ABB SAFT 110 POW Safety Power Supply Module | Intrinsically Safe PSU for Hazardous Areas

ABB SAFT 110 POW Safety Power Supply Module (Intrinsically Safe Solution for Hazardous Environments)

The ABB SAFT 110 POW is an industrial-grade power supply module engineered specifically for SAFT 110 safety application field transmitters operating in hazardous and potentially explosive atmospheres. Through intrinsically safe (Ex i) circuit design and galvanic isolation technology, it delivers reliable, continuous power to field devices while maintaining compliance with ATEX, IECEx, and FM standards for Zone 0/1/2 and Division 1/2 classified locations.

Designed for critical safety instrumentation in oil & gas, chemical processing, pharmaceutical manufacturing, and mining operations, this module addresses key challenges including power supply reliability in explosive environments, protection against electrical faults, compliance with international safety certifications, and seamless integration with distributed control systems (DCS) and safety PLCs.

With standardized DIN rail mounting and modular architecture, the SAFT 110 POW offers rapid installation, hot-swappable maintenance capability, and proven long-term stability in demanding industrial conditions. Suitable for instrumentation engineers, EPC contractors, safety system integrators, and plant maintenance teams. Contact our application engineers for hazardous area classification review and system configuration assistance.

Core Features & Technical Advantages

• Intrinsically Safe Design (Ex ia IIC T4 Ga/Gb)
  Certified energy-limiting circuitry prevents ignition sources in explosive gas atmospheres, enabling safe operation in Zone 0, Zone 1, and Zone 2 classified areas per ATEX Directive 2014/34/EU and IECEx standards.
• Galvanic Isolation & Surge Protection
  Integrated isolation barriers (≥1500V AC) protect downstream field devices from ground loops, electromagnetic interference (EMI), and transient voltage spikes, reducing false trips and extending sensor lifespan.
• Wide Input Voltage Range & Redundancy Support
  Accepts 20-30V DC nominal input with tolerance for ±20% fluctuations, compatible with redundant 24V DC power architectures commonly deployed in SIL-rated safety systems.
• Diagnostic LED Indicators & Fault Reporting
  Real-time status indication for power OK, overload, short circuit, and output fault conditions; supports integration with SCADA/DCS alarm systems via digital status contacts.
• Compact Modular Construction
  Standard 35mm DIN rail mounting with 22.5mm width footprint, enabling high-density installation in marshalling cabinets and junction boxes with IP20 terminal protection.
• Extended Operating Temperature Range
  Rated for -40°C to +70°C ambient operation with conformal coating protection against humidity, dust, and corrosive atmospheres typical in offshore platforms and chemical plants.

Typical Application Scenarios

The SAFT 110 POW power supply module is engineered for safety-critical instrumentation systems requiring certified intrinsic safety barriers, particularly in:

• Oil & Gas Upstream/Downstream Facilities
  Powers safety transmitters (pressure, temperature, level, flow) in wellhead control panels, separator skids, compressor stations, and refinery process units classified as Zone 1/Division 1 hazardous areas.
• Chemical & Petrochemical Processing Plants
  Supports emergency shutdown (ESD) systems, fire & gas detection networks, and reactor monitoring instrumentation in environments with flammable vapor concentrations requiring IEC 61508 SIL compliance.
• Pharmaceutical & Fine Chemical Manufacturing
  Enables safe operation of analytical transmitters and sampling systems in solvent handling areas, spray dryers, and cleanroom buffer zones with explosive dust/vapor classifications.
• Mining & Mineral Processing Operations
  Provides certified power for underground coal mine monitoring systems, methane detection networks, and conveyor safety interlocks in MSHA-regulated environments.
• Offshore Platforms & Marine Installations
  Delivers reliable field device power in FPSO topsides, subsea control modules, and LNG carrier cargo monitoring systems exposed to salt spray, vibration, and extreme temperature cycling.

Technical Specifications & Selection Guide

To ensure optimal system performance and regulatory compliance, the SAFT 110 POW is available with the following standard specifications. Custom configurations are available for project-specific requirements.

Selection Considerations: When specifying the SAFT 110 POW, please confirm: (1) Hazardous area classification (Zone/Division, Gas Group, Temperature Class), (2) Field device power requirements (voltage, current), (3) DCS/PLC system voltage (for input compatibility), (4) Environmental conditions (temperature extremes, humidity, vibration), (5) Required certifications (ATEX, IECEx, FM, CSA). Our application engineers can review P&ID drawings and provide certified installation drawings upon request.

