Omron H3RN Series Panel Timer Relay, 1-Contact, 12 to 24 V dc 24V ac, 0.1 min to 100 h, Multifunction-Function, DPST

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RS Stock No.:
177-0103
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.:
H3RN-21-B DC24
ผู้ผลิต:
Omron
ค้นหาผลิตภัณฑ์ที่คล้ายกันโดยเลือกคุณลักษณะอย่างน้อยหนึ่งรายการ
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Brand

Omron

Product Type

Timer Relay

Mount Type

Panel

Function

Multifunction

Time Range

0.1 min to 100 h

Number of Contacts

1

Number of Timer Functions

Multifunction

Switching Voltage

250V ac

Contact Configuration

DPST

IP Rating

IP40

Supply AC Voltage

24V ac

Timing Adjustment

Swedish Pipe

Minimum Operating Temperature

-10°C

Supply DC Voltage

12 to 24 V dc

Contact Current

3A

Terminal Type

Plug-In

Maximum Operating Temperature

55°C

Standards/Approvals

UL, CSA, cULus, IEC 60664-1, EN 61812-1, CE

Width

31.2mm

Length

12.8mm

Height

47.2mm

Series

H3RN

COO (Country of Origin):
JP

Omron H3RN Series Timer Relay, 0.1min-100h Time Range, DPST Contact Configuration - H3RN-21-B DC24


This timer relay is a multifunction timing device designed for panel-front installation in industrial control systems. It provides selectable timing functions for automated sequences, accepts both AC and DC supply options, and is intended for use where Compact plug-in timing control is required.

Features and Benefits:


• DPST contact arrangement enabling independent switching paths • 3A contact rating for moderate load switching • 0.1 min to 100 h adjustable timing for wide process ranges • 12-24 VDC and 24 VAC supply compatibility for flexible integration • Plug-in terminals for Rapid replacement and serviceability • Rated switching up to 250 VAC for common control voltages

Applications


• Suitable for sequencing motors and solenoids in control panels • Ideal for delay timing in conveyor and batching equipment • Used with PLC systems for auxiliary timing functions • Can be used for timed control of lighting and signalling circuits • Suitable for retrofit replacements in existing panel-mount installations

What Terminal arrangement assists Rapid maintenance?


The unit uses a plug-in Terminal style that permits quick removal and replacement without rewiring, reducing downtime during service.

What environmental limits should be observed during installation?


The relay is designed to operate between -10°C and 55°C, so it should be located where ambient temperatures remain within this range.

Which standards relate to electrical safety and compatibility?


It complies with recognised international and national standards including UL and CSA approvals as well as IEC and EN specifications, which informs compatibility with many control systems.

How is timing adjusted for different process durations?


The timing span covers very short to long intervals from 0.1 min up to 100 h and is set using a Swedish-pipe-style adjustment to provide fine control over interval selection.

What mechanical mounting orientation is required on panels?


It is intended for front mounting, enabling the timing control to be accessible from the panel face while the body extends behind the panel.

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