FC-TSDI-1624 | HONEYWELL Safe Digital input FTA

The FC-TSDI-1624 is a Safe Digital Input Field Termination Assembly (FTA) designed for use in hazardous locations and industrial environments. It acts as an interface between the system interconnection cable (SICC-0001/Lx) and the external field wiring, ensuring safe and reliable digital input signal handling.

Key Features:

Interface between SICC cable and external field wiring with screw terminals.
Capable of handling digital input signals from Class I, Division 2 Hazardous Locations.
Includes PTC resistor protection to prevent loss of all 16 channels in case of a short circuit.
DIN rail snap-in for easy mounting and field wiring connection.
Redundant pair of SDI-1624 modules for load balancing and reliability.

Technical Specifications:

General:

Type Numbers: FS-TSDI-1624, FC-TSDI-1624
Approvals: CE, TÜV, UL, CSA, FM
Operating Environment: Class 1, Division 2 Hazardous Locations

Input:

Number of Input Channels: 16
Input Voltage: 24 Vdc, ±15% to +30%
Input Current: ≤15mA at 24 Vdc (with redundant SDI-1624 modules)
PTC Resistance: 260 Ω ±25% at 25°C
PTC (steady) Current: Typ. 45 mA ±35% at 24 Vdc

Physical:

Module Dimensions: 90 x 70 x 58 mm (L x W x H)
DIN Rail Type: TS32 / TS35 x 7.5
Used Rail Length: 91 mm

Termination:

Screw Terminals
Max. Wire Diameter: 2.5 mm² (AWG 14)
Strip Length: 7 mm
Tightening Torque: 0.5 Nm

Field Signal Specifications for Non-Incentive Field Circuits (Class 1 Division 2):

Max. Closed Loop Resistance: 10 Ω
Min. Open Loop Resistance: 15 kΩ

Hydrogen Specifications (Group A & B):

Max. Supply Voltage: 28.8 Vdc
Max. Loop Inductance: 3 mH
Max. Loop Capacitance: 0.3 µF

Hydrogen Specifications (Group C & D):

Max. Loop Inductance: 10 mH
Max. Loop Capacitance: 6 µF

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