Circuit Breaker 5650103 - Equivalent & Substitute Parts

Part Overview

The Phoenix Contact 5650103 is a thermal magnetic circuit breaker rated for 300mA at 250V AC and 80V DC, designed for DIN rail mounting with push-to-reset actuation. This single-pole breaker is part of the TMC42 series and maintains active product status with RoHS compliance. Alternative equivalent parts may be required due to supply chain considerations, regional availability, or specific procurement requirements while maintaining identical electrical and mechanical specifications.

Substiute Parts

5650103

Phoenix ContactIn Stock: 9685650103 Datasheet

Current PartRFQ

7940102288

WeidmüllerIn Stock: 7877940102288 Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the Phoenix Contact 5650103 is determined by strict equivalence across the following critical parameters:

• Current Rating: 300mA (exact match required)
• Voltage Rating AC: 250V (exact match required)
• Voltage Rating DC: 80V (exact match required)
• Breaker Type: Thermal Magnetic (exact match required)
• Mounting Type: DIN Rail (exact match required)
• Number of Poles: 1 (exact match required)
• Actuator Type: Push to Reset (exact match required)
• RoHS Compliance: Required

The Weidmüller 7940102288 meets all substitution criteria as a parametric equivalent, sharing identical electrical ratings, mechanical form factor, and compliance certifications.

Parameter Comparison

Engineering Selection Recommendations

Both the Phoenix Contact 5650103 and Weidmüller 7940102288 are active products with RoHS compliance. The Weidmüller part carries additional approval certifications (CSA C22.2 No 235, UL1077, VDE) and REACH unaffected status. Selection between these equivalents should be based on procurement availability, regional certification requirements, and supply chain logistics. Both parts are suitable for direct substitution in applications requiring 300mA thermal magnetic circuit protection at 250V AC / 80V DC on DIN rail installations.

Frequently Asked Questions (FAQ)

Q: Can the Weidmüller 7940102288 directly replace the Phoenix Contact 5650103?

A: Yes. Both parts share identical electrical ratings (300mA, 250V AC, 80V DC), breaker type (thermal magnetic), mounting configuration (DIN rail), pole count (1), and actuation method (push to reset). Both are RoHS compliant and active products.

Q: What parameters must match for a valid substitution?

A: Current rating, AC voltage rating, DC voltage rating, breaker type, mounting type, number of poles, actuator type, and RoHS compliance status must all match exactly. Any deviation in these parameters disqualifies a part as an equivalent substitute.

Q: Are there differences in certifications between these parts?

A: The Weidmüller 7940102288 includes CSA C22.2 No 235, UL1077, and VDE certifications, while the Phoenix Contact 5650103 specifications do not list these. The Weidmüller part also carries REACH unaffected status. Verify certification requirements for your specific application before selection.

Q: What is the inventory status for these parts?

A: Phoenix Contact 5650103 has 862 pieces in stock. Weidmüller 7940102288 has 753 pieces in stock. Both are available as new original components in bulk packaging.

Q: Can these parts be used interchangeably in existing installations?

A: Yes, provided the installation uses standard DIN rail mounting and does not depend on series-specific form factors or connector interfaces. Both parts are mechanically and electrically equivalent for the specified application parameters.