THDB421A工業(yè)自動(dòng)化與控制的延時(shí)繼電器規(guī)格書PDF中文資料

Description

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, 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.

FEATURES BENEFITS

Microcontroller based Repeat accuracy + / - 0.5,

Factory calibration + / - 1

High load currents up

to 20A, 200A inrush

Allows direct operation of motors, lamps and

heaters without a contactor

Totally solid state

and encapsulated

No moving parts to arc and wear out over time and

encapsulated to protect against shock, vibration,

and humidity

Metalized

mounting surface Facilitates heat transfer in high current applications

Compact, low

cost design

Allows flexibility for OEM applications and reduces

labor and components costs