SMFH01

The Siemens SMFH01 heater element overload relay is a crucial safety component for electric water heating systems. This relay is designed to protect the heater element from overloading and potential damage due to overheating.

The SMFH01 is a thermostatic relay, which means it responds to temperature changes. When the temperature of the water or surroundings reaches a certain threshold, the relay opens, cutting off power to the heater element. Once the temperature drops below the threshold, the relay closes, allowing power to flow to the element again.

The relay housing is made of high-quality, thermally resistant material, ensuring durability and longevity in demanding heating environments. The relay is also sealed against moisture and dust, making it suitable for use in humid or industrial settings.

The SMFH01 is designed to work with heater elements up to 3000 watts and has a thermal trip rating of 87 degrees Celsius. It features a clear, easy-to-read indicator light that shows when the relay is in the on or off position.

Installation of the SMFH01 is straightforward and can be done by a qualified electrician. The relay comes with mounting screws and a gasket to ensure a secure installation. The terminal connections are labeled for easy identification and are designed to accept up to 16 gauge wires.

Overall, the Siemens SMFH01 heater element overload relay is an essential safety component for electric water heating systems. Its high-quality construction, easy installation, and reliable temperature sensing make it a top choice for professionals and DIY installers alike.

The Siemens SMFH01 heater element overload relay is a protective device designed to prevent overloading and potential damage to heating elements in various applications. Here are some pros and cons of buying this particular relay:

1. Reliability: Siemens is a well-known and reputable brand in the electrical industry, and the SMFH01 overload relay is built to meet high-quality standards.

2. Protection: The relay provides overload protection for heating elements, preventing potential damage and ensuring safe operation.

3. Easy installation: The SMFH01 is designed for easy installation, with clear markings and a user-friendly design.

4. Versatility: This relay can be used in a variety of heating applications, including water heaters, electric resistance heaters, and under-floor heating systems.

5. Durability: The SMFH01 is built to withstand harsh environments and is resistant to water and dust.

1. Cost: Compared to some other overload relays on the market, the SMFH01 can be more expensive.

2. Size: The relay is larger than some other options, which may make it less suitable for tight spaces.

3. Complexity: While the relay is designed to be user-friendly, some users may find the wiring diagram or installation instructions confusing.

In conclusion, the Siemens SMFH01 heater element overload relay is a reliable and durable protective device that provides essential overload protection for heating elements in various applications. While it may be more expensive and larger than some other options, its versatility, ease of installation, and reputation for quality make it a worthwhile investment for those who prioritize safety and reliability in their heating systems.

Recommendation: If you are looking for a high-quality and reliable overload relay for your heating application, the Siemens SMFH01 is an excellent choice. While it may come with a higher price tag, its durability, ease of installation, and versatility make it a worthwhile investment for ensuring the safe and efficient operation of your heating system.

Details:

Lot of 8 new Siemens SMFH01 heater element overload relay free shipping, in box, comes as shown - tape on outer box's.

specifications maxohvac:

• brand: Siemens
• mpn: Smfh01
• part type: Heater
• non-domestic product: No
• country/region of manufacture: Mexico

general maxohvac:

• category: Business & Industrial > Hvac Refrigeration

shipping maxohvac:

• type: fixed
• transit: 6-12 days
• class: standard, expedited
• carrier: usps
• service: usps ground advantage, usps priority mail

payments maxohvac:

• credit card: discover
• wallet: paypal
• other

returns maxohvac:

• policy: no returns

seller maxohvac:

• rating: 98.3%
• city: wilmington,
• # reviews: 671

offer maxohvac:

• options: ship-to-home
• started: august 1, 2025
• in stock #: 5
• prices: $3.88–$399.99
• item condition:
  • New – Open box
  • New
  • Open box
  • Used
• availability: in stock
• best offers: true
• sold #: 15

Also Viewed:

• DXR2-M18-101B: STATION BOX, Siemens
• 587-180: SENSOR, Siemens
• 186-0090: BOX CONTROL, Siemens
• 533-377-18: SENSOR PROBE, Powers Siemens Bldg Tech
• 599-01050: ACTUATOR VALVE, Siemens
• GBB131.1P: AIR ACTUATOR, Siemens
• 3UB8523-5EW2: , Siemens
• SQM50.461R1G3: , Siemens
• 550-400P10: BOX, Landis Gyr
• 57-0001: REMOTE BULB THERMOSTAT, Siemens Landis Gyr
• YJ588: OIL GUARD, Siemens