Request for Proposal
Status: RFP is Closed

Integrated module of CT core and terminal block

Request Number
Due Date
Sep 29
Program Manager

Joint/contract development, technology licensing, product supply


Phase 1: Proof of Concept: within 6 months
Phase 2: Performance Verification: within 3 months after phase 1
Phase 3: Preparation for mass production: within 1 year after phase 2


Necessary development expense will be covered
(Details to be discussed).


How to  Apply
Click "Respond", complete the form to the extent possible, and submit along with other attachment files available. 
After creating your account for NineSights, your draft will be automatically saved and you can resume later from "Control Center". Please note you do not submit confidential information at this process.
This request for proposals in PDF format is available here.


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RFP was closed on
Oct 2019

RFP Title


Integrated module of CT core and terminal block
RFP Description

NineSigma, representing a global industrial equipment manufacturer (“Client”), seeks integrated module of current transformer (CT) core and terminal block with high robustness and safety for digital relay and digital metering device.

The client would like to seek a development partner for the target below.

Key Success Criteria

Development Target

The target is to develop an integrated module that satisfies the following:

  • Current measurement function
    • Measuring range of the primary current
      • 0.1 ~ 250A
    • Continuous current rating
      • Up to 10A
    • Good linearity: 0.1% or less
    • Low measurement variation: 0.1% or less
  • Robustness against large current
    • There should be no abnormality even if a current of 500A is applied for 1 sec.
    • There should be no abnormality even if a current of 150A is applied for 10 sec.
  • Safety
    • To be safe if the integrated module is disconnected from PCB while primary current applied.
    • To meet UL safety standard


Although the Client seeks CT and terminal block that can meet the above-listed requirements, it is not necessary for all of them to be met at this point. We accept proposals that will likely be verified at a lab level through additional development within 6 to 9 months.

Possible Approaches

Possible Approaches

The Client expects technologies such as the following approaches, but is open to others:

  • CT structure
    • Coil type
    • Window/Through type
    • Sprit/Division type
  • Connection method of Terminal block
    • Screw type
    • Push-in type
Items to be Submitted


The Client engages in the development of integrated module of CT core and terminal block for digital relay and digital metering device applications in the smart energy field (e.g. smart grid, energy management system (ESS), etc.). In order to apply to these applications, safety and robustness against high current and measurement accuracy of the module are required.

To establish a development of integrated module of CT core and terminal block such as customization of conventional products, etc. have been tried. However, there are problems with safety and robustness against high current, etc., As a result, the required characteristics have not been achieved.

Therefore, the Client has decided to make this RFP to quickly identify a high-performance product or a prospective technology development partner, aiming at solving the technological challenges and putting the technology to practical use at an early stage.


Proposal shall have clear points and should not include confidential information. Supplemental files may be submitted in addition to the proposal.


The client will evaluate all responses with the following criteria.

  • Overall scientific and technical merit
  • Approach to proof of concept or performance
  • Economic potential of concept
  • Realism of the proposed plan (action items, timeline, roles, deliverables, cost estimation)
  • Potential for proprietary position
  • Respondents’ capability and related experiences


After the submission due date, the client will review all submitted proposals. NineSigma will send the review results to each proposer 6-8 weeks after the due date. The client possibly asks clarifying questions before selecting the most suitable candidates for collaboration. The client will select best candidates through evaluations. During the selection process, the client may execute NDA with selected respondents, seek further information disclosure, and discuss specific development targets or potential opportunities.
The client will execute necessary agreements with the selected respondents and move to the advanced development phase. Specifics of any collaboration will be determined through consultation with the concerned parties.

Preferred Collaboration Types
Area of Interest