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Electric
boxes and Enclosures Electric boxes |
![]() ![]() -Use only approved 600 volt cables, wires, enclosures, boxes, conduit etc for household 120-240 volt. -Extension cords are not rated 600 volt, and cannot be used for permanent in-wall wiring. Resources Extension cord code -Do not use makeshift, homemade boxes that are not rated for household voltage. -Correct box must be used for application ... a light fixture or fan requires round or octagon box ... cannot use switch box, or square junction box for light fixture ... cannot use round, octagon, or square junction box for switch and outlet. -All enclosures and boxes require a cover that is made to fit box, and must sit flat and tight against box. -Missing knockout holes must be filled. -Keep enclosure door or cover in place and closed to contain spark and potential fire hazard. -Box cannot have vent holes or heat fan installed where air supply can feed a potential fire. -Never solder household wiring connections. High heat from resistance, caused when amperage gets pushed through the wire by voltage, will melt solder and cause potential hazard. -Use only approved 600 volt wire connectors. Never reuse old wire connectors. -All enclosures, wiring, conduit etc must be attached firmly to structure, and located so cannot be damaged by lawn equipment etc. and best if located away from high heat, exposure to sun. Heat will cause deterioration of electrical installations. ![]() Resources: Safe electric wiring/ for boxes and enclosures Color code for wire Low-voltage structural wiring (doorbell, communication, TV etc): -Never include low-voltage 'structural wiring' inside same enclosure, conduit, raceway or box as household voltage. -Low voltage structural wiring and household wiring must be electrically separated to prevent insulation failure from energizing low voltage wires, cause fire and safety hazard. -Structural wiring can be run inside walls, does not require enclosure, box conduit etc except for installation convenience, weatherproofing, reliability, organization, access to splices and connections etc. -Household 120-240 volt wiring cannot be soldered ... but low-volt structural wires can be soldered when needed. Resource: troubleshoot low voltage doorbell |
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Buy
electric wiring Book Black and Decker Complete guide to wiring NEC books Dewalt plumbing/ electrical codes Basic electric book National electric code guide/ illustrated Lineman's and Cableman's Handbook Resources; Basic house wiring Safe electric wiring |
Enclosures for timers, relays, contactors, delay timers etc | |
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Heavy-duty Intermatic
enclosures will fit the T100 series, ET series, etc Indoor-outdoor enclosure/ metal or plastic Rated for electrical wiring ... with four 1/2-3/4" knockouts for electrical wiring ... 9-3 ⁄8" x 5-1 ⁄2" x 3-5 ⁄8" space to install Intermatic timer ... or install your own electrical controls ... Attach all enclosures and electrical equipment and wiring firmly to structure, locate where installation cannot be damaged or impacted by equipment, locate above anticipated snowfall and preferably in location out of direct sunlight or excessive heat that will deteriorate any electrical installation. Buy: Nema 3R weather resistant metal enclosure Nema 3R weather resistant plastic enclosure Additional Resources: T100 series ET series Freeze controls Defrost series Air controls EH series water heater timer |
![]() Larger image 9-3 ⁄8" x 5-1 ⁄2" x 3-5 ⁄8" Enclosures can be used for timers or for other electrical for electrical control center... Shown are several devices mounted to din rail. The din rail must be firmly attached to enclosure. Delay timers will fit if mounted directly to metal box, and not din rail. Note that the
LY2-LY3 15 amp relays are rated 10 amps for 2 and 3-pole relays. And 5
amps for LY4 4-pole relay.
Buy:2T511GA Nema3R enclosure at Amazon 10 amp Relays 10 amp LY2 relays LY3 relay 120 volt LY2 15 amp Din rail timer Din rail Fuseholder Resources: Din rail timers Off Delay timers On delay timers Build 3-phase astronomic timer Build 2-speed timer for pump, motor etc |
![]() Larger image Another image Contactor, open-frame relay, and small relay with base will fit into Intermatic metal and plastic enclosures, but not the smaller Grasslin enclosures. Note that a 30 amp
power relay, or switch, or contactor has safe maximum
80% rated value, or 24 amps. For 30 amp circuit, must use 600 volt, 10
gauge solid copper wire. Never undersize wire or use extension cord for
permanent wiring.
