Add to favorites
TM624 40-Group School Factory Automatic Bell Timer 1-99s Interval Programmable Digital Time Relay LCD Display DIN Rail Mount — Open-Box, 23% Off
Brand: HCUSR
Condition: Used - VeryGood
$2073
$2699
-23% Save $626
Updated: 5 days ago
Description
1.40-Group High Capacity Programming & Precise Interval Control: Supports up to 40 ON/OFF programs daily, meeting complex schedule needs in schools, factories, etc.
Precise 1-99 second interval control, ideal for bell ringing, signal alerts, and other short-interval applications.
2.Smart Microcomputer Control & Clear LCD Display: Microcomputer chip ensures time error <1 second per day for long-term accuracy.
Large LCD clearly shows time, program status, and settings for intuitive operation.
3.16A Strong Load & Wide Power Compatibility: 220V AC 50/60Hz power supply with 16A load capacity. Directly controls bells, horns, lights, etc.
Compatible with single-phase and three-phase systems. Expand control with external AC contactors.
4.Power Failure Protection & Durable Design: Mechanical life >30,000 cycles, electrical endurance >10,000 cycles, power consumption <2W.
5.Professional Applications & Easy Installation: Designed for school bells, factory schedules, broadcasting systems. Supports weekly cycle programming. 35mm DIN rail mounting with clear wiring diagrams for easy integration into various power systems.
The TM624 is a professional automatic bell timer controller with microcomputer precision control, supporting up to 40 daily programs and 1-99 second intervals. Featuring LCD display and power failure protection, it is designed for schools, factories, medical facilities, and other venues requiring precise time management.
Features:
High-Capacity Programming: 40 independent time settings for complex schedules
Precise Interval Control: 1-99 second adjustable intervals for bells and alerts
Smart Protection: Built-in rechargeable battery retains settings during outages
Durable & Reliable: Mechanical life >30,000 cycles, suitable for high-frequency use
Universal Installation: 35mm DIN rail mounting for quick deployment
Technical Parameters:
Model: TM624
Power Supply: 220V AC 50/60Hz
Load: 16A
Program Groups: 40 ON/OFF per day
Control Range: 1 second to 99 seconds
Power Consumption: <2W
Time Error: <1s/day
Mechanical Life: >30,000 cycles
Electrical Life: >10,000 cycles
Installation: 35mm DIN rail
Application:
Educational Institutions: Class bells, break alerts, exercise reminders
Industrial Production: Factory shift bells, break time alerts Public Facilities: Hospital call systems, stadium time management, broadcasting
Commercial Venues: Store opening/closing alerts, meeting time control
Wiring Instruction:
Single-Phase Wiring: Use AC contactor for expansion control when device current exceeds timer rating
Three-Phase Wiring: External AC contactor required for three-phase powered equipment
Safety Note: Ensure power is off before installation. Always use contactors for high-power devices
Features:
High-Capacity Programming: 40 independent time settings for complex schedules
Precise Interval Control: 1-99 second adjustable intervals for bells and alerts
Smart Protection: Built-in rechargeable battery retains settings during outages
Durable & Reliable: Mechanical life >30,000 cycles, suitable for high-frequency use
Universal Installation: 35mm DIN rail mounting for quick deployment
Technical Parameters:
Model: TM624
Power Supply: 220V AC 50/60Hz
Load: 16A
Program Groups: 40 ON/OFF per day
Control Range: 1 second to 99 seconds
Power Consumption: <2W
Time Error: <1s/day
Mechanical Life: >30,000 cycles
Electrical Life: >10,000 cycles
Installation: 35mm DIN rail
Application:
Educational Institutions: Class bells, break alerts, exercise reminders
Industrial Production: Factory shift bells, break time alerts Public Facilities: Hospital call systems, stadium time management, broadcasting
Commercial Venues: Store opening/closing alerts, meeting time control
Wiring Instruction:
Single-Phase Wiring: Use AC contactor for expansion control when device current exceeds timer rating
Three-Phase Wiring: External AC contactor required for three-phase powered equipment
Safety Note: Ensure power is off before installation. Always use contactors for high-power devices
Sold by
Amazon Warehouse
Official Amazon outlet for open-box & returned items
- Backed by Amazon's A-to-Z Guarantee
- 30-day return policy
- Ships from Amazon fulfillment centers
- Price verified on Amazon
Product Details
- SKU:
- awhd-us-b0frglylxj
- Model:
- TM624
- Country:
- US
- ASIN:
- B0FRGLYLXJ
- UPC:
- 602835640262
Shopping Smarter
Common questions about buying open-box and refurbished.
Why buy refurbished or open-box?
Refurbished and open-box products offer the same performance as new at a fraction of the price. You're already saving $6 on this listing. They've been inspected, tested, and are ready to use — the only difference is the price tag. Buying refurbished also reduces electronic waste, extending product life cycles and keeping functional devices out of landfills.
What's the difference between open-box and refurbished?
Open-box products are customer returns that have been inspected and confirmed functional. They may show little to no use — often the item was returned simply because the buyer changed their mind. Refurbished products have been professionally repaired or restored by technicians, tested to meet or exceed manufacturer specifications, and sometimes come with a warranty. Both are a smart alternative to buying new.
Why use OpenBoxFox?
Finding refurbished deals is time-consuming — you'd have to check Amazon Warehouse, Reebelo, Dyson Outlet, and others separately for HCUSR products. OpenBoxFox aggregates these listings in one place, so you can compare and find the best deal without the legwork. We update pricing daily so you always see current availability and real savings.
Is it safe to buy refurbished?
Yes. Products listed on OpenBoxFox come from established retailers like Amazon, Reebelo, and Dyson — not unknown third-party sellers. Each retailer has buyer protection policies, return windows, and in some cases warranties. You get the price advantage of used goods with the purchase security of a known retailer.
