TE Connectivity BRI-1621 N 16-channel plug relay interface with SPDT relay outputs rated up to 6 A for Interfast MS industrial automation and control systems.
Why Choose the TE Connectivity BRI-1621 N 16 Plug Relay?
The TE Connectivity BRI-1621 N is a compact and reliable 16-channel relay interface module designed for electrical isolation and switching between industrial automation systems and connected field circuits. Part of the ENTRELEC Interfast MS range, it provides a practical interface solution for PLC systems, control panels and industrial automation equipment.
The BRI-1621 N incorporates 16 relay channels with SPDT changeover contacts and a 6 A output rating, providing flexible switching for multi-channel control applications. Its pluggable screw-clamp connection system supports efficient installation and servicing, while the compact modular construction is designed for integration within industrial control cabinets.
Designed as a decoupling interface for Interfast MS systems, the BRI-1621 N provides galvanic separation between the control interface and relay outputs. Its 16-channel configuration makes it particularly suitable where multiple relay-controlled circuits need to be accommodated within a single interface assembly.
Key Advantages
Compact 16-channel relay interface for industrial automation systems.
16 SPDT relay channels provide flexible changeover switching.
6 A output rating suitable for a wide range of control applications.
Provides galvanic isolation between interface and connected circuits.
Pluggable screw-clamp connections simplify installation and maintenance.
Designed specifically for Interfast MS systems.
Key Features
TE Connectivity ENTRELEC BRI-1621 N relay interface.
16 relay channels.
1 SPDT contact per channel.
6 A output current rating.
24 V DC relay interface.
Decoupling interface for Interfast MS.
Compatible with OmniConnect 20-pole interface systems.
Pluggable screw-clamp connection system.
DIN rail compatible modular construction.
Reliable Multi-Channel Relay Interfacing for Industrial Automation
The TE Connectivity BRI-1621 N provides a convenient interface between automation equipment and multiple external circuits. Each relay channel provides an SPDT changeover contact, allowing control systems to switch or change over connected circuits while maintaining electrical separation between the interface and output side.
The 16-channel design helps consolidate multiple relay functions into a single modular interface, reducing wiring complexity and supporting efficient control-panel construction. Pluggable screw-clamp connections also allow the interface to be installed and serviced efficiently within industrial automation cabinets.
Typical Applications
PLC and industrial automation interfaces.
Multi-channel relay switching systems.
Industrial control panels and electrical cabinets.
Machine control and OEM automation equipment.
Signal isolation and relay interface applications.
Interfast MS and OmniConnect control systems.
Technical Specifications
Manufacturer
TE Connectivity
Series
ENTRELEC Interfast MS
Model
BRI-1621 N
Part number
1SNA631125R1500
Product type
Relay / decoupling interface
Number of channels
16
Relay configuration
1 SPDT per channel
Output current
6 A
Control voltage
24 V DC
Connection type
Pluggable screw clamp
Interface
OmniConnect 20-pole
Mounting type
DIN rail
Pollution degree
2
Wire stripping length
10 mm
Recommended screwdriver
3.5 mm
Product height
85 mm
Product width
112 mm
Product depth
106 mm
Pack quantity
1
Frequently Asked Questions
What is the TE Connectivity BRI-1621 N used for?
The BRI-1621 N is a 16-channel relay and decoupling interface used to provide isolated relay switching between industrial automation systems and connected field circuits.
How many relay channels does the BRI-1621 N provide?
The BRI-1621 N provides 16 relay channels, with one SPDT changeover contact arrangement per channel.
What is the output rating of the BRI-1621 N?
Each relay interface is rated for an output current of up to 6 A for suitable industrial switching applications.
What control voltage does the BRI-1621 N use?
The BRI-1621 N is identified as a 24 V DC relay interface for industrial automation and control applications.
How is the BRI-1621 N connected?
The interface uses pluggable screw-clamp connections and is designed for integration with Interfast MS and OmniConnect 20-pole systems.
Trusted by Industrial Electrical Engineers Worldwide
TE Connectivity ENTRELEC Interfast MS relay interfaces are used by automation engineers and control-panel builders to provide reliable multi-channel switching, electrical isolation and efficient integration between control systems and field circuits.
Manufacturer
TE Connectivity
Series
ENTRELEC Interfast MS
Model
BRI-1621 N
Part number
1SNA631125R1500
Product type
Relay / decoupling interface
Number of channels
16
Relay configuration
1 SPDT per channel
Output current
6 A
Control voltage
24 V DC
Connection type
Pluggable screw clamp
Interface
OmniConnect 20-pole
Mounting type
DIN rail
Pollution degree
2
Wire stripping length
10 mm
Recommended screwdriver
3.5 mm
Product height
85 mm
Product width
112 mm
Product depth
106 mm
Pack quantity
1
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LED Controls is a specialist distributor of factory automation and industrial controls, supplying OEMs, machine builders, panel builders and end users throughout the UK and worldwide. As a trusted UK distributor for many of the world’s leading automation manufacturers, we provide industrial control products, technical expertise and bespoke automation solutions backed by outstanding customer service.
2025 has been a big year for LED Controls, and our blog has expanded accordingly. We've covered a wide range of topics across industrial control and factory automation this year. From core technology explainers and new product releases to panel building best practice...
2025 has been a big year for LED Controls, and our blog has expanded accordingly. We've covered a wide range of topics across industrial control and factory automation this year. From core technology explainers and new product releases to panel building best practice...