Buy: 2T511GA Nema3R enclosure at Amazon Siemens 30 amp power relay 30-40 amp Contactors Resources: Contactors and relays How to wire open frame relay Build a 2-speed motor control |
Metal Enclosures/ Ground screw in box/ For timers, equipment. indoor/outdoor | ||||
![]() 2T2485GA Nema 3R Outside: 9-3/8x 5-1/2 x 3-5/8 Rubber seal Standard Metal indoor beige Buy: 2T2485GA at Amazon |
![]() 2T511GA Nema 3R weather resistant Outside: 9-3/8x 5-1/2 x 3-5/8 Rubber seal Standard Metal outdoor gray Buy: 2T511GA at Amazon |
![]() 2T2040GA Nema 1 Indoor enclosure Outside: 7-3/4 x 5 x 3 Standard Metal indoor gray Buy: 2T2040GA grey at Amazon |
![]() 2T2331GA Nema 3R Outside: 9-3/8x 5-1/2 x 3-5/8 For T100CR and t1400BR Buy: 2T2331GA at Amazon |
![]() Discontinued? 2T2293GA Nema 3R Outside: 12.5 x 8.25 x 3.8 Metal outdoor gray Buy: 2T2293GA at Amazon Substitute Arlington / 12 x 12 x 4 |
Plastic enclosures/ Box does not need grounding/ For timers, wifi, indoor outdoor | ||||
![]() Buy 2T2502GA Nema 3R Outside: 9-3/8x 5-1/2 x 3-3/4 Plastic outdoor beige Buy: 2T2502GA beige at Amazon |
![]() 2T2500GA Nema 3R Outside: 9-3/8x 5-1/2 x 3-3/4 Plastic outdoor gray Buy: 2T2500GA grey at Amazon Square D |
![]() Grasslin timer box Outside: 10 x 6-1/2 x 3-3/4 Inside: 7-3/4 x 4- 3/4 x 3 deep Grey Plastic Nema 1 Plastic indoor gray Buy: E150 Indoor at Amazon |
![]() Grasslin Outside: 10 x 6-1/2 x 3-3/4 Inside: 7-3/4 x 4- 3/4 x 3 deep Grey Plastic Nema 3R Rubber seal Plastic outdoor Buy: E200 Outdoor Amazon |
![]() Grasslin Outside: 8-3/4 x 6- 5/8 x 2- 7/8 Grey Plastic Nema 3R Plastic outdoor Buy: E300 compact Amazon |
Misc enclosures | ||||
![]() 2T2926A Nema 3R Outside: 9-3/8x 5-1/2 x 3-3/4 4 x 3-1/2 see-thru door Plastic outdoor gray/ see thru Buy: 2T2926A with timer included Bud Industries with clear door |
![]() Discontinued? 2TP3352A Nema 3R Plastic outdoor beige Buy: 2TP3352A with timer included Resource Intermatic-P1103FE-24-hour |
![]() 2T308A indoor with lock Gray flush finish Adjustable mounting bracket Buy: 2T308A at Amazon Cam lock for enclosures |
![]() 2T2365GA indoor with lock Gray flush finish Riveted mounting bracket Buy: 2T2365GA at Amazon Cam lock for enclosures |
![]() Bud Industries junction boxes Buy: various brands: Bud Industries boxes at Amazon Boxes from Attabox Arlington boxes at Amazon Hammond project boxes Lynn electronics enclosure Leviton structured media Electric enclosure Do not fit Intermatic timers |
Control centers for timers plus
circuit breakers, GFCI, outlets etc/ heavy duty outdoor For more info: Control centers and manuals |
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Intermatic Nema 3R heavy-duty,
weather resistant, indoor-outdoor metal enclosures![]() They come with or without timers. Some models have 4 to 8 circuit breaker spaces. Intermatic Nema 3R control center enclosures have wide variety of options: ... with ample space for wiring (4-1/2" deep), various widths, 3-5 knockouts for adding ordinary switches and outlets, including GFCI and home automation ... they support installation of Intermatic programmable and mechanical timer(s), and an adapter for Tork and other brand timers ... you can add other items like low voltage transformer such as LED driver etc ... some models have freeze control override .... all models have numerous 1/2-3/4" knockouts for multiple runs of conduit, including low voltage lines for pathway lights and swimming pool lights. Buy: Enclosure with no breaker spaces Enclosure with 8 breaker spaces ![]() Resources Intermatic control centers: + dimensions, manuals and parts How to wire control centers Which breaker for Intermatic control center Optional resources Freeze control centers and manuals Digital control centers/ Including Z-wave Intermatic/Grasslin enclosures/ pdf 2.4Mb Intermatic Enclosures and accessories/ pdf Enclosure ratings |
