S8-RLY-INT-L PENCOM DESIGN Relay Board

Review PENCOM DESIGN 8-channel Serial Relay Board

The Pencom Design S8-Rly-Int-L 8-Channel Relay Board is a versatile and powerful solution for controlling electrical appliances or automating systems using microcontrollers or single-board computers. This relay board is an excellent choice for hobbyists, engineers, and DIY enthusiasts looking to build projects with multiple relay switches.

Measuring 110mm x 53mm x 18mm, the Pencom S8-Rly-Int-L board features eight opto-isolated relay channels, each capable of handling a maximum load of 30A at 250V AC or 30V DC. The opto-isolated design ensures electrical isolation between the control circuit and the load, making it safe to use and eliminating the risk of electrical interference or shorts.

Each channel consists of an optocoupler, a diode, and a relay with a coil. The optocoupler receives the control signal from the microcontroller or the single-board computer via an input pin. When the input pin is activated, the optocoupler sends a signal to the relay, which then switches the corresponding load on or off.

The Pencom Design S8-Rly-Int-L 8-Channel Relay Board comes with eight status LEDs, one for each channel, indicating the current status of the relay switch. The board also includes eight 1k pull-up resistors to ensure proper operation of the input pins.

The relay board uses the standard SPST NO (Single Pole Single Throw Normally Open) type relays. Each relay has a coil voltage requirement of 12V DC, and the coil current is approximately 250mA. The board includes a 12V DC power adapter to power the relays, but it can also be powered by an external power source.

In summary, the Pencom Design S8-Rly-Int-L 8-Channel Relay Board is a feature-rich and reliable solution for controlling multiple electrical loads using a microcontroller or a single-board computer. Its opto-isolated design ensures safety and eliminates electrical interference, making it an excellent choice for a wide range of applications.

The Pencom Design S8-Rly-Int-L 8-channel relay board is a popular choice for those seeking to control multiple electrical devices using a microcontroller or a PC. Here are some pros and cons of buying this relay board:

1. Easy to Use: The Pencom relay board comes with a user-friendly design, making it easy for beginners to get started. It has a clear labeling system for each relay pin, and the board size is compact, making it convenient to use in various projects.

2. Versatile: The 8-channel relay board can be used to control a wide range of electrical devices, including motors, solenoids, lamps, and others. It can also be used in various applications, such as automation, robotics, home automation, and more.

3. High Current Capacity: Each relay on the Pencom board can handle a maximum current of 30A and a maximum voltage of 250VAC/30VDC, making it suitable for controlling high power devices.

4. Compatibility: The Pencom relay board is compatible with various microcontrollers, such as Arduino, Raspberry Pi, and others. It also comes with opto-isolated relays, ensuring safety and reliability.

5. Affordable: The Pencom relay board is an affordable option compared to other similar products in the market.

1. Limited Number of Channels: The Pencom S8-Rly-Int-L relay board only offers 8 channels, which may not be sufficient for larger projects requiring more relays.

2. Manual Switching: The board does not come with built-in manual switches for each relay, which may be a disadvantage for some users.

3. Lack of Protective Diodes: The Pencom relay board does not have protective diodes installed on the board, which may cause damage to the microcontroller or other components if not handled properly.

The Pencom Design S8-Rly-Int-L 8-channel relay board is an excellent option for those seeking an affordable, versatile, and easy-to-use relay board for their projects. Its high current capacity, compatibility with various microcontrollers, and compact size make it a popular choice among hobbyists and professionals. However, its limited number of channels and lack of protective diodes may be a disadvantage for larger projects requiring more relays or additional safety features.

If you're looking for an affordable and versatile 8-channel relay board for your projects, the Pencom Design S8-Rly-Int-L is an excellent choice. However, if you require more channels or additional safety features, you may want to consider other options in the market that offer more channels, manual switches, or protective diodes. Ultimately, the best choice depends on your specific project requirements and budget.

Details:

Configuration: enclosure: without, transformer: internal power transformer 120vac 50/60 Hz with terminal block connection, condition: used and in excellent condition.

specifications genpurrelays:

• brand: Pencom Design
• mpn: S8-rly-int-l
• part type: Board
• country of origin: United States
• item length: 12

seller genpurrelays:

• # reviews: 17057
• rating: 99.9%
• city: champaign, illinois

payments genpurrelays:

• wallet: paypal
• other
• credit card: mastercard

shipping genpurrelays:

• type: calculated
• transit: 3-7 days
• class: standard, one-day, economy
• carrier: fedex
• service: fedex ground / fedex home delivery, fedex standard overnight, fedex ground economy

offer genpurrelays:

• started: november 19, 2025
• sold #: 17
• in stock #: 2
• availability: in stock
• options: ship-to-home
• prices: $295.00–$395.00
• item condition: Used

general genpurrelays:

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

returns genpurrelays:

• policy: returns accepted
• method: money back
• time: 30 days
• paid by: buyer