P1MBUL3PD50 Lovato MCB 3P D50 240V 10kA UL489

P1MBUL3PD50 Lovato MCB 3P D50 240V 10kA UL489

Lovato P1MBUL3PD50 is a three-pole 50 A D-curve miniature circuit breaker with a 240 V AC UL operational voltage rating and 10 kA short-circuit rating for industrial branch-circuit protection.

SKU: P1MBUL3PD50
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Why Choose the Lovato P1MBUL3PD50 Miniature Circuit Breaker?

The Lovato P1MBUL3PD50 is a robust three-pole miniature circuit breaker (MCB) designed to provide reliable overload and short-circuit protection for industrial and commercial electrical circuits. As part of the Lovato P1MBUL UL 489 miniature circuit breaker range, it combines a 50 A rated current with D-curve tripping characteristics for circuits supplying equipment with relatively high starting or inrush currents.

Designed for applications requiring UL 489 branch-circuit protection, the P1MBUL3PD50 uses thermal-magnetic protection to respond to sustained overload conditions and high short-circuit currents. Its three-pole construction provides coordinated switching and protection across three conductors, making it suitable for machinery, automation panels and industrial electrical distribution systems.

With a 50 A rated current, three-pole configuration, 240 V AC UL rated operational voltage and 10 kA short-circuit rating, the P1MBUL3PD50 provides dependable protection in a compact DIN rail-mounted format.

Key Advantages

  • Reliable three-pole miniature circuit breaker for branch-circuit protection.
  • 50 A rated current for industrial and commercial electrical circuits.
  • D tripping curve suited to loads with relatively high starting or inrush currents.
  • 240 V AC UL operational voltage rating.
  • 10 kA short-circuit rating for dependable fault protection.
  • Thermal-magnetic operation provides overload and short-circuit protection.
  • UL 489 design for branch-circuit applications.

Key Features

  • Lovato P1MBUL miniature circuit breaker range.
  • Three-pole (3P) configuration.
  • 50 A rated current.
  • D tripping characteristic.
  • 240 V AC rated operational voltage under UL.
  • 10 kA short-circuit rating.
  • Thermal and magnetic circuit protection.
  • Simultaneous switching and protection across three poles.
  • Compact modular construction for electrical panels.
  • DIN rail mounting for straightforward installation.

Reliable Protection for High-Inrush Industrial Circuits

Miniature circuit breakers such as the Lovato P1MBUL3PD50 protect electrical conductors and connected equipment by automatically interrupting the circuit when overload or short-circuit conditions occur. Thermal protection responds to sustained overcurrents, while the magnetic trip mechanism provides rapid interruption during severe short-circuit faults.

The D-curve characteristic makes the P1MBUL3PD50 particularly suitable for selected applications where connected equipment can produce substantial temporary inrush currents during energisation. Its three-pole construction, 50 A rating and compact DIN rail format make it a practical protection solution for industrial machinery, automation equipment and electrical distribution assemblies.

Typical Applications

  • Three-pole industrial branch circuits.
  • Industrial machinery and automation equipment.
  • Circuits supplying loads with high starting or inrush currents.
  • Electrical control panels and distribution assemblies.
  • Commercial and industrial electrical systems.
  • OEM machinery requiring UL 489 branch-circuit protection.

Technical Specifications

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Certification UL 489
Phase Three Phase
Poles 3-pole
Device Type MCB
Trip Curve D curve
HS Code 85362010
Manufacturer Lovato Electric
Series P1MBUL
Model P1MBUL3PD50
Product type Miniature circuit breaker (MCB)
Number of poles 3
Rated current 50 A
Tripping characteristic D curve
Trip technology Thermal-magnetic
Rated operational voltage (UL) 240 V AC
Short-circuit rating 10 kA
Mounting type DIN rail mounting
Standard UL 489

Frequently Asked Questions

What is the Lovato P1MBUL3PD50 used for?

The P1MBUL3PD50 is a three-pole miniature circuit breaker designed to protect electrical circuits against overload and short-circuit conditions in industrial and commercial installations.

What is the rated current of the P1MBUL3PD50?

The Lovato P1MBUL3PD50 has a rated current of 50 A.

What tripping curve does the P1MBUL3PD50 use?

The P1MBUL3PD50 uses a D tripping curve, making it suitable for selected circuits supplying equipment with relatively high starting or inrush currents.

What voltage is the Lovato P1MBUL3PD50 rated for?

The P1MBUL3PD50 has a 240 V AC rated operational voltage under UL.

What is the short-circuit rating of the P1MBUL3PD50?

The P1MBUL3PD50 has a 10 kA short-circuit rating.

Does the Lovato P1MBUL3PD50 comply with UL 489?

Yes. The P1MBUL3PD50 is a UL 489 miniature circuit breaker designed for branch-circuit protection applications.

How is the P1MBUL3PD50 installed?

The P1MBUL3PD50 has a compact modular construction intended for DIN rail mounting inside electrical control panels and distribution equipment.

Trusted Circuit Protection from Lovato Electric

Lovato Electric miniature circuit breakers provide dependable protection for industrial automation, machinery and electrical distribution systems, giving panel builders and equipment manufacturers compact solutions for modern electrical installations.