P1MBUH1PD08 Lovato MCB 1P D8 277V 10kA UL489

P1MBUH1PD08 Lovato MCB 1P D8 277V 10kA UL489

Lovato P1MBUH1PD08 is a single-pole 8 A Curve D UL489 miniature circuit breaker rated at 277 V AC with a 10 kA short-circuit breaking capacity for industrial branch-circuit protection.

SKU: P1MBUH1PD08
Price
List Price £58.22 ex VAT
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Why Choose the Lovato P1MBUH1PD08 Miniature Circuit Breaker?

The Lovato P1MBUH1PD08 is a compact single-pole miniature circuit breaker (MCB) designed for reliable branch-circuit protection in industrial electrical panels, machinery and automation systems. Part of the Lovato P1MBUH UL489 series, this model combines an 8 A rated current with a Curve D tripping characteristic for circuits where higher starting or inrush currents may occur.

Rated for 277 V AC, the P1MBUH1PD08 provides a 10 kA short-circuit breaking capacity and complies with UL489. Its thermal-magnetic operating principle protects against both sustained overloads and short-circuit faults, while the Curve D characteristic makes it particularly suitable for industrial loads with significant momentary inrush currents.

The breaker occupies only one modular space and is designed for installation on a standard DIN rail. It accepts connecting conductors from 1 to 35 mm², provides IP20 protection and offers a mechanical endurance of 20,000 cycles, supporting dependable operation in professional electrical installations.

Key Advantages

  • 8 A single-pole miniature circuit breaker for branch-circuit protection.
  • UL489 compliant for suitable industrial branch-circuit applications.
  • Curve D tripping characteristic for loads with higher starting and inrush currents.
  • 277 V AC rated voltage.
  • 10 kA short-circuit breaking capacity.
  • Wide 1–35 mm² conductor connection range.
  • Compact single-module DIN rail design with IP20 protection.

Key Features

  • Lovato P1MBUH UL489 miniature circuit breaker series.
  • Single-pole (1P) configuration.
  • 8 A rated current.
  • Curve D tripping characteristic.
  • 277 V AC rated voltage.
  • 60 V DC capability within the P1MBUH single-pole range.
  • 10 kA short-circuit breaking capacity.
  • IP20 protection rating.
  • 20,000-cycle mechanical endurance.
  • Designed for DIN rail mounting.

Reliable UL489 Protection for High-Inrush Loads

Miniature circuit breakers automatically disconnect a circuit when excessive current threatens conductors or connected equipment. The Lovato P1MBUH1PD08 combines thermal overload protection with rapid magnetic short-circuit protection, providing dependable protection against common overcurrent fault conditions.

Its Curve D characteristic is particularly useful where normal equipment operation can produce substantial temporary starting currents. Combined with its 8 A rating, 277 V AC capability, 10 kA breaking capacity and UL489 compliance, the P1MBUH1PD08 provides a robust solution for demanding industrial branch circuits.

Typical Applications

  • UL489 industrial branch-circuit protection.
  • Industrial electrical control panels.
  • Machine and automation systems.
  • Circuits with high momentary inrush currents.
  • Industrial power distribution boards.
  • DIN rail-mounted electrical protection assemblies.

Technical Specifications

Phase Single Phase
HS Code 85362010
Manufacturer Lovato
Series P1MBUH
Model P1MBUH1PD08
Product type Miniature circuit breaker (MCB)
Protection principle Thermal-magnetic
Number of poles 1P
Number of protected poles 1
Number of modular spaces 1
Rated current In 8 A
Tripping characteristic Curve D
Rated voltage 277 V AC
DC voltage 60 V DC
Short-circuit breaking capacity 10 kA
Rated impulse withstand voltage Uimp 4 kV
Rated frequency 50/60 Hz
Protection rating IP20
Pollution degree 2
Overvoltage category III
Connecting conductor section 1–35 mm²
Mechanical endurance 20,000 cycles
Operating temperature -40 to +70 °C
Storage temperature up to +80 °C
Built-in depth 66 mm
Mounting DIN rail
Standard UL489
EAN 8013975220559
Weight approx. 133 g
Poles 1-pole
Device Type MCB
Trip Curve D curve
Breaking Capacity 10 kA

Frequently Asked Questions

What is the Lovato P1MBUH1PD08 used for?

The P1MBUH1PD08 is a single-pole UL489 miniature circuit breaker designed to protect industrial branch circuits against overload and short-circuit conditions.

What is the current rating of the P1MBUH1PD08?

The Lovato P1MBUH1PD08 has a rated current of 8 A.

What tripping characteristic does the P1MBUH1PD08 use?

The breaker uses a Curve D tripping characteristic, providing increased tolerance for temporary starting and inrush currents compared with lower instantaneous-trip curves.

What are the voltage and short-circuit ratings of the P1MBUH1PD08?

The P1MBUH1PD08 is rated at 277 V AC and provides a 10 kA short-circuit breaking capacity.

Is the Lovato P1MBUH1PD08 UL489 compliant?

Yes. The P1MBUH1PD08 is a UL489 miniature circuit breaker intended for appropriate branch-circuit protection applications.

Trusted Circuit Protection from Lovato

Lovato P1MBUH miniature circuit breakers provide panel builders, machine manufacturers and automation engineers with compact, robust and standards-compliant protection for industrial branch circuits and low-voltage electrical systems.

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