VBII Selection and Application Guide safety Type VBII
You Asked for It. Siemens Listened. Contents Features Enclosure Ratings and Types Plug Fuse Type 4-5 6-10 Siemens asked contractors for everything they wanted in an enclosed safety switch. Their input helped create the toughest, most reliable, most hassle-free enclosed safety switch in the business—the Siemens Type VBII Safety Switch. It’s a switch that’s right for any commercial, industrial or special use application.
One Tough Switch: Siemens Type VBII Safety Switch Siemens now offers a complete line of enclosed switches featuring unique and innovative designs that are unparalleled in the industry. closed in operation General and Heavy Duty Switches Feature a Time-Proven Design Like the time-proven Vacu-Break design, the Siemens VBII double-break switching action breaks the arc in two places. This reduces heat generation and increases switching speed by doubling the breaking distance.
General and Heavy Duty Features Siemens Type VBII Safety Switch Application General Duty Switches General Duty Switches are intended for applications where reliable performance and continuity of service are needed, but where duty requirements are not severe and usual service conditions prevail. These switches are intended for use primarily with supply circuits rated 240V AC or less where the available fault current is less than 100,000A when used with Class R or T fuses or 10,000A max.
Feature Comparison General Duty Heavy Duty Double Throw ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓➂ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ➅ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓➆ ✓ ✓ ✓ ✓ ✓ ✓ ✓ Underwriters’ Laboratories Inc. Listed by UL under file #E4776 as enclosed switches and also suitable for use as service equipment except on 1200A switches on Y systems of more than 150V to ground.
Siemens Type VBII Safety Switch Type 1 enclosures are intended for indoor use primarily to provide protection against contact with the enclosed equipment in locations where unusual service conditions do not exist.
Type 3R Enclosure Type 3R enclosures are intended for outdoor use primarily to provide a degree of protection against falling rain and sleet, and must remain undamaged by the formation of ice on the enclosure. They are not intended to provide protection against conditions such as dust, internal condensation or internal icing.
Type 4/4X Enclosure Siemens Type VBII Safety Switch Type 4/4X enclosures are intended for indoor or outdoor use primarily to provide a degree of protection against windblown dust, rain, splashing water and hose-directed water. They are not intended to provide protection against conditions such as internal condensation or internal icing. Also meets 4X definition by providing a high degree of protection against corrosion.
Type 3R / 12 Enclosure Type 3R / 3S enclosures are intended to provide a degree of protection against windblown dust, and to allow operation when ice-laden. They are not intended to provide protection against conditions such as condensation or internal icing. Type 12 enclosures are intended for indoor use primarily to provide a degree of protection against dust, falling dirt and dripping water. They are not intended to provide protection against conditions such as internal Command.
Type 7 and 9 Enclosure Siemens Type VBII Safety Switch Type 7 enclosures are intended for indoor use in locations classified as Class I, Groups A, B, C or D as defined in the National Electrical Code. Type 9 enclosures are intended for indoor use in locations classified as Class II, Groups E, F or G as defined in the National Electrical Code.
General Duty Switches Plug Fuse and Special Application Types Features ƒ • Compact size • Visible blade, double-break switching action • Quick-make, quick-break operating mechanism • Highly visible ON/OFF indicators • Padlock-off handle feature • Door padlock provision • Bondable neutral (where indicated) • Lugs suitable for copper or aluminum wire • 30A cartridge fuse switches rated 100,000 AC with Class R fuses Ampere Rating Catalog Number Indoor-Type 1 Ship. Wgt.*➀ Dwg. Fig.
General Duty Switches-Features (60-600A) 5 11 9 3 6 10 1 8 4 7 2 12 1. Cover interlock 2. Tangential knockouts through 600A for easy conduit lineup 3. Quick-make, quick-break operating mechanism that ensures positive operation 4. Provisions for T, R, J, H and K class fuses (T & J 200-600A) 12 5. Generous wiring gutters that meet or exceed NEC wirebending space requirements 6. Visible blade, double-break switch action 7. Positive two- or three-point mounting 8. Highly visible red handle grip 9.
General Duty Switches Indoor - Type 1 System Ampere Rating Catalog Number Ship. Wgt.* Horsepower Ratings ➀ 240 Volt AC Outdoor - Type 3R Dwg. Fig Catalog Number Ship. Wgt.* Dwg. Fig. 1-Phase, 2-Wire 2-Phase, 4-Wire Std. Max. Std. Max. 3-Phase, 3-Wire Std. Max. 250 Volt DC Std.
