Brief Introduction to ICS TRIPLEX T8151B Safety Controller

Name: T8151B | ICS TRIPLEX | Safety Controller
SKU: 19669
Price: 1690.00 USD
Availability: InStock

For small and medium-sized industrial sites—like regional chemical workshops, food processing plants, and small-scale water treatment facilities—safety control needs to balance reliability, cost-effectiveness, and ease of use. The ICS TRIPLEX T8151B is a cost-efficient SIL 2 safety controller tailored for these scenarios, acting as a “stable safety guard” for daily production operations.

1. Product Overview

The ICS TRIPLEX T8151B is an industrial-grade safety controller certified for SIL 2 (Safety Integrity Level 2), positioned as a mid-range cost-effective model in the brand’s product line. It is specially designed for medium-risk, small-to-medium safety instrumented systems (SIS), and is widely used in industries such as regional petrochemicals, food sterilization, and municipal environmental protection. Compared with high-end models, it simplifies redundant structures while retaining core safety functions, perfectly matching the budget and technical needs of small and medium-sized enterprises.

Its core advantages lie in the “Dual-Modular Redundancy (DMR) + simplified logic” design. Two industrial-grade processors perform data mutual verification to avoid single-point faults, ensuring reliable execution of safety actions. It abandons complex AI and multi-protocol functions, focusing on stable monitoring of basic safety parameters (temperature, pressure, liquid level, etc.). For example, in a small chemical dosing system, if the T8151B detects that the chemical concentration exceeds the safe range, it will immediately stop the dosing pump and trigger a local alarm—responding within 20ms while keeping the operation simple.

The T8151B is designed for on-site practicality: its compact size can fit into narrow control cabinets, plug-and-play I/O modules reduce installation time to within 1 hour, and the Chinese-English bilingual operation interface allows on-site workers to master parameter setting in 10 minutes. It supports basic communication protocols such as Modbus, which can be easily connected with common sensors and actuators on the market, and is compatible with most existing control systems of small and medium-sized enterprises, avoiding the cost of overall system replacement.

2. Technical Specifications

The T8151B focuses on practicality and cost-effectiveness, with specifications fully adapted to small and medium-sized industrial scenarios:

Safety Integrity Level: SIL 2 (per IEC 61508/61511)—meets medium-risk process safety requirements
Architecture: Dual-Modular Redundancy (DMR)—dual-processor mutual verification, reliable and cost-effective
Processing Power: 2× 32-bit industrial processors—handles basic safety logic calculations stably
I/O Capacity: Up to 128 digital I/O points, 32 analog I/O points—fits small sensor networks
Communication Protocols: Modbus RTU/TCP, RS485—compatible with common industrial devices
Operating Voltage: 24 V DC (18–36 V DC)—adapts to on-site power supply fluctuations
Operating Temperature: -10°C to +65°C—adapts to general factory environmental conditions
Dimensions: 220 mm × 150 mm × 190 mm (panel-mounted)—compact for narrow control cabinets
Response Time: ≤ 20 ms—timely for medium-risk safety events
Protection Level: IP65 (front panel)—resists dust and water splashes in workshop environments

3. System Integration & Application

The T8151B is the core component of ICS TRIPLEX’s “Economical Safety System for SMEs”, which includes the T8151B controller, basic I/O modules, and simplified configuration software. This system is designed to be “plug-and-play”—it can be quickly integrated into the existing production line without requiring professional programming teams, greatly reducing the application threshold for small and medium-sized enterprises.

Take the safety control system of a small food sterilization workshop as an example to understand its working process:

Temperature sensors in the sterilization pot and liquid level sensors in the steam tank send real-time data to the T8151B’s I/O modules through RS485 communication.
The two processors of the T8151B perform mutual verification and data analysis. If the sterilization temperature is lower than 121°C (failure to meet food safety standards) or the steam level is too low (risk of dry burning), the controller immediately confirms the abnormal state.
The controller issues synchronous commands: pause the conveyor belt to prevent unqualified products from flowing out, increase the steam supply to raise the temperature, and light up the red alarm light in the workshop while sounding a buzzer.
After the on-site staff checks and adjusts, the temperature and liquid level return to normal. Pressing the “Reset” button on the controller’s panel will restart the sterilization process, and the system automatically records the abnormal event for subsequent traceability.

This system is deeply favored by small and medium-sized enterprises because of its low cost, simple operation, and stable performance. The T8151B also supports basic expansion—adding an 8-channel I/O module can meet the safety needs of expanded production lines, and the upgrade cost is only 15% of replacing the whole machine, which is highly cost-effective.

4. Recommended ICS TRIPLEX Related Models

ICS TRIPLEX has a complete product matrix covering different risk levels and enterprise scales. Here are the most practical related models for various scenarios, helping small and medium-sized enterprises choose the right safety controller:

ICS TRIPLEX T8151A: Economic version of T8151B—SIL 2 entry-level, suitable for ultra-small medium-risk systems (e.g., small pharmaceutical workshops)
ICS TRIPLEX T8151B-EX: Explosion-proof variant (ATEX/IECEx Zone 2 certified)—for small hazardous areas (e.g., paint mixing rooms)
ICS TRIPLEX T8160: SIL 2 enhanced model—supports more I/O points, for growing enterprises (e.g., expanding beverage factories)
ICS TRIPLEX T8110B: SIL 1 entry-level model—cost-effective for low-risk systems (e.g., municipal water supply stations)
ICS TRIPLEX T8311: SIL 3 compact model—for small high-risk systems (e.g., small chemical reactor control)
ICS TRIPLEX T8151B-W: Waterproof variant (IP67)—suitable for wet environments (e.g., seafood processing plants)
ICS TRIPLEX T9181: SIL 3 mid-range model—for medium-sized high-risk systems (e.g., onshore small oil refineries)
ICS TRIPLEX T8151B-KIT: Starter kit—includes T8151B controller, 16-channel I/O module, configuration software, and wiring tools
ICS TRIPLEX T8151B-C: Corrosion-resistant variant—for coastal workshops (e.g., salted fish processing plants)
ICS TRIPLEX T9300: SIL 3 flagship model—for large-scale intelligent systems (e.g., integrated energy hubs, suitable for enterprise expansion needs) View more.