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THDB SeriesTimer - Delay-on-Break
Connection:
UTL = Optional Untimed Load
L = Timed Load
S1 = Initiate Switch
RT is used when external adjustment is ordered.
L1 N/L2
The THDB Series combines accurate timing
circuitry with high power, solid-state switching.
It can switch motors, lamps, and heaters directly
without a contactor. You can reduce labor,
component cost, and increase reliability with these
small, easy-to-use, Digi-Power timers.
Operation (Delay-on-Break):
Input voltage must be applied before and during timing.
Upon closure of the initiate switch, the output energizes.
The time delay begins when the initiate switch is opened.
The output remains energized during timing. At the end
of the time delay, the output de-energizes. The output
energizes 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.
For more information see:
Appendix A, pages 156-164 for function descriptions
and diagrams.
Appendix B, page 165, Figure 4 for dimensional drawing.
External Resistance vs. Time Delay:
Features:
• High load currents up to 20A, 200A inrush
• Fixed or adjustable 0.1s - 1000m in 6 ranges
• ±0.5% repeat accuracy
• ±1% factory calibration
• 24, 120, or 230VAC
• Metallized mounting surface for heat transfer
• Totally solid-state & encapsulated
Approvals:
Auxiliary Products:
• External adjust potentiometer:
P / N: P 10 0 4- 9 5
P/N: P1004-95-X
• Female quick connect:
P / N : P1 0 1 5 - 1 3 (A W G 10 / 1 2 )
P / N : P1 0 1 5 -6 4 ( AW G 1 4 / 1 6 )
• Quick connect to screw adaptor:
P/N: P1015-18
• Versa-knob: P/N: P0700-7
Available Models:
THDB231C
THDB232C
THDB233C
THDB234C
THDB235C
THDB4110MC
THDB421A
If desired part number is not listed, please call
us to see if it is technically possible to build.
THDB430C
THDB431C
THDB432C
THDB433C
THDB434C
THDB435C
Order Table:
THDB
X
Input Voltage
─2 - 24VAC
─4 - 120VAC
─6 - 230VAC
X
Adjustment
─1 - Fixed
─2 - External adjust
─3 - Onboard adjust
X
Time Delay*
─0 - 0.1 - 10s
─1 - 1 - 100s
─2 - 10 - 1000s
─3 - 0.1 - 10m
─4 - 1 - 100m
─5 - 10 - 1000m
Specifications
Time Delay
Range .............................. 0.1s - 1000m in 6 adjustable ranges or fixed
Repeat Accuracy .................... ±0.5% or 20ms, whichever is greater
Tolerance (Factory Calibration) ........ ≤ ±1%
Reset Time .......................... ≤ 150ms
Initiate Time ........................ ≤ 20ms
Time Delay vs Temp. & Voltage ........ ≤ ±2%
Input
Voltage ............................. 24, 120, or 230VAC
Tolerance ........................... ±20%
AC Line Frequency .................. 50/60 Hz
Power Consumption ................. ≤ 2VA
Output
Type ............................... Solid state
Form ............................... NO, closed before & during timing
Maximum Load Current Output Steady State Inrush**
A 6A 60A
B 10A 100A
C 20A 200A
X
Output Rating
─A - 6A
─B - 10A
─C - 20A
*If fixed delay is selected, insert
delay (0.1 - 1000) followed by (S) sec.
or (M) min.
Voltage Drop ........................ ≅ 2.5V @ rated current
Off State Leakage Current ............ ≅ 5mA @t 230VAC
Minimum Load Current .............. 100mA
Protection
Circuitry ........................... Encapsulated
Dielectric Breakdown ................ ≥ 2000V RMS terminals to mounting surface
Insulation Resistance ................. ≥ 100 MΩ
Mechanical
Mounting ** ........................ Surface mount with one #10 (M5 x 0.8) screw
Dimensions ......................... 2 x 2 x 1.51 in. (50.8 x 50.8 x 38.4 mm)
Termination ......................... 0.25 in. (6.35 mm) male quick connect terminals
Environmental
Operating / Storage Temperature ...... -40° to 60°C / -40° to 85°C
Humidity ........................... 95% relative, non-condensing
Weight ............................. ≅ 3.9 oz (111 g)
**Must be bolted to a metal surface using the included heat sink compound. The maximum
surface temperature is 90°C. Inrush: Non-repetitive for 16ms.
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