Phoenix Contact 0902027 Circuit Breaker - Equivalent & Substitute Parts

Part Overview

The Phoenix Contact 0902027 is a thermal-magnetic circuit breaker rated at 1A with lever actuation, designed for DIN rail mounting. This component is classified as obsolete, making identification of suitable substitute parts essential for system maintenance and component replacement in existing installations.

The 0902027 belongs to the TMC series and provides overcurrent protection through combined thermal and magnetic trip mechanisms. Due to its obsolete status, the active equivalent 1019972 from the same manufacturer serves as the primary substitute for new procurement and system updates.

Substiute Parts

0902027

Phoenix ContactIn Stock: 9990902027 Datasheet

Current PartRFQ

1019972

Phoenix ContactIn Stock: 17711019972 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the Phoenix Contact 0902027 is determined by the following critical parameters:

• Current Rating: Must be 1A to maintain identical overcurrent protection characteristics
• Breaker Type: Must be thermal-magnetic to preserve trip response behavior
• Mounting Type: Must be DIN rail to ensure mechanical compatibility with existing installations
• Actuator Type: Must be lever-operated for consistent manual operation
• Number of Poles: Must be single-pole (1P) to match circuit protection configuration
• Regulatory Compliance: Must maintain ROHS3 compliance for environmental standards

The substitute part 1019972 satisfies all these criteria while offering the advantage of active product status and extended voltage ratings (277V AC / 60V DC), making it suitable for broader application scenarios.

Parameter Comparison

Engineering Selection Recommendations

The Phoenix Contact 1019972 is the direct substitute for the obsolete 0902027 based on the following factors:

Functional Equivalence: Both components share identical current rating (1A), breaker type (thermal-magnetic), mounting configuration (DIN rail), and actuation method (lever). This ensures drop-in replacement capability in existing circuit protection applications.

Regulatory Compliance: Both parts maintain ROHS3 compliance, satisfying environmental and hazardous substance restrictions. The 1019972 carries REACH Affected status, indicating full compliance with chemical substance regulations, whereas the 0902027 is REACH Unaffected due to its obsolete classification.

Product Status Advantage: The 1019972 holds active product status, ensuring continued availability, technical support, and supply chain reliability. This is critical for long-term system maintenance and future component procurement.

Voltage Rating Enhancement: While the 0902027 does not specify voltage ratings, the 1019972 provides explicit ratings of 277V AC and 60V DC, offering greater application flexibility and clearer specification documentation for system design.

Frequently Asked Questions (FAQ)

Q: Can the 1019972 directly replace the 0902027 in existing installations?

A: Yes. Both components are 1A thermal-magnetic circuit breakers with lever actuation on DIN rail mounting. The identical current rating and trip mechanism ensure functional equivalence. The 1019972 is mechanically and electrically compatible as a direct substitute.

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

A: The 0902027 is classified as obsolete, meaning Phoenix Contact no longer manufactures or supports this component. The 1019972 is active, ensuring ongoing availability, technical documentation, and supply chain support. For new installations or long-term system maintenance, the active substitute is recommended.

Q: Are there voltage rating differences between these parts?

A: The 0902027 does not specify voltage ratings in available documentation. The 1019972 is rated for 277V AC and 60V DC operation. When replacing the 0902027, verify that the application voltage does not exceed these ratings on the substitute part.

Q: Do both parts meet the same regulatory standards?

A: Both components are ROHS3 compliant. The 1019972 carries REACH Affected status, indicating full compliance with EU chemical substance regulations. The 0902027 is REACH Unaffected due to its obsolete status. For new procurement, the 1019972 provides complete regulatory documentation.

Q: What packaging is available for the substitute part?

A: The 1019972 is supplied in box packaging. Verify packaging requirements for your procurement process, as this may affect order quantities and handling procedures.