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Hammond Power SPFBAK1 - Control Transformer Accessories - Fuse Block Adapter Kit, 50 to 500 VA, AR, QR, PR, KHR, SR Suffixes

Hammond Power SPFBAK1 Control Transformer Accessories - Fuse Block Adapter Kit, 50 to 500 VA, AR, QR, PR, KHR…

UPC: 803423099459


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BrochureTechnical BulletinSpecification Sheet

Contact for Pricing

Call +1 (262) 252-1600 (toll-free 877-268-3700) or email [email protected] for pricing and availability.

Overview

The Hammond Power SPFBAK1 Fuse Block Adapter Kit is a mechanical accessory designed to enable the installation of third-party aftermarket fuse block assemblies on HPS open-style control transformers. This kit is compatible with HPS control transformers in the 50 to 500 VA range featuring AR, QR, PR, KHR, or SR suffixes, providing a standardized mounting solution for custom fuse block integration. The SPFBAK1 includes all necessary hardware—jumper wires, mounting screws, and finger guards—ensuring a secure and compliant installation without altering the transformer’s primary or secondary wiring. Note that the kit does not include fuses or jumpers; users must source these components separately based on their specific transformer ratings and local electrical codes. The adapter kit is ideal for retrofitting existing installations or customizing new setups where precise overcurrent protection is required. Compatible with molded terminal block transformers, the SPFBAK1 maintains compliance with UL and CSA standards while offering flexibility for engineers and technicians to integrate preferred fuse block solutions. For detailed dimensional compatibility, refer to the HPS Transformer Products catalog or contact technical support at 1-866-705-4684 (US), 1-888-798-8882 (Canada), or 1-819-690-8000 (Mexico).
  • Compatible with HPS control transformers (50-500 VA) with AR, QR, PR, KHR, SR suffixes
  • Includes mounting hardware: jumpers, screws, and finger guards for safety
  • Mechanical adapter only—does not include fuses or jumpers (user-supplied)
  • Designed for third-party aftermarket fuse block assemblies
  • Maintains compliance with UL and CSA electrical standards

Specifications

Application
Add finger safe covers and terminal blocks options.
Color
Clear
Connection
Snap On
Material
Plastic
Special Features
Add fingersafe covers or terminal blocks
Standard
Not Applicable
Type
Accessories > Finger Guards
Voltage Rating
Not Applicable
Wattage
Not Applicable
Package Weight (Imperial)
0.500 L
Package Weight (Metric)
0.227 kg
Control Transformer Accessories - Optional Unfused Finger Guard Kits, 50 VA, For AJ, AR, MQMJ, MEMX, QR, SP, PG, PP Suffixes

FG1

Control Transformer Accessories - Optional Unfused Finger Guard Kits, 50 VA, For AJ, AR, MQMJ, MEMX, QR, SP, PG, PP Suffixes
Large Power Distribution Block Cover Large power distribution block covers are see through, clear acrylic covers to permit visual inspection. Snaps easily into place. For use with connector blocks series with prefix AL.

CL

Large Power Distribution Block Cover Large power distribution block covers are see through, clear acrylic covers to permit visual inspection. Snaps easily into place. For use with connector blocks series with prefix AL.
Single lever locking inline coupler hood with top entry, 3 or 4 contacts, NPT entry - 1 Inch x 3/8 Inch

CH803APMV

Single lever locking inline coupler hood with top entry, 3 or 4 contacts, NPT entry - 1 Inch x 3/8 Inch
Single lever locking panel base with metal cover. For use with B24, K12, D64 and DD108 series.

PB424M

Single lever locking panel base with metal cover. For use with B24, K12, D64 and DD108 series.
Single lever locking panel base with metal cover. For use with B16, C6, V6, D40 and DD72 series.

PB416M

Single lever locking panel base with metal cover. For use with B16, C6, V6, D40 and DD72 series.
Single lever locking panel base with metal cover. For use with B10, V3 and DD42 series.

PB410M

Single lever locking panel base with metal cover. For use with B10, V3 and DD42 series.
Single lever locking panel base with cover. For use with A16 and D25 series.

PB416A

Single lever locking panel base with cover. For use with A16 and D25 series.
Double lever locking panel base for use with series B16, C6, V6, D40 and DD72.

PB116E

Double lever locking panel base for use with series B16, C6, V6, D40 and DD72.

Frequently Asked Questions

What is the VA range for the HPS Imperator series?

The HPS Imperator series offers a VA range from 50VA to 1500VA.

What type of fuse clips are used with this transformer?

Standard secondary fuse kits use 13/32” x 1 1/2” midget/type CC fuse clips. Optional primary fuse kits are also available.

What is the temperature rise for different VA ratings?

For 50-150VA units, the temperature rise is 55°C. For 250-1500VA units, the temperature rise is 80°C.

