Weidmüller MCB 489 2P 60A ACDC Circuit Breaker (2479010000)

Part Overview

The Weidmüller MCB 489 2P D 60A ACDC is a thermal magnetic circuit breaker designed for DIN rail mounting. This device provides overcurrent protection in AC and DC applications with a 60A current rating, 240V AC / 125V DC voltage capability, and lever-operated actuation. The part is currently active in production with full inventory availability (874 pcs in stock). Alternative models may be required due to application-specific requirements, regional availability, or design revisions within the same product series.

Substiute Parts

2479010000

WeidmüllerIn Stock: 8862479010000 Datasheet

Current PartRFQ

2478270000

WeidmüllerIn Stock: 7752478270000 Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

The Weidmüller MCB 489 series permits substitution based on the following electrical and mechanical parameters:

Substitution Criteria (All Must Match):

• Breaker Type: Thermal Magnetic
• Current Rating: 60A
• Voltage Rating - AC: 240V
• Voltage Rating - DC: 125V
• Number of Poles: 2
• Mounting Type: DIN Rail
• Actuator Type: Lever
• Series: MCB 489

Allowed Variation:

• Characteristic curve designation (D-curve vs. C-curve) may differ based on application requirements, as both variants maintain identical electrical ratings and mechanical compatibility within the MCB 489 series.

The substitute part 2478270000 meets all core electrical and mechanical parameters while utilizing a C-curve characteristic instead of the D-curve of the main part.

Parameter Comparison

Engineering Selection Recommendations

Both the main part (2479010000) and substitute part (2478270000) are active production components with identical regulatory compliance and certification status. Selection between these MCB 489 variants should be based on the required characteristic curve for the specific application:

• D-Curve (2479010000): Suitable for applications with moderate inrush currents and general-purpose circuit protection.
• C-Curve (2478270000): Suitable for applications with higher inrush currents or where delayed trip response is required.

Both parts maintain full compatibility with DIN rail mounting systems and are RoHS compliant with MSL 1 (unlimited moisture sensitivity level).

Frequently Asked Questions (FAQ)

Q: Can I substitute 2478270000 for 2479010000 in my application?

A: Substitution is permissible only if your application requirements support a C-curve characteristic instead of a D-curve. Both parts share identical electrical ratings (60A, 240V AC / 125V DC), mechanical mounting (DIN rail, 2-pole, lever actuation), and regulatory certifications. Verify that the characteristic curve change does not affect inrush current handling or trip response requirements for your circuit.

Q: What is the difference between D-curve and C-curve designations?

A: The characteristic curve determines the trip threshold and response time to overcurrent conditions. D-curve breakers trip at higher multiples of rated current with longer delay times, while C-curve breakers trip at lower multiples with shorter delay times. Selection depends on the specific load characteristics and protection requirements of your circuit.

Q: Are both parts available in the same packaging?

A: Both parts are supplied in bulk packaging and are available in active production status with confirmed inventory (2479010000: 874 pcs; 2478270000: 712 pcs).

Q: Do both parts carry the same regulatory approvals?

A: Yes. Both MCB 489 variants carry identical certifications: CE, CSA C22.2 No 5, CSA C22.2 No 235, TUV, UL489, and VDE.