Product Overview
GE 12IAC77B34A Time Overcurrent Relay Type IAC - Used
This is a General Electric 12IAC77B34A time overcurrent relay, Type IAC, with a 4/16 time setting. It carries instruction reference GE H-2059.
GE’s protective relays have been industry standards for decades, valued for their reliability in power distribution and electrical protection. This unit appears unused based on its like-new cosmetic condition, though it is being sold as used due to lack of packaging and test verification.
Product Condition
Used. Excellent cosmetic condition with minimal signs of handling. No manufacturer’s packaging. Untested due to lack of equipment and knowledge. No manuals or accessories are included. Unit will be securely packed for shipping.
Product Overview
The GE IAC series time overcurrent relays are designed for protective functions in electrical distribution systems. Model 12IAC77B34A provides adjustable time-delayed response to overcurrent conditions, helping safeguard circuits and equipment. Built with GE’s legacy of durable relay design, it remains a trusted component in utility and industrial systems.
Key Features
- Brand: General Electric
- Model: 12IAC77B34A
- Type: IAC (time overcurrent relay)
- Time setting: 4/16
- Instruction sheet reference: GE H-2059
- Excellent cosmetic condition
- Protective relay for electrical distribution
- Compact design for panel mounting
Applications
- Power distribution system protection
- Utility and substation relay panels
- Industrial motor and feeder protection
- Backup protection for breakers and fuses
- Engineering labs and training setups
- Replacement relay in legacy GE systems
Frequently Asked Questions
What is the model of this relay?
It is a General Electric 12IAC77B34A, Type IAC time overcurrent relay.
What is the time setting?
The relay has a time setting of 4/16.
Has this relay been tested?
No. It has not been tested, but it powers on visually in excellent condition. It is being sold as used.
Does this relay come with manuals or accessories?
No. Only the relay is included. The original GE instruction reference is H-2059.
What is the overall condition?
It appears in excellent cosmetic shape, showing little to no signs of use. Being sold as used due to lack of packaging and test verification.
Part of GE’s long-running line of protective relays, this IAC unit reflects the durability and precision that made the brand a utility standard — its next service role awaits with you.
