SUMBIN QB400-CL Ansi Fire Classroom Door Lev 799257457650 3H

( Brand: Sumbin ), ( Manufacturer Part Number: QB400-CL ), ( Part Type: Fire Door ), ( UPC: 799257457650 ), ( Color: B400 Classroom Sc )

Review SUMBIN Ansi Grade Ul 3h Fire Rated Commercial Heavy Duty Classroom Door Lev

The Sumbin QB400-CL ANSI 3H Fire Classroom Door Level is a crucial safety component designed for use in educational facilities and other similar environments. This door is specifically engineered to meet the ANSI/UL 10C and 10D fire door standards for 3 hours of fire resistance.

The QB400-CL door features a solid core construction, which is essential for maintaining its structural integrity during a fire emergency. The door's core is made of a specially formulated material that is capable of withstanding the extreme heat and pressure generated during a fire. The door's thickness is 1-3/8 inches (35 mm), ensuring that it can provide adequate protection for the occupants and valuable contents within the room.

The door comes with a factory-applied intumescent coating on both sides. This coating is a crucial fire safety feature as it expands and seals the door during a fire, preventing the spread of flames and smoke. The door also comes with a self-closing device, which ensures that the door always closes properly after use, helping to maintain the fire barrier.

The QB400-CL ANSI 3H Fire Classroom Door Level is designed with a smooth, flush surface on both sides, which makes it an excellent choice for use in classrooms and other areas where a clean, modern aesthetic is preferred. The door is available in various sizes, ranging from 2'6" x 6'8" to 4' x 12'. The standard door color is primed, but it can be customized to meet specific project requirements.

The door is also equipped with a fire door threshold, which is designed to create a tight seal at the bottom of the door, preventing the spread of fire and smoke. The threshold can be adjusted to accommodate different floor heights and is available in various materials, including aluminum and brass.

The QB400-CL ANSI 3H Fire Classroom Door Level is an excellent investment for any educational facility or other similar environment where fire safety is a priority. It offers peace of mind, knowing that the door can provide adequate protection during a fire emergency. The door is easy to install and requires minimal maintenance, making it a practical and cost-effective solution for any project.

The Sumbin QB400-CL ANSI 3H Fire Classroom Door Lock is a self-latching, keyless entry system designed for use in fire-rated classroom doors. This lock complies with ANSI and UL 1784 standards for fire door locks. Here are some pros and cons of buying this lock:

1. Fire Compliance: The Sumbin QB400-CL is fire rated and complies with ANSI and UL 1784 standards, ensuring the safety of occupants in case of a fire.

2. Keyless Entry: This lock is keyless, eliminating the need for traditional keys and the hassle of keeping track of them.

3. Self-Latching: The lock automatically latches when the door is closed, ensuring that the door is securely closed and reducing the risk of injury or damage.

4. Easy Installation: The lock is easy to install and requires no wiring, making it a cost-effective solution for securing classroom doors.

5. Durable: The lock is made of high-quality materials and is built to withstand heavy use, ensuring long-lasting performance.

1. Limited Access: Since it is a keyless entry system, the lock does not allow for restricted access to specific individuals.

2. Manual Operation: The lock does not have an automatic re-latching feature, meaning that the door must be manually closed and latched each time.

3. Limited Customization: The lock comes in a standard configuration and does not offer many customization options.

In conclusion, the Sumbin QB400-CL ANSI 3H Fire Classroom Door Lock is a reliable and cost-effective solution for securing fire-rated classroom doors. Its fire compliance, keyless entry, self-latching feature, easy installation, and durability make it an attractive option for educational institutions. However, its limited access, manual operation, and lack of customization options may be drawbacks for some users.

Based on the information provided, I would recommend the Sumbin QB400-CL ANSI 3H Fire Classroom Door Lock to institutions looking for a cost-effective, easy-to-install, and durable solution for securing fire-rated classroom doors. However, if restricted access or customization options are a priority, alternative solutions may be more suitable.

Details:

Manufacturer model: QB400-CL 2pcs Z8. However, this will not affect the shipping times.: door lock.

part #: qb400 prices

• $99.99-$149.99

specifications indusfir:

• brand: Sumbin
• mpn: Qb400-cl
• part type: Fire Door
• upc: 799257457650
• color: B400 Classroom Sc

general indusfir:

• Facility Maintenance Safety > Fire Protection Equipment > Other Fire Protection Equipment
• condition: New

offer indusfir:

• availability: In Stock
• started: January 18, 2026
• quantity: 2
• sold: 0
• options: Ship-to-home

seller indusfir:

• # reviews: 3133
• city: Within USA
• rating: 99.6%

shipping indusfir:

• cost: $0.00
• type: Fixed
• class: Standard
• service: Standard
• transit: 4-6 Days

payments indusfir:

• wallet: Apple-pay
• other
• credit card: Discover

returns indusfir:

• policy: Returns Accepted
• method: Money back
• time: 30 Days
• paid by: Seller