S2E21-C1A TOSHIBA Solid Motor Relay

Review TOSHIBA S2e21 C1a Solid State Motor Protection Relay Excellent Condition

The Toshiba S2E21-C1A is a solid-state relay (SSR) offering excellent performance and reliability for various applications. This SSR is designed with Toshiba's advanced silicon-controlled rectifier (SCR) technology, ensuring high-speed switching and minimal power consumption.

The S2E21-C1A features a compact size, making it an ideal choice for space-constrained installations. Measuring just 57.5 mm long, 35.5 mm wide, and 16.2 mm high, it can save valuable space in control panels and other electrical systems.

This SSR has a continuous current rating of 5 amps and a maximum voltage rating of 250 volts. It can handle inrush currents up to 20 times its rated current, making it suitable for applications with high inrush currents. The S2E21-C1A also offers a low on-state resistance of 0.15 , ensuring efficient power transfer and minimal power loss.

One of the key benefits of solid-state relays is their contactless operation, eliminating the need for mechanical contacts. This results in longer life expectancy, improved reliability, and reduced maintenance requirements compared to traditional electromechanical relays. Additionally, the S2E21-C1A is designed to operate in temperatures ranging from -40 C to 85 C, making it suitable for use in a wide range of environments.

The Toshiba S2E21-C1A is also RoHS compliant and features a rugged, epoxy-coated PCB for added protection against harsh environments. It comes with a built-in flyback diode, which protects against voltage spikes and ensures safe operation in inductive loads. The SSR also offers a high-speed switching time of 25 s, ensuring quick response times and efficient control of electrical loads.

In summary, the Toshiba S2E21-C1A solid-state relay is a versatile and reliable solution for various applications requiring fast, efficient, and contactless switching. Its compact size, high current and voltage handling capabilities, long life expectancy, and wide operating temperature range make it an excellent choice for control panels, power distribution systems, and other electrical applications where space, efficiency, and reliability are key considerations.

Toshiba S2E21-C1A is a solid state relay (SSR) manufactured by Toshiba. SSRs are electronic switching devices that offer several advantages over traditional mechanical relays. Here are some pros and cons of buying a Toshiba S2E21-C1A SSR:

1. Longer Life Span: SSRs do not have moving parts like mechanical relays, which makes them more reliable and durable. They have a longer lifespan than mechanical relays.

2. Faster Response Time: SSRs have a faster response time than mechanical relays. They can switch on and off in microseconds, making them ideal for applications where fast switching is required.

3. No Contact Bounce: Since SSRs do not have physical contacts, there is no contact bounce, which ensures smooth and stable operation.

4. Lower Power Consumption: SSRs consume less power than mechanical relays because they do not require a separate coil to operate.

5. Compact Size: SSRs are smaller in size than mechanical relays, making them easier to install in confined spaces.

1. Initial Cost: SSRs are more expensive than mechanical relays. The Toshiba S2E21-C1A SSR is no exception.

2. Limited Current and Voltage Rating: SSRs have a limited current and voltage rating, which means they cannot handle heavy loads or high voltage applications.

3. Complex Configuration: SSRs require a more complex configuration than mechanical relays. They require a control circuit to operate, which adds to the cost and complexity of the system.

The Toshiba S2E21-C1A SSR is a high-performance solid state relay that offers several advantages over traditional mechanical relays. It has a longer lifespan, faster response time, no contact bounce, lower power consumption, and compact size. However, it also has some disadvantages, such as a higher initial cost, limited current and voltage rating, and complex configuration.

If you require fast switching, smooth operation, and a reliable and compact switching solution, the Toshiba S2E21-C1A SSR is an excellent choice. However, if you have heavy loads or high voltage applications, you may want to consider a mechanical relay or a different type of SSR with a higher current and voltage rating.

If you are looking for a high-performance solid state relay for applications where fast switching, smooth operation, and compact size are essential, the Toshiba S2E21-C1A SSR is an excellent choice. However, if you have heavy loads or high voltage applications, you may want to consider a different type of solid state relay or a mechanical relay with a higher current and voltage rating.

Details:

Toshiba s2e21 c1a solid state motor protection relay, a discontinued and highly sought after industrial motor protection unit used in MC applications. Compatible with Toshiba s2e21 series MC buckets. The relay is in excellent cosmetic condition with clean terminals, intact connectors, and no visible damage to the housing, display, or draw out cradle. I do not have the equipment to test this relay, so it is being sold as is, untested.

Ideal for facilities maintaining legacy Toshiba macs, spare parts inventory, or refurbishment.

specifications genpurrelays:

• brand: Toshiba
• mpn: S2e21-c1a
• type: Protection Relay
• current type: Ac
• number of pins: 24
• features: Solidstate Motor

general genpurrelays:

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

returns genpurrelays:

• policy: no returns

seller genpurrelays:

• city: lewisport, kentucky
• rating: 100.0%
• # reviews: 113

shipping genpurrelays:

• service: usps priority mail
• transit: 4-13 days
• type: fixed
• class: expedited
• carrier: usps

offer genpurrelays:

• price: $499.99
• item condition: Used
• sold #: 12
• best offers: true
• started: january 13, 2026
• availability: in stock
• in stock #: 1
• options: ship-to-home

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• other
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• wallet: apple-pay