12IFC77B1A GE Incomplete Inverse Overcurrent Relay

Review GE Incomplete Type Extremely Inverse Time Overcurrent Relay

The GE 12IFC77B1A Inverse Overcurrent Relay is a versatile and reliable protective device designed for use in various electrical applications. This particular model falls under the category of inverse time overcurrent relays, which are known for their ability to disconnect a circuit when the current flowing through it exceeds a predetermined level.

The GE 12IFC77B1A is a compact and robust unit, designed with a plastic encapsulated enclosure that provides protection against harsh environmental conditions. It is suitable for mounting in a NEMA 1, 2, 3, 4, 5, 6, 12 or 13 enclosure.

The relay features a current transformer input for measuring the current flow in the protected circuit. It has a normal pickup current setting of 125% of the rated current of the protected circuit, and a trip current setting that can be adjusted between 125% and 200% of the rated current.

One of the key benefits of this relay is its inverse time characteristic, which means that the time it takes for the relay to trip decreases as the current flowing through it increases. This provides enhanced protection against short circuits and other faults that can cause high currents.

The GE 12IFC77B1A also has a number of built-in protective features, including overvoltage protection and thermal protection. It is suitable for use with single-phase AC voltage up to 600 volts.

The relay has a number of terminals for various connections, including input terminals for the current transformer, output terminals for the contacts, and auxiliary terminals for remote control and indication purposes. The contacts are rated for 10 amps at 600 volts and can be configured as normally open or normally closed.

The GE 12IFC77B1A Inverse Overcurrent Relay is easy to install and operate, with clear markings on the terminals and a user-friendly adjustment dial for setting the trip current. It is also suitable for use in applications where frequent adjustments are required, as it has a quick-acting mechanism that allows for easy adjustments without the need for tools. Overall, this relay is an essential component for any electrical system that requires reliable and effective overcurrent protection.

The General Electric (GE) 12IFC77B1A Incomplete Inverse Overcurrent Relay is an essential protective device used in electrical systems to detect and disconnect the power supply in case of overcurrent conditions. Here are some pros and cons of buying this particular relay:

1. High Reliability: GE is a well-known and reputable brand in the electrical industry. The 12IFC77B1A relay is designed with high-quality components, ensuring reliable performance and long service life.

2. Flexibility: This relay is available in various configurations to suit different applications. It can be used for both AC and DC applications and can be set for various overcurrent levels.

3. Easy Installation: The relay comes with clear instructions for installation, making it easy to install and commission.

4. Protection against Overcurrent: The primary function of the relay is to protect electrical systems from overcurrent conditions, which can cause damage to equipment and pose safety hazards.

5. Cost-Effective: Compared to other protective devices, the 12IFC77B1A relay is relatively affordable, making it a cost-effective solution for electrical system protection.

1. Complexity: The relay may appear complex to install and commission for those without extensive electrical knowledge. However, the instructions provided with the relay are clear and easy to follow.

2. Limited Functionality: While the relay offers a range of configurations, it may not be suitable for more complex applications that require additional protective functions.

3. Requires Regular Maintenance: Like all electrical equipment, the relay requires regular maintenance to ensure optimal performance and longevity.

The GE 12IFC77B1A Incomplete Inverse Overcurrent Relay is a reliable and cost-effective solution for electrical system protection against overcurrent conditions. Its flexibility in terms of configurations and applications makes it a versatile choice for various electrical systems. However, it may require some electrical knowledge for installation and commissioning, and it may not be suitable for more complex applications that require additional protective functions.

If you are looking for a reliable and cost-effective solution for electrical system protection against overcurrent conditions, the GE 12IFC77B1A Incomplete Inverse Overcurrent Relay is a good choice. However, if you require additional protective functions or have more complex applications, you may want to consider other protective devices that offer more functionality. It is always recommended to consult with a qualified electrical engineer or professional before making a purchase or installation.

Details:

With a durable construction including abs/plastic, brass, and copper contact materials, this heavy-duty relay also offers features like timer auto-off functionality. The Ge type 12IFC77B1A is an extremely inverse time overcurrent relay designed for interior use. This item is missing the bottom black card with silver coated brass contacts that slides in but otherwise whole and excellent condition. It features a maximum amperaGe of 150a and is suitable for industrial applications such as power transformers electrical wiring.

Made in the USA, this power relay operates at 50/60 hertz and is a valuable component for ensuring safety efficiency of electrical circuits. The Ge relay is heat and rust resistant, making it a reliable choice for providing overcurrent protection in electrical systems.

specifications genpurrelays:

• brand: Ge
• mpn: 12ifc77b1a
• mounting style: Deep Box, Screw
• maximum amperage: 150 A
• current rating: 101-150 A
• item length: 8 In
• suitable for: Interior
• current type: Ac
• type: Power Relay
• unit type: Unit
• contact material: Abs/plastic, Abs/thermoplastic, Brass, Copper
• features: Timer, Auto-off, Heavy Duty
• resistance properties: Heat Resistant, Rust Resistant
• application: Industrial, Electrical Wiring, Power Transformers
• protection properties: Overcurrent Protection
• country of origin: United States
• power: 50/60 Hertz

payments Genpurrelays:

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shipping Genpurrelays:

• transit: 5-11 days
• service: usps ground advantaGe
• class: standard
• type: calculated
• carrier: usps

returns Genpurrelays:

• policy: no returns

seller Genpurrelays:

• # reviews: 22
• rating: 100.0%
• city: newton falls, new york

general genpurrelays:

• category: Business & Industrial > Electrical Equipment Supplies > General Purpose Relays

offer Genpurrelays:

• options: ship-to-home
• availability: in stock
• in stock #: 2
• sold #: 15
• started: december 5, 2025
• prices: $79.99–$499.99
• item condition: Used
• best offers: true