Current-limiting fuse mounts

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Dinah Hoover
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Fusing quipment atalog ata 132046N Supersedes November 2015 urrent-limiting fuse mounts OOPR POWR SRIS eneral aton provides overload protection for all indoor and underground cable distribution

They are available in single-unit clip or hinge-style, parallel-unit clip-style, channel based tandem, and single-phase or three-phase feed-through hinge-style mountings.

other fusing equipment. For additional mounting arrangements contact your aton representative.

The clip-style mount is available in a single or parallel unit mount to accommodate your fusing system design (shown upper left).

1 Fusing quipment atalog ata N Supersedes November 2015 urrent-limiting fuse mounts OOPR POWR SRIS eneral aton provides overload protection for all indoor and underground cable distribution systems with its ooper Power series current-limiting fuse mountings. They are available in single-unit clip or hinge-style, parallel-unit clip-style, channel based tandem, and single-phase or three-phase feed-through hinge-style mountings. Indoor and underground mountings and aton's fusing characteristics make possible a wide variety of sectionalizing, switching, and protective schemes, with compactness and safety unattainable with other fusing equipment. For additional mounting arrangements contact your aton representative. lip-style mounting aton's ooper Power series basic NX, LX, and X-Limiter fuses are all designed to mount in an aton clip-style mounting, where there is no switching or loadbreaking required. The clip-style mount is available in a single or parallel unit mount to accommodate your fusing system design (shown upper left). Refer to catalog section N for more detailed information on NX fuses, catalog section N for LX fuses and catalog section N for X-Limiter fuses. Hinge-style mounting The NX hinge-style fuses with an rc-strangler loadbreaking device or NX rc-strangler switchblade fit in a hinge-style mounting (shown upper right). Refer to catalog section N for more detailed information on the NX hingestyle fuse with an rc-strangler loadbreaking device or rc-strangler switchblade. Single- and three-phase frame mounting These mountings have the same hinge and clip contact assemblies and terminal pads as described in the section on open channel-based mountings. The frame mountings consist of a flat backing plate, enelex insulating barriers, and porcelain support insulators with hinge and clip contact assemblies. oth single and three-phase styles are available. Fuses and switchblades can be inserted, opened, and removed easily and safely in either the frame mountings with a standard hookstick or aton's ooper Power series universal switchstick head. (See Figure 6 for drawing and dimensions.)

