* connection is required for
Neutral-Earth configured units.
* Note. Some users may be used to the
terminology “Active” or “Line”, in place of
“Phase”. For consistency “Phase” is used
throughout this documentation.