Weidmüller 9929820000 Circuit Breaker - Equivalent & Substitute Parts

Part Overview

The Weidmüller 9929820000 is a single-pole circuit breaker with magnetic hydraulic delay protection, rated for 13A at 277V AC and 50V DC operation. This component is classified as obsolete, making identification of functionally equivalent substitute parts essential for system maintenance and component replacement in existing installations.

The obsolete status necessitates sourcing alternative components that maintain electrical and mechanical compatibility with the original specification while meeting current availability and compliance requirements.

Substiute Parts

9929820000

WeidmüllerIn Stock: 11449929820000 Datasheet

Current PartRFQ

2480120000

WeidmüllerIn Stock: 7482480120000 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the Weidmüller 9929820000 is determined by the following critical parameters:

• Current Rating: 13A (exact match required)
• Voltage Rating - AC: 277V (exact match required)
• Voltage Rating - DC: Minimum 50V (equal or higher acceptable)
• Mounting Type: DIN Rail (exact match required)
• Number of Poles: 1 (exact match required)
• Actuator Type: Lever (exact match required)

The substitute part 2480120000 meets these criteria with a DC voltage rating of 60V, which exceeds the minimum 50V requirement. The transition from magnetic hydraulic delay to thermal magnetic protection represents a functional upgrade in trip characteristic technology while maintaining the same current and AC voltage ratings.

Parameter Comparison

Engineering Selection Recommendations

The Weidmüller 2480120000 (MCB 1077 series) is the designated substitute for the obsolete 9929820000. This selection is based on:

• Identical current and AC voltage ratings (13A, 277V)
• Enhanced DC voltage rating (60V vs. 50V), providing additional operational margin
• Active product status with current manufacturing and availability
• Compliance certifications including CE, CSA C22.2 No 5, CSA C22.2 No 235, TUV, UL1077, and VDE
• RoHS compliance status
• Identical mechanical interface (DIN Rail mounting, single-pole, lever actuator)

The transition from magnetic hydraulic delay to thermal magnetic protection represents a modern protection technology upgrade suitable for direct replacement in the specified electrical environment.

Frequently Asked Questions (FAQ)

Q: Can the 2480120000 directly replace the 9929820000 in existing installations?

A: Yes. Both components share identical current ratings (13A), AC voltage ratings (277V), mounting type (DIN Rail), pole configuration (1P), and actuator type (Lever). The substitute has a higher DC voltage rating (60V vs. 50V), which is compatible with the original specification.

Q: What is the difference between magnetic hydraulic delay and thermal magnetic protection?

A: Magnetic hydraulic delay uses a hydraulic mechanism for time-delayed response to overloads. Thermal magnetic protection combines a thermal element for overload detection with a magnetic element for short-circuit protection. Both provide circuit protection; thermal magnetic represents current protection technology.

Q: Is the 2480120000 available in the same packaging as the original?

A: The 2480120000 is supplied in bulk packaging. Packaging configuration should be verified against procurement requirements for your application.

Q: Are there compliance differences between the two parts?

A: The original 9929820000 lists REACH Unaffected status. The substitute 2480120000 is RoHS Compliant and carries multiple international certifications (CE, CSA, TUV, UL1077, VDE), reflecting current regulatory standards.

Q: What is the inventory status for the substitute part?

A: The 2480120000 has 642 pieces in new original stock, providing immediate availability for replacement requirements.