What wire gauges are compatible with the termination screws?

The termination screws are suitable for 18 AWG to 14 AWG solid or 14 AWG stranded wire.

Does the transformer come with a warranty?

Yes, the HPS Imperator industrial control transformer line is backed by a LIFETIME warranty (Limited).

What is the maximum allowable current rating for fuse kits?

The maximum allowable current rating on all primary and secondary fuse kits is 30 amps.

What is the purpose of the encapsulated windings?

The encapsulated windings and internal terminations protect the transformer from moisture, dirt, and other airborne contaminants.

What types of wire connections can be made?

The custom serrated terminals allow for quick connections with bare, solid, or stranded wire, and also accommodate ring or spade termination connectors.

Are finger-safe terminal covers available?

Yes, optional finger-safe terminal covers are available on all units.

What are the operating frequency requirements for this transformer?

The transformers operate at 50/60 Hertz, with specific models (PH***AJ & PH***AR) operating at 60Hz.

Frequently Asked Questions about Hammond Power

What certifications and standards do Hammond Power products comply with?

Hammond Power products are certified to UL (Underwriters Laboratories) and CSA (Canadian Standards Association) standards in North America. Our products meet rigorous safety and performance requirements, with many items classified as UL Listed Products or Recognized Components. We also comply with international certifications including China Compulsory Certification (CCC), C-Tick for Australian EMC requirements, and ANCE for Mexico.

What is Hammond Power's warranty policy?

Hammond Power provides a standard one-year warranty on all products, covering defects in workmanship and materials. Products will be repaired or replaced free of charge if found defective upon factory inspection. The warranty does not cover damage from improper handling, incorrect application, or faulty installation.

What industries and applications are Hammond Power products used for?

Hammond Power products are engineered for critical industrial and commercial applications across multiple sectors, including petrochemical, mining, construction, renewable energy, e-mobility, power storage, and microgrids. Their comprehensive product range of dry-type transformers, power quality solutions, and magnetic components enables electrical distribution and electrification in diverse industrial environments worldwide.

What are the main product lines offered by Hammond Power?

Hammond Power Solutions offers a comprehensive range of dry-type and liquid-filled transformers for industrial and commercial applications. Their primary product lines include power transformers for renewable energy, e-mobility, data centers, microgrids, and industrial settings. The company provides both standard and custom-designed transformer solutions that are critical to electrical distribution networks across multiple industries.

What are the key features of Hammond Power products?

Hammond Power products feature advanced dry-type and liquid-filled transformers engineered for diverse industrial applications, with capabilities spanning renewable energy, e-mobility, data centers, microgrids, and industrial/commercial sectors. Key features include high-performance electrical steel laminations, windings available in copper or aluminum, advanced insulation systems (VPI or Cast Resin), Basic Impulse Level ranges from 10 kV to 250 kV, and custom design capabilities with over 3,000 unique transformer designs engineered annually.

What environmental ratings do Hammond Power products have?

Hammond Power offers industrial enclosures with comprehensive environmental ratings, including UL/cUL 508A ratings of Type 1, 2, 3, 4, 4X, 12, and 13. Their products meet IEC 60529 IP66 standards, providing robust protection against dust, water ingress, and harsh environmental conditions. Specific ratings vary by product series, with options ranging from indoor Type 1 enclosures to outdoor-rated Type 4X enclosures suitable for challenging industrial environments.

What technical support does Hammond Power offer?

Hammond Power Solutions provides comprehensive technical support through multiple channels. Customers can access technical resources via phone support in Canada, the United States, Mexico, and internationally, with toll-free numbers and regional contact points. Their technical team offers personalized assistance for custom design inquiries, helping customers find standard transformer and power solutions or develop specialized electrical products for various industrial applications.

What communication protocols do Hammond Power products support?

Hammond Power products support multiple industrial communication protocols, including Modbus RTU, PROFIBUS DP, PROFINET, EtherNet/IP, and CANopen. These protocols enable flexible connectivity across industrial automation platforms, supporting various network topologies and high-speed data transmission for comprehensive industrial control and monitoring applications.

What accessories are available for Hammond Power products?

Hammond Power offers a comprehensive range of accessories for industrial electrical components, including HME Series handles with key locking and padlocking options, door stop kits, light kit mounting brackets, and standard hardware like mounting screws and washers. These accessories are designed to enhance functionality and installation flexibility across their product lines.

How are Hammond Power products typically installed?

Hammond Power transformers are typically chassis-mounted using precise mounting hole centers and dimensions specific to each product series. Installation involves selecting the appropriate primary voltage configuration, securing the transformer to a mounting surface using the specified mounting holes, and connecting terminals according to the product's schematic. Most Hammond Power transformers feature multiple terminal options like solder or quick-connect terminals, allowing flexible and straightforward installation in industrial control and power distribution applications.