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Digital in-wall auto-off timer · 20A, 120-277VAC/12-28VDC · single-pole/3-way, no neutral · Intermatic EI400WC
SKU: EI400WC
Digital in-wall auto-off timer for lighting, fans, pumps and other compatible loads. The EI400WC provides adjustable countdown timing from 1 second to 24 hours, supports single-pole and true 3-way control, and installs without a neutral for easier retrofit work.
What this product is for
The Intermatic EI400WC is a digital in-wall auto-off timer used to shut off connected loads after a selected interval. It is commonly used for lights, exhaust fans, circulation pumps, heaters and other compatible loads where automatic shut-off helps reduce run time and nuisance callbacks.
Use for
- Indoor or outdoor lighting circuits controlled from an in-wall switch location
- Bathroom fans, utility room fans and similar timed ventilation loads
- Pool, spa or circulation equipment where a countdown shut-off is preferred
- Retrofit switch replacements where no neutral is present
- Single-pole or true 3-way applications using a standard mechanical remote switch
Avoid for
- Applications where incorrect shut-off could create a safety risk
- Loads outside the published voltage or load ratings
- Installations requiring a standard scheduling timer rather than a countdown auto-off timer
- Use with sunlamps, saunas or similar applications where the manufacturer notes timing errors could cause personal injury
Best for
Best for electricians and maintenance teams needing a countdown timer with broad load compatibility, no-neutral retrofit capability and true 3-way control. It is a practical choice when replacing spring-wound wall timers with a digital unit offering intervals from 1 second up to 24 hours.
Installed in
Typically installed in a standard wall box with decorator-style wall plate applications in residential, commercial and light industrial spaces. The body is approximately 4-1/8 in H x 1-3/4 in W x 1.2 in D (about 105 x 44 x 30 mm), so box fill and conductor space should be checked before retrofit installation.
Why this product exists
This timer exists to provide automatic shut-off without relying on a neutral conductor, making it useful for retrofit switch locations. It also gives more precise timing than mechanical spring timers and stores settings in non-volatile memory, with a replaceable CR2 lithium battery for timekeeping during outages.
Compared with similar products
Compared with mechanical countdown timers, the EI400WC offers digital interval selection from 1 second to 24 hours, optional audible or visual end-of-interval warning, and lockable settings. Compared with some electronic wall timers, it supports both AC and DC loads and can be used in true 3-way switching without requiring a neutral conductor.
Typical buying guidance: a no-neutral timer is commonly chosen for retrofit work where pulling a neutral would add labour. Actual compatibility depends on the connected load type, wiring method and local electrical code.
Specifications
- Brand: Intermatic
- Manufacturer part number: EI400WC
- Product type: Digital in-wall auto-off timer
- Series/family: EI400 Series
- Colour: White
- Current rating: 20A resistive
- Voltage rating: 120-277VAC, 12-28VDC
- Frequency: 50/60 Hz
- Timing range: 1 second to 24 hours
- Switching: Single-pole and true 3-way compatible
- Neutral required: No
- Battery: Replaceable CR2 lithium battery
- Memory: Non-volatile memory retains settings
- Load compatibility: Incandescent, fluorescent, CFL, LED, resistive, ballast, motor and DC loads within rated limits
- Motor rating: 1 hp at 120V AC; 2 hp at 240V AC
- Temperature range: 32 to 122°F (0 to 50°C)
- Dimensions: approximately 4-1/8 in x 1-3/4 in x 1.2 in (105 x 44 x 30 mm)
- Certifications: cULus listed / CSA certified listings reported by distributors
- Warranty: 5 years
Minimum Order $20
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(Contractor Accounts)
Standard Shipping-Free on orders over $249 in Metropolitan Areas / $499 in Rural Areas
(All Other Accounts)
Standard Shipping-Free on orders over $499
Minimum Order Is $20
Freight Surcharge Apply To Oversized/Over-Weight Items(Not Limited To):
- PVC and EMT Pipe
- Wire and Cable
- Items over 48 inches in length
Surcharges are applied to items on an individual basis regardless if the rest of the order meets prepaid levels. If a freight line appears at the time of check out it only applies to the Items carrying a surcharge and not the entire basket of goods.
Shipping Options:
- A courier can deliver to your home, office, or your job site
- Pick up at local depot near you (applies to the following locations)
Edmonton Warehouse 8135 Roper Rd Edmonton, T6E 6S4, AB
Burnaby Warehouse 5608 Goring St Burnaby, V5B 3A3, BC
Orders are typically delivered within two to eleven business days. The transit time begins the first full shipping day after your order leaves our warehouse. Please allow an additional 2-5 days for delivery to remote locations, additional fees may apply.
THE FOLLOWING APPLIES TO STANDARD SHIPPING OPTIONS
- We cannot deliver to P.O. boxes.
- A signature may be required for shipments over $500.
- No weekend delivery.
- Wire & cable, EMT or PVC conduit, tube lamps 4ft or greater, and 10ft ground rods & mast pipes have special conditions.
Standard Shipping cost on orders less than $499
Total shipping cost = "Per Shipment" cost + "Per Item" cost. The "per item" cost is listed in terms of price per pound.
Product Group | Per Shipment* | Per Item |
|---|---|---|
Boxes | $6.99 | $1.49/lb |
Conduit & Raceway | $149.99 | $2.49/lb |
Connectors & Fittings | $5.99 | $1.19/lb |
Data & Structured Home | $5.99 | $1.19/lb |
Distribution Equipment | $5.99 | $1.19/lb |
Emergency Lighting | $6.99 | $1.49/lb |
Heating & Ventilation | $6.99 | $1.49/lb |
Lighting Controls | $5.99 | $1.19/lb |
Lighting Indoor | $6.99 | $1.49/lb |
Lighting Outdoor | $6.99 | $1.49/lb |
Tools | $4.99 | $.99/lb |
Wire & Cable | $49.99 | $2.29/lb |
Wiring Devices | $5.99 | $1.19/lb |
Any combination of the above items | Highest applicable per-shipment charge | As above |
Effective Date: August, 15, 1998
At Evolt Electrical Supply, customer satisfaction is our top priority. Please review our return policy below:
Returns
Defective Items:
- If you receive a defective item, you may return it for a replacement or refund within 30 days of purchase.
- To initiate a return, please contact our customer service team with your order number and a description of the defect.
Non-Defective Items:
- We do not accept returns for non-defective items. All sales are final once the product is shipped or ordered from the manufacturer. In certain circumstances we may amend this so feel free to contact our customer service team.
Return Process
Authorization:
- Before returning any items, you must obtain a Return Merchandise Authorization (RMA) number from our customer service team. Returns without an RMA number will not be accepted.
- Backordered items can not be cancelled if the item is in transit from the manufacturer, contact us to review.
Shipping:
- Customers are responsible for the return shipping costs. We recommend using a trackable shipping service or purchasing shipping insurance.
Condition:
- Returned items must be in their original packaging and condition. Any items returned damaged due to improper packaging or misuse will not be eligible for a refund or replacement.
Refunds
- Once we receive and inspect your returned item, we will notify you of the approval or rejection of your refund.
- Approved refunds will be processed within [7] business days and a credit will automatically be applied to your original method of payment.
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