Datasheet > KRD3421A

KRD3421A

更新时间： 2024-11-22 14:56:43

品牌	Logo	应用领域
力特 - LITTELFUSE		/
页数	文件大小	规格书
2页	607K
描述
Operation (Recycling Flasher - ON Time First) Upon application of input voltage, the output energi

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KRD3421A 数据手册

Time Delay Relays

Dedicated - Recycle

KRD3 SERIES

Description

The KRD3 Series measures only 2 in. (50.8 mm) square.Its

solid-state timing circuit provides excellent repeat accuracy and

stability. Encapsulation protects against shock, vibration, and

humidity. The KRD3 Series is a cost effective approach for OEM

applications that require small size, isolation, reliability, and

long life.

Operation (Recycling Flasher - ONTime First)

Upon application of input voltage, the output energizes and

theT1 ON time begins. At the end of the ON time, the output

de-energizes and theT2 OFF time begins. At the end of the

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

input voltage is applied.

Reset: Removing input voltage resets the output and time

delays, and returns the sequence toT1 ON time.

Features & Beneﬁts

FEATURES

BENEFITS

Wiring Diagram

Compact, low cost

design measuring 2 in.

(50.8mm) square

Provides greater ﬂexibility for OEM applications and

reduces component and labor costs

L1 N/L2

V = Voltage

Repeat Accuracy + / -0.5%,

Factory calibration + / - 5%

Microcontroller based

C = Common,Transfer Contact

NO = Normally Open

NC = Normally Closed

Isolated, 10A, SPDT

output contacts

Allows control of loads for AC or DC voltages

Protects against shock, vibration, and humidity

Encapsulated

A knob is supplied for adjustable

units, or R terminals 4 & 5 for

external adjust. See external

adjustment vs time delay chart.

Accessories

P1004-95, P1004-95-X Versa-Pot

Panel mountable, industrial potentiometer

Relay contacts are isolated.

recommended for remote time delay adjustment.

P1023-6 Mounting bracket

The 90° orientation of mounting slots makes

installation/removal of modules quick and easy.

P0700-7 Versa-Knob

Designed for 0.25 in (6.35 mm) shaft of

Versa-Pot. Semi-gloss industrial black ﬁnish.

Ordering Information

P1015-13 (AWG 10/12), P1015-64 (AWG 14/16)

Female Quick Connect

These 0.25 in. (6.35 mm) female terminals are

constructed with an insulator barrel to provide

strain relief.

INPUT

TIME

OPERATING

SEQUENCE

MODEL

ADJUSTMENT

VOLTAGE

120VAC

DELAY

KRD3420A

KRD3421A

KRD3434A

Onboard knob 0.1 - 10s

Onboard knob 1 - 100s

On time ﬁrst

P1015-18 Quick Connect to Screw Adapter

Screw adapter terminal designed for use with

all modules with 0.25 in. (6.35 mm) male quick

connect terminals.

External

1 - 100m

If you don’t ﬁnd the part you need, call us for a custom product 800-843-8848

C103PM (AL) DIN Rail

35 mm aluminum DIN rail available in a 36 in.

(91.4 cm) length.

P1023-20 DIN Rail Adapter

Allows module to be mounted on a 35 mm DIN

type rail with two #10 screws.

www.littelfuse.com/krd3

Rev: 1-A-061016

中文翻译

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与KRD3421A相关器件

型号	品牌	获取价格	描述	数据表
KRD3424A	LITTELFUSE	获取价格	Operation (Recycling Flasher - ON Time First) Upon application of input voltage, the outpu
KRD9120B	LITTELFUSE	获取价格	Operation (Retriggerable Single Shot) Function Type A (Output Initially De-energized): Inp
KRD92115MA	LITTELFUSE	获取价格	Operation (Retriggerable Single Shot) Function Type A (Output Initially De-energized): Inp
KRD92115MB	LITTELFUSE	获取价格	Operation (Retriggerable Single Shot) Function Type A (Output Initially De-energized): Inp
KRD9220B	LITTELFUSE	获取价格	Operation (Retriggerable Single Shot) Function Type A (Output Initially De-energized): Inp
KRD93115MA	LITTELFUSE	获取价格	Operation (Retriggerable Single Shot) Function Type A (Output Initially De-energized): Inp
KRD9423B	LITTELFUSE	获取价格	Operation (Retriggerable Single Shot) Function Type A (Output Initially De-energized): Inp
KRDI120	LITTELFUSE	获取价格	Operation (Interval) Upon application of input voltage, the time delay begins. The output
KRDI121	LITTELFUSE	获取价格	Operation (Interval) Upon application of input voltage, the time delay begins. The output
KRDI122	LITTELFUSE	获取价格	Operation (Interval) Upon application of input voltage, the time delay begins. The output

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