Amironic, the representative of Sensata Technologies’ products in Israel, proudly presents the LineGard™ PGFM series. This state-of-the-art product family offers Equipment Leakage Circuit Interrupter (ELCI) ground fault sensing, tailored to meet the stringent demands of marine environments. Designed and manufactured by North Shore Safety in partnership with Sensata Technologies, the PGFM series integrates seamlessly with Sensata’s Airpax™ LEL and IDLNK series circuit breakers to provide robust protection against electrical faults, ensuring compliance with industry standards such as ABYC E-11.
The PGFM series delivers unparalleled safety and reliability by addressing both ground fault and overcurrent protection needs. This detailed guide explores its features, specifications, applications, and compliance with international standards.
Background
Electrical systems in marine environments face unique challenges due to the presence of water, which can act as a conductor, increasing the risk of ground faults. When an individual comes into contact with a live (hot) wire and a path to ground, it can result in a dangerous current flow through the body, potentially causing injury or fatality.
Marine environments exacerbate this risk, which is why the American Boat & Yacht Council (ABYC) E-11 standards mandate the use of Ground Fault Circuit Interrupters (GFCI). GFCIs operate by sensing imbalances in the current between the hot and neutral conductors. If a ground fault occurs, the imbalance is detected, and the circuit is interrupted within milliseconds to protect individuals from electric shock.
Key Features of the LineGard™ PGFM Series
- Advanced Sensing Technology:
- Monitors current balance in conductors and detects ground faults with high precision (27 mA nominal, 30 mA max).
- Operates using a differential current transformer to maintain continuous monitoring of system integrity.
- Rapid Response:
- Trips within 100 milliseconds (60 ms nominal) upon detecting a ground fault.
- Wide Compatibility:
- Works with single-phase (120 VAC), split-phase (120/240 VAC), and three-wire configurations.
- Compatible with Sensata’s Airpax™ LEL series UL 489-listed and IDLNK UL 1077-recognized circuit breakers.
- Durability:
- Chemical and UV-resistant enclosure for harsh marine environments.
- Designed to withstand temperature ranges from -35°C to +66°C.
- Indicator LEDs:
- Provides clear power and fault status indicators for easy diagnostics.
- Safety Compliance:
- Meets UL 943 Class A and UL 1053 requirements when paired with Airpax™ circuit breakers.
- Fully compliant with ABYC E-11 standards for AC and DC electrical systems on boats.
Specifications
| Parameter | Details |
|---|---|
| Operating Voltage | 120 VAC or 120/240 VAC |
| Interrupting Voltage Rating | Up to 600 VAC |
| Trip Level | 27 mA ± 3 mA |
| Trip Time | ≤ 100 ms (60 ms nominal) |
| Interrupting Current | 5 kAIC for both 120 VAC and 120/240 VAC |
| Reset Type | Automatic on power restoration |
| Operating Temperature Range | -35°C to +66°C |
Marine Applications and System Benefits
The LineGard™ PGFM series is specifically designed to address the unique challenges of marine environments, where water increases the risk of electrical faults. Key benefits include:
- Enhanced Safety:
- Protects individuals from electrical shocks by immediately tripping when a ground fault is detected.
- System Reliability:
- Prevents damage to onboard electrical systems by mitigating risks associated with short circuits and equipment leakage.
- Regulatory Compliance:
- Fully adheres to ABYC E-11 standards, which are critical for ensuring the safety of marine electrical systems.
- Versatility:
- Designed for seamless integration with Airpax™ LEL and IDLNK circuit breakers, allowing flexibility for various installation configurations.
- Application Ideas:
- Shore Power Systems: Ensures safe transfer of power from shore to vessels, protecting against faults caused by water exposure.
- Onboard Electrical Panels: Safeguards critical equipment like navigation systems and lighting circuits.
- Dockside Installations: Prevents ground faults in power distribution systems for marinas.
- Recreational and Commercial Vessels: Protects personnel and equipment in harsh environments, meeting stringent safety requirements.
Airpax™ Circuit Breakers: The Ideal Companion
Sensata’s Airpax™ circuit breakers, including the LEL and IDLNK series, complement the PGFM modules by providing overcurrent and short-circuit protection. Their features include:
- LEL Series:
- UL 489-listed for branch circuit protection.
- Handles up to 50 A with 5 kA interrupting current capacity.
- Available in single-pole, double-pole, and triple-pole configurations.
- Vibration and shock-resistant, meeting MIL-STD-202 requirements.
- IDLNK Series:
- UL 1077-recognized for supplementary protection.
- Incorporates ignition protection per SAE J1171 standards for use in potentially explosive environments.
- Offers automatic or manual reset configurations.
Compliance with Global Standards
The PGFM series ensures compliance with key international standards, making it a reliable choice for marine and industrial applications:
- UL 943:
- Ground Fault Circuit Interrupter (GFCI) standard to protect against unintended electrical paths to ground.
- UL 1053:
- Equipment Leakage Circuit Interrupter (ELCI) certification for advanced ground fault detection and interruption.
- ABYC E-11:
- Sets requirements for AC and DC systems on boats, focusing on ground fault protection and main shore power circuit protection.
- MIL-STD-202:
- Specifies environmental and electrical performance requirements, including moisture, salt spray, shock, and vibration resistance.
- SAE J1171 (UL 1500):
- Provides ignition protection for marine environments, ensuring safety in areas exposed to gasoline fumes.
Installation and Testing
Proper installation and regular testing are critical to ensure the PGFM series operates effectively. Follow these steps:
- Installation Instructions:
- Disconnect power at the main feed before installation.
- Identify line and load wires as per wiring diagrams provided.
- Connect wires according to the specified configuration (120 VAC, 240 VAC, or 120/240 VAC split-phase).
- Mount the PGFM module securely using the provided hardware.
- Testing Procedures:
- Verify proper operation by pressing the “TEST” button. The green LED should turn off, and the red LED should illuminate while tripping the breaker.
- Reset the system by pressing the “RESET” button and manually switching the breaker back on.
- Perform regular maintenance to ensure the module remains in optimal working condition.
Conclusion
The LineGard™ PGFM series is a game-changing solution for ground fault protection in marine applications. Its advanced sensing capabilities, compatibility with Airpax™ circuit breakers, and adherence to international safety standards make it a top choice for safeguarding both people and equipment.
Amironic, as the exclusive distributor of Sensata’s LineGard™ PGFM series, is committed to delivering high-quality products and exceptional support. Contact us today to learn more about how the PGFM series can enhance your marine electrical systems.