Product Description
RRST-HN4B-WH Lutron RadioRA 3 Sunnata RF Hybrid 4-Button Keypad (White) combines a Sunnata dimmer and a 4-button keypad in one device for elegant scene control and local load dimming—perfect for retrofits where you don’t want two separate controls. Large, backlit buttons with status LEDs, a front-accessible service switch (FASS), and field-changeable engraved buttons deliver a premium, flexible user experience.
At-a-Glance
- Type: Sunnata RF hybrid keypad + dimmer (4-button)
- Voltage: 120V~ 50/60 Hz
- Wiring: Hot & neutral required
- Typical Power Use: 0.5 W (1.5 W max)
- Default Phase Mode: Reverse phase (programmable)
- Regulatory: cULus, NOM, FCC, IC
- Environment: Indoor, 32–104 °F (0–40 °C), <90% RH
- Wallbox: U.S. single-gang; 3.5" deep recommended (2.5" min)
Free shipping on orders over $250
Benefits
- Two-in-one convenience: Scene keypad and local dimmer in a single gang—cleaner look and easier retrofit.
- Fast commissioning: Internal dimmer works from the buttons prior to programming; customize scenes later.
- Reliable performance: RadioRA 3 RF with status LEDs and adjustable LED brightness for low-light visibility.
- Tailored aesthetics: Field-changeable engraved button kits and designer wallplate compatibility.
Key Features
- 4-button layout: Default printing supports On / 50% / Off / Off; programmable to scenes or room presets.
- Raise/Lower support: Buttons can be configured to adjust last-pressed or programmed devices.
- Front Accessible Service Switch (FASS): Safely remove power for lamp replacement.
- Advanced dimming: High-/low-end trim and phase selection optimize LED, ELV, MLV, and incandescent loads.
- Low standby power: ~0.5 W typical.
- Personalization: Includes credit for one custom-engraved replacement button kit.
Specifications
Technical Specs
| System | RadioRA 3 (Sunnata RF) |
| Voltage / Frequency | 120V~ 50/60 Hz |
| Wiring | Neutral required; line, load, neutral, ground |
| Power Consumption | 0.5 W typical (1.5 W max) |
| Phase Mode | Reverse-phase default; forward- or reverse-phase selectable |
Performance Specs (Load Capacity)
| Load Type | Not Ganged | End of Gang | Middle of Gang | Notes |
|---|---|---|---|---|
| LED/CFL | 150 W | 100 W | 100 W | Either phase mode |
| Incandescent/Halogen | 450 W | 350 W | 250 W | Either phase mode |
| ELV (with LEDs or halogen) | 450 W | 350 W | 250 W | Reverse phase |
| MLV (with halogen) | 350 VA (≈250 W) | 250 VA (≈200 W) | 200 VA (≈150 W) | Forward phase |
| Dimmable Fluorescent Ballast | 2.08 A (≈350 VA) | 1.67 A (≈250 VA) | 1.25 A (≈200 VA) | Forward phase |
Physical Specs
| Dimensions | 4.69 in H × 2.94 in W × 1.39 in D |
| Wallplate | Lutron designer-opening wallplate (sold separately) |
Compliance & Safety
| Listings | cULus, NOM, FCC, IC |
| ESD / Protection | Meets IEC 61000-4-2; RTISS circuitry for line-voltage variations |
Application Examples
- Whole-room scene control with local dimming in kitchens, living areas, and bedrooms
- Retrofits where two-gang space is limited—replace separate dimmer + keypad with one device
- Light commercial spaces using RadioRA 3 for scenes and schedules
Installation Tips
- Confirm neutral: Hybrid keypads require a neutral connection.
- Wallbox depth: Use a 3.5" deep box when possible; 2.5" is the minimum.
- Use FASS for service: Pull the Front Accessible Service Switch to safely change lamps.
- Programming: After wiring, default buttons operate the internal dimmer—final scenes are set in software.
- RF design: For best performance, place within about 25 ft of at least two compatible RadioRA 3 devices.
FAQ
What is a Sunnata RF hybrid keypad?
It is a combination of a Sunnata dimmer and scene keypad in a single gang device, providing local load control and multi-button scene activation.
Does RRST-HN4B-WH require a neutral?
Yes. A neutral connection is required for all applications.
What loads can the built-in dimmer handle?
Up to 150 W LED/CFL or 450 W incandescent/halogen when not ganged; derates when ganged. ELV, MLV, and fluorescent are supported within listed ratings.
What is the default button behavior?
The 4-button model defaults to On / 50% / Off / Off and can be reprogrammed as scenes or presets.
Which phase mode does it use?
Reverse phase by default; phase selection is programmable to match the load type.
Can I change the button labels later?
Yes. It includes a credit for one custom-engraved replacement button kit you can redeem via RadioRA 3 setup software.
What are the environmental limits?
Indoor use, 32–104 °F (0–40 °C), up to 90% non-condensing humidity.
Is a special wallplate required?
Use Lutron designer-opening wallplates; they snap on with no visible screws (sold separately).
