The Clever Little Box TU-8A is an eight-channel Digital Timer Unit, and can be used as a ‘direct replacement for the Danfoss 841 and Danfoss 842 timer units’ or the ‘Randall 841 or Randall 842′ (as they were originally branded). The TU8A offers straightforward accessibility, and can be easily programmed for virtually any time switch application.
Features a sleek yet modern design; ideal for educational applications where the scheduled broadcast of tones, messages, alarms or recorded audio files/tracks is required on an ongoing basis. In addition to this being an ideal timer for schools, colleges, and other educational facilities, it is also a great device for timed switching of bells, sounders, and other devices in industrial and commercial applications.
The TU8A is a truly versatile solution which can even be used to control domestic devices, such as zoned under floor heating! This Timer Unit has been designed to provide programmed weekly event switching of 8 independent relay outputs – easily matching the Danfoss 841 and 842 channel capacity, and provides NO (Normal Open) or NC (Normal Closed) relay contacts to each of its 8 Relay Outputs, with 10A capability at UK mains voltages or up to 24V DC applications.
- Clear blue LCD display screen
- Event manual override facility
- 7-day week event Switching Timer
- Easy access Phoenix Connectors per Relay output and Power connectivity
- Onboard memory maintains time & program settings – approx. 7 days in event of power loss
Events per Day
64 (32 on/off)
12A @ 120V AC
10A @ 240V AC, or 24V DC
12V DC (Mains Plugtop PSU supplied)
Power Out Memory
Up to 7 days memory storage of Time/Program settings
140 mm W x 110 mm H x 25 mm D
Net = 0.52 kg
Shipping = 0.90 kg
To view the TU-8A’s partnered product, click here
TU-8A Pulsing Units can also be bought alongside this product. These units perfectly replicate the pulsing that Danfoss 841 and 842 provides, but will need a certified electrician to fit and/or install them. If you require further assistance or information, please feel free to contact us via 0191 414 4241, or simply send us an email at .
To view additional information, be sure to check out the Data Sheets below.