Description
ETI PI-250 Circuit Breaker Tester Repair Services
The ETI PI-250 is a critical instrument used by utility relay technicians, substation maintenance crews, switchgear manufacturers, and industrial plant electricians. When this equipment fails or drifts out of specification, June Company delivers expert repair and NIST-traceable calibration to restore full operational accuracy.
About the ETI PI-250
As a circuit breaker tester instrument, the ETI PI-250 is designed for demanding applications. Specifically, circuit breaker testers analyze the timing, motion, contact resistance, and coil performance of medium- and high-voltage circuit breakers. Accurate and reliable performance is essential — measurement drift or component failure can cause costly errors, compliance issues, and project delays.
Common Circuit Breaker Tester Issues We Repair
Our repair process addresses the root cause of every issue:
- High-current contact resistance errors: repaired by technicians experienced with ETI instrumentation
- Timing channel failures: resolved through targeted diagnostics and precision repair techniques
- Motion transducer interface issues: diagnosed through systematic testing and resolved with component-level repair
- Coil current measurement drift: identified during our multi-point inspection and corrected to restore specification performance
Calibration and Performance Verification
Every ETI PI-250 repair includes NIST-traceable calibration covering key parameters such as coil current, contact resistance, and first trip testing. We issue detailed calibration certificates documenting measured performance against manufacturer specifications.
Why Choose June Company for ETI Repair?
Customers choose June Company for our depth of technical expertise:
- Traceable Calibration: NIST-traceable calibration certificates included with every repair
- 90-Day Warranty: All repairs backed by our parts and labor warranty
- Fast Turnaround: Most repairs completed in 5–10 business days
- Category Specialists: Dedicated experience with circuit breaker tester equipment from ETI and related manufacturers
- OEM-Grade Parts: Genuine or equivalent components for lasting reliability
- Nationwide Service: Secure shipping and service for customers across the United States
How Our Repair Process Works
- Free Evaluation: Ship your ETI PI-250 to our facility. We provide a detailed assessment and firm quote at no cost.
- Expert Repair: Certified technicians perform timing channel recalibration, transducer interface repair, measurement circuit restoration, and software updates.
- Calibration: Full NIST-traceable calibration with documented results across all critical parameters.
- Quality Verification: Final functional testing confirms your instrument meets or exceeds original specifications.
- Return Shipment: Securely packaged and shipped with calibration certificate and repair documentation.
Industries We Serve
The ETI PI-250 is used by utility relay technicians, substation maintenance crews, switchgear manufacturers, and industrial plant electricians. June Company understands the operational demands of these fields and the importance of keeping critical test equipment in service.
Request a Repair Quote
Contact June Company for professional ETI PI-250 repair and calibration. Our team is ready to evaluate your instrument and provide a no-obligation quote.
Email: info@juneusa.com






