Instruction manual

The brick panel series SPD’s come with dry contacts. The connection for
the dry contacts is located on the back of the diagnostic display panel
(lower right corner). The dry contacts are 3-position, Form "C" type with
Normally Open (NO), Normally Closed (NC) and Common (COM) connections.
The unpowered state shall be closed between terminals NO and COM.
This is also the alarm condition. The opposite state, closed between
terminals NC and COM, indicates that power is on to the unit and that
no alarm condition exists (See Table 3). These contacts can be used for
remote indication of the SPD’s operating status to a computer interface
board or emergency management system.
The contacts are designed for a Maximum voltage of 24 VDC and a
maximum current of 2 A. Higher energy applications may require additional
relay implementation outside the SPD. Damage to the SPD’s relay caused
by use with energy levels in excess of those discussed in this instruction
manual are not covered by warranty. For application questions, contact
your APC representative.
Care must be taken when installing the dry contact wires because the
Once the dry contact
power wiring in the enclosure.
Table 3: Dry Contact Configuration
Alarm Contact
Terminals
Contact State with Power Removed
NC Open
COM Common
NO Closed
DRY CONTACTS
De-energize power to the brick panel before installing dry contact wires.
terminals are on a removal panel or hinged door. Avoid the door hinge, any
disconnect switches and the high voltage areas of the enclosure when routing
the wires. To avoid the door hinge, secure the dry contact wires to the existing
wiring harness. For removal panels, secure the wires to the inside wall of the
fixed enclosure.
wiring is secured on a non-moving
point of the enclosure, it is the user’s
responsibility to maintain separation
between dry contact wiring and the
DANGER
HAZARD OF ELECTRIC SHOCK, EXPLOSION, OR ARC
FLASH
· Apply appropriate personal protective equipment (PPE) and follow safe
electrical work practices. See NFPA 70E.
· This equipment must only be installed and serviced by qualified
electrical personnel.
· Turn off all power supplying this equipment before working on or
inside equipment.
· Always use a properly rated voltage sensing device to confirm
power is off.
· Replace all devices, doors and covers before turning on power to this
equipment.
Failure to follow these instructions will result in death or
serious injury.
APC BRICK PANEL PRODUCTS Surge Protective Device (SPD)
OPERATION
16