Introduction
This manual provides comprehensive instructions for the setup, operation, and maintenance of your Yale Electronic Alarmed Safe Large, model YEC/390/DB2. Please read this manual carefully before using your safe to ensure proper function and security.
The Yale Electronic Alarmed Safe is designed to provide a basic level of security for valuable items such as keys, passports, cash, and cards. It features a digital keypad for entry and a built-in alarm system for enhanced protection.

Image: Front view of the Yale Electronic Alarmed Safe Large, model YEC/390/DB2, showcasing its black finish and digital keypad with a mechanical key override.
Safety Information
- Do not store the mechanical override keys inside the safe. Keep them in a secure, separate location.
- Ensure the safe is securely mounted to a wall or floor to prevent unauthorized removal.
- Replace batteries promptly when the low battery indicator appears to avoid being locked out.
- Avoid exposing the safe to extreme temperatures or humidity.
- Keep the keypad clean and dry.
Package Contents
Before proceeding with installation, please verify that all components are present:
- 1 x Yale Electronic Alarmed Safe (YEC/390/DB2)
- 2 x Mechanical Override Keys
- 4 x AA Batteries (for initial use)
- 1 x Pack of Fixing Bolts (for securing the safe to a wall or floor)
- 1 x User Manual / Fitting Instructions (this document)

Image: Visual representation of the Yale safe package contents, including the safe, 4 AA batteries, 2 mechanical keys, and fixing bolts.
Setup
1. Battery Installation
- Open the safe door using one of the mechanical override keys. Insert the key into the lock, turn it, and open the door.
- Locate the battery compartment on the inside of the safe door.
- Insert the 4 AA batteries provided, ensuring correct polarity (+/-).
- Close the battery compartment cover.
- The safe is now powered and ready for initial programming.
2. Setting Your Personal Identification Number (PIN)
The safe requires a 3 to 8 digit PIN code for electronic access.
- With the safe door open, press the red reset button located on the inside of the safe door (usually near the hinge or battery compartment). You will hear a beep.
- Within 5 seconds, enter your desired 3 to 8 digit PIN code on the keypad.
- Press the '#' button to confirm. You will hear a confirmation beep.
- Test your new PIN with the door open before closing it. Enter your PIN, then press '#'. The locking bolts should retract.
Important: Remember your PIN code. If forgotten, you will need to use the mechanical override key.
3. Mounting the Safe
For optimal security, it is highly recommended to secure the safe to a wall or floor using the provided fixing bolts.
- Choose a suitable location for the safe, ensuring it is on a solid surface.
- Open the safe door and locate the pre-drilled mounting holes on the back or bottom of the safe.
- Mark the drilling points on the wall or floor through these holes.
- Drill appropriate pilot holes using a drill bit suitable for your wall/floor material.
- Align the safe with the drilled holes and insert the fixing bolts.
- Tighten the bolts securely to firmly attach the safe.

Image: Diagram showing the external dimensions (39cm H x 35cm W x 36cm D) and internal dimensions (38cm H x 34cm W x 31cm D) of the Yale Electronic Alarmed Safe Large (YEC/390/DB2), indicating its size and 40-liter capacity.
Operating Instructions
Opening the Safe with PIN
- Enter your 3 to 8 digit PIN code on the keypad.
- Press the '#' button.
- The green LED indicator will light up, and you will hear a beep.
- Within 5 seconds, turn the handle clockwise to open the safe door.
Opening the Safe with Mechanical Key (Emergency Override)
Use this method if you forget your PIN, the batteries are depleted, or the electronic system malfunctions.
- Locate the keyhole cover on the keypad panel.
- Remove the cover.
- Insert one of the mechanical override keys into the keyhole and turn it counter-clockwise.
- Turn the handle clockwise to open the safe door.
Closing and Locking the Safe
- Close the safe door firmly.
- Turn the handle counter-clockwise to engage the locking bolts. The safe is now locked.
Alarm Features
The Yale Electronic Alarmed Safe features a built-in 130dB alarm to deter unauthorized access.
- Force Attack: If the safe detects an attempt of force attack (e.g., prying, heavy impact), the 130dB alarm will sound for 1 minute.
- Incorrect PIN Entries:
- After three consecutive incorrect PIN entries, the alarm will sound for 1 minute.
- After two more consecutive incorrect PIN entries (total of five), the alarm will sound for 1 minute, and the keypad will be locked down for 3 minutes. During this lockout period, the keypad will not respond to any input.
- Disabling the Alarm: The alarm can be stopped by entering the correct PIN code or by using the mechanical override key.

