Curtis Industries 20ER11 Single Phase EMC/EMI Line Filter – Equivalent & Substitute Parts

Part Overview

The Curtis Industries 20ER11 is a single phase EMC/EMI line filter rated for 250VAC at 20A with 50/60Hz operation. This chassis mount filter features a two-stage configuration with quick connect termination, designed for general purpose applications requiring electromagnetic compatibility filtering.

The 20ER11 carries an obsolete product status. Locating equivalent substitute parts is necessary to maintain system compatibility and ensure continued availability for replacement or new installations requiring identical electrical and mechanical specifications.

Substiute Parts

20ER11

Curtis IndustriesIn Stock: 125720ER11 Datasheet

Current PartRFQ

F1399AA20

Curtis IndustriesIn Stock: 1228F1399AA20 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the 20ER11 is determined by strict equivalence across the following critical parameters:

• Filter Type: Single Phase
• Configuration: Two Stage
• Voltage Rating: 250VAC
• Current Rating: 20A
• Frequency: 50/60Hz
• Mounting Type: Chassis Mount
• Termination Style: Quick Connect

The Curtis Industries F1399AA20 meets all these criteria and is identified as a direct substitute. Both parts maintain identical electrical specifications and mechanical interface requirements, ensuring functional interchangeability in applications originally designed for the 20ER11.

Parameter Comparison

Engineering Selection Recommendations

The F1399AA20 is the direct equivalent substitute for the 20ER11. Both parts share identical electrical ratings and mechanical specifications, confirming functional interchangeability.

The F1399AA20 carries active product status, ensuring ongoing availability and supply chain continuity. This part also provides enhanced compliance posture with ROHS3 certification and expanded approval agency recognition (CE, CSA, TUV, UR), compared to the 20ER11's CSA, UR, and VDE certifications.

Selection of the F1399AA20 is appropriate for applications requiring the electrical and mechanical characteristics of the obsolete 20ER11, with the added benefit of current product support and improved regulatory compliance.

Frequently Asked Questions (FAQ)

Q: Can the F1399AA20 directly replace the 20ER11 in existing installations?

A: Yes. Both parts are rated for 250VAC at 20A with 50/60Hz operation, feature two-stage single phase filtering, and use chassis mount with quick connect termination. Electrical and mechanical specifications are identical, confirming direct substitution.

Q: What is the difference in product status between these parts?

A: The 20ER11 is obsolete, while the F1399AA20 is active. Active status ensures continued manufacturing, availability, and technical support from Curtis Industries.

Q: Are there compliance differences between the two parts?

A: The F1399AA20 holds ROHS3 compliance and CE certification in addition to CSA, TUV, and UR approvals. The 20ER11 is RoHS non-compliant and carries CSA, UR, and VDE certifications. For applications requiring RoHS3 compliance, the F1399AA20 is the appropriate choice.

Q: Does packaging differ between these parts?

A: The F1399AA20 is supplied in box packaging. Packaging specifications for the 20ER11 were not provided in the technical data.

Q: Are there any electrical performance differences?

A: No. Both parts maintain identical voltage ratings (250VAC), current capacity (20A), frequency range (50/60Hz), and filter configuration (two-stage single phase).