Description

The KRDB Series is a compact time delay relay measuring only

2 in. (50.8 mm) square. Its microcontroller timing circuit provides

excellent repeat accuracy and stability. Encapsulation protects

against shock, vibration, and humidity. The KRDB Series is a cost

effective approach for OEM applications that require small size,

isolation, reliability, and long life.

Operation (Delay-on-Break)

Input voltage must be applied before and during timing. Upon

closure of the initiate switch, the output relay 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 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.

FEATURES BENEFITS

Microcontroller based Repeat accuracy + / - 0.5,

Factory calibration + / - 5

Isolated, 10A, SPDT

output contacts Allows control of loads for AC or DC voltages

Encapsulated

No moving parts to arc and wear out over time and

encapsulated to protect against shock, vibration,

and humidity

Compact, low cost

design measuring 2 in.

(50.8mm) square

Allows flexiblility for OEM applications

KRDB421屬于工業(yè)自動化與控制 > 延時繼電器。力特公司制造生產(chǎn)的KRDB421延時繼電器延時繼電器是使用較小控制信號啟動或停止大負載的機電器件。這些器件內(nèi)置有時間延遲來控制繼電器的觸發(fā)。功能包括間隔、關閉延遲、打開延遲、單次、可編程（多功能）、重復周期、雙定時器、信號開/關延遲和 Star/Delta 控制器。