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1sna020831r1400 – ri1621n/p 24vdc 16 channel relay board
TE Connectivity RI-1621N/P-24VDC 1SNA020831R1400 is a 24 V DC 16-channel Interfast PCB relay interface board designed for electrical decoupling between PLC control signals and field circuits in industrial automation systems.
Why Choose the TE Connectivity RI-1621N/P-24VDC 16 Channel Relay Board?
The TE Connectivity RI-1621N/P-24VDC, manufacturer part number 1SNA020831R1400, is an industrial 16-channel relay interface board designed to provide reliable electrical decoupling between PLC or automation control signals and field devices. Part of the established Entrelec Interfast PCB interface range, it combines multiple relay channels within a single compact assembly to simplify control panel wiring and improve system organisation.
The RI-1621N/P-24VDC uses a 24 V DC control supply and provides 16 relay channels for interfacing multiple control signals. Each channel provides relay-based electrical isolation, allowing low-level controller outputs to switch separate field circuits while helping protect sensitive PLC and automation electronics from the connected load side.
Designed as a decoupling Interfast PCB, the RI-1621N/P-24VDC supports efficient connection between automation controllers and field wiring. Its interface arrangement is associated with 20-pole Omniconnect and HE10/20 connectivity, while the board has a compact 75 mm width and 70.5 mm height, making it well suited to high-density industrial control cabinets.
Key Advantages
- Integrated 16-channel relay interface board for industrial automation.
- 24 V DC control voltage compatible with common PLC and control systems.
- Provides relay-based electrical decoupling between control and field circuits.
- Consolidates 16 relay interfaces into one organised industrial PCB assembly.
- Supports 20-pole Omniconnect and HE10/20 interface connectivity.
- Reduces point-to-point wiring and simplifies installation, commissioning and maintenance.
Key Features
- TE Connectivity / Entrelec RI-1621N/P-24VDC relay interface.
- 16 relay channels for multi-signal automation applications.
- 24 V DC relay control voltage.
- Decoupling Interfast PCB construction.
- Relay output interface for PLC and automation systems.
- 20-pole Omniconnect and HE10/20 connectivity.
- 75 mm width and 70.5 mm height.
- Designed for industrial electrical cabinets and machine control systems.
Reliable Relay Decoupling for Industrial Automation
Relay interface boards provide an effective method of separating PLC and controller electronics from field-side electrical circuits. The relay channels allow control signals to operate external loads through electrically isolated contacts, helping provide dependable switching while simplifying the interface between automation equipment and connected machinery.
The RI-1621N/P-24VDC integrates 16 relay channels into a dedicated Interfast PCB assembly, reducing the number of individually mounted relays and associated point-to-point connections required within a panel. This makes it particularly useful for machine builders and automation engineers who need a compact, repeatable interface between PLC outputs and multiple field circuits.
Typical Applications
- PLC output interfacing and signal decoupling.
- Industrial control panels and electrical cabinets.
- Machine control and factory automation systems.
- Process control and production equipment.
- Multi-channel relay switching applications.
- OEM machinery and automated manufacturing systems.
Technical Specifications
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| Product Series | TE Interfast | |
|---|---|---|
| Manufacturer | TE Connectivity / Entrelec | |
| Series | Interfast PCB | |
| Model | RI-1621N/P-24VDC | |
| Manufacturer part number | 1SNA020831R1400 | |
| Product type | Decoupling relay interface PCB / relay board | |
| Number of channels | 16 | |
| Control voltage | 24 V DC | |
| Relay contact configuration | 1 SPDT per channel | |
| Interface connectivity | 20-pole Omniconnect and HE10/20 | |
| Width | 75 mm | |
| Height | 70.5 mm | |
| Application | PLC and industrial automation interfacing | |
| Pack quantity | 1 | |
| EAN / barcode | 3472590208314 |
Frequently Asked Questions
What is the TE Connectivity RI-1621N/P-24VDC used for?
The RI-1621N/P-24VDC is a 16-channel relay interface board used to electrically decouple and interface PLC or automation control signals with field-side electrical circuits.
How many relay channels does the RI-1621N/P-24VDC have?
The RI-1621N/P-24VDC provides 16 relay channels, allowing multiple automation signals to be switched through a single organised interface board.
What control voltage does the RI-1621N/P use?
This version of the RI-1621N/P operates with a 24 V DC control voltage, making it suitable for common industrial PLC and automation systems.
What connections are supported by the RI-1621N/P-24VDC?
The RI-1621N/P-24VDC is designed as an Interfast PCB relay interface and supports 20-pole Omniconnect and HE10/20 connectivity for efficient integration with industrial control systems.
Where is the RI-1621N/P-24VDC typically installed?
The relay board is typically installed inside industrial electrical cabinets, machinery control panels and PLC automation systems where multiple controller signals need to be isolated and interfaced with field circuits.
Trusted Industrial Relay Interface Technology
TE Connectivity Entrelec Interfast PCB relay interfaces provide compact multi-channel signal decoupling for industrial automation, helping panel builders reduce wiring complexity while maintaining organised and dependable connections between controllers and field equipment.
