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- Honeywell
- FS-SDO-0448
- Safe Digital Output Module
- USA
- 150 mm × 80 mm × 35 mm
- 0.65kg
- Xiamen, China
- New & In Stock
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✅ Product Overview: Honeywell FS-SDO-0448
📌 Product Introduction
The Honeywell FS-SDO-0448 is a high-integrity, safe digital output module designed for safety-critical industrial automation environments. Part of Honeywell’s field-proven safety system architecture, this module provides four independent solid-state outputs with a nominal voltage of 48V DC. Engineered with diagnostics, short-circuit protection, and watchdog monitoring, it is tailored for Safety Instrumented Systems (SIS) where fault tolerance and fail-safe operation are vital.
Built to comply with international safety standards and rugged enough to operate in extreme temperatures, the FS-SDO-0448 is ideal for process control environments requiring maximum uptime and operational reliability.
🔧 Product Specifications
| Parameter | Specification |
|---|---|
| Model | FS-SDO-0448 |
| Output Channels | 4 (independent) |
| Output Type | Solid-State (Fail-Safe) |
| Nominal Output Voltage | 48 V DC |
| Max Current per Channel | 0.75 A |
| Voltage Drop (max) | < 2.1 V at 750 mA |
| Load Capacitance Limit | 1 µF per channel |
| Lamp Load (max) | 125 mA |
| Off-State Leakage Current | < 0.1 mA |
| Watchdog Input Current | ~5 mA |
| Supply Voltage | 48 V DC + 5 V logic |
| Mounting Format | 4 TE width × 3 HE height |
| Operating Temperature | -40°C to +85°C |
| Certifications | CE, UL, CSA, TÜV |
| Dimensions (L×W×H) | 150 mm × 80 mm × 35 mm |
| Weight | 0.65 kg |
🌍 Applications
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Safety Instrumented Systems (SIS) in critical process industries
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Driving safety actuators, alarms, or solenoids
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Hazardous area safety shutdown logic systems
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Chemical plants, refineries, and energy facilities
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Distributed safety control systems requiring SIL compliance
✅ Key Advantages
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Fail-Safe Design: Ensures outputs switch to a safe state upon fault detection or power failure.
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Integrated Diagnostics: Real-time fault monitoring for open-load, short-circuit, and output failure.
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High Load Handling: Each channel supports up to 0.75 A, capable of controlling moderate loads directly.
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Solid-State Reliability: No mechanical wear; supports millions of operations.
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Rugged & Compact: Built for extreme temperature environments, fits efficiently in standard safety racks.
🏷 Brand & Series
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Brand: Honeywell
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Series: FS (Field-Safe)
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Module Type: SDO – Safe Digital Output Series
📊 Related or Same Series Models
| Model | Output Voltage | Outputs | Max Current / Ch | Dimensions (mm) | Weight (kg) |
|---|---|---|---|---|---|
| FS-SDO-0448 | 48V DC | 4 | 0.75 A | 150×80×35 | 0.65 |
| FS-SDO-0424 | 24V DC | 4 | 2.0 A | 150×80×35 | 0.62 |
| FS-SDO-04110 | 110V DC | 4 | 0.325 A | 150×80×35 | 0.68 |
| FS-SDO-0824 | 24V DC | 8 | 0.5 A | 180×90×40 | 0.75 |
| FS-SDOL-0424 | 24V DC | 4 | 1.0 A | 150×80×35 | 0.66 |
📊 Other Popular Honeywell Modules
| Model | Function | Voltage | Channels | Dimensions (mm) | Weight (kg) |
|---|---|---|---|---|---|
| FS-PDC-MB24-2 | Power Distribution | 24 V DC | – | 130×80×38 | 0.50 |
| FS-RO-1024 | Relay Output | 24 V / 250 V AC | 10 | 120×90×45 | 0.55 |
| FS-PSU-UNI2450U | Power Supply Module | 24 V, 5 A | – | 120×80×50 | 0.60 |
| FS-SAI-0410 | Safe Analog Input | ±10 V / 4–20 mA | 4 | 150×80×35 | 0.58 |
| FS-SDO-0424 | Digital Output | 24 V DC | 4 | 150×80×35 | 0.62 |
❓ FAQ – Frequently Asked Questions
Q1: What type of outputs does FS-SDO-0448 offer?
A1: It uses solid-state outputs for higher reliability and fast switching with no mechanical parts.
Q2: What happens in case of a power failure?
A2: All output channels default to a predefined safe state as part of its fail-safe logic.
Q3: Is this module suitable for SIL-rated systems?
A3: Yes. It is designed for use in Safety Instrumented Systems, compliant with SIL architectures.
Q4: Can it handle inductive loads like solenoids?
A4: Yes, within specified current and voltage limits; proper snubber or flyback protection is recommended.
Q5: Is it hot-swappable?
A5: No. It must be installed or removed with the system powered down to maintain integrity.
Q6: Does it include self-diagnostics?
A6: Yes. It features continuous diagnostics on output health and wiring status.
Q7: Can I mix it with other voltage modules in one rack?
A7: Yes, provided the rack and controller support voltage isolation and separation.
Q8: What is the off-state current?
A8: Less than 0.1 mA, effectively ensuring no unintentional activation of field devices.
Q9: What is its lifespan or switching cycles?
A9: As a solid-state device, it offers extremely long life—typically over a million cycles.
Q10: Is it compatible with older Honeywell Safety Managers?
A10: Yes, it is backward-compatible with most systems in the FS or Safety Manager line.
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All product specifications are original and authentic imported products. We have an annual sales volume of 300 million yuan, and we only produce original and authentic products. All customers who cooperate with us directly online can enjoy low discounts.
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Fast delivery. Spot goods can be shipped on the same day, and the delivery time transaction is 20% faster than that of peers on average, with a delivery time accuracy rate of 99%.
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24-hour after-sales service guarantee team, professional and standardized management service system.