Circuit Breaker Repair and Maintenance

Expertise in electrical circuit breaker upgrades, circuit breaker replacements and retrofitting

Saber Power Field Services operates multiple, state-of-the-art breaker shop staffed by highly skilled technicians with extensive experience servicing equipment from all major manufacturers. Our team understands the specific testing, refurbishment, and compliance requirements associated with legacy and modern breaker platforms alike.

Low-voltage power circuit breaker reconditioning

Services:

• Reconditioning
• Remanufacturing
• Retrofitting
• Circuit breaker maintenance program
• Loaner breaker program (or contactor program)
• Upgrades/calibrations (overload and relay)
• Breaker replacement
• Pre-commissioning
• Accessory installation

Types of Equipment Serviced:

• Molded-case breakers
• Insulated-case breakers
• Switchgear breakers 240 V to 38 kV
• MCC buckets and vertical sections
• MV contactors
• Motor starters
• Obsolete breakers and controls
• Reclosers, oil and vacuum

Reconditioning

Reconditioning includes a complete teardown of the circuit breaker current path. Components are cleaned, inspected, lubricated, reassembled, and adjusted in accordance with OEM specifications.  The operating mechanism is removed from the frame, thoroughly cleaned, and inspected. Bearings and bushings are cleaned, evaluated, and properly lubricated. All grease buildup and contaminants are removed to restore reliable mechanical operation.

Remanufacturing

Remanufacturing involves a complete teardown of the entire circuit breaker, including the operating mechanism, current path, and control wiring. All hardware is nickel-plated, copper components are silver-plated, and the breaker frame is powder-coated to restore structural integrity and appearance. Upon completion, the breaker is returned to a condition comparable to a new factory unit. Remanufacturing represents our highest level of refurbishment service.

Retrofit and Life-Extension Services

Modern retrofit technologies allow facilities to incorporate the performance and protection of state-of-the-art equipment at a fraction of full replacement cost.

From our dedicated breaker shop, Saber Power Field Services rebuilds and retrofits:

• Low and medium-voltage circuit breakers
• High-pressure contact switches
• Starters and contactors
• Motor control centers (MCCs)
• Busway systems
• Medium-voltage disconnects
• Other electrical distribution equipment

AC-Pro® Retrofit Solutions (Low-Voltage Breakers)

AC-Pro retrofits enhance protection and safety while preserving existing switchgear infrastructure.

Key advantages include:

• Full protection coverage with no rating plugs required
• Non-volatile memory retention of the most recent trip data
• QUICK-TRIP™ functionality, which can be enabled or disabled without opening the cubicle door—reducing arc flash exposure during energized work

Breaker Maintenance Program

Saber Power Field Services assists customers with the ongoing responsibility of maintaining safe, reliable circuit breaker operation.

Our Breaker Maintenance Program:

• Tracks each serviced breaker
• Notifies customers of manufacturer and/or NETA-recommended maintenance intervals
• Provides advance quotations for required service

Program Benefits:

• Fewer contractors onsite
• Reduced downtime
• Improved system reliability
• Simplified maintenance tracking
• Reduced administrative burden

Program Terms:

• One-year warranty remains in effect if preventive maintenance or enrollment in a new maintenance cycle occurs within 30 days of the prior service anniversary
• Remanufactured breakers are typically evaluated every 9–12 years, depending on condition
• Timelines may vary due to failure, fault, or damage outside program scope

Maintenance Program Schedule

• Warranty subject to Saber Power Services, LLC terms and conditions.
• 1 year warranty remains in effect if preventive maintenance or commitment to a new maintenance program occurs no later than 30 days from previous service anniversary.
• Remanufactures will be quoted every 9 or 12 years, pending the condition of the breaker.
• Program timelines may vary due to failure, fault or damage of equipment outside of the maintenance program.

Loaner Breaker Program

Need to recondition or remanufacture a breaker but don’t have a spare?

Our Loaner Breaker Program is designed to:

• Reduce downtime
• Maintain preventive maintenance schedules
• Support corrective repair initiatives

While titled “Loaner Breaker Program,” this service is also available for medium-voltage contactors.  Participation requires reconditioning, remanufacturing, or a combination of both services.

480 V Molded-Case, Insulated-Case and Switchgear Breakers

We provide cleaning, repair, calibration, and modernization services including:

• Solid-state trip unit upgrades
• Electronic communication capabilities
• Adjustable protection settings
• Enhanced system protection
• Power quality monitoring
• Energy management integration

2.4 kV to 38 kV Circuit Breaker Upgrades (Vacuum & SF₆)

Upgrading to vacuum or SF₆ technology improves reliability and extends maintenance intervals. Additional benefits include increased interrupting, momentary, and continuous current ratings. Vacuum and SF₆ retrofits also offer significant benefits compared to legacy air-magnetic, air-blast, or oil breakers, including:

• Reduced size and weight
• Simplified mechanical design
• Elimination of asbestos arc chutes and arc by-products
• Extended mechanical and electrical life
• Enhanced safety, monitoring, and energy performance capabilities

Relay Upgrades

Saber Power Field Services upgrades legacy electromechanical or solid-state relays to modern digital protection systems from manufacturers such as Schweitzer, GE, and Basler.

Benefits include:

• Expanded protection flexibility
• Increased independent function availability
• Compact panel or rack-mount designs
• LCD displays with real-time metering
• Remote communications for alarms and fault data
• Reduced maintenance and calibration requirements

Direct Replacement Breakers

Modern replacement breaker technologies allow facilities to upgrade obsolete equipment without replacing existing switchgear.

Replacement breakers are engineered to fit within existing cells with minimal modification, while maintaining original safety interlocks.

Typical benefits include:

• Lower cost and downtime compared to full equipment replacement
• Improved system reliability
• Reduced maintenance and operating costs
• Elimination of obsolete spare part sourcing
• Advanced digital trip devices
• Added ground fault protection
• Expanded short circuit and continuous current capability
• Compliance with applicable ANSI standards
• Through-door racking and trip unit display options
• Arc flash–limiting technology for enhanced safety

Saber Power Field Services earns full-service member status from PEARL. Learn more.