RXUJYC Large Safe Box (5.0 Cub)
Contents
RXUJYC 5.0 Cub Large Fireproof Safe User Manual
Model: Large Safe Box (5.0 Cub)
Introduction
This manual provides comprehensive instructions for the setup, operation, maintenance, and troubleshooting of your RXUJYC 5.0 Cub Large Fireproof Safe. Please read this manual thoroughly before using the safe to ensure proper function and security.
The RXUJYC 5.0 Cub Large Fireproof Safe is designed to protect your valuables from theft and fire. It features a robust steel construction, multiple unlocking methods, and an integrated alarm system for enhanced security.
Product Overview

The RXUJYC 5.0 Cub Large Fireproof Safe, with its door open, revealing ample internal storage space suitable for various valuables such as cameras, jewelry, documents, and cash. The digital keypad and external battery port are visible on the door.

Detailed dimensions of the safe: 60 cm (23.6 inches) in height, 31 cm (12.2 inches) in depth, and 38 cm (15 inches) in width, illustrating its compact yet spacious design.
Key Features:
- Large Capacity: Spacious interior (approximately 4 cubic feet) for laptops, pistols, jewelry, documents, and cash.
- Robust Construction: Reinforced solid steel body with 3 x 0.7-inch (20mm) live-locking bolts and anti-pry concealed hinges for enhanced security.
- Multiple Unlocking Methods: Digital programmable keypad, emergency backup keys, and an external battery case for power failure.
- Anchoring Design: Pre-drilled holes and included expansion bolts for secure mounting to walls, floors, or closets.
- Removable Shelves: Three adjustable/removable shelves for flexible organization of contents.
- Dual Security Alarm: Activates after multiple incorrect password attempts, locking the system for a set duration.
- Internal LED Light: Illuminates the interior when the door is opened.
Setup
Unpacking and Initial Inspection:
- Carefully remove the safe from its packaging.
- Inspect the safe for any signs of damage during transit. If damaged, contact customer support immediately.
- Locate the included accessories: 1 x Using Manual, 2 x Emergency Keys, 4 x Expansion Screws.
Battery Installation:
The safe requires batteries for the digital keypad and internal light. Batteries are not included.
- Open the battery compartment located on the back of the keypad or inside the door.
- Insert the required number of AA batteries (typically 4, refer to the compartment for exact quantity) ensuring correct polarity (+/-).
- Close the battery compartment securely.
Mounting the Safe:
For maximum security, it is highly recommended to anchor the safe to a wall, floor, or inside a cabinet.

The safe securely mounted within a closet, demonstrating its anti-theft system with alarm indicators. This image also highlights features like wall/cabinet mounting, internal LED light, and the password error alert system.
- Choose a suitable location for the safe, such as a closet, wall, or floor, ensuring it is a stable and secure surface.
- Position the safe and mark the drilling points through the pre-drilled holes on the back or bottom of the safe.
- Drill holes into the wall/floor using an appropriate drill bit size for the expansion screws.
- Align the safe with the drilled holes and insert the expansion screws.
- Tighten the screws firmly to secure the safe in place.
Operating Instructions
Setting Your Passcode:
Upon first use, you will need to set your personal passcode. Refer to the specific instructions provided with your safe for the exact procedure, as it may vary slightly.
- With the safe door open, press the internal reset button (usually a small red button on the inside of the door or near the battery compartment).
- Enter your desired passcode (typically 3-8 digits) on the keypad.
- Press the "#" or "E" button to confirm. The indicator light should confirm successful programming.
- Test the new passcode with the door open before closing it.
Unlocking the Safe:

Illustration of the three primary methods to unlock the safe: using the digital passcode, using the emergency backup key, and using the external battery case in conjunction with the passcode if internal batteries are depleted.
The safe offers three unlocking methods:
- Method 1: Digital Passcode
- Enter your programmed passcode on the keypad.
- Press the "#" or "E" button.
- Within 5 seconds, turn the knob clockwise to open the door.
- Method 2: Emergency Key
- Insert the emergency key into the keyhole (often concealed behind a cover on the keypad).
- Turn the key counter-clockwise.
- Simultaneously turn the knob clockwise to open the door.
- Note: Keep emergency keys in a secure location outside the safe.
- Method 3: External Battery Case (if internal batteries are dead)
- Connect the external battery case to the designated port on the keypad.
- Enter your programmed passcode.
- Press the "#" or "E" button.
- Within 5 seconds, turn the knob clockwise to open the door.
Locking the Safe:
To lock the safe, simply close the door firmly. The live-locking bolts will automatically engage.
Using the Removable Shelves:

A visual comparison showing the safe's interior with shelves installed for organized storage of smaller items, and without shelves to accommodate larger items such as binders or tall statues.
The safe includes three removable shelves to customize the internal storage space. To adjust or remove a shelf, simply lift it slightly and slide it out from its supports. Reinsert by aligning it with the desired support slots.
Maintenance
- Battery Replacement: Replace batteries promptly when the low battery indicator light appears or if the keypad becomes unresponsive. Always use new, high-quality alkaline batteries.
- Cleaning: Wipe the exterior of the safe with a soft, damp cloth. Avoid abrasive cleaners or solvents that could damage the finish. Do not use water directly on the keypad or electronic components.
- Door Mechanism: Periodically check the door hinges and locking bolts for smooth operation. Do not lubricate the locking mechanism unless specifically instructed by customer support.
- Key Storage: Store emergency keys in a secure location away from the safe and away from direct access by unauthorized individuals.
Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Safe does not open with passcode. | Incorrect passcode entered. Batteries are low or dead. Keypad malfunction. | Re-enter passcode carefully. Replace batteries or use external battery case. Use emergency key. Contact customer support if issue persists. |
| Alarm sounds unexpectedly. | Multiple incorrect passcode attempts. Safe has been tampered with. | Enter correct passcode to disarm. Inspect safe for signs of forced entry. |
| Door does not close or lock properly. | Obstruction in the door frame. Bolts are not retracting fully. | Check for any items blocking the door. Ensure the knob is fully turned to the open position before closing. Contact customer support. |
| Internal LED light not working. | Batteries are low or dead. Light sensor issue. | Replace batteries. Ensure no obstruction is covering the light sensor. Contact customer support. |
If you encounter issues not listed here or if solutions do not resolve the problem, please contact RXUJYC customer support.
Specifications
- Model: Large Safe Box
- Size: 5.0 Cub
- Capacity: Approximately 4 Cubic Feet
- Product Dimensions (L x W x H): 30.99 x 38 x 59.94 cm (12.2 x 15.0 x 23.6 inches)
- Item Weight: 16.3 Kilograms (35.9 lbs)
- Material: Alloy Steel
- Color: Black
- Lock Type: Electronic Combination Lock
- Special Features: Alarm System, Anti-Theft, Combination Lock, Removable Shelf, Sensor Light
- Included Components: 1 x Home Safe, 1 x Using Manual, 2 x Emergency Keys, 4 x Expansion Screws
- Batteries Required: Yes (Batteries not included)
Warranty and Support
For warranty information, technical support, or to inquire about replacement parts (such as lost emergency keys), please contact RXUJYC customer service. Refer to the contact information provided at the point of purchase or on the official RXUJYC website.
When contacting support, please have your product model number (Large Safe Box) and purchase details ready.
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