PTHF4900DK工业自动化与控制的延时继电器规格书PDF中文资料

PTHF4900DK属于工业自动化与控制的延时继电器。由力特公司制造生产的PTHF4900DK延时继电器延时继电器是使用较小控制信号启动或停止大负载的机电器件。这些器件内置有时间延迟来控制继电器的触发。功能包括间隔、关闭延迟、打开延迟、单次、可编程（多功能）、重复周期、双定时器、信号开/关延迟和 Star/Delta 控制器。

描述 Description

The PTHF4900DK can be used for a variety of applications

from chemical metering, to temperature regulating, to energy

management. The infinite adjustability from 1 to 99 provides

accurate percentage on control over a wide factory fixed cycle

period. When mounted on a metal surface, it can be used to

drive solenoids, contactors, relays, or lamps, up to 20A steady,

200A inrush. The PTHF4900DK is the suggested replacement

for the PT Series.

Operation (Percentage)

Upon application of input voltage, the output energizes and

the T1 ON time begins. At the end of the ON time, the output

de-energizes and the T2 OFF time begins. At the end of the

OFF time, the output energizes and the cycle repeats as long as

input voltage is applied. Increasing the ON time decreases the

OFF time. The total cycle period is equal to the ON time plus the

OFF time. The total cycle period is factory fixed. ON time range

is 1 to 99 percent of cycle period.

Reset: Removing input voltage resets the output and time

delays, and returns the sequence to the T1 ON time.

FEATURES BENEFITS

Microcontroller based Repeat accuracy + / -0.5,

Factory calibration + / - 5

ON/OFF recycling

percentange control

1 to 99

Accurate control over a wide factory fixed

cycle period

Compact, low

cost design

Allows flexiblility for OEM applications and reduces

component and labor costs

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