Description
DEIF
TYPE: FC-5 TB
TRANSAL RELAY
NO.: 69479-17
MODEL: 20A-10A
RELAY 1: MIN A RELAY 2: MAX A
INPUT: 50-70 MEAS (100V) HZ
OUTPUT: 0-1 V DC
LOAD, RL: MIN 200
AUX.SUPPLY: 24 V DC 6VA
The DEIF FC-5 TB is a Transal current monitoring relay designed for use within marine control systems, providing dual-function overcurrent and undercurrent protection through two independent relay outputs. Configured with Relay 1 for minimum current detection and Relay 2 for maximum current detection, this component plays a critical role in safeguarding electrical machinery and automation circuits aboard commercial and industrial vessels. As part of the broader Marine Control System category, it ensures that equipment operates within defined current thresholds, enabling automatic protective action before damage or operational failure occurs.
Key Features
✓ Dual-relay configuration with Relay 1 set for minimum current (MIN A) and Relay 2 for maximum current (MAX A), enabling both undercurrent and overcurrent monitoring in a single unit.
✓ Confirmed electrical specifications: input frequency range 50–70 Hz measured at 100V, analogue output 0–1V DC, minimum load resistance 200 Ω, and auxiliary supply of 24V DC at 6VA.
✓ Rated model 20A–10A, indicating upper and lower current threshold ranges; exact setpoint configuration should be confirmed against the original system documentation or nameplate data.
✓ Compact relay format typical of DIN-rail or panel-mount installation within enclosed control cabinets — installation environment and mounting arrangement subject to confirmation based on vessel-specific switchboard layout.
✓ Designed as a direct replacement component within DEIF-based marine control and monitoring systems; compatibility with specific panels or controllers should be verified against system model and wiring drawings before installation.
Marine Applications
✓ Current monitoring and protection within main switchboard or emergency switchboard automation systems on merchant vessels and offshore units.
✓ Machinery control panels where undercurrent or overcurrent conditions must trigger protective relay outputs for pumps, compressors, or auxiliary motors.
✓ Power management and load monitoring systems requiring accurate current threshold detection across varying frequency inputs (50–70 Hz).
✓ Automation retrofit or upgrade projects aboard vessels running DEIF-based control architectures, where original relay units require like-for-like replacement.
✓ Integrated monitoring systems on tankers, bulk carriers, offshore support vessels, and ferries where reliable current supervision is essential to continuous safe operation.
Why Marine Engineers Choose
The DEIF FC-5 TB Transal Relay is a trusted component in marine electrical protection circuits, offering dual-threshold current supervision with a clear analogue output signal. Its defined input and auxiliary supply specifications make it straightforward to integrate into existing DEIF control system architectures, reducing downtime during replacement or maintenance.
Ideal For
Merchant vessels, offshore platforms, ferries, tankers, bulk carriers, and any vessel class operating DEIF marine control and power management systems requiring current monitoring relay protection.
Technical Support & Compliance
Remote troubleshooting guidance, onboard commissioning support, relay testing, and system integration assistance are available subject to confirmation of vessel-specific requirements. For retrofit or upgrade projects, compatibility verification against the existing DEIF control system is strongly recommended. To confirm suitability, buyers are advised to share nameplate photographs, the part number 69479-17, relevant wiring diagrams or single-line drawings, the panel or controller model and software version, and vessel name or IMO number where applicable. All compatibility and fitment assessments are subject to confirmation based on documentation provided.
