Intermatic T104M201 time switch mechanism with fireman switch, three-quarter view

Intermatic T104M201 mechanism, front view

Intermatic T104M201 24-Hour Time Switch Mechanism with Pool Heater Protection, 208-277V DPST

Name: Intermatic T104M201 24-Hour Time Switch Mechanism with Pool Heater Protection, 208-277V DPST
Brand: Intermatic
SKU: T104M201
Price: 168.05 USD
Availability: InStock

T104M201

$168.05

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Key Specs

T104 replacement mechanism with fireman heater cool-down switch

Voltage: 208-277 VAC
Switch: DPST, 40 A
Heater protection: 20-min cool-down
Dial: 24-hour

The Intermatic T104M201 is the T104 replacement mechanism with a built-in fireman switch: 24-hour dial, DPST 40 A per pole at 208-277 VAC, and heater contacts that open 20 minutes before the pump turns off so the heater cools down with water still flowing.

Before you order: mechanism only, no enclosure. Heater control output is 10 A, 250 VAC max; Intermatic notes it is not a substitute for the heater's pressure or flow switch.

Key Features

Built-in fireman switch
DPST, 40 A per pole
24-hour dial with manual override
Fits most Intermatic T100 enclosures

Who It's For

Owners replacing a T104 mechanism on a pool with a gas heater

What's Included

1 x T104M201 mechanism
1 ON / 1 OFF tripper set

About the Brand

Intermatic was founded in Chicago in 1891 as The Pratt & Englund Company and took the Intermatic name in 1972. It makes timers, controls, pool and spa equipment and surge protection for electrical, pool and spa, HVAC/R and retail markets.

Electrical

Voltage: 208-277 VAC, 60 Hz
Switch: DPST (2 circuits)
Resistive rating: 40 A, 120-480 VAC
Motor rating: 2 HP @ 120 VAC; 5 HP @ 240 VAC
Heater control output: 10 A, 250 VAC max

Timer

Heater protection: Heater contacts open 20 min before pump OFF
Dial: 24-hour
Manual override: Yes

General

Enclosure: None (mechanism only)
Operating temperature: -40°F to 130°F
Product line: T100 Series
Application: Commercial

Certifications

Certifications: cULus, cCSAus

Warranty

Warranty: 1-year limited

Intermatic covers the T104M201 with a 1-year limited warranty.

Free standard shipping on most orders in the lower 48
Authorized dealer, full manufacturer warranty
Price match on identical in-stock items
Real pool experts on the phone: (817) 587-4397

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Frequently Asked Questions

: Use our Request a Quote page and include the product, configuration, intended use, and delivery ZIP code. We reply within 12 business hours. You can also call or text us at (817) 587-4397.
: Yes — pay by wire transfer or Zelle and save 5% on your entire order. Those methods carry no card processing fees, so we pass the savings straight to you.
: Yes, on most orders. Free standard shipping is included on most orders delivered within the United States. Some oversized or freight-only items are quoted for your delivery address — the product page will tell you before you buy.
: Yes. Orders under $1,000 split into 4 interest-free payments with Shop Pay. Larger orders — most of our equipment — split into 3, 6, 12, 18, or 24 monthly payments at 0%–36% APR depending on your credit. Checking your options at checkout does not affect your credit score.
: Most eligible products have a 30-calendar-day return-request window. Written return authorization is required — do not ship a return before approval. Return freight on oversized items is at the buyer's cost and can be substantial.
: Coverage follows the applicable manufacturer's warranty. We are an authorized dealer for the brands we carry and can help route eligible warranty claims. Contact us with your order number, product details, and photos of the issue.
: Yes. We match the total delivered price for an identical in-stock item from an authorized U.S. retailer, before purchase or within 7 days after. Call or text (817) 587-4397 or email hello@pooldirectsupply.com to request a match.