Curtis Industries 03ERM1 AC Power Connector - Equivalent & Substitute Parts

Part Overview

The Curtis Industries 03ERM1 is an AC power entry connector receptacle designed for IEC 320-C14 panel mount applications. This component features male blades, filtered EMI/RFI protection for commercial use, and quick connect termination. The 03ERM1 operates at 3A current rating and 250VAC voltage rating with a rectangular panel cutout of 32.98mm x 23.11mm.

The 03ERM1 is classified as obsolete. Identifying equivalent substitute parts is necessary to maintain design continuity and ensure component availability for new production runs, repairs, and system upgrades where this connector type is specified.

Substiute Parts

03ERM1

Curtis IndustriesIn Stock: 101403ERM1 Datasheet

Current PartRFQ

F1399CA03

Curtis IndustriesIn Stock: 1177F1399CA03 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 03ERM1 is determined by strict alignment with the following electrical and mechanical parameters:

• Connector style and type (IEC 320-C14, Receptacle, Male Blades)
• Electrical ratings (3A current, 250VAC voltage, 3 positions)
• Filter specification (Filtered EMI/RFI - Commercial grade)
• Termination method (Quick Connect - 0.250")
• Mounting classification (Panel Mount)

The Curtis Industries F1399CA03 meets all substitution criteria. Both connectors share identical electrical specifications, filter characteristics, and termination standards. The primary difference is the mounting attachment method: the 03ERM1 uses a flange mount, while the F1399CA03 uses screw hole mounting. This distinction affects panel integration but does not alter electrical compatibility or functional performance within the IEC 320-C14 standard.

Parameter Comparison

Engineering Selection Recommendations

The F1399CA03 is the direct substitute for the obsolete 03ERM1. Both components maintain identical electrical performance and filtering characteristics required for IEC 320-C14 applications at 3A/250VAC.

The F1399CA03 offers additional advantages: it carries active product status, ensuring ongoing availability and supply chain stability. The F1399CA03 achieves ROHS3 compliance, meeting current environmental and regulatory standards, whereas the 03ERM1 is non-compliant. The F1399CA03 also provides expanded approval certifications (CE, CSA, TUV, UL) compared to the 03ERM1 (CSA, UL, VDE).

The primary design consideration is the mounting method transition from flange to screw hole. Panel cutout dimensions differ slightly (32.98mm x 23.11mm versus 30.50mm x 22.90mm), requiring panel modification or redesign to accommodate the F1399CA03. This mechanical change does not affect electrical functionality or connector performance.

Frequently Asked Questions (FAQ)

Q: Can the F1399CA03 directly replace the 03ERM1 without any modifications?

A: The F1399CA03 is electrically and functionally equivalent to the 03ERM1. However, the mounting method differs: the 03ERM1 uses flange mounting while the F1399CA03 uses screw hole mounting. Panel cutout dimensions also differ slightly. Physical panel modifications are required to accommodate the F1399CA03.

Q: Are the electrical ratings identical between the 03ERM1 and F1399CA03?

A: Yes. Both connectors operate at 3A current rating, 250VAC voltage rating, with 3 positions, IEC 320-C14 style, and identical quick connect termination (0.250"). Both include commercial-grade EMI/RFI filtering.

Q: What is the significance of the RoHS compliance difference?

A: The 03ERM1 is RoHS non-compliant while the F1399CA03 is ROHS3 compliant. For new designs and applications subject to environmental regulations, the F1399CA03 meets current compliance requirements. Existing systems using the 03ERM1 are not affected by this distinction.

Q: Does the panel cutout dimension difference affect compatibility?

A: The panel cutout dimensions differ: 03ERM1 requires 32.98mm x 23.11mm while F1399CA03 requires 30.50mm x 22.90mm. If retrofitting the F1399CA03 into an existing panel designed for the 03ERM1, the panel cutout must be modified or a new panel fabricated.

Q: What certifications does each connector carry?

A: The 03ERM1 carries CSA, UL, and VDE approvals. The F1399CA03 carries CE, CSA, TUV, and UL approvals. Both meet the regulatory requirements for their respective markets and applications.

Q: Why is the 03ERM1 classified as obsolete?

A: The 03ERM1 is no longer in active production. The F1399CA03 represents the current active product line from Curtis Industries for this connector category, offering improved compliance and expanded certifications.