104-PR3-5A Thermal Circuit Breaker - Equivalent & Substitute Parts

Part Overview

The 104-PR3-5A is a thermal circuit breaker manufactured by E-T-A, rated for 5A at 240V AC and 48V DC with push-to-reset actuation. This single-pole through-hole component is designed for overcurrent protection in industrial and commercial applications. The part maintains Active product status with full compliance to international safety standards including CE, CSA C22.2 No 235, GB 17701, IEC 60934, and UL1077. Substitute parts are identified when electrical and mechanical parameters remain identical across the specified ratings and certifications.

Substiute Parts

104-PR3-5A

E-T-AIn Stock: 1205104-PR3-5A Datasheet

Current PartRFQ

104-PR-5A

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

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

The 104-PR-5A qualifies as a parametric equivalent to the 104-PR3-5A based on identical electrical and mechanical specifications. Substitution is valid when the following criteria are met:

• Current Rating: 5A (exact match)
• Voltage Rating - AC: 240V (exact match)
• Voltage Rating - DC: 48V (exact match)
• Breaker Type: Thermal (exact match)
• Actuator Type: Push to Reset (exact match)
• Number of Poles: 1 (exact match)
• Mounting Type: Through Hole (exact match)
• Series: 104 (same manufacturer series)
• Approval Agencies: CE, CSA C22.2 No 235, GB 17701, IEC 60934, UL1077 (identical certifications)
• RoHS Status: ROHS3 Compliant (identical compliance)

Parameter Comparison

Engineering Selection Recommendations

Both the 104-PR3-5A and 104-PR-5A maintain Active product status with identical regulatory compliance across all specified approval agencies. Selection between these parts is based on availability and inventory considerations rather than electrical or mechanical differentiation. The 104-PR3-5A currently maintains 1106 pieces in stock, while the 104-PR-5A maintains 1025 pieces. Both parts satisfy ROHS3 compliance requirements and carry identical certification credentials for industrial applications requiring thermal overcurrent protection at 5A, 240V AC, and 48V DC ratings.

Frequently Asked Questions (FAQ)

Q: Can the 104-PR-5A be used as a direct replacement for the 104-PR3-5A?

A: Yes. Both parts are identical in all electrical and mechanical parameters, including current rating, voltage ratings, breaker type, actuation method, pole configuration, and mounting type. Both carry identical regulatory certifications.

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

A: No. Both the 104-PR3-5A and 104-PR-5A carry identical approval agency certifications: CE, CSA C22.2 No 235, GB 17701, IEC 60934, and UL1077.

Q: What determines substitution eligibility for this circuit breaker?

A: Substitution is valid only when all electrical parameters (current rating, AC voltage, DC voltage) and mechanical parameters (breaker type, actuator type, pole count, mounting type) remain identical, and regulatory certifications are maintained.

Q: Are both parts RoHS compliant?

A: Yes. Both the 104-PR3-5A and 104-PR-5A are ROHS3 Compliant.

Q: What is the difference between the part numbers 104-PR3-5A and 104-PR-5A?

A: Both parts belong to the E-T-A 104 series and share identical electrical and mechanical specifications. The part number variation does not indicate functional differences in the parameters specified for this application.