Sorting Leviton by Grade, Family, and Suffix
Leviton's own catalog organizes each section by grade, industrial first, then commercial, then residential, grouped by amperage from lowest to highest, and this collection reads the same way once the suffix system clicks. The listings here are bare part numbers, which is how the trade orders Leviton, so the sections below map the families and then decode the numbers.
Which Leviton Family You Need
Straight Blade and Locking Receptacles
The 1,310 receptacles are the backbone, running the 1200 and 1220 industrial families through the 16200 commercial numbers into higher amperage and locking patterns, and they sit in the receptacle collection. The same base number typically appears in seven to ten versions that differ only by the color letter at the end.
GFCI Protection
244 GFCI receptacles cover 15A and 20A protection in the standard color range, and every one of them files in the GFCI collection alongside the site's other ground fault devices.
Plugs, Connectors, and Rhino-Hide
The 612 plugs and connectors run from straight blade cord caps to the Rhino-Hide cam-type single pole connectors, the 15D and 16D families whose suffix letters are phase identification colors. The wider assortment shares the wiring device collection with 408 cross-listed Leviton items.
Pin and Sleeve Devices
All 164 pin and sleeve devices, the IEC 60309 style watertight plugs, connectors, and inlets for heavy equipment, make up the entire pin and sleeve collection, so that category and this brand family are currently the same set.
Switches and Decora Devices
120 industrial grade toggle switches, the 1080 and 1220 series among them, populate the standard switch collection. Beside them sit 97 Decora devices, the flat rocker format Leviton invented, plus 12 dimmers and 14 sensors from the same design family.
Weatherproof, Metering, and Distribution
81 weatherproof devices cover the 14W and 15W outdoor units, 34 meters handle submetering, and the distribution end holds 21 Leviton circuit breakers filed in the breaker collection, plus one Leviton load center. Around 850 further items sit in smaller specialty types beyond these named families.
Reading a Leviton Catalog Number
The base number defines the device and the suffix letter sets the color. Per Leviton's catalogs, I is Ivory, W is White, GY is Gray, A is Almond, T is Light Almond, E is Black, and R is Red, while on classic industrial families a base number with no suffix denotes the brown device. Rhino-Hide cam connectors use the letters differently: Leviton's own product documentation lists W White, E Black, H Brown, R Red, B Blue, O Orange, G Green, and Y Yellow as phase identification colors, which is why a 15D21 appears here in eight versions. Color variants of one base number carry the same price, so specifying the letter is a finish decision, not a budget one.
Where Leviton Sits in the Lumera Catalog
Six categories carry the brand in depth: receptacles, GFCI, wiring devices, pin and sleeve, standard switches, and circuit breakers, all linked above, with small footholds in the dimmer collection at 12 items.
The 14 sensors likewise reach the occupancy sensor collection. The visible gap is wallplates: Leviton plates exist in the catalog but none currently appear in the wall plate category, so plate orders should start from this brand page until that assignment is corrected.
Ordering Notes for Leviton Devices
The listings are intentionally minimal, a part number and a type, because Leviton buyers order by exact catalog number. That puts the spec burden on the product page: amperage, NEMA configuration, and grade are not spelled out in the title, so open the item before committing quantities. Watch the suffix discipline, since 1221-2W and 1221-2 are the same switch in different colors while 1221-2L is a different build at a different price, and one letter changes the order.
Specs to Confirm Before a Leviton Order
Confirm amperage and voltage against the circuit, and the NEMA configuration against the cord cap it must accept, since 5-15R, 5-20R, and 6-20R patterns look similar in photos. Confirm the grade, industrial against commercial against residential, because the same function exists at three price and duty levels. Confirm tamper resistant or weather resistant requirements where the NEC calls for them, and on pin and sleeve gear match amperage, pole count, and voltage code exactly. The listing basis is not uniform across the range, so read the certification line on each device before submittals.
Leviton Device and Ordering Questions
What do the letters at the end of a Leviton number mean?
On standard devices they are color codes from Leviton's catalog, I Ivory, W White, GY Gray, A Almond, T Light Almond, E Black, R Red, and the color versions of one base number are priced the same. On Rhino-Hide cam connectors the letters mark phase identification colors instead, including blue, orange, green, and yellow.
Is there a difference between the 1221 and 16242 families?
They come from different grade tiers of the catalog, which Leviton organizes as industrial, commercial, and residential sections. The right choice depends on the duty cycle and specification of the job, and the grade is stated on each product page rather than in the number itself.
What is a pin and sleeve device?
A pin and sleeve device is an industrial plug, connector, or inlet built to the IEC 60309 pattern, with round pins in a keyed housing that seals against water and dust. They are the standard connection for portable heavy equipment, and the 164 units here cover the common amperages and voltages in matched plug and receptacle pairs.
Why do so many listings look identical?
Because each base device is stocked in its full color run, a single receptacle can appear as seven to ten lines that differ only by suffix. Pick the base number from the spec first, then choose the color letter, and the price stays the same across the run.