Heavy Duty Switches Features 1. Quick-make, quick-break operating mechanism that ensures positive operation 15 3 2. Visible blade, double-break switching action 3. Arc chutes dissipate heat and prolong switch life 2 4. Highly visible red handle grip designed for hook stick operation 5. Defeatable dual cover interlock 4 6. Center punch provided for field drilling to allow ON padlocking 7. Handle can be padlocked in the OFF position with up to three padlocks with 5/16” hasps 6 8.
20 11 17 16 9 1 5 13 19 8 14 12 15
Heavy Duty Switches Horsepower Ratings ➀ Indoor - Type 1 System Ampere Rating Catalog Number Outdoor - Type 3R Ship. Wgt.* Dwg. Fig. Catalog Number 13 16 21 44 129 150 133 159 360 362 4 5 6 7 9 9 9 9 11 11 HF221NR HF222NR HF223NR HF224NR HF225NRH➂ HF225NR HF226NRH➂ HF226NR HF227NR ➀ HF228NR ➀ 13 17 22 49 137 164 139 165 380 382 4 5 6 7 9 9 9 9 11 11 HF321NR HF322NR HF323NR HF324NR HF325NRH➂ HF325NR HF326NRH➂ HF326NR HF327NR ➀ HF328NR ➀ Ship. Wgt.* 240 Volt AC Dwg. Fig. 1-Phase, 2-Wire Std.
Heavy Duty Switches Horsepower Ratings ➂ Indoor - Type 1 System Ampere Rating Catalog Number Outdoor - Type 3R Ship. Wgt.* Dwg. Fig. Catalog Number 480 Volt AC 1-Ø, 2-Wire 600 Volt AC 3-Ø 3-Wire Ship. Wgt.* Dwg. Fig. Std. Max. Std. Max. 1-Ø 2-Wire Std. Max. 3-Ø 3-Wire Std. Max.
Heavy Duty Switches Indoor - Type 1 System Ampere Rating Catalog Number Outdoor - Type 3R Ship. Wgt.* Dwg. Fig. Catalog Number Horsepower Ratings 240 Volt 480 Volt Ship. Wgt.* Dwg. Fig.
Heavy Duty Special Application / Interlocked Receptacle Switches Application Description➀ ➁ Receptacle Safety Switches provide cord connection protection of heavy-duty portable equipment (welders, infrared ovens, batch feeders, portable conveyors, assembly line fixtures and tools, refrigerator trucks, etc.) under load or fault conditions. All receptacle switches are supplied with 4 prong receptacles.
Heavy Duty Special Application 4 & 6 Pole Switches Application Features 4 & 6 pole switches are commonly used as a disconnecting means for twospeed, two-winding motors. Fused switches provide both over current and short-circuit protection. Non-fusible switches normally provide a local disconnection means for two-speed motors, which are remote from their motor controller. 4 pole switches are also used in 3-phase, 4-wire circuits when a switching neutral is required.
Heavy Duty Special Application Switches / Non-Metallic Application operating temperatures and is supplied with a continuous memory retaining gasket for a superior seal against entry of water, dust and other contaminants. The excellent insulating properties of fiberglass virtually eliminate problems caused by internal condensation.
General and Heavy Duty Accessories Copper Lug Kits Heavy duty switches are UL approved to accept field installed copper lug kits.
HA261234 HA161234 Auxiliary Contacts Auxiliary Contacts are available only for Heavy Duty Switches. The auxiliary contacts are available in 1 normally open and 1 normally closed or 2 normally open and 2 normally closed configurations. Siemens offers a PLC Auxiliary Switch (30-200A) that has very low resistance for low voltage and current typical in PLC circuits. All auxiliary contacts make after and break before the main switch contacts. Auxiliary Contacts Switch Ampere Rating Aux.
General and Heavy Duty Accessories Class J Fuse All 100-600A General Duty, 100-600A 240V Heavy Duty and 600V, 30-600A Heavy Duty Switches are field convertible to accept Class J fuses by moving the load base to a predrilled J fuse position. HN612 Neutral Kits Standard Neutral Kits can be field installed in General and Heavy Duty Switches.
