Product Description
Intermatic ETW3CP Connect 365-Day Programmable Smart Wi-Fi Timer is a three-circuit (3×SPDT) electronic time switch with app-based setup, 365-day/astronomic/holiday schedules, and auto-voltage 120–277 VAC operation. The Type 3 indoor/outdoor enclosure, zero-crossing relays, and non-volatile memory make it a reliable choice for lighting, pumps, and general load control.
ETW3CP – Connect 365-Day Smart Wi-Fi Timer, 120–277 VAC, 3×SPDT
Three independently configurable circuits (pair 1&2 for DPDT), app control via Intermatic Connect, 256 events, 64 holiday blocks, CR2032 time backup, and LED-compatible outputs.
- Input Voltage: 120–277 VAC, 50/60 Hz (auto-select)
- Circuits / Relays: 3× SPDT; zero-crossing
- Load Ratings (NO): 30 A general; 16 A electronic ballast/LED; 1 HP @120 V, 2 HP @240 V
- Enclosure: Type 3 indoor/outdoor, 7.5" × 8.875" × 3"
Free shipping on orders over $250
Benefits
- Powerful scheduling: 365-day, astronomic, and holiday programming with up to 256 events keeps sites on an exact schedule.
- Flexible control: Three SPDT outputs handle mixed loads and can pair into DPDT for two-pole applications.
- Install anywhere: Rugged Type 3 enclosure and -40 °F to 158 °F operating range suit indoor or outdoor locations.
- App-based setup: Intermatic Connect app enables local Bluetooth® onboarding and cloud control for remote overrides.
Key Features
- Auto-voltage 120–277 VAC with 7 W max power consumption
- Zero-crossing relays to extend contact life
- Non-volatile EEPROM retains programming indefinitely; CR2032 battery maintains timekeeping (up to 10 years of protection)
- Up to 256 set points, 64 holiday blocks, and automatic DST
- LED compatible; 16 A electronic ballast per circuit (NO)
- Line-voltage remote inputs for local overrides (120–277 VAC)
Specifications
Technical Specs
| Operating Voltage | 120–277 VAC, 50/60 Hz (auto-select) |
| Circuits / Contacts | 3 × SPDT (pair Ckt 1&2 for DPDT) |
| Set Points / Events | Up to 256; minimum ON/OFF 1 minute |
| Holiday Blocks | Up to 64 with schedule capabilities |
| Scheduling Modes | 365-day, Astronomic, Holiday; Automatic Daylight Saving Time |
| Memory / Time Backup | Non-volatile EEPROM; CR2032 lithium (backup protection up to 10 years) |
| Connectivity | Local Bluetooth® onboarding; Wi-Fi/cloud via Intermatic Connect app |
| Power Consumption | 7 W (max) |
Performance Specs
| General Purpose (NO / NC) | 30 A (NO); 10 A (NC) |
| Electronic Ballast / LED | 16 A per circuit (NO) |
| Motor Load (NO) | 1 HP @120 VAC; 2 HP @240 VAC; LRA 96 A @120 V / 90 A @240 V |
| Operating Temperature | -40 °F to 158 °F (-40 °C to 70 °C) |
| Overvoltage Category / Pollution Degree | CAT III / PD 3 |
Physical Specs
| Enclosure | Type 3 indoor/outdoor plastic |
| Dimensions (H × W × D) | 7.5" × 8.875" × 3" |
| Knockouts | (2) bottom, (1) back, (1) left, (1) right – 1/2"–3/4" combination |
| Terminals / Wire Size | Screw terminals; #14–#8 AWG copper (105 °C) |
Compliance & Warranty
| Listings | cULus; FCC; RoHS |
| Proposition 65 | Nickel |
| Warranty | 3-Year Limited |
Application Examples
- Parking lots, façades, and sign lighting control (indoor/outdoor)
- Machinery and pump scheduling with manual/remote overrides
- Area, hallway, and site LED lighting with 365-day/holiday schedules
Installation Tips
- Mounting: Use the raised bosses in the back of the enclosure; allow door to swing fully.
- Conduit: For outdoor/wet locations, use rain-tight hubs that meet UL514B.
- Wiring: Strip 1/2" and use #14–#8 AWG copper conductors rated 105 °C; torque terminal screws to 10.6–15.6 lb-in.
- Remote inputs: Line-voltage override terminals accept 120–277 VAC; circuits 1&2 can be paired for DPDT applications.
- Safety: Disconnect power before servicing; keep enclosure door closed when not servicing.
Frequently Asked Questions
How many loads can ETW3CP control?
Three independent SPDT circuits. Circuits 1 and 2 can be logically paired for DPDT applications.
What scheduling options are available?
365-day, astronomic, and holiday programming with up to 256 events and 64 holiday blocks; automatic Daylight Saving Time is included.
Will it work with LED lighting?
Yes. Each normally open circuit supports up to 16 A electronic ballast/LED loads.
What happens if power is lost?
Programming is stored in non-volatile memory and a CR2032 battery provides timekeeping backup (protection up to 10 years).
What are the load ratings?
30 A general purpose (NO), 10 A (NC), and motor loads up to 1 HP @120 V or 2 HP @240 V (NO).
Is the enclosure outdoor-rated?
Yes. It’s a Type 3 indoor/outdoor plastic enclosure with knockouts on bottom, sides, and back.
What input voltage does it require?
Auto-selecting 120–277 VAC, 50/60 Hz—no jumpers required.
Can I override loads locally?
Yes. Line-voltage remote inputs allow overrides, and the app provides remote ON/OFF control.
