Electrical equipment should only be installed, operated, serviced and maintained by qualified personnel.
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7
Terminals, Wire Size, and
Installation Torque
Terminals are provided for phase (line), neutral, and equipment ground
connections. The terminals accept a range of 10 AWG to 2 AWG copper wire for
the offer without internal switch for phase, neutral and ground connectors and
10 AWG to 3/0 AWG copper wire for the switch offer for phase connectors.
Torque connections to the following values:
Table
2:
Terminal Torque
Power Connection
Torque
AØ, BØ, CØ and N
40 lb-in. (4 N•m)
Ground
Switch
50 lb-in. (5 N•m)
Branch Circuit Overcurrent
Protection
HAZARD OF ELECTRIC SHOCK, EXPLOSION, OR ARC FLASH
• Use conductors rated for the Overcurrent Protection Device (OCPD) per
applicable codes.
• Use conductors rated for the application per applicable codes.
Failure to follow these instructions will result in death or serious injury.
UL 1449 Type 1 SPDs have been designed and approved for line side
applications prior to the main service disconnect without supplemental
overcurrent protection. Type 1 SPDs may also be installed on the load side of
the main Overcurrent Protection Device (OCPD).
Location of Surge Protective
Device (SPD)
Locate the SPD as close as possible to the circuit being addressed to minimize
the wire length and optimize SPD performance. Avoid long wire runs so that the
device will perform as intended. To reduce wire impedance from surge currents,
the phase, neutral, and ground conductors must be routed within the same
conduit and tightly bundled or twisted together to optimize device performance.
Avoid sharp bends in the conductors. See Figure
2.
Figure
2:
Surge Protective Device Wiring Practice
To load(s)
Phases
Neutral
(if applicable)
Ground
Ground bus
Neutral bus
SPD
Phase A
Phase B
Phase C
Neutral
(if applicable)
Ground
Interconnect wiring
– Minimize length
– Avoid sharp bends
Panel
DANGER
SpikeShield
®
Modular Panel Surge Protective Device (SPD)
ELECTRICAL
