Description
Service Barrier Flapper
ABB THQMVSBF Service Barrier Flapper is a field-installed service barrier accessory designed for compatible PowerMark load center applications using a THQMV main breaker configuration.
ABB identifies catalog number THQMVSBF specifically as the THQMV Service Barrier Flapper. ABB lists its PowerMark service barrier kits as field-installed accessories that are normally supplied with service-entrance load centers and main circuit breaker kits. :contentReference[oaicite:0]{index=0}
Product Highlights
- ABB service barrier accessory
- Catalog number THQMVSBF
- THQMV service barrier flapper
- Field-installed accessory
- Designed for compatible PowerMark load centers
- Used with applicable THQMV main breaker configurations
- Intended for service-entrance equipment applications where the barrier is required
- Service barrier kits are UL listed and compliant with UL 67 according to ABB
- Verify exact load center and main breaker compatibility before ordering
Technical Specifications
| Manufacturer | ABB |
|---|---|
| Catalog Number | THQMVSBF |
| Product Type | Service Barrier Flapper |
| Breaker Family | THQMV |
| Accessory Type | Field-Installed Service Barrier |
| Primary Application | Compatible PowerMark Load Centers |
| Typical Equipment Application | Service-Entrance Load Centers / Main Circuit Breaker Configurations |
| Standards Information | ABB lists PowerMark service barriers as UL listed and compliant with UL 67 |
Service Barrier Application
The THQMVSBF is the service barrier flapper associated with compatible THQMV main breaker installations.
ABB includes THQMVSBF in its field-installed service barrier accessories for PowerMark load centers. These service barrier kits are normally supplied with applicable service-entrance load centers and main circuit breaker kits. :contentReference[oaicite:1]{index=1}
The service barrier is part of the equipment's protective arrangement and should be installed only in the approved load center and main breaker configuration.
THQMV Main Breaker Compatibility
THQMVSBF is specifically identified by ABB as the THQMV Service Barrier Flapper. It is not a general-purpose barrier intended to be selected solely by physical size or appearance. :contentReference[oaicite:2]{index=2}
Confirm the exact PowerMark load center, THQMV main breaker kit, service-entrance configuration, conductor arrangement, and manufacturer requirements before ordering or installation.
Model Selection Guide
| Catalog Number | Description | Breaker Family | Application |
|---|---|---|---|
| THQMVSBF | Service Barrier Flapper | THQMV | Compatible PowerMark Load Center / Main Breaker Applications |
Service-Entrance Protection
Service barriers are used as part of the protective arrangement around applicable service-entrance main devices. Their purpose is to maintain the required isolation from energized line-side components when installed in the approved equipment configuration.
ABB states that its PowerMark service barrier kits are UL listed and compliant with UL 67 requirements. :contentReference[oaicite:3]{index=3}
Common Applications
PowerMark Load Centers
- Compatible ABB PowerMark load centers
- Service-entrance load center applications
- THQMV main breaker configurations
- Main circuit breaker kit installations
- Approved replacement accessory applications
Service Equipment
- Compatible service-entrance equipment
- Main breaker protection arrangements
- Line-side barrier applications
- Load center maintenance and replacement
- Manufacturer-approved service barrier installations
Installation & Selection Considerations
- Confirm catalog number THQMVSBF before ordering.
- Verify that a THQMV service barrier flapper is required for the application.
- Confirm compatibility with the exact PowerMark load center.
- Verify compatibility with the exact THQMV main breaker configuration.
- Confirm whether the service barrier is already included with the applicable service-entrance load center or main breaker kit.
- Do not select the barrier based only on physical appearance or dimensions.
- Verify the approved mounting location and orientation before installation.
- Ensure the barrier is correctly positioned to maintain required isolation from line-side live parts.
- Do not modify, trim, drill, or otherwise alter the barrier unless specifically permitted by ABB instructions.
- Use only manufacturer-approved hardware and installation methods.
- Replace any damaged, missing, or improperly fitting service barrier before energizing the equipment.
- Maintain all required barriers, covers, shields, and guards after installation.
- De-energize equipment before installation or service whenever required by the applicable procedure.
- Verify the electrical condition of the equipment before working inside the load center.
- Installation and service should be performed by qualified electrical personnel.
- Follow current ABB instructions, equipment labeling, and applicable electrical codes.
Need Help Selecting a Service Barrier?
Our electrical and industrial product specialists can help review your PowerMark load center, THQMV main breaker configuration, service-entrance arrangement, and service barrier requirements before you order.
Frequently Asked Questions
What is the catalog number?
The catalog number is THQMVSBF.
What is THQMVSBF?
ABB identifies THQMVSBF as the THQMV Service Barrier Flapper.
Is THQMVSBF a circuit breaker?
No. THQMVSBF is a field-installed service barrier accessory for compatible electrical equipment.
What breaker family is THQMVSBF associated with?
THQMVSBF is associated with the THQMV main breaker family.
What equipment is THQMVSBF used with?
ABB lists THQMVSBF with its PowerMark load center field-installed service barrier accessories. Confirm compatibility with the exact load center and THQMV main breaker configuration before installation.
Is the service barrier sometimes included with other equipment?
Yes. ABB states that its PowerMark service barrier kits are normally supplied with applicable service-entrance load centers and main circuit breaker kits. Confirm the contents of the equipment or kit before ordering a separate replacement barrier.
Can I use THQMVSBF with any main breaker?
No. THQMVSBF is specifically identified for THQMV applications. Verify the exact breaker and load center compatibility before ordering.
Why is the service barrier important?
The service barrier is part of the approved protective arrangement used to maintain required isolation from accessible line-side energized components in applicable service equipment configurations.
Important Ordering & Installation Notes
- Product: Service Barrier Flapper.
- Catalog number: THQMVSBF.
- Manufacturer: ABB.
- Product type: Service Barrier Flapper.
- Breaker family: THQMV.
- Application: Compatible PowerMark load centers and THQMV main breaker configurations.
- THQMVSBF is a field-installed accessory and is not a circuit breaker.
- ABB identifies THQMVSBF specifically as the THQMV Service Barrier Flapper.
- Confirm the exact PowerMark load center and THQMV main breaker configuration before ordering.
- ABB states that service barrier kits are normally supplied with applicable service-entrance load centers and main circuit breaker kits, so confirm whether a barrier is already included before ordering a separate replacement.
- Do not substitute THQMVSBF for another service barrier based only on physical appearance or apparent fit.
- Verify that THQMVSBF is the manufacturer-approved service barrier for the exact equipment configuration.
- Confirm the approved mounting position and orientation before installation.
- The service barrier must be correctly installed to maintain the required protective isolation around applicable line-side components.
- Do not energize applicable service equipment with a required service barrier missing, damaged, loose, or incorrectly installed.
- Do not modify or alter the service barrier unless specifically permitted by current ABB instructions.
- Use only manufacturer-approved mounting hardware and installation methods.
- Maintain all required barriers, shields, covers, and guards after installation.
- Inspect the barrier for damage and proper fit whenever associated main breaker equipment is serviced.
- De-energize equipment and follow applicable electrical safety procedures before installation or service.
- Installation and service should be performed by qualified electrical personnel.
- Follow current ABB installation instructions, equipment labeling, and all applicable local and national electrical codes.
