Description
FISHER-ROSEMOUNT SYSTEMS, INC.
KJ1501X1-BA2
DELTAV SYSTEM POWER SUPPLY (AC/DC)
12P0677X062
REV: N
INPUT POWER RATING: 120VAC, 0.34A / 230VAC, 0.17A
OUTPUT POWER RATING: 12 VDC, 2.1A
OUTPUT POWER RATING: 5 VDC, 2.0A
OUTPUT POWER RATING: 3.3 VDC, 0.5A
NOTE: COMBINED OUTPUT POWER OF 5VDC AND 3.3VDC: 10 WATTS MAX.
NOTE: COMBINED OUTPUT POWER OF ALL OUTPUTS: 25 WATTS MAX.
AMBIENT TEMPERATURE: 60°C MAX.
ALARM RELAY CONTACT RATING: 30VDC, 2A OR 250VAC, 2A
UB31564
JOB: 2137720001
The Fisher-Rosemount KJ1501X1-BA2 is a multi-output AC/DC power supply designed for use within the Emerson DeltaV distributed control system platform. It provides regulated DC power across three voltage rails — 12 VDC, 5 VDC, and 3.3 VDC — to support the logic, I/O, and communication components that form the backbone of vessel automation. As a Marine Control System component, reliable power conditioning at this level is critical to maintaining uninterrupted process control, alarm management, and system integrity aboard commercial and industrial vessels.
Key Features
✓ Accepts wide-range AC input at either 120 VAC (0.34 A) or 230 VAC (0.17 A), making it suitable for vessels operating across different regional power standards.
✓ Delivers three regulated DC output rails: 12 VDC at 2.1 A, 5 VDC at 2.0 A, and 3.3 VDC at 0.5 A, with a combined maximum output of 25 watts across all rails — as specified on the original nameplate.
✓ Integrated alarm relay rated at 30 VDC / 2 A or 250 VAC / 2 A, enabling power fault signalling to supervisory or safety systems without additional relay hardware.
✓ Rated for ambient operating temperatures up to 60°C, suitable for installation in engine room control panels, automation cabinets, and enclosed machinery spaces subject to elevated thermal conditions.
✓ Designed specifically for compatibility with the Emerson DeltaV control system architecture; replacement and retrofit suitability for other configurations is subject to confirmation based on system version and I/O topology.
Marine Applications
✓ Distributed control system (DCS) power supply replacement aboard vessels running Emerson DeltaV-based automation platforms for engine room or cargo management.
✓ Power conditioning for I/O modules, controller cards, and communication interfaces within integrated bridge and machinery automation systems.
✓ Support for alarm and monitoring panel infrastructure on tankers, bulk carriers, and offshore support vessels where continuous system availability is operationally essential.
✓ Retrofit or upgrade applications where legacy DeltaV power supply modules require like-for-like replacement to restore system function without full control system overhaul.
✓ Commissioning and fault-recovery scenarios during dry dock or scheduled maintenance periods where control system power integrity must be re-established quickly.
Why Marine Engineers Choose
The KJ1501X1-BA2 is a purpose-built component for the DeltaV platform, offering nameplate-verified electrical ratings and an integrated alarm relay output — reducing the risk of mismatched replacements and supporting straightforward reintegration into existing control system enclosures during planned or emergency maintenance.
Ideal For
Tankers, bulk carriers, container vessels, offshore support vessels, FPSOs, and any commercial or industrial marine vessel operating an Emerson DeltaV distributed control system requiring power supply module replacement or sparing.
Technical Support & Compliance
Technical assistance is available to support remote fault diagnosis, onboard troubleshooting, and system reintegration for DeltaV control system power supply replacements. Support can extend to pre-installation testing, commissioning verification, and guidance on retrofit or upgrade compatibility — subject to confirmation. To verify suitability for your specific installation, buyers should provide nameplate photographs, the full part number and revision level, the DeltaV system version and controller type, enclosure or panel drawings where available, and vessel name or IMO number. Compatibility with specific I/O configurations or control system versions is subject to confirmation based on the information provided.