2 atalog ata N urrent-limiting fuse mounts hannel-based tandem mounting hannel-based tandem mountings are available in several styles to accommodate a variety of switching and fusing system designs. For applications requiring no switching or loadbreaking capability, the basic clip-style mounting is available for either single or parallel fuses. mounting with a hinge at the bottom to provide the switching or loadbreaking capability required is available for NX fuse with rc-strangler loadbreaking, and NX rc-strangler switchblades. tandem unit that holds an rc-strangler switch and a clip-mounted fuse is also available in various ratings. lip- and hinge-style mounting features Silver-plated copper contacts with stainless steel backup springs ensure cool operation etent on the clip contacts holds the fuse firmly closed rugged, close-in guide prevents deformation of the mounting contacts when the fuse is closed or opened and prevents closing if the operator forgets to recock the rc-strangler sleeve The pinned bolt securely fastens the contact to insulator support and prevents the contacts from rotating tin-plated copper terminal pad on single-unit mountings is furnished with a 3/8-inch bronze bolt to accommodate spade terminals copper or tin-plated terminal pad on parallel mountings accommodates NM standard two-bolt connectors or accessory clamp-type connectors. Hinge-style mountings can be ordered for either a 110 or a 180 opening. ( 110 opening is recommended for mountings to be installed at shoulder height or lower.) The channel base is strong and easy to install. Mounting holes and slots accommodate 1/2-inch bolts. The base conforms to the vertical mounting centers for rails in Transclosure housings and other enclosures. alvanized, formed steel hinges firmly support the fuse and permit the easy removal of the fuse from the mounting with either a standard hookstick or with a universal switchstick head (see Figure 6). rubber bumper prevents pullring breakage caused by excessive close-in pressure with a switchstick pplication ll channel-based and most frame mountings for hinged fuses or switchblades are available with one of two hinge constructions: One allows 110 swingdown on the opening; the other, a 180 swingdown. xact swingdown dimensions can be determined from dimensional information section. Operator position, as well as clearances, are essential when considering which hinge style is suitable. Units providing a 110 opening are recommended for most installations. Mountings that allow fuses or switchblades to swing down 180 are recommended where the hinge level will be above the shoulder height of the operator. This enables easy removal of an opened switch or fuse with a standard-head hook-stick. The use of mountings with 180 hinges below this height prevents the removal of a fuse or a switchblade with a hookstick. ll channel-based and frame mountings for hinge-style fuses and switchblades are available in two hinge-to-upper-contact spacings. Mountings with the longer spacing (ode No. 2), available with IL ratings of 95 or 125 kv, accommodates 15.5 kv fuses and the long 15.5 kv switchblades. Mountings with the shorter spacing (ode No. 1), rated 95 kv IL, accommodate 4.3, 5.5, or 8.3 kv fuses and 8.3 kv or short 15.5 kv switchblades. For normal 15 kv switch application the short 15.5 kv switchblade in a mounting with the shorter hinge-to-upper-contact spacing is recommended. Long 15.5 kv switchblades in mountings with the longer spacing can be used when interchangeability with 15.5 kv fuses is desired. Mountings for clip-style fuses are available in five clip-to-clip spacings. Table 1 shows the code numbers for fuses and switchblades to simplify ordering and application, assuring the correct fuses or switchblades to fit the mounting selected. These codes are governed by two factors style of mounting and size. Table 1. oding System Mounting for Fuses and rc-stranglers Rating roup Features Hinge-Mounting 8.3 kv and elow (Shorter Spacing) 110 or 180 Opening kv (Longer Spacing) 110 or 180 Opening 2 lip-mounting ll 4.3 and 5.5 kv NX NX ( ) 4 ll 4.3 and 5.5 kv X-Limiter kv X-Limiter (3-40 and 50 W) 4 ll 8.23 kv LX kv NX ( ) kv NX ( ) kv X-Limiter ( ) kv X-Limiter (3-40 and 50 W) 5 ll 15.5 kv LX kv NX ( ) 6 ll 23 kv NX kv X-Limiter ( ) 6 23 kv X-Limiter (3-40 and 50 W) 6 ll 23 kv LX 6 23 kv X-Limiter ( ) 9 lip-mounting (High-Voltage) 27 kv NX (6-50 ) 9 38 kv NX (6-50 ) 10 Mounting ode 2

