P1MBUH2PD30 Lovato MCB 2P D30 480Y/277V 10kA UL489

Why Choose the Lovato P1MBUH2PD30 Miniature Circuit Breaker?

The Lovato P1MBUH2PD30 is a compact two-pole miniature circuit breaker (MCB) designed to provide thermal-magnetic overload and short-circuit protection in industrial electrical distribution and control systems. Part of the Lovato P1 MBUH range, it combines a 30 A rated current with Curve D tripping characteristics and UL489 compliance for dependable branch circuit protection.

Designed for 480Y/277 V AC systems, the P1MBUH2PD30 provides a 10 kA short-circuit rating for robust protection against electrical faults. Its two-pole configuration enables coordinated protection and disconnection across both poles, while the compact DIN rail format helps maximise available space within industrial control panels and machinery.

The Curve D tripping characteristic provides increased tolerance of high transient starting currents compared with more sensitive trip curves. This makes the P1MBUH2PD30 particularly suitable for compatible inductive and high-inrush loads such as transformers, power supplies, solenoids and industrial equipment where substantial starting currents can occur during normal operation.

Key Advantages

• Two-pole thermal-magnetic protection for industrial branch and equipment circuits.
• 30 A rated current for higher-current industrial loads and distribution circuits.
• Curve D tripping characteristic provides increased tolerance of high transient inrush currents.
• Designed for 480Y/277 V AC electrical systems.
• 10 kA short-circuit rating for robust fault-current protection.
• UL489 compliant for branch circuit protection in appropriately designed installations.

Key Features

• Lovato P1 MBUH miniature circuit breaker range.
• 2-pole configuration for coordinated circuit protection.
• 30 A rated current.
• Curve D thermal-magnetic tripping characteristic.
• 480Y/277 V AC system rating.
• 10 kA short-circuit rating.
• Suitable for 50/60 Hz electrical systems.
• Compact 2 DIN module construction.
• Front protection rating of IP20.
• Standard DIN rail mounting for straightforward integration into electrical panels.

Curve D Protection for High-Inrush Industrial Loads

The Lovato P1MBUH2PD30 uses a thermal-magnetic operating mechanism to protect electrical circuits against overload and short-circuit conditions. The thermal element responds to sustained excessive current, while the magnetic mechanism provides rapid interruption during severe fault conditions, helping protect wiring and connected equipment.

Its Curve D characteristic is particularly useful where normal equipment operation can produce substantial transient starting currents. Combined with its 30 A current rating, two-pole configuration, 480Y/277 V AC system rating and 10 kA short-circuit capability, the P1MBUH2PD30 provides a practical protection solution for demanding industrial branch circuits.

Typical Applications

• Industrial electrical control and distribution panels.
• UL489 branch circuit protection.
• 480Y/277 V AC industrial electrical systems.
• Industrial machinery and automation equipment.
• Compatible transformers, power supplies and inductive loads with high starting currents.
• OEM machinery and electrical distribution assemblies.