General and Heavy Duty Hub and Lug Data SL0420 ECHS200 Compression Lug Neutral Barrier Kit ECHV300 SSH150 Interchangeable Hubs Conduit hubs are available for Type 3R, 12 and 4/4X applications. 30-200A Type 3R Switches are provided with a conduit hub provision and a removable hub plate on their top rainsheds.
Heavy Duty Crimp Lug Application Data Heavy Duty Switches are UL approved to accept the following field installed compression lugs: Heavy Duty 30 Amp ➀ Wire Size Burndy Thomas-Betts CU ONLY CU/AL CU ONLY #14-10 #8 YA8C-L Box YA8C-L1 Box Ilsco CU/AL 60096 60097 60101 60102 61102 61107 54104 54130 #6 CU ONLY CU/AL CRA-8 ACL-8 ACN-8 Heavy Duty 60 Amp ➁ Wire Size #14-10 #8 #6 Burndy Thomas-Betts CU ONLY CU/AL YA8C-L1 Box YA8C-TC14 YA6C-L Box YA6C YA8CA3 YA6CA1 #4 CU ONLY 256-30695-1352
Special Application Safety Switches Non-Metallic & Interlocked Receptacle Switch Dimension Drawings W 4 X 0.50 (12.70) C F G A H E D J B Dimensions (Inches) Non-Metallic Catalog Number HF321NX HF322NX HF361NX➀ HF362NX➀ HF363NX➀ HF364NX➀ HNF361NX➀ HNF362NX➀ HNF363NX➀ HNF364NX➀ H W D A 18.75 18.75 18.75 18.75 26.95 33.41 18.75 18.75 26.95 33.41 12.11 12.11 12.11 12.11 14.87 27.47 12.11 12.11 14.87 27.47 10.25 10.25 10.25 10.25 13.25 13.19 10.25 10.25 13.25 13.19 16.59 16.59 16.59 16.59 24.
Double Throw Switches Description & Application Double throw safety switches are intended to transfer loads from one power source to another. All two- and three pole double throw switches are suitable for use as service equipment. All are UL listed. Switches are rated for use on systems up to 10,000A when protected with Class H fuses or 100,000A when protected with Class R or Class T fuses¡. They can also be used to connect a single source of power to either of two loads.
Double Throw Switches General Duty, Accessories, Lug Data and Horsepower Ratings Double Throw Switches Number System Voltage of Poles Type 3R – Outdoor➀ Less Neutral Amps Type 3R – Outdoor➀ With Neutral Catalog Number Catalog Number General Duty Non-Fusible ON OF ON 2 240 Volt AC 3 100 200 100 200 DTGNF223R DTGNF224R DTGNF323R DTGNF324R DTGNF223NR DTGNF224NR DTGNF323NR DTGNF324NR Wire Ranges (Line, Load and Neutral) per NEC requirements Accessories – 2 and 3 Pole Type "DT" Switches Only ➁ Cata
Detailed Dimension Drawings Siemens Type VBII Safety Switches Type 1 (Indoor) 30 Amp General Duty (2-Pole) Figure 1 [4] .25 [6.35] Dia. Mounting Holes 3.00 [76.2] Door 1.75 [44.45] 1.75 [44.45] 1.13 [28.7] .94 [23.88] 5.38 [136.35] .91 [23.1] .38 [9.65] .10 [2.54] 1.38 [35.5] 1.00 [25.4] 1.13 [28.7] 1.00 [25.4] B B A C L B B A 1.63 [41.40] 1.63 [41.40] 5.44 [36.58] [Door] C L 8.13 [206.5] [Door] 7.97 [202.44] 6.13 [155.70] 1.00 [25.4] B A 1.00 [25.4] A C B L .85 [21.59] .
[ ] [ ] 9.01 [ 229 ] Type 1 (Indoor) 30 Amp Heavy Duty Non-Fusible 60 Amp Compact Heavy Duty Non-Fusible 60 Amp General Duty Non-Fusible Figure 3 ➀ .25 DIA GROUND KNOCKOUT TOP & BOTTOM 5.71 [ 145 ] B (3) TOP & BOTTOM .91 [ 23 ] 1.51 [ 38 ] 1.80 [ 46 ] 1.80 [ 46 ] .25 [ 6] 6.64 [ 169 ] 10.17 ➀ [ 258 ] 7.67 [ 195 ] SEE DETAIL C 4.34 [ 110 ] 1.35 [ 34 ] .27 DIA [7 ] .94 [ 24 ] 8.25 ➀ [ 210 ] 5.05 [ 128 ] .65 [ 16 ] 1.45 [ 37 ] RIGHT SIDE 1.47 ➀ [ 37 ] B 1.46 [ 37 ] B LEFT & B .