3 urrent-limiting fuse mounts atalog ata N lip-style Mountings Table 2. Ratings and imensions of hannel-ased Mountings for lip-style Fuses (See Figures 1 and 2) Maximum Mounting imensions in. (mm)** Voltage Rating (kv) IL (kv) ode Number* atalog Number F H Single Fuse, Single Pole F (448) (283) 9.75 (248) (359) 5.00 (127) 3.88 (99) 1.50 (38) F (556) (391) 9.75 (248) (467) 9.00 (229) 4.63 (117) 1.50 (38) F (556) (391) (283) (467) 9.00 (229) 4.63 (117) 1.50 (38) F (627) (462) 9.75 (248) (538) (300) 4.63 (117) 1.50 (38) F (627) (462) 9.75 (248) (538) 8.31 (211) 6.44 (164) 1.50 (38) F (627) (462) (283) (538) 8.31 (211) 6.44 (164) 1.50 (38) F (627) (462) (283) (538) (300) 4.63 (117) 1.50 (38) F (627) (462) (283) (538) (300) 4.63 (117) 1.50 (38) F (627) (462) (318) (538) (300) 4.63 (117) 1.50 (38) F (878) (713) (332) (814) (445) 7.25 (184) 1.25 (32) F (1081) (916) (332) (1018) (635) 7.50 (191) 1.25 (32) Parallel Fuse, Single Pole F1K (527) (279) 9.43 (240) 14.0 (356) 4.25 (108) 6.25 (159) 4.88 (124) 1.50 (38) F1K (638) (391) 9.43 (240) (467) 8.62 (219) 6.25 (159) 4.88 (124) 1.50 (38) F1K (638) (391) (290) (467) 8.62 (219) 6.25 (159) 4.88 (124) 1.50 (38) F1K (710) (462) 9.43 (240) (543) (291) 7.69 (195) 4.88 (124) 1.50 (38) F1K (710) (462) (290) (543) (291) 7.69 (195) 4.88 (124) 1.50 (38) F3K (710) (462) (353) (564) (291) 7.69 (195) 5.25 (133) 2.0 (51) F3K (960) (713) (353) (814) (445) 7.69 (195) 7.25 (184) 2.0 (51) F3K (1164) (916) (353) (1018) 25.0 (635) 7.69 (195) 7.50 (191) 2.0 (51) * ode number of mounting must match code number of fuse. ** Refer to Figures 1 and 2 for dimensional drawings. 3.25" (82.6 mm) I HOL I HOL 2.75" (69.9 mm) H x 2.0" (50.8 mm) SLOT HNNL S 3.0" (76.2 mm) HNNL S 3.25" (82.6 mm).375" I OLT OTH NS (9.53 mm) Figure 1. Single fuse, single-pole mounting (F1 series) for clip-mounted fuses (refer to Table 2 for dimensions). NNote: hannel is used on F16 and F17; all other F1 series employ channel base. 3

4 atalog ata N urrent-limiting fuse mounts lip-style mountings 4.88" (124 mm) I HOL I HOL 2.0" (50.8 mm) H F 0.56" (14.2 mm) x 2 SLOT HOLS FOR 500 MM TRMINL LMPS 1.41" (35.8 mm) HNNL S 3.0" (76.2 mm) 3.25" (82.6 mm) 0.88" (22.4 mm) HNNL S 0.5" OLT OTH NS (12.7 mm) SINL-POL PRLLL MOUNTIN FOR F1K SRIS IS TH SM XPT THT MOUNTIN HS TWO INSULTORS. 1.75" (44.5 mm) Figure 2. Parallel fuse, single-pole mounting for clip-mounted fuses F1K and F3K series (refer to Table 2 for dimensions) (F3K shown). Hinge-style mountings Table 3. Ratings and imensions of hannel-ased Mountings for Hinge-Style Fuses (with rc-strangler Loadbreaking evice or rc-strangler Switchblade) Maximum Voltage (kv) IL (kv) Mounting ode Number* atalog No. 110 Open imensions in. (mm)** 180 Open F Single-Pole Mounting F11 F (464) (283) 14.0 (356) 5.0 (127) 9.75 (248) 8.69 (221) F12 F (572) (391) (467) 9.00 (229) 9.75 (248) 8.69 (221) F (572) (391) (467) 9.00 (229) (283) 10.0 (256) F (572) (391) (467) 9.00 (229) (318) 11.4 (291) Parallel-Pole Mounting F1K (530) (283) 14.0 (356) 4.25 (108) 9.43 (240) F1K (641) 15.5 (394) (467) 8.62 (219) 9.43 (240) F1K (641) 15.5 (394) (467) 8.62 (219) 11.4 (290) * ode number of mounting must match code number of fuse. ** See Figure 3 for dimensional drawing. 4

