INTERMATIC 143RC140 Function Stepper Relay 078275051645

( Brand: Intermatic ), ( Manufacturer Part Number: 143RC140 ), ( Type: Relay ), ( UPC: 078275051645 )

Review INTERMATIC Four Function Stepper Relay

The Intermatic 143RC140 Function Stepper Relay is a versatile and reliable electromechanical switching device designed for various applications where precise control over the number of electrical pulses is essential. This stepper relay is ideal for use in HVAC systems, water treatment plants, and other industrial automation processes.

The Intermatic 143RC140 is a 4-channel, normally open (NO), stepper relay. Each channel can be operated independently, providing the user with the ability to control multiple loads with just one relay. Each channel can handle up to 10 amps of current and 120 volts of AC or DC power. This makes it suitable for low to medium power applications.

The stepper relay operates on a 5-volt trigger signal. The trigger signal determines the number of steps or pulses each channel will make when activated. The relay provides 16 steps per revolution, allowing for precise control over the switching position. The user can easily adjust the number of steps per revolution by changing the trigger signal frequency.

The Intermatic 143RC140 is a rugged and durable device, designed to withstand harsh industrial environments. It is constructed with high-quality materials, including a die-cast aluminum housing and gold-plated contacts. The relay also features an over-temperature protection system, which helps prevent damage from excessive heat build-up.

The relay comes with a built-in test switch, making it easy to check the functionality of each channel. It also has a compact size of 3.9 x 2.3 x 1.2 inches, making it easy to install in confined spaces. The Intermatic 143RC140 is compatible with various control systems, including PLCs and microcontrollers, making it a versatile solution for a wide range of applications.

In summary, the Intermatic 143RC140 Function Stepper Relay is a high-performance, versatile, and durable switching device that offers precise control over the number of electrical pulses in various industrial applications. Its rugged construction, compact size, and built-in test switch make it an excellent choice for automation projects where reliability and accuracy are crucial.

The Intermatic 143RC140 Function Stepper Relay is a commonly used relay in various automation applications. Like any other electrical component, it has its advantages and disadvantages. Here's a discussion of each:

1. Function Stepper Relay: The Intermatic 143RC140 is a function stepper relay. This means that it can be programmed to perform specific functions based on the number of steps it receives. It's an excellent choice for applications where precise control is required.

2. High Contact Rating: This relay has a high contact rating of 10A at 125V AC or 250V AC. It can handle a good amount of current, making it suitable for various industrial applications.

3. Durable Construction: The relay's housing is made of a rugged, die-cast aluminum material, which makes it resilient against environmental conditions and mechanical shocks.

4. Easy to Install: The Intermatic 143RC140 is a compact relay, and its termination configuration is suitable for most applications. Installation is typically straightforward, saving time and effort.

1. Complexity: Programming the function stepper relay can be a complex process, especially for those unfamiliar with the concept. It may require additional time and expertise to set up correctly.

2. Limited Operating Temperature: The relay's operating temperature range is between -20 C to 60 C. If the application environment exceeds these temperatures, it may not function optimally or could even fail.

3. Quiescent Current Consumption: The relay has a relatively high quiescent current consumption of approximately 160mA. This higher power consumption may result in increased energy costs and could impact the overall efficiency of a system.

The Intermatic 143RC140 Function Stepper Relay is a robust and versatile component with a high contact rating, durable construction, and precise control capabilities. However, its complex programming process, limited operating temperature range, and high quiescent current consumption are factors that should be considered before making a purchase.

If your application requires precise control and the ability to handle a high current load, the Intermatic 143RC140 Function Stepper Relay could be an excellent choice. However, it's essential to weigh the advantages and disadvantages carefully and ensure that the complex programming process and high quiescent current consumption are acceptable for your specific use case. If the complexity or power consumption is a concern, alternative relays with simpler termination configurations and lower power requirements might be more suitable.

Details:

Intermatic 143RC140 Four Function Stepper Relay. This is a brand new part comes with full manufacturer warranty.

part #: 143rc140 prices

• $175.64-$197.25

specifications poolmaintgo:

• brand: Intermatic
• mpn: 143rc140
• type: Relay
• upc: 078275051645

seller poolmaintgo:

• rating: 99.9%
• city: Tucson, Arizona
• # reviews: 46807

returns poolmaintgo:

• policy: Returns Accepted
• time: 30 Days
• method: Money back
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• cost: $9.09
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• options: Ship-to-home
• availability: In Stock
• quantity: 1
• started: June 4, 2026
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• condition: New

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