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1sna020833r1600 – interface ri1621n/p-f-24vdc
TE Connectivity 1SNA020833R1600 RI-1621N/P-F-24VDC is a 16-channel 24 V DC Interfast relay output interface with 1 SPDT contacts and fused common contacts for PLC and industrial automation applications.
Why Choose the TE Connectivity 1SNA020833R1600 RI-1621N/P-F-24VDC Interface?
The TE Connectivity 1SNA020833R1600, also designated RI-1621N/P-F-24VDC, is a 16-channel relay output interface from the Interfast range, designed to simplify connections between programmable logic controllers (PLCs) and field devices in industrial automation systems. It provides galvanic isolation and relay-based switching in a compact interface module suitable for control panels and automated machinery.
The RI-1621N/P-F-24VDC incorporates 16 relays with 1 changeover (1 SPDT) contact per channel and operates with a 24 V DC nominal control voltage. The interface is designed for NPN/PNP control configurations and provides a practical method of converting PLC output signals into isolated relay contacts for controlling industrial loads.
This F version includes fuses on the common contacts, providing additional circuit protection within the interface assembly. With compatibility for Omniconnect 20-pole and HE10/20 connections, the module helps reduce point-to-point wiring and supports organised, efficient installation within industrial control cabinets.
Key Advantages
- 16-channel relay output interface for PLC and industrial automation applications.
- 24 V DC nominal control voltage suitable for common industrial control systems.
- 1 SPDT relay contact per channel provides flexible changeover switching.
- 5 A output interface for switching compatible field circuits.
- Integrated fuses on the common contacts provide additional circuit protection.
- Supports NPN/PNP control configurations for flexible PLC integration.
- Omniconnect and HE10 connectivity helps reduce conventional point-to-point panel wiring.
- Interfast architecture supports compact and organised control cabinet installations.
Key Features
- TE Connectivity / Entrelec Interfast interface system.
- 16 relay output channels.
- 24 V DC nominal voltage.
- 1 SPDT (changeover) contact per relay.
- 5 A output interface.
- Fused common contacts for enhanced circuit protection.
- Designed for NPN/PNP PLC signals.
- Compatible with Omniconnect 20-pole and HE10/20 connections.
- Provides galvanic isolation between control electronics and switched field circuits.
- Compact interface format for industrial electrical panels.
Reliable PLC-to-Field Interface for Industrial Automation
Relay interface modules provide an effective electrical separation point between sensitive PLC electronics and field-level loads. The TE Connectivity RI-1621N/P-F-24VDC uses individual relay channels to translate control signals into isolated changeover contacts, allowing connected equipment to be switched without directly placing the field circuit onto the PLC output.
The Interfast system is designed to simplify control cabinet wiring by combining multiple channels into a compact interface assembly and supporting multipole connections. For machine builders, system integrators and panel builders, this can reduce wiring complexity, improve circuit organisation and make installation and maintenance more efficient.
Typical Applications
- PLC output interfacing in industrial control panels.
- Factory automation and production machinery.
- Relay isolation between controllers and field equipment.
- Machine building and OEM automation systems.
- Process control and instrumentation panels.
- Material handling and conveyor control systems.
- Industrial switching and signal interfacing.
- Control cabinets requiring multi-channel relay outputs.
Technical Specifications
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| Number of Connection Points | 20 | |
|---|---|---|
| Product Series | TE Interfast | |
| Manufacturer | TE Connectivity / Entrelec | |
| Series | Interfast | |
| Model | RI-1621N/P-F-24VDC | |
| Manufacturer part number | 1SNA020833R1600 | |
| Product type | Relay output / decoupling interface | |
| Number of channels | 16 | |
| Nominal control voltage | 24 V DC | |
| Relay contact configuration | 1 SPDT / changeover contact per channel | |
| Output interface rating | 5 A | |
| Control compatibility | NPN / PNP | |
| Interface connections | Omniconnect 20-pole and HE10/20 | |
| Product length | 104 mm | |
| Product height | 70.5 mm | |
| EAN | 3472590208338 |
Frequently Asked Questions
What is the TE Connectivity 1SNA020833R1600 used for?
The 1SNA020833R1600 RI-1621N/P-F-24VDC is a 16-channel relay output interface designed to provide switching and electrical isolation between PLC control signals and field circuits in industrial automation systems.
What control voltage does the RI-1621N/P-F-24VDC use?
The interface has a nominal control voltage of 24 V DC, making it suitable for widely used industrial PLC and automation control circuits.
How many relay channels does the 1SNA020833R1600 provide?
The interface provides 16 relay output channels, allowing multiple PLC outputs and field circuits to be interfaced through a single compact module.
What relay contacts are provided?
Each channel provides a 1 SPDT changeover relay contact, offering normally open and normally closed switching functionality for compatible field circuits.
Does the RI-1621N/P-F-24VDC include fuses?
Yes. The F version is designed with fuses on the common contacts, providing additional protection for the connected output circuits.
What connections does the interface support?
The RI-1621N/P-F-24VDC is designed for use with Omniconnect 20-pole and HE10/20 connections, helping simplify multi-channel wiring between PLC equipment and the interface.
Trusted for Industrial Control and Automation
TE Connectivity and Entrelec interface products are designed for dependable electrical connectivity in industrial automation, helping panel builders, machine manufacturers and control engineers create organised and reliable PLC-to-field wiring systems.