5 urrent-limiting fuse mounts atalog ata N 3.88" (98.6 mm) 0.437" (11 mm) x 0.875" (22.2 mm) 3.25" (82.6 mm) RUR UMPR 2.75" (69.9 mm) 0.38" (9.7 mm) I OLT OTH NS 0.56" (14.2 mm) I HOL 1.44" (36.6 mm) LRN FROM ONTT LIP TO ROUN IN NY IRTION FOR R- STRNLR SLV OPRTION: 15.5 KV 8" 8.3KV 6" x 2 SLOT 3.25" (82.6 mm) F 0.88" (22.4 mm) SINL-POL, SINL-PHS HIN-STYL MOUNTIN (F1 SRIS). Figure 3. Single-pole, single-phase hinge-style mounting F1 series (refer to Table 3 for dimensions). hannel-based tandem mountings Table 4. Ratings and imensions of hannel-ased Tandem Mountings (See Figures 8 and 9 for imensional rawings) Mounting ode Number* imensions in. (mm)** Voltage IL Rating (kv) (kv) Switch Fuse atalog Number With Switchblade Mounted bove Fuse Single-Unit Mounting FJ (808) (405) (764) (437) FJ (880) (476) (835) 20.0 (508) FJ (880) (476) (835) 20.0 (508) Parallel-Units Mounting FJ1K (745) 11.0 (279) (700) (324) FJ1K (854) (389) (810) (433) FJ1K (926) (461) (881) (505) With Fuse Mounted bove Switchblade Single-Unit Mounting FJ (927) (454) (848) 17.5 (445) FJ (998) (526) (919) 20.0 (508) Parallel-Units Mounting FJ3K (816) 13.5 (343) 29.0 (737) 15.0 (381) FJ3K (927) (454) (848) 17.5 (445) FJ3K (999) (526) (919) 20.0 (508) * ode number of mounting must match code number of fuse or switchblade. ** Refer to Figures 4 and 5 for dimensional drawing. 5

6 atalog ata N urrent-limiting fuse mounts hannel-ased Tandem Mountings x 2" SLOT x 2" SLOT 12.81" (325 mm) 11.13" (283 mm) 0.56" (14.2 mm) I HOL 0.56" (14.2 mm) I HOL 4.06" (103 mm) 1.44" (36.6 mm) 3.0" (76.2 mm) 5.56" (141 mm) 2.25" (57.2 mm) 1.44" (36.6 mm) 3.0 (76.2 MM) MOUNTIN FOR TNM SWITH N PRLLL FUSS (FJ1K SRIS) 5.0" (127 mm) Figure 4. Tandem switch and single or parallel fuse mountings, FJ1K and FJ1 series (refer to Table 4 for dimensions). MOUNTIN FOR TNM SWITH N SINL FUS (FJ1 SRIS) 3.0" (76.2 mm) 1.5" (38.1 mm) 2.25" (57.2 mm) 3.0" (76.2 mm) 2.25" (57.2 mm) x 2" SLOT x 2" SLOT I HOL 5.56" (141 mm) 11.0" (279 mm) I HOL 9.94" (252.4 mm) 11.0" (279.4 mm) 2.25" (57.2 mm) 5.38" (137 mm) 9.94" (252 mm) 9.68" (246 mm) 1.44" (36.6 mm) 2.25" (57.2 mm) MOUNTIN FOR TNM SWITH N SINL FUSS (FJ3 SRIS) 5.56" (141 mm) 5.38" (137 mm) 9.43" (240 mm) 1.44" (36.6 mm) MOUNTIN FOR TNM SWITH N PRLLL FUSS (FJ3K SRIS) Figure 5. Tandem switch and single or parallel fuse mountings, FJ3 and FJ3K series (refer to Table 4 for dimensions). 6

7 urrent-limiting fuse mounts atalog ata N Universal switchstick head n accessory hook (refer to Figure 10 for drawing and dimensions) is available for universal switchsticks to provide easy installation and removal of a hinge-style fuse and switchblades " 2.031" 0.375" 1.25" 0.688" 0.563" 2.625" 3.13" 0.375" 0.375" Figure 6. Universal switchstick head (F13M1). 7

