YE602D180-01 TA6461 Mitsubishi Elevator Machine-Room-Less Top-Floor External Call Lock

Used in Mitsubishi machine-room-less elevator systems for top-floor external call panel locking and maintenance access control. This model is commonly associated with MRL base station lock structures and external call operation panels.

In some residential projects in Hungary and Qatar, this type of lock is still used in older Mitsubishi MRL systems where maintenance personnel need controlled access to the top-floor external call station.

The TA6461 key structure is usually matched with:

• YE602D180-01
• Mitsubishi LOP lock systems
• base station maintenance panels
• external call access assemblies

Common Use Situation

Normally installed in:

• machine-room-less elevators
• top-floor external call panels
• maintenance access positions
• LOP base station structures

The lock is mainly used to prevent unauthorized operation of maintenance-related external call areas.

Maintenance Market Notes

In export replacement markets, buyers sometimes order this model together with:

• TA6461 keys
• Mitsubishi COP/LOP locks
• external call panel assemblies

Some suppliers also describe it as:

• base station lock
• outbound call lock
• LOP lock assembly

Installation Attention

Before replacement:

• key type should be confirmed
• panel opening size should match
• lock direction should be checked carefully

In some older Mitsubishi systems, different lock generations may use similar-looking keys but different mounting structures.

Practical Service Situation

This is not a high-failure component, but in long-term operation environments technicians sometimes replace it because of:

• worn lock cylinders
• difficult key rotation
• damaged panel locks
• modernization upgrades

Usually used more in maintenance and management scenarios rather than daily passenger operation.