Image: Close-up of the Yale safe's keypad and lock, highlighting LED indicators (green for open, red for error, flashing for low battery), the electronic lock with handle, anti-bump solenoid mechanism, and the one-touch PIN reset button. The image also indicates that the 130dB alarm is activated by attempted forced entry or incorrect PIN entries.

Image: Flowchart illustrating the integrated automatic locking system and alarm sequence. It shows that after 3 incorrect PIN entries or attempted forced entry, the 130dB alarm sounds for 1 minute. The alarm stops upon correct PIN entry or using the key. If 2 more incorrect PINs are entered, the alarm sounds for another 2 minutes, and the keypad is disabled for 3 minutes. The alarm can then be deactivated using the key.
Maintenance
Battery Replacement
When the batteries are low, the red LED indicator will flash, and the safe may emit a warning beep during operation. Replace the batteries promptly to ensure continuous functionality.
- Open the safe door.
- Locate the battery compartment on the inside of the door.
- Remove the old AA batteries.
- Insert 4 new AA alkaline batteries, ensuring correct polarity (+/-).
- Close the battery compartment cover.
Note: Replacing batteries does not erase your programmed PIN code.
Cleaning
Wipe the safe's exterior with a soft, damp cloth. Do not use abrasive cleaners or solvents, as these can damage the finish or electronic components.
Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Safe does not open with PIN. | Incorrect PIN entered; batteries are low or dead; keypad locked out. | Re-enter correct PIN. Replace batteries. Wait 3 minutes if keypad is locked out, then try again. Use mechanical key. |
| Alarm sounds unexpectedly. | Force attack detected; multiple incorrect PIN entries. | Enter correct PIN or use mechanical key to disarm. Ensure safe is securely mounted. |
| Red LED flashes during operation. | Low battery warning. | Replace all 4 AA batteries immediately. |
| Keypad is unresponsive. | Keypad is locked out due to too many incorrect PIN entries. | Wait for the 3-minute lockout period to expire. Use mechanical key if urgent access is needed. |
| Safe door does not close properly. | Obstruction in the door frame; locking bolts not aligned. | Check for any items blocking the door. Ensure the safe is on a level surface and the door is aligned. |
Specifications
- Model: YEC/390/DB2
- Brand: Yale
- Type: Electronic Alarmed Safe
- Lock Type: Electronic (PIN), Key (Mechanical Override)
- Material: Stainless Steel
- Colour: Black
- External Dimensions (H x W x D): 39cm x 35cm x 36cm
- Internal Dimensions (H x W x D): 38cm x 34cm x 31cm
- Capacity: 40 Liters
- Weight: 10.6 Kilograms
- Power Source: 4 x AA Alkaline Batteries (included)
- Alarm: 130dB (triggered by force attack or incorrect PIN entries)
- Special Features: Lockable, Anti-bump solenoid, One-touch PIN reset.
- Mounting Type: Wall Mount / Floor Mount

Image: The Yale Electronic Alarmed Safe discreetly placed inside a wooden cabinet, demonstrating a common installation scenario.

Image: The Yale Electronic Alarmed Safe positioned under a desk, with its door slightly ajar, showing its compact fit in an office or home environment.
Warranty and Support
For warranty information, technical support, or service inquiries, please refer to the official Yale website or contact your local Yale distributor. Keep your purchase receipt as proof of purchase for warranty claims.
You can find additional resources and contact information on the official Yale website: www.yalehome.com