Detailed Dimension Drawings Siemens Type VBII Safety Switches Type 1 (Indoor) 60 Amp Heavy Duty (Also 30 Amp Oversized Heavy Duty) Figure 5 A (3) TOP & BOTTOM .88 DIA KNOCKOUT 11.53 ➀ [ 293 ] .25 DIA GROUND KNOCKOUT TOP & BOTTOM 10.19 [ 259 ] 1.97 [ 50 ] 5.00 [ 127 ] 10.17 ➀ [ 258 ] SEE DETAIL B 2.48 [ 63 ] 4.47 [ 114 ] 1.19 [ 30 ] OF BOX 13.36 [ 339 ] 6.08 [ 155 ] 8.25 ➀ [ 209 ] 5.05 [ 128 ] 2.07 [ 53 ] 2.50 [ 64 ] 17.46 [ 443 ] 16.26 [ 413 ] A (2) .28 [ 7] LEFT & RIGHT SIDE .
Type 1 (Indoor) 200 Amp General and Heavy Duty 15.39 [ 391 ] Figure 7 12.33 ➀ [ 313 ] SEE DETAIL C 6.36 [ 162 ] 4.39 ➀ [ 112 ] OF BOX 25.22 [ 640 ] 22.43 [ 570 ] .87 [ 22 ] 2.45 [ 62 ] 31.07 [ 789 ] 4.88 [ 124 ] 29.90 [ 759 ] LEFT & RIGHT SIDE} 12.42➀ [ 315 ] 3.68 [ 93 ] .81 [ 21 ] 5.50 [ 140 ] 4.37 [ 111 ] 8.20 [ 208 ] .47 [ 12 ] 2.31 [ 59 ] 9.74 ➀ [ 247 ] .38 DIA [ 10 ] 1.44 [ 37 ] 1.00 DIA [ 25 ] .81 [ 21 ] DETAIL C KNOCKOUT CODE A (Tangential) 1.25 2.50 14.68 [ 373 ] 24.
Detailed Dimension Drawings Siemens Type VBII Safety Switches Figure 9 Type 1 (Indoor) 400 / 600 General and Heavy Duty Fusible 14.68 [ 373 ] 24.65 [ 626 ] 2.07 [ 53 ] 13.44 [ 341 ] 20.50 [ 521 ] 26.70 [ 678 ] 9.23 [ 234 ] 2.50 [ 64 ] A(4) 11.00 [ 279 ] .50-.75 DIA (2) GROUND KNOCKOUT TOP & BOTTOM 1.56 [ 40 ] 1.80 [ 46 ] 18.77 E [ 477 ] 4.07 [ 104 ] 5.50 [ 140 ] .25 [6] 11.00 [ 279 ] 39.00C [ 991 ] 16.50 279 ] ] [ 419 44.00B [ 1118 ] 44.57 [ 1132A ] DIMENSIONS SWITCH TYPE A .43 (4) .
Figure 11 Type 1 (Indoor) 800 / 1200 Amp Heavy Duty Fusible 14.68 [ 373 ] 38.40 [ 975 ] 3.20 [ 81 ] 2.79 [ 71 ] 13.44 [ 341 ] 32 [ 813 ] 24.02 [ 610 ] 40.00 [ 1016 ] 9.24 [ 236 ] 67.16 [ 1706 ] 61.25 [ 1556 ] .25 [ 6] 66.67 [ 1693 ] 30.46 [ 774 ] .56 Dia (4) [ 14 ] 13.24 [ 336 ] No knockouts in the enclosures. Type 3R (Outdoor) 30 Amp General Duty (2-Pole) 3.13 [ 79.50 ] Figure 12 5.94 [ 150.88 ] 5.44 [ 138.18 ] (Door) 2.81 [ 71.37 ] Type HA Outdoor Hub Provision 5.38 [ 136.65 ] C L .