System Integration & Compatibility

• Native Compatibility with ABB Safety Ecosystem: Designed for seamless integration with ABB SAFT 110 series field transmitters, AC 800M safety controllers, and System 800xA DCS platforms.
• Multi-Vendor Interoperability: Supports standard 4-20mA analog signals and HART digital communication protocol, enabling integration with Honeywell, Siemens, Emerson, Yokogawa, and Schneider Electric control systems.
• Redundancy Architecture Support: Compatible with 1oo2 (one-out-of-two) and 2oo3 (two-out-of-three) voting configurations in SIL 2/SIL 3 safety instrumented systems per IEC 61511.
• Remote Monitoring Capability: Diagnostic status outputs can be wired to PLC digital inputs or marshalled to SCADA alarm panels for centralized fault management and predictive maintenance scheduling.

Delivery, Service & Quality Assurance

Lead Time: Standard catalog items typically ship within 3-5 business days from regional distribution centers. Custom-configured modules or large project quantities require 2-4 weeks manufacturing lead time.

Warranty & Support: All SAFT 110 POW modules include a 24-month manufacturer warranty covering defects in materials and workmanship. Extended warranty programs and spare parts kits are available for long-term service agreements.

Technical Documentation: Each unit ships with complete technical data package including: product datasheet with electrical specifications, ATEX/IECEx certificate of conformity, installation and commissioning manual, terminal wiring diagrams, and dimensional drawings in AutoCAD DWG format.

Installation & Commissioning Services: Factory-trained field service engineers are available for on-site installation supervision, loop testing, and safety system validation (subject to geographic availability and project scope).

Certifications & Compliance: Manufactured in ISO 9001:2015 certified facilities with full traceability. Products comply with EU Low Voltage Directive (LVD), EMC Directive, RoHS, and REACH regulations.

Frequently Asked Questions (FAQ)

Q: How does the SAFT 110 POW power supply module integrate with existing non-ABB DCS systems?
A: The module provides standard intrinsically safe DC power output compatible with any 4-20mA or HART field transmitter. Input power accepts universal 24V DC, making it interoperable with Honeywell, Emerson DeltaV, Siemens PCS 7, and other major DCS platforms. Wiring follows industry-standard terminal block layouts documented in the installation manual.

Q: What is the maximum number of field devices that can be powered by a single SAFT 110 POW module?
A: Power budget depends on individual field device current draw and intrinsic safety entity parameters. Typically, one module powers 1-2 transmitters in Zone 0 applications or up to 4 devices in Zone 2 with current-limiting barriers. Consult the ATEX certificate and perform entity calculations per IEC 60079-25 for your specific installation.

Q: What energy savings or efficiency improvements does this intrinsically safe power supply offer?
A: While intrinsic safety modules prioritize safety over efficiency, the SAFT 110 POW achieves >75% typical efficiency with low quiescent power consumption (<2W no-load). Primary value is risk reduction—preventing costly plant shutdowns, explosion incidents, and regulatory non-compliance penalties that far exceed energy costs.

Q: What are the environmental and installation requirements for the SAFT 110 POW in offshore or corrosive atmospheres?
A: The module is rated IP20 for terminal area and requires installation inside a protected enclosure (minimum IP54 for outdoor/offshore use). Conformal coating protects PCB assemblies against salt spray and humidity per IEC 60068-2-52. For extreme vibration environments (offshore platforms, reciprocating compressors), use DIN rail locking clips and verify compliance with IEC 60068-2-6 vibration testing.

Q: Can the SAFT 110 POW support remote monitoring and predictive maintenance through SCADA or asset management systems?
A: Yes, the module provides diagnostic status outputs (relay contacts or solid-state signals) indicating power OK, overload fault, and output short circuit conditions. These can be wired to PLC digital inputs or integrated with ABB Ability™ Asset Health Center for condition monitoring, alarm notification, and maintenance scheduling.

Q: Is the SAFT 110 POW certified for use in North American hazardous locations (NEC 500/505)?
A: Yes, in addition to ATEX and IECEx certifications for international markets, the module carries FM approval for Class I, Division 1, Groups A-D hazardous locations per NEC Article 500, and CSA certification for Canadian installations. Verify specific certification markings on the product nameplate match your jurisdiction requirements.

Request Technical Support & Custom Configuration

For detailed application engineering support, custom power supply configurations, or project-specific quotations, please provide the following information to our technical sales team:

• Project name and end-user facility location
• Hazardous area classification (Zone/Division, Gas Group, T-Class)
• Field device specifications (manufacturer, model, power requirements)
• Quantity required and delivery schedule
• DCS/PLC system architecture and communication protocols
• Environmental conditions (temperature range, humidity, vibration, corrosive gases)

Our certified application engineers will provide one-on-one selection guidance, certified installation drawings, and SIL compliance documentation within 48 hours.

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