Buyer information, not installation instructions. Requirements depend on the adopted local code and exact product. Electrical work and site diagnosis should be performed by qualified professionals.
FAHINT R15 and R15Q are both 15A, 125V standard duplex receptacles. The difference is at the terminals: R15 offers side/back wiring; R15Q offers side/push-in quick wiring. [Source]
The difference in our catalog
| Model | Rating | Wiring options |
|---|---|---|
| R15 | 15A, 125V | Side wire / back wire |
| R15Q | 15A, 125V | Side wire / push-in quick wire |
The Q identifies the push-in version of this pair. Keep that suffix on the quotation and sample label so the wiring version stays clear through ordering.
Our catalog marks the 15A push-in terminal “#14 AWG only.” That limit applies to the push-in connection. A purchase specification calling for a #12 AWG push-in connection does not match it. [Source]
What the terminal names mean
With screw-clamp back wiring, a screw operates a clamp that holds the conductor. Side wiring uses the screw terminal on the side of the device. Leviton illustrates both methods in its wiring guide. [Source]
Push-in wiring accepts the conductor directly into the rear terminal. Leviton calls its version Quickwire and also uses the term “backstab.” These overlapping names are why “back wire” on its own can be ambiguous in a quotation. [Source]
For the selected FAHINT model, the approved instructions specify conductor material, solid or stranded suitability, strip length and torque. The #14 AWG push-in marking does not specify the conductor range for the separate side/back terminals.
A purchase description you can use
For R15Q, write “R15Q, 15A 125V, standard duplex, side/push-in quick wire,” followed by the chosen finish and quantity. If the project calls for side/back wiring, compare R15 using the first row above.
When checking a sample, look at its model marking and rear terminals together. R15 and R15Q share a front presentation in our catalog, so a front photo alone cannot confirm the wiring version.
For a rectangular decorator face, D15Q offers side/push-in quick wiring with the same published #14 AWG limit for its 15A push-in terminal. It needs a different wallplate opening from this duplex pair. [Source]
Mixing both terminal types on one project
R15 and R15Q share a front presentation, so a photograph of a device face cannot tell an installer which one is in the carton. That matters on a project where one floor is wired in #14 and another in #12, because the terminal method, not the appearance, decides which line the electrician can use.
The practical rule is one terminal type per floor, written on the schedule. Mixing them in a single carton means the installer has to check the rear of every device before choosing a conductor, and that check rarely happens on a schedule that is already behind.
Push-in connections are faster to make; screw-clamp back wiring holds a wider conductor range and is the safer choice where the circuit may be reconfigured later. Neither is universally better, and the specifier usually knows which trade-off the project is buying.
For packing, cartons are labelled by the full model rather than the family, so a site can sort by terminal type without opening boxes. If both suffixes ship in one order, say so on the purchase order and the split is agreed with the packing instruction rather than assumed after the fact.
Sources & further reading
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