Detailed Dimension Drawings Siemens Type VBII Safety Switches Type 3R (Outdoor) 30 Amp General Duty (3-Pole) Figure 13 TYPE HA OUTDOOR HUB PROVISION 3.13 [ 79.50 ] 7.69 [ 195.33 ] 2.81 [ 71.37 ] 7.19 [ 182.63 ] (Door) C L 5.38 [ 136.65 ] 1.31 [ 33.27 ] .10 [ 2.54 ] 7.38 [ 187.45 ] C L 8.16 [ 207.26 ] (Door) 8.07 [ 204.98 ] 6.13 [ 155.7 ] 1.94 1.94 [ 49.281.94 ] [ 49.28 1.94 ] [ 49.28 ] C L A .85 [ 21.59 ] 1.00 [ 25.4 ] B .85 [ 21.59 ] 2.50 [ 63.50 ] 1.13 [ 28.7 ] 2.50 [ 63.
10.17➀ [ 258 ] 8.25 ➀ [ 209 ] Type 3R (Outdoor) 30 Amp Heavy Duty Fusible 60 Amp General Duty Fusible [ 34 ] 7.91 [ 201 ] .32➀ [ 8] 5.05 [ 128 ] SEE DETAIL C 1.35 [ 34 ] 3.21 [ 82 ] .78 [ 20 ] 15.45 [ 393 ] 10.11 [ 257 ] 4.07➀ [ 103 ] 1.32 [ 34 ] 1.90 [ 48 ] 2.42 [ 62 ] .82 [ 21 ] 1.04 [ 26 ] 9.01 ➀ [ 229 ] 4.34 [ 110 ] .79 [ 20 ] 4.84 [ 123 ] 5.95 [ 151 ] 1.80 [ 46 ] 6.64 [ 169 ] 1.80 [ 46 ] .31 [ 8] 1.47 [ 37 ] DETAIL C .91 [ 23 ] 4.58 [ 116 ] 16.
Detailed Dimension Drawings Siemens Type VBII Safety Switches Type 3R (Outdoor) 100 Amp General and Heavy Duty (also 60A Oversized Heavy Duty) Figure 17 ➀ ➀ ➀ ➀ ➀ ➀ KNOCKOUT CODE A (Tangential) .75 B (Tangential) 1.00 SEE DETAIL C 5.10 [ 130 ] 7.19 [ 183 ] .35 [ 9] OF BOX 22.43 [ 570 ] 4.39➀ [ 112 ] 10.17➀ [ 258 ] 6.36 [ 162 ] 31.07 [ 789 ] A (2) 3.68 [ 93 ] 5.50 [ 140 ] 3.10 [ 79 ] 5.50 [ 140 ] 8.20 [ 208 ] 2.00 A LEFT & RIGHT SIDE 12.42 ➀ [ 315 ] .81 [ 21 ] 7.30 [ 185 ] 29.
Type 3R (Outdoor) 400 / 600 Amp Heavy Duty Non-Fusible Figure 19 14.68 [ 373 ] 13.44 [ 341 ] 26.50 [ 673 ] 2.07 [ 53 ] 20.50 [ 521 ] 2.50 [ 64 ] 9.23 [ 234 ] .62 [ 16 ] .83 [ 21 ] 26.70 [ 678 ] 18.77 [ 477 ] A(4) 11.00 [ 279 ] .50-.75 DIA (2) GROUND KNOCKOUT BOTTOM ONLY 1.56 [ 40 ] 1.80 [ 46 ] 39.00 [ 991 ] 44.57 [ 1132 ] 4.07 [ 104 ] 44.07 [ 1120 ] 5.50 [ 140 ] .25 [6] 11.00 [ 279 ] .43 DIA (4) [ 11 ] 16.50 [[419 279 ] ] 13.46 [ 342 ] KNOCKOUT CODE CONDUIT SIZE A 2.00 2.50 3.00 3.
Detailed Dimension Drawings Siemens Type VBII Safety Switches Type 3R (Outdoor) 800 / 1200 General and Heavy Duty Non-Fusible 14.68 [ 373 ] 40.25 [ 1022 ] 3.20 [ 81 ] Figure 21 13.44 [ 341 ] 32.00 [ 813 ] 2.79 [ 71 ] .54 [ 14 ] 9.57 [ 243 ] .83 [ 21 ] 24.02 [ 610 ] 40.49 40.45 1027 ] ] [[ 1028 49.25 [ 1251 ] 9.24 [ 235 ] 55.16 [ 1401 ] .25 [ 6] 38.40 [ 975 ] 54.67 [ 1389 ] .56 DIA (4) [ 14 ] 18.46 [ 469 ] 13.25 [ 337 ] No knockouts in the enclosures. 800 / 1200 Amp Heavy Duty Fusible 2.
