Omron Monitoring Relay, 1 Phase, SPST, DIN Rail, 2mA to 500mA, 20.4 → 26.4 V dc, 26.4V ac

ดู Monitoring Relays ทั้งหมด

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RS Stock No.:
111-3090
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.:
K8DT-AS1TD
ผู้ผลิต:
Omron
ค้นหาผลิตภัณฑ์ที่คล้ายกันโดยเลือกคุณลักษณะอย่างน้อยหนึ่งรายการ
เลือกทั้งหมด

Brand

Omron

Product Type

Monitoring Relay

Electrical Phase

1

Contact Configuration

SPST

Mount Type

DIN Rail

Minimum Current Sensed

2mA

Maximum Current Sensed

500mA

Power Consumption

1.8VA

Current Sensitivity

Overcurrent, Undercurrent

Terminal Type

Push-in

IP Rating

IP20

Time Delay

250 ms

Minimum Operating Temperature

-20°C

Supply DC Voltage

20.4 → 26.4 V dc

Relay Contact Current

2, 500mA

Supply AC Voltage

26.4V ac

Maximum Operating Temperature

60°C

Standards/Approvals

EN 60947-5-1, RoHS, UL 60947-5-1

Length

90mm

Height

90mm

Width

17.5mm

Series

K8DT-AS

COO (Country of Origin):
CN

Omron K8DT-AS Series Monitoring Relay, 20.4-26.4V Supply Voltage, 250ms Time Delay - K8DT-AS1TD


This monitoring relay provides compact, DIN-rail-mounted detection and signalling of current deviations in single-phase systems. It operates from low-voltage AC or DC supplies and responds to both excessive and insufficient current to protect equipment and trigger control logic in automation and electrical installations.

Features and Benefits:


• Detects overcurrent and undercurrent to prevent system faults
• Switches SPST contacts for simple on/off control integration
• Accepts 20.4 to 26.4V AC/DC supply for flexible power options
• Senses currents from 2 mA up to 500 mA for fine resolution
• 250 MS time delay to avoid nuisance trips from transients
• Push-in terminals speed installation and wiring changes

Applications


• Suitable for motor load monitoring to identify stalled conditions
• Ideal for conveyor systems requiring phase-limited current supervision
• Used with control panels for process automation alarm signalling
• Can be used for monitoring current draw on single-phase pumps
• Suitable for retrofit protection on small machinery in workshops

What Terminal arrangement is provided for quick wiring?


It uses push-in type connections that allow tool-free conductor insertion and secure contact retention for efficient assembly.

What environmental limits should be observed during installation?


The unit is designed to operate between -20°C and 60°C and has IP20 ingress protection, so it requires an enclosed control cabinet in dusty or humid locations.

How does the relay indicate or act when current thresholds are crossed?


A single-pole single-throw contact changes state when measured current falls below or exceeds set limits, enabling external alarms or PLC inputs to respond.

What mounting method is required for panel integration?


The device clips onto a standard DIN rail for straightforward mounting within electrical enclosures.

What electrical phase and power consumption characteristics apply?


It monitors single-phase systems and consumes 1.8 VA during operation.

Note

K8DT-AS allow use in either overcurrent or undercurrent mode.
K8DT-AW allow overcurrent and undercurrent monitoring simultaneously

Standards

EN 60947-5-1, UL 60947-5-1, IP 20 Terminals

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