8 atalog ata N urrent-limiting fuse mounts Table 5. Ratings of Frame Mountings* Maximum esign Voltage (kv) IL (kv) escription Mounting ode Number* atalog Number 110 Opening 180 Opening F1F Three-phase, frame mounting 2 F1F F1F F11 F Single-phase, feed-through, common-latch frame mounting 1 F1F with five insulators 2 F F or Single-phase, feed-through, common-latch 1 F frame mounting with four insulators 1 F Single-phase, feed-through, common-latch frame mounting 2 F23 with four insulators Single-phase, feed-through, common-hinge frame mounting 1 F51 with three insulator (VI style) * Fuses or switchblades are not included in mountings and must be ordered separately. ** ode Number of mounting must match code number of fuse or switchblade. Refer to dimensional drawing for exact opening dimensions. Uses transformer bushing as remaining insulator required for center fuse support. Table 6. imensions of Frame Mountings (see Figures 11, 12, 13, and 14 for imensional rawings) atalog imensions in. (mm)* Number F H I J F1F (349) 3.5 (89) 3.63 (92) (338) (283) 24.0 (610) 8.94 (227) 7.8 (198) 12.0 (305) 5.13 (130) F1F (461) 8.5 (216) 3.31 (84) (452) 15.5 (394) 28.0 (711) 8.94 (227) 7.8 (198) 12.0 (305) 5.13 (130) F (349) 3.5 (89) 3.63 (92) (338) (283) 12.0 (305) 8.94 (227) 7.8 (198) 12.0 (305) 4.44 (113) F (349) 3.5 (89) 3.63 (92) (338) (283) 18.0 (457) 8.94 (227) 7.8 (198) 12.0 (305) 4.44 (113) F (461) 8.5 (216) 3.31 (84) (452) 15.5 (394) 12.0 (305) 8.94 (227) 7.8 (198) 12.0 (305) 4.44 (113) F (461) 8.5 (216) 3.31 (84) (452) 15.5 (394) 14.0 (356) (262) 9.2 (230) 14.0 (356) 6.44 (164) F (349) 3.5 (89) 3.63 (92) (338) (283) 12.0 (305) 8.94 (227) 7.8 (198) 4.44 (113) F (349) 3.5 (89) 3.63 (92) (338) (283) 14.0 (356) (262) 9.0 (229) 6.44 (164) F (461) 8.5 (216) 3.31 (84) (452) 15.5 (394) 14.0 (356) (262) 9.0 (229) 6.44 (164) F51 See Figure 10 for dimensional drawing. * See Figures 7, 8, 9 and 10 for dimensional drawings. 8

9 urrent-limiting fuse mounts atalog ata N Frame and box mountings LRN FROM ONTT SLIP TO ROUN IN NY IRTION FOR R-STRNLR SLV OPRTION: 15.5 KV 8" 8.3 KV 6" 5.88" (149 mm) 2.88" (73.2 mm) RUR UMPR 0.50" (12.7 mm) LRN TO MOUNTIN SURF FOR INSULTOR OLTS 3.25" (82.6 mm) 1.50" 0.56" (14.2 mm) MT SLOTS 14.0" (356 mm) F 1.31" (33.3 mm) 3.88" (98.6 mm) 2.75" (69.9 mm) J 5.13" (130 mm) 5.0" (127 mm) 0.25" (6.35 mm) RRIRS 15.5" (394 mm) 0.38" (9.7 mm) I OLT OTH NS I H 0.19" (4.8 mm) Figure 7. Three-phase frame mounting (F1F Series). 14.0" (356 mm) LRN FROM ONTT SLIP TO ROUN IN NY IRTION FOR R-STRNLR SLV OPRTION: 15.5 KV 8" 8.3 KV 6" 5.88" (149 mm) 0.50" (12.7 mm) LRN TO MOUNTIN SURF FOR INSULTOR OLTS 1.31" (33.3 mm) 0.56" (14.2 mm) MT SLOTS 1.50" 2.75" (69.9 mm) J 5.0" (127 mm) F 0.38" (9.7 mm) I OLTS OTH NS H 0.19" (4.8 mm) 3.88" (98.6 mm) 5.13" (130 mm) 15.5" (394 mm) 0.25" (6.4 mm) RRIRS SINL-PHS, OMMON-LTH, F-THROUH FRM MOUNTIN WITH FIV INSULTORS (F1 SRIS) I 2.0" (50.8 mm) Figure 8. Single-phase common latch feed-through mounting frame F1 series (Refer to Table 6 for dimensions). 9

