Equivalent & Substitute Parts for IUG6-1-66-5.00-C-91

Part Overview

The IUG6-1-66-5.00-C-91 is a single-pole circuit breaker with magnetic hydraulic delay protection, rated for 30A at 250V AC and 80V DC. This component is designed for panel mount applications with lever actuation and is currently in active production status. Alternative equivalent parts become necessary when the primary part number is unavailable or when design requirements call for different series designations while maintaining identical electrical and mechanical performance characteristics.

Substiute Parts

IUG6-1-66-5.00-C-91

Sensata-AirpaxIn Stock: 852IUG6-1-66-5.00-C-91 Datasheet

Current PartRFQ

CEGF6-1-52-30.0-01-V

Sensata-AirpaxIn Stock: 1104CEGF6-1-52-30.0-01-V Datasheet

Parametric EquivalentRFQ

IEG6-1-72-30.0-91-V

Sensata-AirpaxIn Stock: 697IEG6-1-72-30.0-91-V Datasheet

Parametric EquivalentRFQ

IELK1-1-72-30.0-91-V

Sensata Technologies – AirpaxIn Stock: 953IELK1-1-72-30.0-91-V Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the IUG6-1-66-5.00-C-91 is determined by strict equivalence across the following parameters:

• Breaker Type: Magnetic (Hydraulic Delay)
• Current Rating: 30A
• Voltage Rating - AC: 250V
• Voltage Rating - DC: 80V
• Mounting Type: Panel Mount
• Actuator Type: Lever
• Number of Poles: 1
• RoHS Compliance: RoHS Compliant
• Moisture Sensitivity Level: 1 (Unlimited)

All three substitute parts listed below match these criteria exactly. Substitution is valid across series designations (IUG, CEG, IEG, IEL) when these parameters remain constant.

Parameter Comparison

Engineering Selection Recommendations

All three substitute parts are functionally equivalent to the IUG6-1-66-5.00-C-91 based on electrical and mechanical parameters. Selection among these alternatives should be based on the following factors:

Approval Agency Certifications:

• CEGF6-1-52-30.0-01-V: UL489A certified
• IEG6-1-72-30.0-91-V: CSA, TUV, UL1077 certified
• IELK1-1-72-30.0-91-V: UL1077 certified

Inventory Availability:

• IUG6-1-66-5.00-C-91: 822 pcs
• CEGF6-1-52-30.0-01-V: 1037 pcs
• IEG6-1-72-30.0-91-V: 683 pcs
• IELK1-1-72-30.0-91-V: 868 pcs

Choose the substitute part that aligns with your application's certification requirements and supply chain constraints.

Frequently Asked Questions (FAQ)

Q: Can CEGF6-1-52-30.0-01-V be used as a direct replacement for IUG6-1-66-5.00-C-91?

A: Yes. Both parts share identical electrical ratings (30A, 250V AC, 80V DC), breaker type (Magnetic Hydraulic Delay), mounting configuration (Panel Mount, Lever actuated, single pole), and compliance status (RoHS Compliant, MSL 1). The difference in series designation does not affect functional equivalence.

Q: What is the significance of different series designations (IUG, CEG, IEG, IEL)?

A: Series designations identify different product lines within the Sensata-Airpax portfolio. However, when all electrical and mechanical parameters are identical, parts remain functionally interchangeable regardless of series.

Q: Are there any differences in approval certifications among the substitute parts?

A: Yes. CEGF6-1-52-30.0-01-V carries UL489A certification, IEG6-1-72-30.0-91-V carries CSA, TUV, and UL1077 certifications, and IELK1-1-72-30.0-91-V carries UL1077 certification. Select the part whose certifications match your application requirements.

Q: Does packaging affect substitution eligibility?

A: All parts listed are supplied in bulk packaging. Packaging format does not affect electrical or mechanical compatibility.

Q: Can I substitute these parts in existing designs without circuit modification?

A: Yes. All substitute parts maintain identical electrical characteristics (current rating, voltage rating, breaker type) and mechanical form factor (panel mount, lever actuation, single pole). No circuit modifications are required.