> For the complete documentation index, see [llms.txt](https://wiki.inels.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://wiki.inels.com/inels-home/inels-wireless/appendix-d-load-capacity.md). # Appendix D: Load capacity What each iNELS Wireless switch unit and dimmer can switch: current, power, lamp counts, and what the load categories mean. *Appendices. Use it before you wire a unit to a load.* This appendix gives the main load ratings of the switch units and dimmers. For the full list of load categories of a unit, see its datasheet, which is linked on the unit's page under Downloads. {% hint style="warning" %} **Read this first.** The lamp numbers below are results of ELKO EP's own tests and are **for information only**. Real results depend on the wiring, the cable length and the light source. **Do not connect inductive and capacitive loads at the same time.** A dimmer's real load depends on the power factor (cos φ) of the lamp: see section 4. {% endhint %} ## 1. Switch units (relays) There are two groups of relay contacts. Both are made of **AgSnO₂**, a material that suits loads with an inductive part (such as light ballasts) and short surges of current. | Group | Contact | Units | | ------------ | ------------ | ------------------------------------------------------------------------------------------------------------------------------ | | **A — 8 A** | AgSnO₂, 8 A | RFJA-32B-SL, RFSA-62B-SL, RFSAI-62B-SL, RFSAI-62B-SL/TH, RFSA-66M, RFSAI-11B-SL, RFSAI-61B-SL, RFSW-62, RFSW-262, RFSTI-11B-SL | | **B — 16 A** | AgSnO₂, 16 A | RFSA-61M, RFSA-61MI, RFSA-61B, RFSC-61N, RFUS-61 (for the RFUS-61 see AC-1 below) | #### What the unit can switch, in plain words | You want to switch | Group A (8 A contact) | Group B (16 A contact) | | ----------------------------------------------------- | --------------------- | -------------------------------------------- | | A resistive load (heater, plain lamp) — category AC-1 | **250 V / 8 A** | **250 V / 16 A** (RFUS-61: **250 V / 12 A**) | For lamps (incandescent, halogen, fluorescent), motors, transformers and DC loads, see the datasheet of your unit — for example the [RFSA-61M / RFSA-61MI datasheet](https://www.elkoep.com/media/import/Elko/RFx/RFSA-61M/EN/Datasheet_RFSA-61Mx.pdf) — or open the unit's page in [Switch units](/inels-home/inels-wireless/devices/switch-units.md) and use the datasheet link under Downloads. {% hint style="info" %} The [RFSAI-xxB-SL unit page](/inels-home/inels-wireless/devices/switch-units/rfsai-xxb-sl.md) gives the basic rating: 8 A / AC-1, 2000 VA / AC-1, peak 10 A for less than 3 s. For the RFSAI-62B-SL, both outputs together may carry 8 A. {% endhint %} ## 2. What the categories mean Load ratings are given in "categories of use". In plain words: | Category | What it is for | | ----------------- | ----------------------------------------------------------------------------------------------------------------------- | | **AC-1** | Loads with almost no coil in them, such as resistive heating (power factor 0.95 or better) | | **AC-5b** | Switching incandescent bulbs. A cold filament draws much more current than a hot one, so this rating is lower than AC-1 | | **AC-6a** | Switching transformers | | **AC-7b** | Motors in household appliances | | **AC-12 / AC-13** | Semiconductor loads with separating transformers | | **AC-14** | Small electromagnetic loads (up to 72 VA) | | **AC-15** | Larger electromagnetic loads (over 72 VA), such as contactor coils | | **DC-1** | Resistive loads on DC | | **DC-3 / DC-5** | Shunt motors and series motors on DC | | **DC-12** | Resistive loads and solid-state loads on DC | | **DC-13** | Electromagnets on DC | | **DC-14** | Electromagnetic loads on DC with a limiting resistor | ## 3. Dimmers #### Maximum power | Dimmer | Maximum load | | ------------------------------- | ----------------------------------------------------------------------------------------------------------- | | RFDEL-71B-SL | 300 W at cos φ = 1 | | RFDEL-71M | 600 W at 230 V · 300 W at 120 V | | RFDSC-71N (plug-in) | 200 W | | RFDEL-76M | 150 VA per channel at 230 V (75 VA at 120 V); all channels together up to 900 VA at 230 V (450 VA at 120 V) | | RFDA-73M/RGB, RFDAC-71B, RFDALI | See the unit's own page | #### How many lamps (ELKO EP test results) The table shows how many of each tested lamp a dimmer can carry. A dash means the combination was not tested for that dimmer. | Dimmer | LED bulb DLB-E27-806-2K7 | LED bulb DLB-E27-806-5K | LED spot DLSL-GU10-350-3K | LED spot LSL-GU10-350-3K | LED spot LSL-GU10-350-5K | LED panel LP-6060-3K | LED panel LP-6060-6K | | ----------------- | ------------------------ | ----------------------- | ------------------------- | ------------------------ | ------------------------ | -------------------- | -------------------- | | **RFDEL-71B-SL** | 11 | 11 | 25 | 13 | 13 | – | – | | **RFDALI-32B-SL** | – | – | – | – | – | 50 | 50 | For the lamp numbers of the RFDSC-71N see its [datasheet](https://www.elkoep.com/media/import/Elko/RFx/RFDSC-71N/EN/Datasheet_RFDSC-71N.pdf). #### LED strips and RGB strips The RFDA-73M/RGB is tested with strips. The values are lengths of strip, not numbers of lamps. | Dimmer | LED strip 7.2 W | RGB strip 14.4 W | | ---------------- | --------------- | ---------------- | | **RFDA-73M/RGB** | 3 × 8 m | 10 m | For other strips see the [RFDA-73M/RGB datasheet](https://www.elkoep.com/media/import/Elko/RFx/RFDA-73M/EN/Datasheet_RFDA-73M_RGB.pdf) and the [RFDA-73M/RGB page](/inels-home/inels-wireless/devices/receivers/dimmers/rfda-73m-rgb.md). ## 4. Power factor and dimmable lamps For all dimmer loads: * The maximum load depends on the inner construction of the dimmable LED and ESL lamp and on its **power factor cos φ**. * The dimmer's load capacity is given for cos φ = 1. The power factor of dimmable LED and ESL lamps is **between 0.95 and 0.4**. * **An approximate maximum:** multiply the dimmer's load capacity by the power factor of the lamp. Example: a dimmer rated 300 W at cos φ = 1 and a lamp with cos φ = 0.5 gives roughly 150 W of lamp power. Do not mix kinds of light sources, do not dim energy-saving bulbs that are not marked dimmable, and a wrong load-type setting can overheat the dimmer. How to set the load type is in [Tutorial 3](/inels-home/inels-wireless/tutorial-3-dimming-and-light-scenes.md). *** **See also:** [Appendix A — PROG button times](/inels-home/inels-wireless/appendix-a-prog-button-times.md) · [Appendix B — Functions by number of presses](/inels-home/inels-wireless/appendix-b-functions-by-number-of-presses.md) · [RFSAI-xxB-SL unit page](/inels-home/inels-wireless/devices/switch-units/rfsai-xxb-sl.md)