Electrical equipment should only be installed, operated, serviced and maintained by qualified personnel.
______________
Hubbell Wiring Devices
No responsibility is assumed by Hubbell for any consequences arising out of the use of this material.
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1-800-729-3406 | www.Hubbell-Wiring.com
23
Dry Contacts
HAZARD OF ELECTRIC SHOCK, EXPLOSION, OR ARC FLASH
• Use 600 Vac rated dry contact wiring.
• Dry contact wiring must have less than 1/16 in. (1.6 mm) exposed wire from
the dry contact block.
• Maintain at least 1.0 in. (25 mm) separation between dry contact wiring and
the power wiring in the enclosure.
Failure to follow these instructions will result in death or serious injury.
The SpikeShield series SPD is provided with dry contacts. The connection for
the dry contacts is located on the back of the diagnostic display panel (lower
right corner, refer to Figure 17). and will accept # 22–14 AWG stranded or solid
wire. The dry contacts are three-position, Form “C” type with Normally Open,
Normally Closed, and Common connections.
In the unpowered state the contact is closed between terminals NC and COM.
This is also the alarm condition. The opposite state, closed between terminals
NO and COM, indicates that power is on to the unit and that no alarm condition
exists (See Table 4).
These contacts can be used for remote indication of the SPD’s operating status
to a computer interface board or emergency management system. Also, these
contacts are designed to work with the SPD remote monitor option described in
the next section.
Table
4:
Dry Contact Configuration
Alarm Contact Terminals
Contact State with Power Applied
NO to COM
Closed
NC to COM
Open
Care must be taken when installing the dry contact wiring because the terminals
are on a moving door. Avoid the door hinge, any switches, and the high voltage
areas of the enclosure when routing the wiring. To avoid the door hinge, tie wrap
any dry contact wiring to the existing cable harness which crosses the hinge.
Once the dry contact wiring is secured on a non-moving point of the enclosure, it
is the user’s responsibility to maintain at least 1.0 in. (25 mm) separation
between 600 Vac rated dry contact wiring and the power wiring in the enclosure.
The dry contacts are designed for a maximum voltage of 24 Vdc / 24 Vac and a
maximum current of 2 A. Higher energy applications may require additional relay
implementation outside the SPD. Damage to the SPD relay caused by use with
energy levels in excess of those discussed in this instruction bulletin are not
covered by warranty. For application questions, contact Hubbell at
1-800-729-3406.
DANGER
SpikeShield
®
Modular Panel Surge Protective Device (SPD)
OPERATION
