Equivalent & Substitute Parts for IUGH11-1-66F-20.0-21

Part Overview

The IUGH11-1-66F-20.0-21 is a circuit breaker with magnetic hydraulic delay protection manufactured by Sensata-Airpax. This 20A, 250V AC / 80V DC lever-actuated panel mount breaker is designed for electrical protection in industrial and commercial applications. The part is currently active in production with 1,105 units in stock. Equivalent and substitute parts are identified based on matching electrical ratings, mechanical configuration, and functional performance characteristics to ensure seamless integration in applications requiring this breaker specification.

Substiute Parts

IUGH11-1-66F-20.0-21

Sensata-AirpaxIn Stock: 1174IUGH11-1-66F-20.0-21 Datasheet

Current PartRFQ

IELHK11-1-72-20.0-01-V

Sensata-AirpaxIn Stock: 845IELHK11-1-72-20.0-01-V Datasheet

Parametric EquivalentRFQ

IUG66-1-61-30.0-C-01

Sensata-AirpaxIn Stock: 947IUG66-1-61-30.0-C-01 Datasheet

Parametric EquivalentRFQ

IEG11-1-62F-20.0-A-00

Sensata-AirpaxIn Stock: 866IEG11-1-62F-20.0-A-00 Datasheet

Parametric EquivalentRFQ

IEGH11-1-72-20.0-01-V

Sensata-AirpaxIn Stock: 959IEGH11-1-72-20.0-01-V Datasheet

Parametric EquivalentRFQ

IEGS66-1-61-20.0-A-41-V

Sensata Technologies – AirpaxIn Stock: 961IEGS66-1-61-20.0-A-41-V Datasheet

Parametric EquivalentRFQ

IUG66-1-61-10.0-CQ-01

Sensata-AirpaxIn Stock: 1004IUG66-1-61-10.0-CQ-01 Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the IUGH11-1-66F-20.0-21 are qualified based on the following electrical and mechanical parameters:

• Current Rating: 20A (exact match required)
• Voltage Rating AC: 250V (exact match required)
• Voltage Rating DC: 80V (exact match required)
• Breaker Type: Magnetic (Hydraulic Delay) (exact match required)
• Mounting Type: Panel Mount (exact match required)
• Actuator Type: Lever (exact match required)
• Number of Poles: 2 (exact match required)
• RoHS Compliance: RoHS Compliant (maintained across all substitutes)

All identified substitute parts maintain identical electrical performance and mechanical interface characteristics, enabling direct functional replacement in existing applications.

Parameter Comparison

Engineering Selection Recommendations

All substitute parts listed maintain active product status and RoHS compliance. Selection among equivalent parts should be based on the following factors:

Approval Certifications: Parts IEG11-1-62F-20.0-A-00, IEGH11-1-72-20.0-01-V, and IEGS66-1-61-20.0-A-41-V carry additional regulatory approvals (CSA, TUV, UL1077) beyond the base UL1077 certification, providing expanded compliance documentation for applications requiring multi-agency validation.

Packaging Configuration: IELHK11-1-72-20.0-01-V, IUG66-1-61-30.0-C-01, IEG11-1-62F-20.0-A-00, IEGH11-1-72-20.0-01-V, and IUG66-1-61-10.0-CQ-01 are supplied in bulk packaging. IEGS66-1-61-20.0-A-41-V is supplied without specified packaging designation.

Inventory Availability: All substitute parts maintain adequate stock levels ranging from 736 to 903 units, ensuring supply continuity for production requirements.

Frequently Asked Questions (FAQ)

Q: What determines if a part can substitute for the IUGH11-1-66F-20.0-21?

A: Substitution is based on exact matching of electrical ratings (20A current, 250V AC, 80V DC), breaker type (magnetic hydraulic delay), mounting configuration (panel mount), actuator type (lever), and pole count (2 poles). All substitute parts meet these criteria.

Q: Are there differences in regulatory approvals among the substitute parts?

A: Yes. IELHK11-1-72-20.0-01-V carries UL1077 approval. IEG11-1-62F-20.0-A-00, IEGH11-1-72-20.0-01-V, and IEGS66-1-61-20.0-A-41-V carry CSA, TUV, and UL1077 approvals. The remaining parts carry standard compliance without additional agency certifications listed. Application requirements should determine if expanded approvals are necessary.

Q: Do packaging differences affect functional compatibility?

A: No. Packaging differences (bulk versus standard) do not affect electrical or mechanical performance. Packaging selection should be based on procurement and inventory management requirements.

Q: Can these parts be used interchangeably in existing installations?

A: Yes. All substitute parts maintain identical electrical ratings, mechanical interfaces, and functional characteristics as the IUGH11-1-66F-20.0-21, enabling direct replacement without circuit modification.

Q: What is the moisture sensitivity level for these breakers?

A: All parts, including the main part and substitutes, have a Moisture Sensitivity Level (MSL) of 1 (Unlimited), indicating no moisture sensitivity restrictions for storage or handling.