Master Lock Co 4401LHEC Bluetooth Padlock 56mm

Product Description

The MASTER LOCK CO 4401LHEC is a Bluetooth-enabled padlock designed for commercial and residential access control applications. The metal body measures 2-7/32 inches (56mm) wide, providing a durable housing for high-security deployments. The boron alloy shackle is 11/32 inches (9mm) in diameter with 2 inches (51mm) of vertical clearance, offering strong resistance to cutting and sawing attacks. The lock connects via Bluetooth to the Master Lock Vault platform, allowing administrators to manage access permissions through a companion app or web interface. Licensed locksmiths, security integrators, and facility managers typically specify and install this hardware.

The 4401LHEC is suited for commercial facilities, multi-family properties, job sites, and institutional settings where tracked, keyless access is required. The Vault platform supports individual lock assignments and system-wide access control, making it appropriate for fleets of locks across a single property or multiple locations. Administrators can grant or revoke access remotely, and the app logs entry events for accountability purposes. It is also applicable for high-security residential use where traditional keyed padlocks are being replaced with managed electronic access.

Key Features

• 56mm wide metal body construction for impact and weather resistance
• Boron alloy shackle with 11/32 inch diameter resists cutting and sawing
• 2 inches of vertical shackle clearance for standard hasp and gate hardware
• Bluetooth connectivity integrates with the Master Lock Vault app and web console
• Military-grade encryption protects against wireless interception and replay attacks
• Supports both individual user access and administrator-controlled system-wide lock management

Compatibility

The 4401LHEC is compatible with the Master Lock Vault access management system and is designed for use with the Master Lock Vault app and web interface for administrator and user access control.

Installation Notes

Installation is typically performed by a licensed locksmith or security integrator familiar with electronic access control hardware. Before servicing or enrolling the lock, ensure the associated Vault administrator account is active and that Bluetooth is enabled on the setup device. Follow NEC guidelines when this lock is used in conjunction with electrified access control systems. Do not force the shackle or attempt to modify the lock body, as this will void the security rating and may damage the internal electronics.

Technical Specifications

• Body Width: 2-7/32 inches (56mm)
• Shackle Diameter: 11/32 inches (9mm)
• Shackle Vertical Clearance: 2 inches (51mm)
• Shackle Material: Boron Alloy
• Body Material: Metal
• Connectivity: Bluetooth
• Package Weight: 24.91 pounds
• Unit of Measure: EA
• Package Quantity: 24

Standard Information

• Brand: MASTER LOCK CO
• Manufacturer Part Number: 4401LHEC