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Protection and safety
Data & signal protection
OVR D Series

OVR D Series - Technical specification
Electrical specification OVR 06D OVR 15D OVR 30D OVR 50D OVR 110D
ABB order code 7TCA085400R0288 7TCA085400R0349 7TCA085400R0351 7TCA085400R0352 7TCA085400R0347 5
Nominal voltage (1) 6 V 15 V 30 V 50 V 110 V
Maximum working voltage Uc (RMS/DC) (2) 5 V/7.79 V 13 V/19 V 26 V/37.1 V 41 V/58 V 93 V/132 V
Current rating (signal) 300 mA
In-line resistance (per line ±10%) 9.4 Ω 9.4 Ω 9.4 Ω 9.4 Ω 9.4 Ω
Bandwidth (-3 dB 50 Ω system) 800 kHz 2.5 MHz 4 MHz 6 MHz 9 MHz
Transient specification OVR 06D OVR 15D OVR 30D OVR 50D OVR 110D
Let-through voltage (all conductors)(3) Up
C2 test 4 kV 1.2/50 μs, 2 kA 8/20 μs to 12.0 V 25.0 V 44.0 V 78.0 V 155 V
BS EN/EN/IEC 61643-21
C1 test 1 kV, 1.2/50 μs, 0.5 kA 8/20 μs to 11.5 V 24.5 V 43.5 V 76.0 V 150 V
BS EN/EN/IEC 61643-21
B2 test 4 kV 10/700 μs to BS EN/EN/ 10.0 V 23.0 V 42.5 V 73.0 V 145 V
IEC 61643-21
5 kV, 10/700 μs (4) 10.5 V 23.8 V 43.4 V 74.9 V 150 V
Maximum surge current
D1 test 10/350 μs – Per signal wire 2.5 kA
to BS EN/EN/IEC – Per pair 5 kA
61643-21
8/20 μs to ITU-T – Per signal wire 10 kA
K.45:2003, IEEE – Per pair 20 kA
C62.41.2:2002
Mechanical specification OVR 06D OVR 15D OVR 30D OVR 50D OVR 110D
Temperature range -40 to +80 °C
Connection type Screw terminal - maximum torque 0.5 Nm
Conductor size (stranded) 2.5 mm 2
Earth connection M6 stud
Case material FR Polymer UL-94 V-0
Weight – Unit 0.08 kg
– Packaged (per 10) 0.85 kg
Dimensions See diagram below

54 mm
38 mm
105 mm
M4 clearance

120 mm
19 mm
109 mm
M4 clearance
(1) Nominal voltage (RMS/DC or AC peak)
measured at < 5 μA (OVR 15D, OVR 30D,
OVR 50D, OVR 110D) and < 200 μA (OVR 06D)
(2) Maximum working voltage (RMS/DC or AC peak)
measured at < 1 mA leakage (OVR 15D, OVR 30D,
OVR 50D, OVR 110D), < 10 mA (OVR 06D)
(3) The maximum transient voltage let-through of the
protector throughout the test (±10%), line to line &
line to earth, both polarities. Response time < 10 ns
(4) Test to IEC 61000-4-5:2006, ITU-T (formerly
CCITT) K.20, K.21 and K.45, Telcordia
GR-1089-CORE, Issue 2:2002, ANSI TIA/EIA/
IS-968-A:2002 (formerly FCC Part 68)