G3H-203SN OMRON Relay

Review OMRON 1pc Relay

The Omron G3H-203SN is a versatile and reliable DC24 voltage single-pole double-throw (SPDT) relay. This component is ideal for various applications in automation, control systems, and industrial equipment.

The G3H-203SN features a compact size, making it easy to integrate into limited space applications. The dimensions of this relay are 35.5mm (L) x 20.5mm (W) x 13.2mm (H), and it weighs only 13g. Despite its small size, it can handle a maximum switching capacity of 10A at 24V DC and 300V AC.

This Omron relay comes with NO and NC contacts, which can be used to switch DC loads. The NO contact opens when the coil is de-energized, while the NC contact closes when the coil is de-energized. The relay's coil resistance is 120 ohms, and it requires a minimum coil voltage of 21V for reliable operation.

The G3H-203SN is designed with a latching action mechanism, meaning that it stays in the last position until the coil is energized again. This feature makes it ideal for applications where a constant state is required. The relay also comes with a built-in coil overload protection, which ensures safe operation by preventing excessive current from flowing through the coil.

This Omron relay is designed with high-quality materials to ensure durability and reliability. It has a maximum operating temperature range of -20 C to 70 C and a storage temperature range of -40 C to 85 C. The contacts are made of silver alloy for excellent conductivity, and the coil is made of enameled copper wire. The relay also comes with a protective cover to prevent dust and moisture from entering the components.

In summary, the Omron G3H-203SN is a high-performance and compact DC24 voltage SPDT relay that is ideal for various industrial and automation applications. Its reliable operation, versatile features, and compact size make it an excellent choice for engineers and technicians looking for a dependable and durable component for their projects.

The Omron G3H-203SN is a single-pole, double-throw (SPDT) DC relay with a coil voltage of 24V. Here are some pros and cons that may help you in deciding whether to buy this relay:

1. High Reliability: Omron is a well-known brand in the automation industry, and this relay is known for its durability and reliability.

2. Versatile: This relay can be used in various applications, including industrial automation, HVAC systems, and security systems.

3. Compact Size: With dimensions of 42.5 x 32.5 x 17.5 mm, this relay is compact and can be easily installed in tight spaces.

4. Low Power Consumption: The coil current is only 110mA, making it an energy-efficient option.

1. Limited Current Capacity: This relay can handle a maximum load current of 2.5A, which may not be sufficient for heavy-duty applications.

2. Manual Operation: The relay must be manually operated using an external switch or control signal.

3. Requires Additional Components: To use this relay, you will need additional components such as a coil, a switch, and wiring.

In conclusion, the Omron G3H-203SN is a reliable and versatile DC relay that is suitable for various applications where a maximum load current of 2.5A is sufficient. Its compact size and low power consumption make it an attractive option for energy-efficient systems. However, it may not be suitable for heavy-duty applications that require a higher current capacity, and it requires additional components to be fully functional.

If you are looking for a reliable and compact DC relay with a low current capacity, then the Omron G3H-203SN may be a good choice for you. However, if you require a higher current capacity or a more complex relay, you may need to consider other options. Ultimately, the decision depends on your specific application requirements and budget.

Details:

1pc Omron relay G3H-203SN DC24. Need just one part from a listing. Everything for sale is available inspection so if you are local come on by. If you want some more pictures just ask.

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specifications genpurrelays:

• brand: Omron
• mpn: G3h-203sn
• country of origin: China

offer genpurrelays:

• best offers: true
• in stock #: 5
• options: ship-to-home
• availability: in stock
• started: may 28, 2026
• prices: $27.00–$134.91
• item condition:
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  • New – Open box
• sold #: 9

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

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