P1MBUH3PD30 Lovato MCB 3P D30 480Y/277V 10kA UL489

P1MBUH3PD30 Lovato MCB 3P D30 480Y/277V 10kA UL489

Lovato P1MBUH3PD30 is a three-pole 30 A D-curve miniature circuit breaker with a 480Y/277 V AC UL operational voltage rating and 10 kA short-circuit rating for industrial branch-circuit protection.

SKU: P1MBUH3PD30
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Why Choose the Lovato P1MBUH3PD30 Miniature Circuit Breaker?

The Lovato P1MBUH3PD30 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 P1 MB miniature circuit breaker range, it combines a 30 A rated current with a D tripping curve for circuits supplying equipment with comparatively high starting or inrush currents.

Designed for applications requiring UL 489 branch-circuit protection while also complying with IEC requirements, the P1MBUH3PD30 provides dependable circuit protection in a compact modular format. Its three-pole configuration enables coordinated protection of three conductors, making it well suited to machinery, automation panels and industrial electrical distribution systems.

With a 30 A rated current, three-pole configuration, 480Y/277 V AC UL rated operational voltage and 10 kA short-circuit rating, the P1MBUH3PD30 delivers effective protection while occupying only three DIN modules inside an electrical enclosure.

Key Advantages

  • Reliable three-pole miniature circuit breaker for branch-circuit protection.
  • 30 A rated current for industrial and commercial circuits.
  • D tripping curve suited to equipment with relatively high starting or inrush currents.
  • 480Y/277 V AC UL operational voltage rating for compatible electrical systems.
  • 10 kA short-circuit rating under both IEC and UL specifications.
  • Compliant with IEC and UL 489 requirements.
  • Compact three-module DIN rail format for efficient panel installation.

Key Features

  • Lovato P1 MB miniature circuit breaker series.
  • Three-pole (3P) configuration.
  • 30 A rated current.
  • D tripping characteristic.
  • 480Y/277 V AC rated operational voltage under UL.
  • 230/400 V AC rated operational voltage under IEC.
  • 10 kA short-circuit rating.
  • 50/60 Hz rated frequency.
  • 4 kV rated impulse withstand voltage.
  • 35 mm DIN rail mounting.
  • IP20 frontal protection rating.
  • Three DIN modules wide for compact panel installation.

Reliable Protection for High-Inrush Industrial Circuits

Miniature circuit breakers such as the Lovato P1MBUH3PD30 automatically interrupt electrical circuits when overload or short-circuit conditions occur. This helps protect conductors and connected equipment against damaging overcurrents while providing a convenient means of isolating the protected circuit.

The D-curve characteristic makes the P1MBUH3PD30 particularly suitable for selected applications where connected equipment can produce substantial temporary inrush currents during energisation. Its three-pole construction, 30 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-phase 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 P1 MB
Model P1MBUH3PD30
Product type Miniature circuit breaker (MCB)
Number of poles 3P
Number of DIN modules 3
Rated current 30 A
Tripping characteristic D curve
Rated operational voltage (UL) 480Y/277 V AC
Rated operational voltage (IEC) 230/400 V AC
Rated insulation voltage 440 V
Rated impulse withstand voltage 4 kV
Rated frequency 50/60 Hz
Short-circuit rating (UL) 10 kA
Short-circuit rating (IEC) 10 kA
Electrical life 10,000 cycles
Mechanical life 20,000 cycles
Maximum power dissipation per pole 2.46 W
Operating temperature -40 to +70 °C
Storage temperature -40 to +80 °C
Maximum altitude 2,000 m
Conductor capacity 1–35 mm²
Terminal tightening torque 1.8–2 Nm
Mounting 35 mm DIN rail
Normal operating position Vertical plane
Frontal protection rating IP20
Pollution degree 2
Compliance IEC / UL 489
Weight 388 g
EAN 8013975221327

Frequently Asked Questions

What is the Lovato P1MBUH3PD30 used for?

The P1MBUH3PD30 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 P1MBUH3PD30?

The Lovato P1MBUH3PD30 has a rated current of 30 A.

What tripping curve does the P1MBUH3PD30 use?

The P1MBUH3PD30 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 P1MBUH3PD30 rated for?

The P1MBUH3PD30 is rated for 480Y/277 V AC under UL and 230/400 V AC under IEC.

What is the short-circuit rating of the P1MBUH3PD30?

The breaker has a 10 kA short-circuit rating under both UL and IEC specifications.

Does the Lovato P1MBUH3PD30 comply with UL 489?

Yes. The P1MBUH3PD30 complies with UL 489 requirements and is designed for branch-circuit protection applications.

How is the P1MBUH3PD30 installed?

The breaker mounts on a standard 35 mm DIN rail, occupies three DIN modules and is normally installed in a vertical plane inside an electrical enclosure.

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.