Phoenix Contact 0915474 Circuit Breaker Thermal Magnetic 7A - Equivalent & Substitute Parts

Part Overview

The Phoenix Contact 0915474 is a single-pole thermal magnetic circuit breaker rated for 7A, designed for DIN rail mounting in AC/DC applications. This component is classified as obsolete, making identification of functionally equivalent alternatives essential for system maintenance, repair, and new installations where original stock is unavailable.

Thermal magnetic circuit breakers provide combined thermal and magnetic protection, with the thermal element responding to sustained overcurrent and the magnetic element providing instantaneous protection against short circuits. The 7A rating and DIN rail form factor make this breaker suitable for industrial control and distribution applications.

Substiute Parts

0915474

Phoenix ContactIn Stock: 7690915474 Datasheet

Current PartRFQ

7940102180

WeidmüllerIn Stock: 8587940102180 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of thermal magnetic circuit breakers is determined by the following critical parameters:

• Current Rating (Amps): Must match exactly at 7A
• Breaker Type: Must be thermal magnetic to maintain protection characteristics
• Number of Poles: Must be single-pole (1P)
• Mounting Type: Must be DIN rail compatible
• Voltage Rating: AC and DC voltage ratings must meet or exceed the application requirements
• Actuator Type: Reset mechanism must be compatible with system operation
• Compliance & Certifications: RoHS compliance and relevant safety approvals ensure regulatory alignment

The Weidmüller 7940102180 satisfies all substitution criteria for the Phoenix Contact 0915474, providing equivalent thermal magnetic protection at the same 7A current rating with enhanced voltage specifications and active product status.

Parameter Comparison

Engineering Selection Recommendations

The Weidmüller 7940102180 is the qualified substitute for the obsolete Phoenix Contact 0915474. Selection is based on:

• Functional Equivalence: Both components are single-pole, 7A thermal magnetic circuit breakers with DIN rail mounting, ensuring identical protection characteristics and form factor compatibility.
• Regulatory Compliance: Both parts maintain RoHS compliance, satisfying environmental and hazardous substance restrictions.
• Active Product Status: The Weidmüller component is actively manufactured and stocked (817 pcs available), eliminating supply chain risk associated with the obsolete Phoenix Contact part.
• Certification Alignment: The Weidmüller part carries CSA C22.2 No 235, UL1077, and VDE approvals, providing recognized safety certifications for industrial applications.
• Voltage Specifications: The Weidmüller part specifies 250 V AC and 80 V DC ratings, providing defined electrical limits for system design verification.

Frequently Asked Questions (FAQ)

Q: Can the Weidmüller 7940102180 directly replace the Phoenix Contact 0915474 in existing installations?

A: Yes. Both components share identical current rating (7A), breaker type (thermal magnetic), pole configuration (1P), and mounting method (DIN rail). The Weidmüller part is a direct functional equivalent suitable for replacement in systems designed for the Phoenix Contact breaker.

Q: What are the voltage limitations of the Weidmüller substitute?

A: The Weidmüller 7940102180 is rated for 250 V AC and 80 V DC. System voltage must not exceed these ratings. If the original Phoenix Contact application operates above these voltage levels, voltage compatibility must be confirmed before substitution.

Q: Does the push-to-reset actuator on the Weidmüller part affect compatibility?

A: The push-to-reset actuator is a standard reset mechanism for thermal magnetic circuit breakers. It is compatible with typical DIN rail panel installations. If the original application requires a different reset mechanism, this must be evaluated during selection.

Q: Are there differences in thermal and magnetic trip characteristics between the two parts?

A: Trip characteristics are not specified in the provided technical parameters for either component. Detailed trip curves and response times must be obtained from manufacturer datasheets if precise thermal and magnetic response matching is required for the application.

Q: What is the significance of the CB4200 series designation on the Weidmüller part?

A: The CB4200 series identifies the Weidmüller product line for thermal magnetic circuit breakers. This designation indicates the component family and may be useful for cross-referencing additional documentation or related products within the series.

Q: Is the Weidmüller part available in different packaging options?

A: The Weidmüller 7940102180 is supplied in bulk packaging. For specific packaging requirements or alternative delivery formats, contact the supplier or manufacturer directly.