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How to Specify a 7XXX Suffix Hardware Code

Procedure

(Example) To obtain the 7000 code suffix number for a 10 kV duty cycle rated PDV65-Optima arrester equipped with a line terminal, wire clamp, insulating base bracket, NEMA crossarm hanger for a 4 x 5 crossarm and a ground lead isolator with terminal nut, follow this procedure:

  • Step 1 - The catalog number of the basic 10 kV PDV65-Optima arrester is 217259.
  • Step 2 - The 72XX code in the table below specifies the top terminal and wire clamp.
  • Step 3 - The 7X2X code specifies the insulating base bracket and 4 x 5 NEMA crossarm hanger.
  • Step 4 - The 7XX4 code specifies the ground lead isolator, terminal nut and nut.
  • Step 5 - Combine the three suffix digits following the 7 in their correct order gives us the suffix code: 7224.
  • Step 6 - Order the arrester by complete catalog number 2172597224.

Notes:

  1. The ground isolator identified in codes 7003, 7004 and 7005 is an integral part of the insulating base bracket. The color for the insulating base bracket/ground lead isolator assembly is ANSI-70 gray.
  2. Code 7030 identifies the insulating base bracket/transformer mounting bracket combination. The transformer mounting bracket used in code 7030 is Ohio Brass part number 2730664004 (= 8.4 kV MCOV) and 2730254004 (≥ 10.2 kV MCOV). A drawing of the 273066 bracket is included on page 12 to assist in applying this arrester. Contact your HPS representative for further information.
  3. All terminals are solderless, clamp type, suitable for conductor sizes from No. 6 AWG solid to No. 2 AWG stranded. If the spacing of the mounting holes on mounting brackets listed are not suitable for the intended application, other mounting brackets are available and in these cases, the HPS sales representative should be consulted.

For all PDV100 & PDV65 Optima Arresters:

The 73XX code will be the only one with a cap. The 74XX code is not available since the Optima only has one cap style which is the newest design.

For all PVR Optima Arresters Cap 73XX and 74XX are available.

TABLE A TOP TERMINAL HARDWARE

71XX
3/8" Stud (No Option)
72XX
Nut & Wire \Clamp
73XX
Nut, Wire Clamp & Protective Cap (One Slot) (Optima)
74XX
Nut, Wire Clamp & Protective Cap (One Hole) (PVR only)
75XX
Nut, Wire Clamp, Protective Cap (One Slot), & 18" Wire Lead
76XX
Flipper Fuse Assembly Nut & Wire Clamp
77XX
Nut, Wire Clamp, 3-Piece Protective Cap

TABLE B MOUNTING HARDWARE

7X0X
No Bracket
No Isolator
7X1X
Insulated Base Bracket with Isolator
7X2X
Insulated Base Bracket with Isolator & NEMA 4x5 X-Arm Bracket
7X3X
Insulated Base Bracket with Isolator and Transformer Bracket
7X4X
Insulated Base Bracket with Isolator and NEMA Angle Bracket
7X5X
Insulated Base Bracket with Isolator & NEMA 6x6 X-Arm Bracket
7X6X
Metal Base Mounting Strap
7X7X
Metal Base Mounting Strap and NEMA 4x5 X-Arm Bracket

TABLE C LOWER TERMINAL HARDWARE

7XX1*
3/8" Stud (No Option)
7XX2*
Nut, Washers & Threaded Terminal Nut
7XX3
Isolator, Nut, Ground Strap Washer
7XX4
Isolator, Nut, Washer & Threaded Terminal Nut
7XX5
Isolator, Nut, Protective Cap (2 Slot), Washer & Threaded Terminal Nut
7XX6*
Ground Strap, Nut, Washers & Threaded Terminal Nut
7XX7*
Nut, Washers & Threaded Terminal Nut
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