Type 4X (Stainless); 12 (Industrial) 30 Amp Heavy Duty Non-Fusible 60 Amp Compact Heavy Duty Non-Fusible Figure 23 10.46 [ 266 ] 7.42 [ 188 ] 8.46 [ 215 ] SEE DETAIL A 3.24 [ 82 ] .42 [ 11 ] 9.02 [ 229 ] .55 [ 14 ] 6.22 [ 158 ] OF BOX 14.16 [ 360 ] 13.33 [ 338 ] 14.14 [ 359 ] 6.65 [ 169 ] 11.12 [ 282 ] .35 [9 ] 1.86 [ 47 ] .05 [ 1] .27 DIA (4) [8 ] 2.75 [ 70 ] 1.81 [ 46 ] .95 [ 24 ] 5.56 [ 141 ] 2.75 [ 70 ] .27 DIA [7] .63 DIA [ 16 ] DETAIL A 8.
Detailed Dimension Drawings Siemens Type VBII Safety Switches Figure 25 Type 4X (Stainless); 12 (Industrial) 60 Amp Heavy Duty 10.46 [ 266 ] 9.94 [ 253 ] .83 [ 21 ] SEE DETAIL A 3.62 [ 92 ] 11.47 [ 291 ] 8.45 [ 215 ] .42 [ 11 ] 6.34 [ 161 ] OF BOX 18.47 [ 469 ] 16.27 [ 413 ] 19.31 [ 490 ] 19.31 [ 491 ] 9.17 [ 233 ] .35 [9 ] .27 DIA [ 7] 6.69 [ 170 ] 1.99 [ 51 ] .27 DIA (4) [ 7] 4.00 [ 102 ] 4.00 [ 102 ] .95 [ 24 ] DETAIL A .62 DIA [ 16 ] 5.33 [ 135 ] 8.
Type 4X (Stainless); 12 (Industrial) 200 Amp Heavy Duty 15.39 [ 391 ] 12.58 [ 319 ] SEE DETAIL A 10.37 [ 263 ] 5.24 [ 133 ] 7.22 [ 183 ] .42 [ 11 ] Figure 27 16.95 [ 431 ] 8.45 [ 215 ] OF BOX 33.00 [ 838 ] 32.17 [ 817 ] 31.07 [ 789 ] .44 [ 11 ] 11.86 [ 301 ] .38 DIA [ 10 ] 1.14 [ 29 ] .33 DIA (4) [9 ] .75 DIA [ 19 ] DETAIL A 4.60 [ 117 ] 6.75 [ 171 ] 14.62 [ 371 ] 29.96 [ 761 ] 6.63 [ 168 ] 6.75 [ 171 ] 10.01 [ 254 ] No knockouts in the enclosures.
Detailed Dimension Drawings Siemens Type VBII Safety Switches Type 4X (Stainless); 12 (Industrial) 400 / 600 Amp Heavy Duty Fusible Figure 29 14.64 [ 372 ] 24.82 [ 630 ] 4.41 [ 112 ] .63 [ 16 ] 16.00 [ 406 ] SEE DETAIL 13.34 [ 337 ] A 26.44 [ 672 ] 18.54 [ 471 ] 9.19 [ 233 ] 59.68 [ 1516 ] 56.57 [ 1437 ] 24.82 [ 630 ] 58.43 [ 1484 ] 56.14 [ 1426 ] .47 [ 12 ] 25.17 [ 639 ] 1.40 [ 36 ] .56 DIA [ 14 ] DETAIL 1.00 DIA [ 25 ] A 9.19 [ 233 ] .56 DIA [ 14 ] 13.
Type 4X (Stainless); 12 (Industrial) 800 / 1200 Amp Heavy Duty Fusible Figure 31 9.67 [ 246 ] 9.67 [ 246 ] No knockouts in the enclosures.
Detailed Dimension Drawings Siemens Type VBII Safety Switches Figure 1: Type 12/3R and 4X Figure 1: Type 1 E E A D A D CL CL This mounting hole omitted on 30-100A, 4 pole Non-fusible switches (6) “F“ Dia. mounting holes (6) ”F“ Dia. mounting holes (30-200A) C C B B 4 & 6 Pole Safety Switch Dimensions – Inches (mm) Enclosure Catalog Number A Mounting B C D E F 9.53 (242) 9.53 (242) 11.50 (292) 11.50 (292) 12.18 (309) 12.18 (309) 19.12 (486) 19.12 (486) 6.09 (155) 6.09 (155) 6.
