Weidmüller 7940102180 Circuit Breaker - Equivalent & Substitute Parts

Part Overview

The Weidmüller 7940102180 is a single-pole thermal magnetic circuit breaker rated for 7A at 250V AC and 80V DC, designed for DIN rail mounting with push-to-reset actuation. This component is currently active in production with 817 units in stock. Circuit breakers of this specification are essential for overcurrent protection in industrial control systems, power distribution panels, and machinery applications where both AC and DC voltage protection is required. Equivalent substitute parts may be necessary due to supply chain considerations, regional availability, or system standardization requirements.

Substiute Parts

7940102180

WeidmüllerIn Stock: 8587940102180 Datasheet

Current PartRFQ

5650117

Phoenix ContactIn Stock: 9655650117 Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the Weidmüller 7940102180 is determined by strict equivalence across the following critical parameters:

• Current Rating: 7A (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)
• Actuator Type: Push to Reset (exact match required)
• Number of Poles: 1 (exact match required)

The Phoenix Contact 5650117 meets all substitution criteria as a parametric equivalent. Both components share identical electrical ratings, mechanical mounting specifications, and functional characteristics. Differences in series designation (CB4200 vs. TMC42) and compliance certifications reflect manufacturer-specific design implementations while maintaining functional equivalence.

Parameter Comparison

Engineering Selection Recommendations

Both the Weidmüller 7940102180 and Phoenix Contact 5650117 are active production components with current inventory availability. Selection between these parts should be based on:

• Supply chain requirements and regional sourcing preferences
• Existing system standardization on either Weidmüller or Phoenix Contact platforms
• Compliance certification alignment with end-application requirements (both meet CSA, UL, and VDE standards)
• RoHS compliance level requirements (Weidmüller: RoHS Compliant; Phoenix Contact: ROHS3 Compliant)

Both components satisfy identical electrical and mechanical specifications for 7A thermal magnetic circuit breaker applications on DIN rail systems.

Frequently Asked Questions (FAQ)

Q: Can the Phoenix Contact 5650117 directly replace the Weidmüller 7940102180 in existing installations?

A: Yes. Both components are parametrically equivalent across all critical specifications: 7A current rating, 250V AC / 80V DC voltage ratings, thermal magnetic operation, DIN rail mounting, and push-to-reset actuation. Physical form factor and electrical performance are interchangeable.

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

A: Both components meet international safety standards. The Weidmüller 7940102180 carries CSA C22.2 No 235, UL1077, and VDE certifications. The Phoenix Contact 5650117 carries equivalent certifications appropriate to its design. Verify specific certification requirements for your application jurisdiction.

Q: What is the difference between RoHS Compliant and ROHS3 Compliant?

A: ROHS3 represents the current revision of the RoHS Directive with updated substance restrictions. Both designations indicate compliance with hazardous substance reduction requirements. ROHS3 Compliant components meet the latest regulatory standards.

Q: Are both parts available in the same packaging format?

A: Yes. Both the Weidmüller 7940102180 and Phoenix Contact 5650117 are supplied in bulk packaging suitable for industrial procurement and integration into control systems.

Q: What determines whether a circuit breaker can substitute for another?

A: Substitution requires exact equivalence in current rating, AC/DC voltage ratings, breaker type (thermal magnetic), mounting method (DIN rail), actuator mechanism (push to reset), and pole configuration (single pole). Any deviation in these parameters disqualifies substitution.