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4
OV R HT3 SERI ES AN D OV RHS 3U SER IES S U R G E P R OT E C T I V E D E V I C E S
Connecting the remote contacts to an alarm
(If option chosen on the OVRHS3U)
For "fail-safe" Form "C" monitoring, use the labeled Form "C" wire
outputs to the alarm detection wires. Both outputs NO or NC
are available and either can be used dependent upon Negative or
positive logic choice. Relay contacts are rated for 1A, at 150Vac or
60Vdc maximum.
1
1
2
RE
3
2
M
OT
E
3
AL
AR
M
Relay contacts shown in the relaxed position
(protector alarm or loss of power).
Note: Maximum torque on terminals is 10 in-lbs.
CAUTION:
Do not assume the circuit is de-energized! Remove power before
performing any maintenance to these devices.
CAUTION:
Do not splice SPD conductors within the unit's enclosure or
manufacturer's warranty will be void. SPD's performance will be
limited severely if the conductors are A) too long B) are of too small
a wire gauge C) have too many bends or D) have sharp bends.
CAUTION:
Prior to installation, confirm and ensure the system configuration
and voltage rating of the surge protector being installed.
—
Electrification Products
5900 Eastport Boulevard
Richmond, VA 23231-4453 USA
Tel: +1 800 292 3739
Fax: +1 804 236 4047
abb.com
Additional information
We reserve the right to make technical
changes to the product and to the
information in this document without
notice. The agreed conditions at the time
of the order shall apply. ABB assumes no
responsibility for any errors or omissions
that may appear in this document. We
reserve all rights in this document and in
the information contained therein.
Without prior written approval from ABB,
reproduction, disclosure to third parties
or use of any information, in whole or in
part, is strictly forbidden.
© Copyright 2017 Thomas and Betts Power Solutions, LLC. All rights reserved.
Specifications subject to change without notice.
Surge
Protector
Protector
Service
Panel Side
Service Panel Side
OVRHT3B mounting
Neutral
Bars
Line Wire
Surge Protector
OVRHT3C mounting
OVRHS3U mounting
Electrical Service Entry
L
Optional
Circuit
N
N
Breaker
G
G
Ground
Optional
Circuit Breaker
N
G
Locknut
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