TDB/TDBH/TDBL Series - Relay-Output, Delay-on-Break Time Delay Relay

Littelfuse Time Delay Relays
The TDB Series combines accurate digital circuitry with isolated, 10A, DPDT or SPDT contacts in an 8 or 11-pin plug-in package. The TDB Series features DIP switch selectable time delays ranging from 0.1-10,230 seconds in three ranges. The TDB Series is the product of choice for custom control panel and OEM designers.


Operation (Delay-on-Break)
Input voltage must be applied to the input before and during timing. Upon closure of the initiate switch, the output relay is energized. The time delay begins when the initiate switch is opened (trailing edge triggered). The output remains energized during timing. At the end of the time delay, the output de-energizes. The output will energize if the initiate switch is closed when input voltage is applied.
Reset: Reclosing the initiate switch during timing resets the time delay. Loss of input voltage resets the time delay and output.

Access specifications, certifications, check availability and order parts below

Catalog #Input
Voltage (V)
Output
Form
Storage Temperature (F/C)Time Delay RangeSample capableCompare
TDB120AL120VACSPDT-30° to 85°C (-22°F to 185°F)1 - 1 023s in 1s incrementsNo
TDB120ALD120VACDPDT-30° to 85°C (-22°F to 185°F)1 - 1 023s in 1s incrementsNo
TDB12D12VDCDPDT-30° to 85°C (-22°F to 185°F)1 - 1 023s in 1s incrementsNo
TDB230AL230VACSPDT-30° to 85°C (-22°F to 185°F)1 - 1 023s in 1s incrementsNo
TDB24AL24VACSPDT-30° to 85°C (-22°F to 185°F)1 - 1 023s in 1s incrementsNo
TDB24DL24VDCSPDT-30° to 85°C (-22°F to 185°F)1 - 1 023s in 1s incrementsNo
TDBH120AL120VACSPDT-30o to 85oC (-22oF to 185oF)10 - 10 230s in 10s incrementsNo
TDBH120ALD120VACDPDT-30o to 85oC (-22oF to 185oF)10 - 10 230s in 10s incrementsNo
TDBL120AL120VACSPDT-30o to 85oC (-22oF to 185oF)0.1 - 102.3s in 0.1s incrementsNo
TDBL120ALD120VACDPDT-30o to 85oC (-22oF to 185oF)0.1 - 102.3s in 0.1s incrementsNo
TDBL24DL24VDCSPDT-30o to 85oC (-22oF to 185oF)0.1 - 102.3s in 0.1s incrementsNo