NP-1 Power Supply Guide for Motorized Latch Retraction

The NP-1 Power Supply (specifically the AHT NP-1 by Advanced Hardware Technologies) is a specialized 24V regulated linear power supply designed for commercial door security systems. It is primarily used to power motorized electric latch retraction devices like the AHT MEL-1. Accesshardware Aht-Tech

Product Overview

Core Function: It provides the high-current surge necessary for retracting heavy-duty door latches while maintaining a steady holding current once the door is open. Accesshardware
Technical Specs: It features a 3.2A output at 24VDC, solid-state design for durability, and constant communication monitoring between the power supply and the latch device to prevent hardware failure. Panicparts
Key Application: Essential for fail-secure commercial entryways where motorized latch retraction is required for access control integration. Arcadiainc

Market Trends & Insights (2025–2026)

Industrial Growth: The industrial power supply market is projected to reach $10.66 billion in 2026, growing at a 7.9% CAGR due to increased automation in commercial security and smart building infrastructure. Researchandmarkets Maximizemarketresearch
Technology Shift: While switch-mode power supplies (SMPS) are dominating the general market due to efficiency, linear power supplies like the NP-1 remain the "gold standard" for security hardware due to their low noise and high reliability in surge-heavy environments. Coherentmarketinsights
User Pain Points: Installers frequently report that system failures are often tied to wiring gauge issues (distances exceeding 200ft) or the need for periodic battery backup replacement, which is critical for maintaining security during power outages. Youtube Panicparts