I. Basic Information

Model: F3246A (Material Number: 984324602)

Brand/Series: HIMA (Black Horse) / HIMatrix F3 Series

Function: 2-channel safety switch amplification, SIL3 (IEC 61508), AK6, Cat.4/PL e

Status: In production, original and genuine product

II. Core Parameters

Channels: 2 independent switch outputs (dry contacts / active drive)

Rated Voltage: 24VDC (powered by backplane)

Output Capacity: Maximum 2A / 30VDC per channel, supports intrinsically safe Ex ia drive

Safety Certification: SIL3, TÜV AK6, Cat.4/PL e

Diagnosis: Load short circuit / open circuit detection, channel-level fault alarm

Isolation: 2kVrms isolation between input and output

Environment: -20℃ to +60℃, IP20; supports hot swapping

Size / Weight: Approximately 25mm×203mm×127mm / 0.6kg

III. Functions and Applications

Core Function: Amplify the weak signals from the system side to strong signals that can drive solenoid valves, relays, and sound and light alarm lights, suitable for intrinsically safe equipment in explosion-proof areas.

Typical Scenarios:

Chemical / Petrochemical: Emergency shut-off valve (ESD valve) drive

Oil and Gas: Platform safety valve, cut-off valve control

Power: Boiler / Steam turbine safety interlock execution

IV. Comparison with Similar Models

F3246A: 2 channels, switch amplification, SIL3, intrinsically safe drive, explosion-proof scenarios

F3240: 16 channels, 120V AC/DC input, high-voltage DI module

F3237/F3238: 8 channels, 24V DC NAMUR / intrinsically safe input, DI module

V. Selection Suggestions

To drive 2 explosion-proof solenoid valves / actuators: Select F3246A

For 120V high-voltage switch input: Select F3240

For 24V NAMUR conventional input: Select F3237 (8 channels) or F3226A (16 channels)