Description
DEIF AS
TYPE: TAS-331DG
AC TRANSDUCER
ORDER NO: 100207054.20
COUPLING: 1W3
RANGE: 0…1200KW
RATIO VT: /440V(L-L)
RATIO CT: 2000A/5A
INPUT: 0…3000W
OUTPUT: 4…20MA
LIMIT: -24…24MA
LOAD: < 500 OHM
SUPPLY~: 440V AC
PROTECTION: HOUSING: IP40. TERMINALS: IP20
ART.NO.: 123560
600V CAT III.
The DEIF TAS-331DG is a single-phase, three-wire active power AC transducer designed for accurate measurement and signal conversion of electrical power in marine control systems. It converts AC power inputs from voltage and current transformers into a standardised 4–20mA analogue output signal, enabling precise monitoring of generator and distribution load conditions across shipboard power management and control systems. As a core component within marine electrical control infrastructure, it supports reliable load sharing, power optimisation, and system protection functions onboard.
Key Features
✓ Measures active power over a 0–1200kW range with a 4–20mA analogue output and a load impedance of less than 500 ohm, suitable for integration with PLCs, controllers, and power management systems.
✓ Operates on a 440V AC supply with voltage transformer ratio of /440V (L-L) and current transformer ratio of 2000A/5A, as specified in the product data; rated at 600V CAT III for industrial and marine electrical environments.
✓ Housing protection rated IP40 and terminal protection rated IP20, making it suitable for installation within enclosed switchboard panels and control cabinets in dry machinery spaces.
✓ Single-wire, three-phase coupling (1W3) configuration with an output limit range of -24 to 24mA, providing flexibility for load monitoring in generator control and power distribution panels.
✓ Designed for straightforward panel mounting and replacement within existing DEIF-based control architectures; compatibility with specific panels or controllers subject to confirmation based on system configuration.
Marine Applications
✓ Generator management and load monitoring systems on merchant vessels, where accurate active power measurement is essential for load sharing and frequency control.
✓ Main switchboard and emergency switchboard power monitoring on cargo ships, tankers, and offshore support vessels.
✓ Integration within DEIF power management systems and automatic voltage regulation control loops requiring analogue feedback signals.
✓ Diesel-electric propulsion plant monitoring on ferries, platform supply vessels, and drillships where real-time power data supports dynamic positioning and load control.
✓ Retrofit and upgrade of ageing power monitoring infrastructure where a reliable, calibrated transducer output is needed to interface with modern automation or SCADA systems.
Why Marine Engineers Choose
The DEIF TAS-331DG is a well-established transducer within marine power control applications, valued for its clearly defined electrical specifications, standardised analogue output, and compatibility with professional-grade switchboard and generator control equipment. Its CAT III voltage rating and defined protection levels make it a dependable choice for shipboard electrical environments where signal accuracy directly impacts plant safety and operational efficiency.
Ideal For
Merchant vessels, tankers, bulk carriers, offshore support vessels, platform supply vessels, ferries, drillships, and any vessel type operating DEIF-based or compatible power management and generator control systems requiring active power transducer functionality.
Technical Support & Compliance
Technical assistance is available to support remote troubleshooting, onboard diagnostics, commissioning, and integration of this transducer within existing marine control systems. Retrofit and upgrade guidance can be provided where the unit is being installed as a direct replacement or as part of a broader system modification — subject to confirmation of system compatibility. To verify suitability, buyers are advised to share nameplate photographs, the full order number (100207054.20), existing panel or controller model and software version, associated wiring diagrams or drawings, and vessel name or IMO number where relevant. All compatibility and interoperability assessments are subject to confirmation based on the information provided.
