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Protection and safety
Mains power protection
OVR 240-16A

OVR 240-16A - Technical specification
Electrical specification OVR 240-16A
ABB order code 7TCA085460R0361 5
Nominal voltage - Phase-Neutral Uo (RMS) 240 V
Maximum voltage - Phase-Neutral Uc (RMS) 280 V
Working voltage (RMS) 200-280 V
Frequency range 47-63 Hz
Current rating (supply) 16 A or less
Max. back-up fuse (see installation instructions) ≤ 16 A
Leakage current (to earth) < 0.5 mA
Transient specification OVR 240-16A
Type 2 (BS EN/EN), Class II (IEC)
Nominal discharge current 8/20 μs (per mode) In 5 kA
Let-through voltage Up at In (1) 750 V
Maximum discharge current Imax (per mode) (2) 10 kA
Type 3 (BS EN/EN), Class III (IEC)
Let-through voltage at Uoc of 6 kV 1.2/50 μs and 600 V
Isc of 3 kA 8/20 μs (per mode) (1, 3)
Electrical specification OVR 240-16A
Temperature range -40 to +80 °C
Connection type Screw terminal - maximum torque 0.5 Nm
Conductor size (stranded) 4 mm 2
Earth connection Via M6 stud or earth terminal -maximum torque 0.5 Nm
Degree of protection (IEC 60529) IP20
Case material Steel
Weight – Unit 0.23 kg
– Packaged 0.25 kg
Dimensions See diagrams below

109 mm centrally 54 mm
38 mm M4 clearance 26 mm 39 mm

105 mm
M3 clearance 120 mm

120 mm
Depth:
56 mm
108 x 50 mm
80 mm
M4 clearance
25 mm max.
25 mm

(1) The maximum transient voltage let-through of
the protector throughout the test (±10%), phase
to neutral, phase to earth and neutral to earth
(2) The electrical system, external to the unit,
may constrain the actual current rating
achieved in a particular installation
(3) Combination wave test within IEC/BS EN 61643,
IEEE C62.41-2002 Location Cats C1 & B3, SS
555:2010, AS/NZS 1768-2007, UL 1449 mains wire-in