Figure 1: Type 1 & 3R ➃ Figure 2: Type 4X & 12 E E C C B A D CL A D CL This mounting hole omitted on 30-100A Type VBII Non-Fusible switches (6) ”F“ Dia. mounting holes (30-200A) (4) ”F“ Dia. mounting holes (400-1200A) (6) ”F“ Dia. mounting holes (30-200A) (4) ”F“ Dia. mounting holes (400-1200A) C C B B VBII Design Double Throw Dimensions – Inches Enclosure Catalog Number Mounting A B C D E F 24.50 29.12 24.88 33.45 9.53 9.53 11.50 11.50 6.09 6.09 6.09 6.09 19.00 23.50 19.00 27.
Replacement Parts Siemens Type VBII Safety Switch HNB623 HM6123 HBB612 HH6123 HFB612 HFB656 Ampere Rating Line Base Load Base Handle/Handle Guard General Duty Heavy Duty Mechanism Assembly 30A General Duty 2- and 3-Pole Fusible and Non-fusible ➄ 30 Fused, 2-Pole 30 Fused, 3-Pole 30 Non-fused W410472A W410473A W410473B – – – – – – 240V Max – – – – – – Fusible 2 and 3-Pole 60-600A General Duty & 30-600A Heavy Duty ➄➇ 30 HD 240V 60 GD 60 HD 240V➉ 100 200 400 600 800 1200 HFB21 ➁ HFB612 ➁ HFB
Fuse Application and Selection Data Siemens Type VBII Safety Switch Siemens enclosed safety switches are designed for fuse versatility. Although Siemens is not a manufacturer of fuses, once the type of fuse needed for a particular application is determined, it’s easy to select an appropriate switch.
Fuse Applications and Dimensions Siemens Type VBII Safety Switch Class R and H Fuses Class R Application: Over-current and short-circuit protection of motors and transformers, service entrance equipment, feeder and branch circuits. (General Purpose Protection) A A B F B E D G Class R Rejection: A UL Class R fuse kit is required that rejects lower-rated fuses (H and K).
Class L Class T Application: Current limiting protection for service entrance equipment, feeder circuits and metering centers. Application: It combines two highly desirable features—a high degree of current limition and a small physical size. Panelboards, Switchboards and Metering Center. Rejection: Its unique dimensions prevent the substitution of another fuse.
Ratings and Test Requirements Siemens Type VBII Safety Switch Enclosed Switch Load Ratings The primary functions of a fusible enclosed switch are to carry current continuously, to provide over current and short-circuit protection, to be capable of disconnecting the circuit, and to provide means for mounting fuses.
Siemens Type VBII Safety Switch Multiple-Voltage Horsepower Ratings A switch may have additional standard and maximum horse-power ratings for different voltages. A switch that is horsepower rated at 240V AC or 250V DC may also have horsepower ratings for motors on 120V AC or 125V DC circuits. Multipole Horsepower Ratings A switch may have horsepower ratings applicable to the same current and voltage ratings but with fewer poles if the switch is investigated and found suitable for the assigned rating.
Siemens Type VBII Safety Switch Suggested Specifications A. GENERAL 1. TYPE 1.1. Switches shall be furnished as shown on the drawings and shall be of the type described and specified herein. 2. STANDARDS Switches shall comply with the following standards: 2.1 UL 98—Enclosed and Dead Front Switches 2.2 NEMA KS 1—Enclosed Switches 3. SUBMITTAL 3.
Siemens Type VBII Safety Switch Suggested Specifications Continued 3. SWITCH ENCLOSURES 4. SWITCH RATINGS 3.1 Switch covers shall be attached with pin-type hinges. Except for outdoor General Duty 30A switches, top-hinged doors are not acceptable. 4.1 All switches shall be UL-listed. 3.2 Enclosures for Type 3R switches through 200A shall have provisions for interchangeable bolt-on hubs in the top endwall. Hubs shall be Siemens Type HS or HA hubs sized as indicated on the plans. 3.
Type VBII Safety Switch Catalog Numbering System H F 3 6 4 N Switch Type CU Special Applications With: L = General Duty 10k AIC Max.
