HIMA F3330 Output Module Safety Related 8 Fold AK1-6

Product Overview

The F3330 (also designated as F 3330) is an 8-fold safety-related digital output module manufactured by HIMA for high-integrity safety systems up to Requirement Class AK 1...6. It provides eight short-circuit-proof outputs capable of driving resistive or inductive loads up to 500 mA (12 W) and lamp loads up to 4 W. Featuring integrated safety shutdown, safe electrical isolation, and undervoltage tripping at ≤ 16 V, the F3330 prevents output signals upon L- supply breakage. Occupying 4 TE width and weighing 0.45 kg, it delivers reliable field actuation in SIL-rated control panels.

Core Technical Advantages

• High Safety Integrity (AK 1...6): Designed for critical safety applications requiring safe isolation and integrated safety shutdown.
• Short-Circuit Proof Outputs: 8 output channels feature built-in short-circuit protection for loads up to 500 mA (12 W).
• Comprehensive Voltage Protection: Features automated undervoltage tripping at ≤ 16 V and output cutoff on L- supply failure.

Technical Specifications

Industrial Applications

• Emergency Shutdown (ESD) Systems: Actuates safety solenoids and trip valves in critical process plants.
• Burner Management Systems (BMS): Drives fuel safety shut-off valves requiring AK1-6 compliance.
• Hazardous Signal Annunciation: Controls pilot lamps and alarm relays with integrated short-circuit isolation.

Wiring & Installation

• Module Insertion: Mount the 4 TE module into the designated HIMA subrack slot until fully seated.
• Line Resistance Check: Verify that combined supply and return wire resistance does not exceed 11 Ohms.
• Field Load Wiring: Wire 24 V DC actuators or indicators to output terminals observing polarity.

Engineering Advantages

• Low Internal Losses: Maximum 2 V voltage drop at full 500 mA load minimizes thermal dissipation.
• Compact Enclosure: Requires only 4 TE of rack width to save cabinet backplane space.
• Fail-Safe Architecture: Guarantees output drop-out when L- supply is interrupted or voltage falls below 16 V.

Technical FAQs

Q1: What load ratings does each output channel of the HIMA F3330 support?
A1: Channels support 500 mA (12 W) resistive/inductive loads or up to 4 W lamp loads.

Q2: At what voltage level does undervoltage tripping occur on the F3330?
A2: The module trips and shuts down outputs when supply voltage drops to ≤ 16 V.

Q3: What is the maximum line resistance permitted for field wiring?
A3: Total admissible line resistance (in + out combined) is maximum 11 Ohms.