Load Bank

Amendment / Modification

This amendment modifies the solicitation FA812526Q0033 by:

• Extending the response due date from March 2, 2026, to May 8, 2026, at 12:00 PM CST.

• Attaching a revised item description.

• Deleting the "A26-034 Load Bank - Item Description (ID)" attachment.

• Response Due Date

• Item Description attachment

• The deadline for submitting proposals or quotes has been extended to May 8, 2026.

Form / Attachment / Pricing Sheet

This document details the item description and specifications for a mobile AC Load Bank required for testing and placing a resistive load on 400 Hz aircraft frequency converters and ground power units.

• Quantity: One (1) Portable Resistive Load Bank.
• Input Voltage: 230 VAC Line-to-Neutral / 400 VAC Line-to-Line, 3-Phase, 400 Hz.
• Receptacle: 6-Pin Aircraft Power Receptacle (NSN 5935-01-202-4388).
• Load Capacity: Minimum of 100 kW.
• Load Stepping: Switchable in increments of 10 kW or less, with clear labeling.
• Aircraft Interlock: Standard E/F interlock circuit functionality required.
• Local Display: Integrated digital metering for input frequency (Hz), voltage (V), current (A), and power (kW). Includes 4x BNC female connectors for monitoring.
• Oscilloscope Interface: Minimum of four (4) female BNC connectors for external, per-phase monitoring of voltage and current waveforms.
• Current Sensing Bandwidth: Minimum usable bandwidth of ≥ 30 MHz required for high-speed current transients.
• Mobility: Equipped with heavy-duty casters.
• Handling: Integrated lifting pockets/channels for a standard forklift.
• Noise Limitation: Acoustic noise level not to exceed 70 dB(A) at 7m.
• Thermal Protection: Automatic over-temperature protection.
• Cooling: Forced air cooling with safety interlocks.
• Suggested Sources of Supply: Anderson Airmotive part no. 3-498501 OR ITT Cannon EA376.

This document provides the specific technical requirements and specifications for the requested equipment. Bidders must ensure their proposed load bank meets all listed criteria to be considered compliant.

Amendment / Modification

This amendment (0001) to solicitation FA812526Q0033, originally issued on February 23, 2026, serves to answer questions submitted by industry.

This amendment does not explicitly state which sections of the original solicitation are affected, but it is intended to provide clarifications in response to industry questions.

• The amendment's effective date is February 24, 2026.
• It extends the date and time for receipt of offers, though the specific new deadline is not detailed in this amendment document.
• Offerors are instructed to acknowledge receipt of this amendment as per standard procedures (item 11).

Questions & Answers / Clarifications

This document provides answers to vendor questions regarding the item description for an unspecified opportunity.

• Model Requirement: There is no specific brand or model required; vendors must meet the minimum requirements listed in the item description.
• kVA Rating: A 100 kW load capacity is sufficient. The kVA rating should match the load capacity (100 kVA) for a resistive load bank with a power factor of 1. The equipment must allow for load adjustments in increments of 10 kW or less.
• Gauge Preference: Digital gauges are preferred, but analog gauges are acceptable as the item description did not specify a preference.

This Q&A clarifies key technical specifications and preferences, which may influence vendor proposals. No changes to deadlines or submission rules are indicated.

Form / Attachment / Pricing Sheet

This document details the item description and specifications for a Portable Resistive Load Bank requested by the 76th AMXG/567th.

• Quantity: One (1) Portable Resistive Load Bank.
• Electrical Specifications: 230VAC L-N, 400VAC L-L, 3-Phase, 400 Hz.
• Receptacle: 6-Pin Aircraft Power Receptacle with Shield, compliant with Drawing LE409-0001.
• Suggested Sources of Supply: Anderson Airmotive part no. 3-498501 OR ITT Cannon EA376 (IAW dwg. LE409-0001).
• Load Capacity: 100 kW or more.
• Load Switching: Increments of 10 kW or less.
• Metering: Display input frequency, volts, amps, watts.
• Safety Features: E/F interlock, Thermal Protection.
• Monitoring: 4x BNC female connectors for monitoring input power voltage, current, and frequency per phase with oscilloscope.
• Handling: Casters for ease of transport, Lifting pockets for loading/unloading with forklift.
• Noise Level: Not to exceed 85 dB (A) IAW OSHA standard 29 CFR 1910.95.

This document provides the specific technical requirements and potential sources for the Portable Resistive Load Bank. Vendors should use these specifications to determine their ability to meet the requirements and prepare any necessary proposals or quotes.

Solicitation / RFP / RFQ

This solicitation, FA812526Q0033, is for the procurement of a "Portable Resistive Load Bank" with a Product Service Code of 6150. The contract type is Firm Fixed Price.

• The primary deliverable is a "Portable Resistive Load Bank."

• Specific requirements are detailed in "Item Description" which is referenced as Attachment 01.

• Packaging must ensure undamaged arrival at destination, with specific requirements for shipments exceeding 150 pounds.

• Items require unique item identification and valuation as per DFARS 252.211-7003.

• The solicitation issue date is February 23, 2026.

• The offer due date is March 2, 2026, at 12:00 PM local time.

• Delivery is expected on or before March 09, 2026.

• The contract will be administered by Tinker AFB.

• Quotations will be evaluated based solely on the lowest total evaluated price (TEP) from vendors whose quotes conform to all solicitation requirements.

• Vendors must submit quotations by the specified due date and time.

• Quotations must include a technical description, warranty terms, price, discount terms, "remit to" address, and completed representations and certifications.

• Incomplete quotes or those failing to meet requirements may be considered ineligible for award.

• The government reserves the right to conduct interchanges (oral or written communication) to clarify aspects of the quotation.

• This acquisition is set aside 100% for Small Business.

• The North American Industry Classification System (NAICS) code is 335311, with a size standard of 800 employees.

• Delivery to Tinker Air Force Base requires adherence to specific gate access procedures (Gate 33) and delivery to Building 3001.

• Contractor personnel require identification badges and must comply with REAL ID Act requirements for base access.

• The solicitation incorporates numerous FAR and DFARS clauses by reference, including those related to payment, invoicing, inspection, and contract administration.