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1sna631181r1600 – bri-1621 n/p
TE Connectivity BRI-1621 N/P 1SNA631181R1600 is a 16-channel 24 V DC ENTRELEC Interfast MS relay decoupling interface with 1 SPDT 6 A contacts, a 20-pole Omniconnect interface and screw-clamp field connections for industrial automation systems.
Why Choose the TE Connectivity BRI-1621 N/P 1SNA631181R1600 Relay Interface?
The TE Connectivity BRI-1621 N/P 1SNA631181R1600 is a high-density 16-relay decoupling interface module from the ENTRELEC Interfast MS range, designed to provide reliable electrical isolation and signal switching between PLC outputs and field devices. Its integrated relay architecture simplifies control-panel wiring while providing a structured interface for industrial automation systems.
The BRI-1621 N/P incorporates 16 relay channels with 1 SPDT contact per relay and a contact switching capacity of up to 6 A. A 20-pole Omniconnect pluggable interface is used on the controller side, while screw-clamp terminals provide secure field wiring, helping reduce individual point-to-point connections and streamline installation.
Designed for 24 V DC control circuits, the module is suitable for PLC output isolation, actuator switching and other automation functions where relay separation is required. Its DIN-rail housing measures approximately 85 × 112 × 106 mm and supports mounting on standard TH35-7.5 and TH35-15 DIN rails.
Key Advantages
- Integrated 16-channel relay interface for PLC and automation applications.
- 1 SPDT relay contact per channel provides flexible changeover switching.
- Relay output contacts rated up to 6 A.
- 20-pole Omniconnect interface reduces conventional point-to-point controller wiring.
- Combination of pluggable and screw-clamp connections simplifies installation and maintenance.
- DIN-rail construction provides compact integration into industrial control cabinets.
Key Features
- TE Connectivity ENTRELEC Interfast MS decoupling interface.
- BRI-1621 N/P model designation.
- 16 relay channels.
- 1 SPDT contact per relay.
- 6 A relay output contact rating.
- 24 V DC control voltage.
- 20-pole Omniconnect pluggable controller interface.
- Pluggable / screw-clamp connection technology.
- 10 mm wire stripping length.
- UL94 V-0 flammability classification.
- Suitable for TH35-7.5 and TH35-15 DIN rails.
Reliable Relay Isolation for PLC and Automation Systems
Relay interface modules provide electrical separation between low-power control electronics and field-side loads, allowing PLC outputs to operate equipment without directly carrying the switched load current. This helps protect control electronics while providing clearly defined switching points for maintenance and diagnostics.
The ENTRELEC Interfast MS system combines multi-pole controller connectors with individual field terminals to reduce wiring density inside control cabinets. The BRI-1621 N/P integrates 16 relay channels into a single DIN-rail module, providing an efficient solution for installations requiring multiple isolated switching outputs.
Typical Applications
- PLC output isolation and relay interfacing.
- Industrial automation control panels.
- Actuator, solenoid and contactor control circuits.
- Machine-building electrical systems.
- Process-control installations.
- OEM automation and control cabinets.
Technical Specifications
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| Connection | Pluggable | |
|---|---|---|
| Product Series | TE Interfast | |
| Manufacturer | TE Connectivity | |
| Brand family | ENTRELEC | |
| Series | Interfast MS | |
| Model | BRI-1621 N/P | |
| Part number | 1SNA631181R1600 | |
| Product type | Relay decoupling interface module | |
| Number of relay channels | 16 | |
| Contact configuration | 1 SPDT per relay | |
| Relay output rating | 6 A | |
| Control voltage | 24 V DC | |
| Controller interface | 20-pole Omniconnect | |
| Connection type | Pluggable / screw clamp | |
| Wire stripping length | 10 mm | |
| Recommended screwdriver | 3.5 mm | |
| UL/CSA conductor capacity | Stranded 12 AWG | |
| Flammability rating | UL94 V-0 | |
| Pollution degree | 2 | |
| DIN rail mounting | TH35-7.5 / TH35-15 | |
| Dimensions (H × W × D) | 85 × 112 × 106 mm | |
| Net weight | approx. 729 g | |
| Pack quantity | 1 | |
| EAN | 3472596311810 |
Frequently Asked Questions
What is the TE Connectivity BRI-1621 N/P 1SNA631181R1600 used for?
It is a 16-channel relay decoupling interface used to isolate and switch signals between PLC outputs and field devices in industrial automation systems.
How many relays are included in the BRI-1621 N/P?
The interface incorporates 16 relay channels, each providing a single SPDT changeover contact.
What is the relay contact rating?
The relay output contacts are rated for switching currents of up to 6 A.
What control voltage does the 1SNA631181R1600 use?
The BRI-1621 N/P is designed for 24 V DC control circuits.
How is the BRI-1621 N/P mounted?
The module is designed for mounting on standard TH35-7.5 and TH35-15 35 mm DIN rails inside industrial control panels.
Trusted Interface Connectivity for Industrial Automation
TE Connectivity ENTRELEC Interfast relay interfaces provide compact, structured and serviceable isolation between automation controllers and field equipment, helping simplify high-density industrial control-panel wiring.
