Phoenix Contact 0912018 Circuit Breaker - Equivalent & Substitute Parts

Part Overview

The Phoenix Contact 0912018 is a solid-state circuit breaker rated for 2A at 24VDC, designed for push-push actuator operation in holder-mounted applications. This component is classified as obsolete, making identification of functionally equivalent alternatives necessary for ongoing system maintenance and new design implementations. The part remains in stock inventory (834 units available) and maintains ROHS3 compliance and REACH affected status.

Substiute Parts

0912018

Phoenix ContactIn Stock: 9020912018 Datasheet

Current PartRFQ

2909909

Phoenix ContactIn Stock: 10042909909 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for solid-state circuit breakers is determined by the following critical parameters:

• Voltage Rating (DC): Must match or exceed the 24VDC requirement
• Breaker Type: Must be solid-state technology
• Number of Poles: Must be single-pole (1P) configuration
• Current Rating: Must accommodate the 2A load requirement

The substitute part Phoenix Contact 2909909 meets the core electrical requirements (24VDC, solid-state, 1-pole) with a higher current rating of 3A, providing operational compatibility. However, differences in mounting type (DIN Rail vs. Holder) and actuator type (Lever vs. Push-Push) represent mechanical and form-factor variations that require system-level assessment.

Parameter Comparison

Engineering Selection Recommendations

The Phoenix Contact 2909909 provides electrical equivalence to the 0912018 across voltage, current capacity, and solid-state technology. Both components maintain identical regulatory compliance (ROHS3, REACH Affected). The 2909909 carries active product status, ensuring continued availability and support compared to the obsolete 0912018.

Mechanical compatibility requires evaluation of the specific installation environment. The transition from holder-mounted push-push actuation to DIN rail-mounted lever actuation necessitates mechanical redesign of the mounting interface and operator control mechanism. The higher current rating (3A vs. 2A) provides additional margin for the protected circuit.

Frequently Asked Questions (FAQ)

Q: Can the 2909909 directly replace the 0912018 without modification?

A: Electrical substitution is valid based on matching voltage (24VDC), breaker type (solid-state), and pole configuration (1P). Mechanical substitution requires system redesign due to different mounting types (DIN Rail vs. Holder) and actuator interfaces (Lever vs. Push-Push).

Q: Why is the substitute part rated for 3A when the original is 2A?

A: The 3A rating of the 2909909 exceeds the 2A requirement of the 0912018, providing operational compatibility. The circuit breaker will protect a 2A load within its rated capacity.

Q: Are both parts compliant with current regulations?

A: Both the 0912018 and 2909909 are ROHS3 compliant and REACH affected, meeting current environmental and safety standards.

Q: What is the significance of the product status difference?

A: The 0912018 is classified as obsolete, indicating discontinued manufacturing. The 2909909 maintains active status, ensuring ongoing availability, technical support, and supply chain reliability for new designs and system maintenance.

Q: How do packaging differences affect selection?

A: The 0912018 is supplied without specified packaging, while the 2909909 is packaged in boxes. Packaging affects logistics, storage, and handling but does not impact electrical or mechanical performance in the installed application.