Description
The HONEYWELL FC-SCNT01 is a high-integrity safety controller module crafted for critical industrial safety applications, often serving as the core processor within Honeywell’s Safety Instrumented Systems (SIS). It is designed to perform vital Safety Instrumented Functions (SIFs), maintaining secure operation in demanding environments such as oil and gas, chemical plants, power generation, and other industries where stringent safety compliance is required. The module’s dual-channel architecture provides redundancy and fault tolerance, enabling continuous safe performance by mitigating risks from single-point failures. It holds SIL 3 certification, the highest safety integrity level, reflecting its suitability for the most critical safety control tasks.
This controller manages eight inputs and eight outputs, allowing it to flexibly monitor diverse process parameters and interface with various field devices such as fire alarms, smoke detectors, and access control systems. Inputs received are processed to yield appropriate safety commands, while outputs can control actuators like door locks or alarm systems, ensuring prompt system responses during emergencies. Operating on a standard 24 V DC power supply with a typical current rating of 400 mA, the HONEYWELL FC-SCNT01 communicates reliably via standard industrial protocols and incorporates power isolation to safeguard the system against faults or power anomalies. Its built-in status indicators provide straightforward monitoring of operational and fault conditions.

- FC-SCNT01
Physically, the module is lightweight at approximately 0.2 kg and built to withstand tough industrial climates with an operating temperature range from -40 °C to +125 °C. It features SPDT (Single Pole Double Throw) contacts rated for 5A at 250 VAC, ensuring robust electrical performance and longevity with an electrical life expectancy of up to 1,000,000 cycles. The module’s mechanical design supports easy installation and maintenance within control cabinets governed by industrial safety standards.
| Parameter | Value |
|---|---|
| Model | FC-SCNT01 |
| Brand | Honeywell |
| Product Type | Safety Controller Module |
| Channels | 8 inputs, 8 outputs |
| Contact Configuration | SPDT (Single Pole Double Throw) |
| Contact Rating | 5A @ 250 VAC |
| Operating Force | Minimum 1.8 N |
| Release Force | Minimum 0.1 N |
| Pre-travel | Maximum 1.5 mm |
| Overtravel | Minimum 0.5 mm |
| Differential Travel | Maximum 0.25 mm |
| Operating Temperature | -40 °C to +125 °C |
| Electrical Life | 1,000,000 cycles |
| Rated Voltage | 24 V DC |
| Rated Current | 400 mA |
Related Honeywell components include:
FC-SCNT02—replacement or spare part for the FC-SCNT01 with enhanced features.
Honeywell Safety Manager SC—the modular system platform which integrates this controller module.
FC-SAI-1620M—analog input module complementing digital control systems.
FC-SDO-0824—digital output module designed to work with similar safety architectures.
FS-SCNT01—field variant with adaptations for specific industrial environments.
Installation and maintenance require adherence to standard industrial safety protocols, including ensuring appropriate cabinet space and ambient conditions to avoid overheating. The module should be mounted securely, with attention to grounding and wiring practices to preserve signal integrity. Routine diagnostics facilitated by status indicators and protocol communications allow for preemptive fault detection, supporting consistent safety system availability. Firmware should be updated per Honeywell guidelines to maintain system security and functionality.




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