10 atalog ata N urrent-limiting fuse mounts Frame and box mountings (continued) LRN FROM ONTT LIP TO ROUN IN NY IRTION FOR R-STRNLR SLV OPRTION 15.5 kv 8" 8.3 kv 6" 5.88" (149 mm) 0.50" (12.7 mm) learance to Mounting Surface for Insulator olts 1.31" (33.3mm) Front dge of Mounting Plate 1.5" I 2.75" (69.9 mm) 5.13" (130 mm) 0.56" (14.2.mm) Mtg Slots 3.88" (98.6 mm) 4.75" (121 mm) 10.0" (254 mm) 15.5" (394 mm) 14.0" (356 mm) 0.25" (6.4 mm) RRIRS F 0.38" (9.7 mm) I OLTS H 2.0" (50.8 mm) NNote: Fuses rated through 15.5 kv (odes 1 and 2) can be used in center position; either 8.3 kv or short 15.5 kv switchblades (ode 1) can be used in the outer positions on catalog numbers F21 and 2. Only long 15.5 kv switchblades (ode 2) can be used in the outer positions on catalog number F23. When mounting center hinge to through bushing, maintain dimensions shown for proper rc-strangler loadbreaking operation. F 0.19" (4.8 mm) 9.94" (253 mm) for 8.3 kv Fuse 14.31" (364 mm) for 15.5 kv Fuse 3.88" (98.6 mm) Mounting Hole for 0.38" (9.5 mm) olt Figure 9. Single-phase common latch feed-through mounting frame F2 (refer to Table 6 for dimensions). 1.5" (38.1 mm) 5.44" (138 mm) Min., 6.44" (164 mm) Max. (95 kv IL) 6.63" (169 mm) Min., 7.63" (194 mm) Max. (125 kv IL) 185 ia. Position Hole.421" (10.7 mm) 1" (25.4 mm) 2" (50.8 mm).75" (19.1 mm) Locating and mounting dimensions for center hinge 4.0" (102 mm) 1.0" (25.4 mm) 1.13" (28.7 mm) 1.06" (26.9 mm) 11.0" (279 mm) Four insulator or transformer bushing 6.13" (156 mm) 9.0" (229 mm) rea within dash lines is cut out on F51 to allow for transformer bushing to project into this area 0.56" x 1.5" (14.2 mm x 38.1 mm) Mounting Slots 9.94" (253 mm) 16.88" (429 mm) 2.19" (55.6 mm) 8.3 kv, 95 kv IL rating. atalog Number F51 has three insulators 12.19" (310 mm) 21.31" (541 mm) pprox. with fuse or switch in open position 0.5" (12.7 mm) learance to Mounting Surface Figure 10. Single-phase common hinge feed-through VI-style mounting frame F51 series (refer to Table 6 for dimensions). 10

11 urrent-limiting fuse mounts atalog ata N dditional literature aton has additional reference information available on NX, LX and X-Limiter fuses N LX Full-Range urrent-limiting Fuse N X-Limiter Full-Range urrent-limiting Fuse N NX Indoor urrent-limiting Fuses R Mounting learances-type NX Fuses 11

12 atalog ata N urrent-limiting fuse mounts aton 1000 aton oulevard leveland, OH United States aton.com aton s Power Systems ivision 2300 adger rive Waukesha, WI United States aton.com/cooperpowerseries 2018 aton ll Rights Reserved Printed in US Publication No N / SS June 2018 aton is a registered trademark. ll other trademarks are property of their respective owners. For aton's ooper Power series fuse mount product information call or visit:.

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