3
OVRHS3U401201P
OVRHS3U402401P
OVRHT3B(C)501201P
OVRHT3B(C)502401P
OVRHT3B(C)502771P
OVRHT3B(C)504801P
OVRHS3U401202S
OVRHT3B(C)501202S
OVRHT3B(C)502402S
OVRHS3U402083Y
OVRHS3U402773Y
OVRHS3U402303Y
OVRHT3B(C)501203Y
OVRHT3B(C)502203Y
OVRHT3B(C)502303Y
OVRHT3B(C)502403Y
OVRHT3B(C)502773Y
OVRHT3B(C)503473Y
OVRHT3B(C)502403H
OVRHS3U402403D
OVRHS3U404803D
OVRHT3B(C)502403D
OVRHT3B(C)503803D
OVRHT3B(C)504003D
OVRHT3B(C)504153D
OVRHT3B(C)504803D
OVRHT3B(C)506003D
Figure 4: 3-phase Delta, 3-wire
Figure 1: 1-phase, 2-wire
Figure 2: 2-phase, 3-wire
Figure 3: 3-phase Wye, 4-wire
Figure 5: 3-phase High-Leg Delta, 4-wire
Note: high-leg orange must be
phase
A
3-
pole
circuit breaker
A B
B
C
C
N
N
G
N
G
SPD
A
C
B
G
N
Earth
ground
Xo
bond
2-pole
circuit breaker
SPD
L1
L2
G
N
Earth
ground
Xo
bond
L1
N
L2
N
G
L1
L2
N
G
1-pole
circuit breaker
SP D
G
N
Earth
ground
Xo
bond
L1
L1
N
N
G
N
G
L
3-
pole
1
circuit breaker
SPD
Earth
ground
Xo
bond
B
N
C
A
N
G
N
G
A
B
C
G
N
A B C
3-pole
circuit breaker
B
C
A
N
G
SPD
A
B
C
G
A B C
G
Earth
ground
4
OVRHT3 SERIES AND OVRHS3U SERIES
SU R G E P R OT EC T I V E D E V I C E S
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.
OVRHT3B mounting
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.
Relay contacts shown in the relaxed position
(protector alarm or loss of power).
Note: Maximum torque on terminals is 10 in-lbs.
RE
M
OT
E
AL
AR
M
1
2
3
1
2
3
Protector
Service Panel Side
N
G
Electrical Service Entry
Surge
Protector
Service
Panel Side
Mounting
Surface
Ground
N
G
L
Optional
Circuit
Breaker
Neutral
bars
Optional
circuit breaker
N
G
Surge protector
Line wire
OVRHT3C mounting
OVRHS3U mounting
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.
—
Electrification Products
5900 Eastport Boulevard
Richmond, VA 23231-4453 USA
Tel: +1 800 292 3739
Fax: +1 804 236 4047
abb.com
© Copyright 2017 Thomas and Betts Power Solutions, LLC. All rights reserved.
Specifications subject to change without notice.
PN: 750-0
122-0
0
8 A0
0
09
0
6
17
Locknut
75
0-0
19
8
-0
0
1-
10
.2
0
22
—
We reserve the right to make technical
changes or modify the contents of this
document without prior notice. With regard
to purchase orders, the agreed particulars
shall prevail. ABB Inc. does not accept any
responsibility whatsoever for potential
errors or possible lack of information in
this document.
We reserve all rights in this document
and in the subject matter and illustrations
contained therein. Any reproduction or
utilization of its contents – in whole or in
parts – is forbidden without prior written
consent of ABB Inc. Copyright© 2022 ABB.
All rights reserved.
—
USA
ABB Inc.
