STR28D - Schneider Electric 3-Pole 600V Masterpact STR Series Circuit Breaker Trip Unit

STR28D

STR28D is a 3-pole electronic trip unit designed for Schneider Electric Masterpact circuit breakers, providing adjustable long-time, short-time, and instantaneous trip settings.

This STR28D trip unit operates at 600 volts AC and is compatible with M and MP frame Masterpact circuit breakers. It features advanced electronic protection functions including adjustable overload and short circuit settings, mechanical fault trip indicator with reset, and an LCD ammeter display for phase current monitoring. The unit supports precise current settings ranging from 800 to 6300 amperes and includes local and remote pre-trip alarms for enhanced protection. It is suitable for industrial and commercial power distribution applications requiring reliable and customizable circuit protection.

• Manufacturer: Schneider Electric
• Series: Masterpact STR
• Poles: 3
• Voltage Rating: 600 VAC
• Amperage Range: 800 to 6300 A (sensor dependent)
• Mounting Type: Compatible with Masterpact M and MP frames
• Trip Unit Type: Electronic adjustable long-time, short-time, instantaneous
• Features: Mechanical fault trip indicator with reset, LCD ammeter display, local and remote pre-trip alarms
• Application: Industrial and commercial power distribution

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Specifications

• Part Number: STR28D
• Manufacturer : Schneider Electric
• Brand : Merlin Gerin
• Category : Circuit Breaker
• Item Subcategory : Trip Units & Programmers
• Family : Masterpact
• Type : STR
• Voltage : 600
• Poles : 3
• Functions : LI - Long-Time and Instantaneous
• Amperage Maximum : 6300
• Amperage Minimum : 800
• Protection : Solid State
• Compatible Frames : M,MP

Product Data

• Weight : 10