
ICS Triplex T8891 Speed Output Field Terminal Assy SOFTA
Product Summary
The ICS Triplex T8891 Speed Output Field Terminal Assembly provides a robust interface for speed output signals within a Trusted TMR system. This assembly ensures reliable signal conversion and field device connectivity for critical industrial applications demanding high availability.

Core Technical Specifications & Parameters
The T8891 Speed Output Field Terminal Assembly (SOFTA) is engineered to operate within the Trusted TMR architecture. It receives its operational power supply from the T8442 module, eliminating the need for a separate power input. The output ratings are specified as 3A at 120Vac and 2A at 30Vdc, providing versatile switching capabilities for various field devices. The assembly utilizes a screw clamp terminal block type, identified by the RA part number 3AX185. This terminal block requires a specific torque of 0.5 N.m and accepts wire sizes ranging from 30 to 12 AWG (0.05 to 2.5 mm²). Only one cable termination is permitted per terminal block position to ensure secure and reliable connections. The unit is designed for straightforward integration into standard industrial control panels.

Professional Installation & Wiring Guidelines
Begin the installation by mounting the T8891 assembly onto a standard DIN rail within the control cabinet. Ensure the Trusted TMR system is completely de-energized before commencing any wiring activities. Connect the field device output wires to the designated screw clamp terminals, adhering strictly to the specified torque of 0.5 N.m. Use only one wire per terminal position to maintain connection integrity. The power supply for the T8891 is derived from the adjacent T8442 module via a dedicated backplane connection, so no external power wiring is required. Verify all connections are secure and that the wiring complies with local electrical codes and safety standards. Finally, integrate the assembly into the overall Trusted system configuration for operational testing.
Standard Packaging List & Logistics
- One ICS Triplex T8891 Speed Output Field Terminal Assembly
- One screw clamp terminal block (RA part 3AX185)
- Product documentation and installation guide
Express delivery shipping is available via FedEx, UPS, and DHL to ensure rapid deployment for critical projects.
Frequently Asked Questions (FAQ)
Q: What is the primary function of the ICS Triplex T8891 assembly?
A: The T8891 acts as the main interface between a Trusted TMR speed output module and field devices requiring speed control signals.
Q: Does the T8891 require a separate external power supply for its operation?
A: No, the T8891 receives its operational power directly from the T8442 module within the Trusted system backplane.
Q: What are the maximum output ratings for the T8891 Speed Output FTA?
A: The assembly is rated for a maximum of 3 Amps at 120 Volts AC or 2 Amps at 30 Volts DC.
Q: What type of terminal block is used on the T8891 and what is its torque specification?
A: It uses a screw clamp terminal block (3AX185) which requires a tightening torque of exactly 0.5 N.m.
Q: How many wires can be terminated on a single terminal position of the T8891?
A: Only one cable termination is allowed per terminal block position to ensure a secure and reliable electrical connection.

