Circuit Breaker Thermal 104-PR2-5A Equivalent & Substitute Parts

Part Overview

The E-T-A 104-PR2-5A is a thermal circuit breaker rated for 5A at 240V AC and 48V DC with push-to-reset actuation and through-hole mounting. This component is classified as Active product status with full compliance to international safety standards including CE, CSA C22.2 No 235, GB 17701, IEC 60934, and UL1077. Finding equivalent and substitute parts is necessary to ensure design flexibility, manage supply chain continuity, and maintain component availability across manufacturing cycles.

Substiute Parts

104-PR2-5A

E-T-AIn Stock: 826104-PR2-5A Datasheet

Current PartRFQ

104-PR-5A

E-T-AIn Stock: 1047104-PR-5A Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 104-PR2-5A is determined by strict equivalence across the following critical parameters:

• Current Rating: 5A (exact match required)
• Voltage Rating - AC: 240V (exact match required)
• Voltage Rating - DC: 48V (exact match required)
• Breaker Type: Thermal (exact match required)
• Actuator Type: Push to Reset (exact match required)
• Number of Poles: 1 (exact match required)
• Mounting Type: Through Hole (exact match required)
• Approval Agencies: CE, CSA C22.2 No 235, GB 17701, IEC 60934, UL1077 (all certifications must be present)
• RoHS Status: ROHS3 Compliant (exact match required)

The substitute part 104-PR-5A meets all these criteria and is therefore classified as a parametric equivalent within the E-T-A 104 series.

Parameter Comparison

Engineering Selection Recommendations

Both the 104-PR2-5A and 104-PR-5A are Active status components with identical electrical and mechanical specifications. Both parts carry full compliance to CE, CSA C22.2 No 235, GB 17701, IEC 60934, and UL1077 certifications, and both are ROHS3 compliant. Selection between these parts may be based on inventory availability and supply chain considerations, as they are functionally and electrically interchangeable for all applications requiring a 5A thermal circuit breaker with 240V AC and 48V DC ratings in through-hole configuration.

Frequently Asked Questions (FAQ)

Q: Can the 104-PR-5A be used as a direct replacement for the 104-PR2-5A?

A: Yes. Both parts are parametric equivalents with identical current ratings (5A), voltage ratings (240V AC, 48V DC), breaker type (thermal), actuator type (push to reset), mounting type (through hole), and regulatory certifications. They are electrically and mechanically interchangeable.

Q: Are there any differences in approval certifications between these parts?

A: No. Both the 104-PR2-5A and 104-PR-5A carry identical certifications: CE, CSA C22.2 No 235, GB 17701, IEC 60934, and UL1077. Both are ROHS3 compliant.

Q: What parameters must remain constant when selecting a substitute thermal circuit breaker?

A: Current rating, AC voltage rating, DC voltage rating, actuator type, number of poles, mounting type, and all regulatory certifications must match exactly. Any deviation in these parameters disqualifies a part as a substitute.

Q: Are both parts available in the same packaging?

A: Both parts are supplied in bulk packaging as standard.

Q: What is the difference between the 104-PR2-5A and 104-PR-5A part numbers?

A: Both parts belong to the E-T-A 104 series and share identical electrical and mechanical specifications. The part number variation reflects internal E-T-A product line designation but does not indicate functional differences.