![]() Buy: T10000R at Amazon PE10000 enclosure Resource Sell sheet 12" (30.5 cm) high x 12" (30.5 cm) wide with latch x 4-1/4" (10.8 cm) deep |
![]() Buy: T21000R at Amazon 16-3/4" high x 18-7/8" wide x 4-3/8" deep/ 4 breaker spaces |
![]() Buy: T30000R at Amazon 16-1/2" (41.9 cm) high x 10-7/8" (27.6 cm) wide x 4-1/4" (10.8 cm) deep/ 8 breaker spaces |
![]() Buy: T40000R at Amazon 20-3/4" (52.7 cm) high x 12-3/4" (32.4 cm) wide x 4-1/4" (10.8 cm) deep/ 8 breaker spaces |
![]() Buy: T40000R4 at Amazon 20-3/4" high x 12-3/4" wide x 4-1/4" deep / 8 breaker spaces |
Control centers for timers plus
breakers, outlets etc For more info: Digital Control centers and manuals |
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![]() Buy: PE10000 at Amazon 14.75" x 14.75" wide x 4.25" deep |
![]() Buy: PE20000 at Amazon 16.5" x 107/8" wide x 4.25" deep/ 4 breaker spaces |
![]() Buy: PE30000 at Amazon 22" x 14.75" wide x 4.25" deep/ 8 breaker spaces |
/ 8 breaker
spaces will fit up to 8 - 120 volt single breakers or 4 - 240 volt
double breakers or combination of each Resources: How to wire control center How to wire subpanel |
![]() Buy: PE40000 at Amazon 26" x 18" wide x 5.5" deep/ 8 breaker spaces |
![]() Larger image Replacement circuit breaker base for Intermatic control centers. **Use din-rail-mounted breaker as option for other brands enclosure Din rail breaker |
Buy breaker bases: 124TP2608A 4 spaces 124T2530A 8 spaces Buss bar Grounding Buss bar Din rail mounted circuit breaker Resources: How to wire control center Fuseholders Match wire and breaker Figure volts amps watts How to wire subpanel |
![]() 120 volt 1" wide breaker 240 volt 2" wide beaker Buy: Siemens circuit breakers Resource How to replace circuit breaker |
240 volt clock motor 120 volt clock motor Resource List of other parts |
![]() Minimum 1 hour on-off Up to 12 sets ON-OFF trippers on dial Buy: 156T1978 trippers Amazon Resource How to disassemble, clean and repair timer |
![]() Contactor shown is safe for 1 residential water heater. |
Pull
boxes/ metal
DPST contactor bolted into a 6x6x4 enclosure using #8-32 bolts All boxes must be secured firmly to structure. All equipment inside enclosure must be attached firmly to enclosure. Metal enclosures must be grounded. Buy: 6x6x4 Metal box: has knock-outs for 1/2 and 3/4" ... must drill 1/2" hole for fuseholder, bolt holes to hold contactor, threaded holes for 10-32 ground screw, metal box must be grounded. Indoor 6x6x4 metal pull box with cover and knock-outs/ Raco Indoor 6x6x4 pull box with knockouts on 4 sides/ Wiegman Indoor 6x6x4 pull box with knockouts on 4 sides/ Hoffman Indoor/ hinged door 10x10 x 6 / Bud Industries Indoor / hinged door/ 6x8x4 box / Bud Industries Bud industries boxes at Amazon Arlington boxes at Amazon |
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Junction
boxes/ Plastic 6x6x4 PVC-type electrically-rated box: no pre-drilled holes... must drill holes for Wire connections, 1/2" hole for fuseholder, and 3/16" holes for bolts to hold contactor. Plastic box does not need ground screw connected to box Buy: ![]() Thomas and Betts 6x6x4 plastic with cover at Amazon Bud industries 11x7x5 box no knockouts Tapered drill bit 1/4"-1-3/8 holes |
More Brands | |||
![]() Bud Industries 8 x 10 x 4 Electric box 10 x 10 x 4 Electric box Wiring and controls Buy: Bud Industries 8x10x4 Bud Industries 10x10x4 Bud Industries boxes at Amazon |
