H3M-A OMRON Relay

Review OMRON Time Relay 3a 250vac 100/110vac Timerange-0.5sec-5min Key-1sec-10min

The Omron H3M-A Relay is a versatile and reliable electrical switching device, ideal for various automation applications. This specific model is a 3A, 250VAC/100-110VAC timer relay, offering a range of timing functions from 0.5 seconds to 5 minutes.

The Omron H3M-A Relay is designed with a key-operated switch, allowing for manual control in addition to its automated timing functions. The key-operated switch ensures safety and prevents accidental operation, making it an excellent choice for critical applications.

The relay features a 1-second to 10-minute adjustable time range, providing flexibility to fit various application requirements. With a rated current of 3A, it can handle a reasonable electrical load without compromising its performance. The wide voltage range of 100-110VAC and 250VAC makes it suitable for use in different regions and industries.

The Omron H3M-A Relay is built with high-quality components and robust construction to ensure long-lasting reliability. It offers excellent contact life, ensuring consistent performance over time. The relay is also compact in size, making it easy to install and integrate into various automation systems.

In summary, the Omron H3M-A Relay is a versatile, key-operated timer relay that offers a wide voltage range, adjustable time range, and reliable performance. Its compact size, long contact life, and safety features make it an excellent choice for various automation applications where precise control and manual override are essential.

The Omron H3M-A relay is a 3A, 250VAC/100-110VAC timer relay with a timer range of 0.5 seconds to 5 minutes and key-on delays of 1 second and 10 minutes. Here are some potential pros and cons of buying this relay:

1. Versatile Timer Range: The relay's timer range of 0.5 seconds to 5 minutes makes it suitable for a wide range of applications where precise timing is required.

2. Key-On Delay: The key-on delays of 1 second and 10 minutes provide additional flexibility in controlling the relay.

3. Durable and Reliable: Omron is a well-known brand in the automation industry, and their relays are known for their durability and reliability.

4. Easy to Use: The relay is relatively easy to use, as it requires only a few wires to be connected for operation.

1. Limited Current Capacity: The relay's current capacity of 3A may not be sufficient for high-current applications.

2. Manual Reset: The relay does not have an automatic reset feature, which may require manual intervention to reset the timer after each cycle.

3. Complex Wiring: The relay may require complex wiring configurations depending on the application, which could make installation more challenging.

The Omron H3M-A relay is a versatile and reliable timer relay suitable for applications where precise timing is required. Its wide timer range and key-on delays provide additional flexibility, but its limited current capacity and manual reset may be drawbacks for some applications. Ultimately, the decision to buy this relay will depend on the specific requirements of the application and the user's preferences.

If the application requires a timer relay with a wide timer range, key-on delays, and the current capacity is sufficient, then the Omron H3M-A relay could be a good choice. However, if the application requires a higher current capacity or an automatic reset feature, then other relay options may be more suitable. It is recommended to carefully evaluate the application requirements and consider all available options before making a purchase decision.

Details:

Omron time relay h3m series-a, 3a non inductive load 250vac 100/110vac, voltage range 85% to 110% of rated supply accuracy 1% max operating time, time-range- 0.5 sec 5 min, set key 1 10 life expectancy 20 million operations mechanical 100,000 electrical min temp rating operating- -10 c 50. Unknown if working, unable to test, 4x3x2 1lbs kl-29428-sk498- 1 -e 3a non inductive load.

specifications genpurrelays:

• brand: Omron
• mpn: H3m-a
• mounting style: Plug-in/on
• current rating: 1-15 A
• type: Time Relay
• current type: Ac/dc
• unit type: Unit
• number of pins: 8-pin
• coil voltage: 201-250 V
• features: Timer
• application: Commercial, Control Equipment Panels, Industrial
• country of origin: Japan

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• policy: no returns

offer genpurrelays:

• started: february 18, 2026
• availability: in stock
• options: ship-to-home
• prices: $20.00–$62.07
• item condition:
  • For parts or not working
  • New
• in stock #: 5
• best offers: true
• sold #: 7

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• type: fixed
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• category: Business & Industrial > Electrical Equipment Supplies > General Purpose Relays

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