Description
DEIF
TYPE: TAS-331DG
SELECTABLE AC TRANSDUCER
ORDER NO: 400052348.20
COUPLING: 2W3
RANGE: -400…0…4000 KW
RATIO VT: 6.6KV/110V(L-L)
RATIO CT: 400A/5A
INPUT: -83.3…0…833.3W
OUTPUT: 4…5.45…20MA
LIMIT: -24…24MA
LOAD: <500 OHM
SUPPLY: 24V DC
PROTECTION: HOUSING: IP40. TERMINALS:IP20
The DEIF TAS-331DG is a selectable AC transducer designed to measure and convert AC power signals into a standardised analogue output for use within shipboard power management and marine control systems. Operating across a wide active power range of -400 to 4000 kW with a 4–20mA output signal, it provides accurate, continuous power monitoring essential to generator management, load sharing, and electrical distribution oversight onboard commercial and industrial vessels. As a core component in marine control system infrastructure, it enables precise data acquisition from medium-voltage circuits, supporting safe and efficient vessel operations.
Key Features
✓ Selectable AC transducer function converting three-phase active power to a 4–20mA analogue signal, with a midpoint output of 5.45mA corresponding to zero power — suitable for bidirectional power flow monitoring.
✓ Specified voltage transformer ratio of 6.6kV/110V (L-L) and current transformer ratio of 400A/5A, with a 2W3 coupling configuration and a maximum load impedance of less than 500 ohms — all as stated on the original nameplate data.
✓ Powered by 24V DC supply with an output limit range of -24 to 24mA, providing compatibility with standard analogue input cards and power management controllers typically found in marine automation systems.
✓ Enclosure rated IP40 for the housing and IP20 for terminals, making it suitable for installation within protected switchboard panels and control enclosures in dry machinery spaces, subject to local installation requirements.
✓ Manufactured by DEIF, a recognised supplier of marine power management and control equipment — making this transducer a direct fit for DEIF-based generator control and power management panel configurations, subject to confirmation of system compatibility.
Marine Applications
✓ Shipboard power management systems where continuous monitoring of active power across medium-voltage generator sets is required for load sharing and control.
✓ Main switchboard and generator control panels on commercial cargo vessels, tankers, and offshore support vessels equipped with DEIF power management infrastructure.
✓ Electrical distribution monitoring on vessels operating medium-voltage networks (6.6kV class), where accurate CT and VT signal conditioning is critical to system performance.
✓ Retrofit and replacement applications within existing DEIF-based marine automation and control systems requiring a direct transducer replacement to restore accurate power signal output.
✓ Offshore platforms, drilling vessels, and large passenger ferries where generator load management and power quality monitoring are integral to operational safety and efficiency.
Why Marine Engineers Choose
Marine engineers and electrical officers specify the DEIF TAS-331DG for its precise analogue output, wide bidirectional power measurement range, and direct compatibility with DEIF power management platforms — making it a reliable choice for maintaining accurate power data in demanding shipboard electrical environments.
Ideal For
Suitable for commercial cargo ships, tankers, offshore support vessels, drilling units, large ferries, and any vessel class operating DEIF-based power management or generator control systems with medium-voltage electrical infrastructure.
Technical Support & Compliance
Technical assistance is available to support commissioning, integration, and troubleshooting of this transducer within existing marine control system configurations. Support can extend to onboard assistance, loop testing, signal verification, and retrofit guidance — all subject to confirmation of scope and vessel location. To confirm compatibility and suitability, buyers are encouraged to share the original nameplate photographs, order number, system panel model and software version, existing CT/VT ratios, analogue input card specifications, and vessel name or IMO number where relevant. Compatibility and suitability are subject to confirmation based on the information provided.