![]() Arlington 12 x 12 x 4 Electric box Wiring and controls Buy: Arlington choose sizes/ 12 x 12 x 4 Arlington 7 x 8 x 3.5 Arlington boxes at Amazon |
![]() 6" Pull box Junction boxes for conduit and wiring Buy: 6x6x4 best value Raco 6x6x4 metal pull box Wiegman 6x6x4 pull box Hoffman 6x6x4 pull box Adamax raintight enclosure Raintight 6x6x4 box Pull boxes |
![]() Project box/ Plastic / aluminum Electronic projects IP65 outdoor box ... hide valuables Buy: Project box Hammond project boxes Aluminum enclosure |
![]() Altelix Nema3R polycarbonate indoor-outdoor 1/2 3/4 KO on bottom of enclosure Buy: Altelix enclosures 12x8x4 Polycarbonate Polycarbonate enclosures Honeywell enclosures |
![]() Fiberglass enclosures/ for durability/ indoor/outdoor With aluminum mounting plate ![]() Fiberglasss enclosures Tapered drill bit 1/4"-1-3/8 holes Fish bit Resources Delay timer wiring Contactors |
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![]() Leviton Structured media box ![]() "Structured Media Enclosures terminate home-run wires from wall outlets and provide a distribution point for voice, data, and video wiring in a residence or multiple dwelling unit. UL Listed for fire and burglary systems." Manual Buy: Leviton 24" with 1/2" plywood Leviton structured enclosure Lynn electronics enclosure Cable enclosure |
![]() Legrand ![]() Buy: Legrand 14" Legrand enclosure Electric enclosures Grounding Buss bar Cabletek enclosure Cabletek ![]() |
![]() Enclosure w clear cover Clear cover for easy access, viewing electrical timer, monitor a counter, meter, indicator light, temperature sensor, etc. Buy: Clear cover enclosures Dustproof enclosures Buy Dustproof enclosures Other enclosures Nema 4X harsh weather enclosure Yellow enclosure Cabletek enclosure |
![]() PVC junction boxes Schedule 40 junction boxes Do not require grounding or bonding No knockouts... must drill hole Buy: Cantex junction boxes Thomas and Betts junction box Neiko tapered drill bit 1/4"-1-3/8 holes Resource Cantex Junction box size chart/pdf |
![]() Waterproof/ dustproof Enclosure waterproof except where additional holes are drilled Buy: Uxcell junction boxes Nema 4x enclosure Cabletek enclosure LeMotech dustproof enclosure ![]() Waterproof cable glands Buy: Waterproof cable glands Cable gland washer ![]() |
![]() Hubbell outdoor box Buy: Hubbell Bell aluminum outdoor box Aluminum outdoor boxes Hubbell plastic outdoor box RAB boxes and outdoor lighting Weatherproof covers ![]() IP65 waterproof enclosures Buy: IP65 enclosure Outdoor pvc enclosure Cantex waterproof Nema 4x weatherproof enclosure Outdoor waterproof box |
![]() Outdoor rated receptacle 30-50 amp outlets Buy: Outdoor rated receptacle Reliance controls Resources: How to wire 240 volt outlets How to wire transfer switch ![]() Air conditioner disconnect For any 240 volt applications where both hot wires can be disconnected ... this ensures safety when breaker box is not within sight-line of equipment. Required by code for air conditioners. Can be used for pool pumps, motor loads etc. With or without fuses. Buy: Air conditioner disconnect |
![]() RV Panel Buy: Connecticut electric RV electric Panel Siemens Outdoor rated receptacle Reliance controls Resource How to wire 240 volt outlets How to wire subpanel How to wire transfer switch |
Adapter brackets | ||
![]() Intermatic adapter 6" tall x 5" wide x 2" deep Buy: 22T338GR at Amazon |
![]() Mount T100 series Intermatic timer, or ET series to surface or inside larger enclosure Or surface mount timer inside larger enclosure Depth needed about 3"... will work in 4" deep enclosure |
