Electrical Engineer for Pre-Compliance Review (120 VAC Control Device, UL/ETL Readiness)

Project Description

We have a newly designed product consisting of low-voltage control circuitry (microcontrollers, relays, and associated electronics) that switches 120 VAC at approximately 1 amp.

The device is intended for installation within AC power cabinets supplying power to industrial equipment and machinery.

We are seeking an experienced subcontractor to:

Identify applicable safety and compliance standards

Evaluate the current design against those standards

Recommend necessary design, layout, or packaging changes to achieve compliance

The immediate goal is to prepare the product for eventual certification. Formal submission to a Nationally Recognized Testing Laboratory (NRTL) is not part of this scope.

Scope of Work

Review provided documentation:

Schematics

PCB layout (Gerbers or CAD files)

Bill of materials (BOM)

Mechanical/enclosure details

Identify applicable standards and clauses

Perform a pre-compliance assessment including:

Creepage and clearance analysis

Isolation strategy (low voltage vs. mains)

Relay and component ratings vs. load conditions

Protection methods (fusing, surge, grounding)

Thermal and fire risk considerations

Provide a written report including:

Compliance gaps

Specific corrective actions

Recommendations for redesign (if required)

Deliverables

Written pre-compliance report

Annotated schematics and/or layout comments

Actionable recommendations prioritized by risk and certification impact

Nice to Have

Prior experience working at or directly with:

Underwriters Laboratories

CSA Group

Experience with industrial control equipment or panel-mounted devices

Familiarity with NFPA (NEC / NFPA 70) considerations

Engagement Details

Remote work

NDA required prior to document sharing

Estimated duration: 1–3 weeks (depending on depth of review)

Potential follow-on work for design iteration and certification preparation

Required Qualifications

Professional Engineer (PE) license (U.S. preferred)

Direct, hands-on experience with electrical product safety standards

Demonstrated experience successfully taking at least one product through UL or Intertek (ETL) certification

Strong working knowledge of applicable UL / IEC standards (e.g., UL 508, UL 61010, UL 62368)

Experience performing pre-compliance design reviews (schematic + PCB + enclosure)

To Apply

Please include:

Summary of relevant compliance experience

List of standards you have worked with

Example(s) of products you have helped bring through UL/ETL certification

Any prior NRTL experience