305 Gregson Drive
Cary, NC 27511
(888) 385-1221
electrification.us.abb.com/
products/surge-protective-devices
3
OVRHS3U401201P
OVRHS3U402401P
OVRHT3B(C)501201P
OVRHT3B(C)502401P
OVRHT3B(C)502771P
OVRHT3B(C)504801P
OVRHS3U401202S
OVRHT3B(C)501202S
OVRHT3B(C)502402S
OVRHS3U402083Y
OVRHS3U402773Y
OVRHS3U402303Y
OVRHT3B(C)501203Y
OVRHT3B(C)502203Y
OVRHT3B(C)502303Y
OVRHT3B(C)502403Y
OVRHT3B(C)502773Y
OVRHT3B(C)503473Y
OVRHT3B(C)502403H
OVRHS3U402403D
OVRHS3U404803D
OVRHT3B(C)502403D
OVRHT3B(C)503803D
OVRHT3B(C)504003D
OVRHT3B(C)504153D
OVRHT3B(C)504803D
OVRHT3B(C)506003D
Figure 4: 3-phase Delta, 3-wire
Figure 1: 1-phase, 2-wire
Figure 2: 2-phase, 3-wire
Figure 3: 3-phase Wye, 4-wire
Figure 5: 3-phase High-Leg Delta, 4-wire
Note: high-leg orange must be
phase
A
3-
pole
circuit breaker
A B
B
C
C
N
N
G
N
G
SPD
A
C
B
G
N
Earth
ground
Xo
bond
2-pole
circuit breaker
SPD
L1
L2
G
N
Earth
ground
Xo
bond
L1
N
L2
N
G
L1
L2
N
G
1-pole
circuit breaker
SP D
G
N
Earth
ground
Xo
bond
L1
L1
N
N
G
N
G
L
3-
pole
1
circuit breaker
SPD
Earth
ground
Xo
bond
B
N
C
A
N
G
N
G
A
B
C
G
N
A B C
3-pole
circuit breaker
B
C
A
N
G
SPD
A
B
C
G
A B C
G
Earth
ground
3
OVRHS3U401201P
OVRHS3U402401P
OVRHT3B(C)501201P
OVRHT3B(C)502401P
OVRHT3B(C)502771P
OVRHT3B(C)504801P
OVRHS3U401202S
OVRHT3B(C)501202S
OVRHT3B(C)502402S
OVRHS3U402083Y
OVRHS3U402773Y
OVRHS3U402303Y
OVRHT3B(C)501203Y
OVRHT3B(C)502203Y
OVRHT3B(C)502303Y
OVRHT3B(C)502403Y
OVRHT3B(C)502773Y
OVRHT3B(C)503473Y
OVRHT3B(C)502403H
OVRHS3U402403D
OVRHS3U404803D
OVRHT3B(C)502403D
OVRHT3B(C)503803D
OVRHT3B(C)504003D
OVRHT3B(C)504153D
OVRHT3B(C)504803D
OVRHT3B(C)506003D
Figure 4: 3-phase Delta, 3-wire
Figure 1: 1-phase, 2-wire
Figure 2: 2-phase, 3-wire
Figure 3: 3-phase Wye, 4-wire
Figure 5: 3-phase High-Leg Delta, 4-wire
Note: high-leg orange must be
phase
A
3-
pole
circuit breaker
A B
B
C
C
N
N
G
N
G
SPD
A
C
B
G
N
Earth
ground
Xo
bond
2-pole
circuit breaker
SPD
L1
L2
G
N
Earth
ground
Xo
bond
L1
N
L2
N
G
L1
L2
N
G
1-pole
circuit breaker
SP D
G
N
Earth
ground
Xo
bond
L1
L1
N
N
G
N
G
L
3-
pole
1
circuit breaker
SPD
Earth
ground
Xo
bond
B
N
C
A
N
G
N
G
A
B
C
G
N
A B C
3-pole
circuit breaker
B
C
A
N
G
SPD
A
B
C
G
A B C
G
Earth
ground
3
OVRHS3U401201P
OVRHS3U402401P
OVRHT3B(C)501201P
OVRHT3B(C)502401P
OVRHT3B(C)502771P
OVRHT3B(C)504801P
OVRHS3U401202S
OVRHT3B(C)501202S
OVRHT3B(C)502402S
OVRHS3U402083Y
OVRHS3U402773Y