![]() IAP adapter Snaps into any Intermatic enclosure Install a Tork timer into Intermatic box Buy: IAP adapter |
I glued board onto plastic.... Installed Surface-mount circuit breaker Din rail timer 2 delay timers to flicker lights Buy: Surface mount circuit breaker 10 amp Relays 15 amp Din rail timer Din rail Fuseholder Off delay timer Twin timer Resources How to wire AH3 delay timer How to wire twin timer How to wire Twin timer |
![]() Larger image Larger image2 Buy: Large-medium-small electric cord box Socketbox Raintight enclosures Resources How to wire AH3 delay timer How to wire twin timer |
Square D enclosures, breakers, subpanels Buy: Square D enclosures Resource: How to wire subpanels |
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Industrial quality, gray enamel
coating, 5.125 x 3.25" x 3" high, with four 1/2" knockouts, and 14 pre-threaded 8-32 holes in bottom for attaching various configurations of relays or electrical equipment, plus 2 holes in bottom for attachment screws or bolts, no drilling needed Comes with four 8-32 bolts, 2 for cover and 2 to hold relay or contactor Photo taken in my office with phone and white paper, photoshopped/ cut out, insert white layer at 80% opacity Buy from my affiliate links Magnecraft box and cover Magnecraft w199 relays at Amazon Siemens power relays at Amazon |
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Power relay
Purpose of relay vrs contactor Contactor is on or off, SPDT Heavy-duty open frame Relay has 2 sets of points, DPDT, when one set of points is ON the other is OFF, and then reverses when coil is activated. Coil voltage 24, 120, 240 Buy from my affiliate links Magnecraft box and cover Magnecraft w199 relays at Amazon Siemens power relays at Amazon Resources: How to reverse motor with switch Difference between contactor and relay Relays for DC motors and solar panels Control motor with 2 switches Start two motors at different times Make a 2-speed timer |
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Box with power relay Install with 8-32 bolts in pre-tapped holes Select voltage needed to control coil, 24 120 240 volt Buy from my affiliate links Magnecraft box and cover Magnecraft w199 relays at Amazon Siemens power relays at Amazon |
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2-pole
40 amp
contactor With removable dust cover on top. Contactors. Select voltage needed to control coil. Buy 2-Pole 40A resistive 120Volt coil At Amazon 240Volt coil At Amazon 24 volt coil at Amazon Mars 2-pole and 3-pole contactors at Amazon |
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Box with contactor Install with 8-32 bolts in pre-tapped holes Select voltage needed to control coil. Buy 2-Pole 40A resistive 120Volt coil At Amazon 240Volt coil At Amazon 24 volt coil at Amazon Mars 2-pole and 3-pole contactors at Amazon |
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Review
basic breaker box Resource; See inside main breaker box Basic house wiring Code "-Metal boxes SHALL BE grounded with a separate machine threaded ground screw. NEC sec. 370-4 and 250-114a -All openings in boxes (enclosures) SHALL BE adequately closed. NEC sec. 370-17a -All cable jackets SHALL extend at least 1/4 inch into the box. NEC sec. 370-17c -All cable SHALL BE secured to the box, except for single gang non-metallic boxes, if stapled within 8 inches of the box. NEC sec. 370-17c -Unused openings in boxes SHALL BE effectively closed. NEC sec. 370-18" |
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