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          —
          Protection and safety
          Specific systems protection
          OVR RF Series


          OVR RF Series - Technical specification
          Electrical specification           OVR RF 111421          OVR RF AA1421         OVR RF 441421
          Gas Discharge Tube voltage         350 V                                                                     5
          Maximum working voltage Uc (RMS)   200 V
          Characteristic impedance           50 Ω
          Bandwidth                          DC-2.7 GHz
          Voltage standing wave ratio        ≤ 1.1
          Insertion loss over bandwidth      ≤ 0.1 dB
          Maximum power  (1)                 650 W
          Transient specification            OVR RF 111421          OVR RF AA1421         OVR RF 441421
          Let-through voltage (all conductors)   Up
                                    (2)
          C2 test 4 kV 1.2/50 μs, 2 kA 8/20 μs to    < 800 V
          BS EN/EN/IEC 61643-21
          C1 test 1 kV 1.2/50 μs, 0.5 kA 8/20 μs to    < 650 V
          BS EN/EN/IEC 61643-21
          B2 test 4 kV 10/700 μs to BS EN/EN/IEC 61643-21 < 550 V
          5 kV, 10/700 μs  (3)               < 580 V
          Maximum surge current  (4)
          D1 test 10/350 μs to BS EN/EN/IEC 61643-21  2.5 kA
          8/20 μs to ITU-T K.45:2003, IEEE C62.41.2:2002  20 kA
          Mechanical specification           OVR RF 111421          OVR RF AA1421         OVR RF 441421
          ABB order code                     7TCA085450R0065        7TCA085450R0063       7TCA085450R0066
          Temperature range                  -40 to +80 °C                                       24 mm
                                                                                                 24 mm
          Connection type                    N female               7⁄16 DIN female       BNC female
          Conductor size (stranded)          Via mounting fixtures                            40 mm
                                                                                              40 mm         17.3 mm
          Case Material                      Aluminium body, nickel plated. Brass connectors, white bronze plated
                                                                                                            17.3 mm
          Weight            – Unit           120 g                  190 g                 90 g       58 mm
                                                                                                 24 mm 58 mm
                            – Packaged       140 g                  210 g                 110 g  24 mm
          Dimensions                         See diagram below
                                                                                            40 mm
                                                                                            40 mm             17.3 mm
                                                                                                              17.3 mm
                                                                                                     78 mm
          OVR RF BK1 (ABB order code: 7TCA085400R0416)                   24 mm                   24 mm 78 mm
          Straight mounting bracket, 53 x 26.3 x 3 mm                      24 mm                 24 mm
          2 x M4 clearance mounting holes, 16.3 mm apart
                                                                      40 mm                   40 mm
          OVR RF BK2  (ABB order code: 7TCA085400R0064 )                40 mm       17.3 mm   40 mm         17.3 mm
          90° mounting bracket, 33 x 26.3 x 3 mm, 20 x 26.3 x 3 mm                    17.3 mm        56 mm  17.3 mm
          2 x M4 clearance mounting holes, 16.3 mm apart, 14 mm from fold line  58 mm
                                                                         24 mm  58 mm                56 mm  M3 threaded
                                                                           24 mm                 24 mm    channel,
          OVR RF BK3 (ABB order code: 7TCA085400R0412)                                           24 mm    M3 threaded
                                                                                                          5 mm deep
                                                                                                          channel,
          90° mounting bracket, 50 x 24 x 1.5 mm, 60 x 24 x 1.5 mm  40 mm                       25.8 mm  19.3 mm
                                                                                                          5 mm deep
          2 x M5 clearance mounting holes, 40 mm apart                40 mm                     25.8 mm
                                                                                      17.3 mm            19.3 mm
                                                                                                          M3 threaded
                                                                                        17.3 mm   18 mm   channel,
          OVR RF BK4 (ABB order code: 7TCA085400R0413)                       78 mm                18 mm   M3 threaded
                                                                                                          5 mm deep
                                                                                                          channel,
          90° quad mounting bracket, 50 x 24 x 1.5 mm, 210 x 24 x 1.5 mm  24 mm  78 mm                    5 mm deep
          5 x M5 clearance mounting holes, various spacings                24 mm
          Mounting brackets supplied with screws for fixing to protector
                                                                      40 mm
                                                                        40 mm
                                                                                    17.3 mm
                                                                                      17.3 mm
          (1)   Power levels have been de-rated to allow for real life
                                                                             56 mm
           ‘worst case’ conditions, calculated with VSWR as 2:1                56 mm
          (2)   The maximum transient voltage let-through of             24 mm   M3 threaded
                                                                                 channel,
                                                                                   M3 threaded
           the protector throughout the test (±10%) (±10%).                24 mm  5 mm deep
                                                                                   channel,
           Response time < 10 ns. This let-through voltage              25.8 mm  19.3 mm
                                                                                   5 mm deep
           represents a deviation                                         25.8 mm  19.3 mm
            from the applied signal voltage,                             18 mm   M3 threaded
           present at the time of the test                                 18 mm  channel,
                                                                                   M3 threaded
                                                                                   channel,
          (3)   Test to IEC 61000-4-5:2006, ITU-T (formerly                      5 mm deep
                                                                                   5 mm deep
           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)
          (4)   The installation and connections external to the
           protector may limit the capability of the protector
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