OVRHS3U402303Y
OVRHT3B(C)501203Y
OVRHT3B(C)502203Y
OVRHT3B(C)502303Y
OVRHT3B(C)502403Y
OVRHT3B(C)502773Y
OVRHT3B(C)503473Y
OVRHT3B(C)502403H
OVRHS3U402403D
OVRHS3U404803D
OVRHT3B(C)502403D
OVRHT3B(C)503803D
OVRHT3B(C)504003D
OVRHT3B(C)504153D
OVRHT3B(C)504803D
OVRHT3B(C)506003D
Figure 4: 3-phase Delta, 3-wire
Figure 1: 1-phase, 2-wire
Figure 2: 2-phase, 3-wire
Figure 3: 3-phase Wye, 4-wire
Figure 5: 3-phase High-Leg Delta, 4-wire
Note: high-leg orange must be
phase
A
3-
pole
circuit breaker
A B
B
C
C
N
N
G
N
G
SPD
A
C
B
G
N
Earth
ground
Xo
bond
2-pole
circuit breaker
SPD
L1
L2
G
N
Earth
ground
Xo
bond
L1
N
L2
N
G
L1
L2
N
G
1-pole
circuit breaker
SP D
G
N
Earth
ground
Xo
bond
L1
L1
N
N
G
N
G
L
3-
pole
1
circuit breaker
SPD
Earth
ground
Xo
bond
B
N
C
A
N
G
N
G
A
B
C
G
N
A B C
3-pole
circuit breaker
B
C
A
N
G
SPD
A
B
C
G
A B C
G
Earth
ground
3
OVRHS3U401201P
OVRHS3U402401P
OVRHT3B(C)501201P
OVRHT3B(C)502401P
OVRHT3B(C)502771P
OVRHT3B(C)504801P
OVRHS3U401202S
OVRHT3B(C)501202S
OVRHT3B(C)502402S
OVRHS3U402083Y
OVRHS3U402773Y
OVRHS3U402303Y
OVRHT3B(C)501203Y
OVRHT3B(C)502203Y
OVRHT3B(C)502303Y
OVRHT3B(C)502403Y
OVRHT3B(C)502773Y
OVRHT3B(C)503473Y
OVRHT3B(C)502403H
OVRHS3U402403D
OVRHS3U404803D
OVRHT3B(C)502403D
OVRHT3B(C)503803D
OVRHT3B(C)504003D
OVRHT3B(C)504153D
OVRHT3B(C)504803D
OVRHT3B(C)506003D
Figure 4: 3-phase Delta, 3-wire
Figure 1: 1-phase, 2-wire
Figure 2: 2-phase, 3-wire
Figure 3: 3-phase Wye, 4-wire
Figure 5: 3-phase High-Leg Delta, 4-wire
Note: high-leg orange must be
phase
A
3-
pole
circuit breaker
A B
B
C
C
N
N
G
N
G
SPD
A
C
B
G
N
Earth
ground
Xo
bond
2-pole
circuit breaker
SPD
L1
L2
G
N
Earth
ground
Xo
bond
L1
N
L2
N
G
L1
L2
N
G
1-pole
circuit breaker
SP D
G
N
Earth
ground
Xo
bond
L1
L1
N
N
G
N
G
L
3-
pole
1
circuit breaker
SPD
Earth
ground
Xo
bond
B
N
C
A
N
G
N
G
A
B
C
G
N
A B C
3-pole
circuit breaker
B
C
A
N
G
SPD
A
B
C
G
A B C
G
Earth
ground
—
Figure 1: 1-phase, 2-wire
OVRHT3D501201P
OVRHT3D502401P
OVRHT3D502771P
OVRHT3D504801P
—
Figure 2: 2-phase, 3-wire
OVRHT3D501202S
OVRHT3D502402S
—
Figure 3: 3-phase Wye, 4-wire
OVRHT3D501203Y
OVRHT3D502203Y
OVRHT3D502303Y
OVRHT3D502403Y
OVRHT3D502773Y
OVRHT3D503473Y
—
Figure 4: 3-phase Delta, 3-wire
OVRHT3D502403D
OVRHT3D503803D
OVRHT3D504003D
OVRHT3D504153D
OVRHT3D504803D
OVRHT3D506003D
—
Figure 5: 3-phase High-Leg Delta, 4-wire
OVRHT3D502403H
—
OVRHT3D mounting
Electrical connections
