K8DT-AS Single-phase Current Relay/Specifications | OMRON Industrial Automation Singapore

Model	Range *1	Connection terminal	Setting range	Input impedance	Input type	Overload capacity
K8DT-AS1[][]	20 mA AC/DC	I1-COM	2 to 20 mA AC/DC	Approx. 5 Ω	Direct input	Continuous input at 120% of maximum input. 1 s at 150%
	100 mA AC/DC	I2-COM	10 to 100 mA AC/DC	Approx. 1 Ω	Direct input
	500 mA AC/DC	I3-COM	50 to 500 mA AC/DC	Approx. 0.2 Ω	Direct input
K8DT-AS2[][]	1 A AC/DC	I1-COM	0.1 to 1 A AC/DC	Approx. 0.12 Ω (Load: 0.5 VA)	Direct input or commercially available CT
K8DT-AS2[][]	5 A AC/DC	I2-COM	0.5 to 5 A AC/DC	Approx. 0.02 Ω (Load: 1.5 VA)	Direct input or commercially available CT
K8DT-AS3[][]	100 A AC	I2-COM	10 to 100 A AC *2	---	OMRON CT	Continuous input at 120% with an OMRON CT(K8AC-CT200L). 30 s at 200% 1 s at 600% * CT capacity on primary side.
K8DT-AS3[][]	200 A AC	I3-COM	20 to 200 A AC *2	---	OMRON CT

*1. The range is selected using connected terminals.
*2. The K8DT-AS3 is designed to be used in combination with an OMRON K8AC-CT200L Current Transformer (CT).
(Direct input is not possible.)

Power supply voltage	K8DT-AS[][]D: 24 VAC 50/60 Hz, 24 VDC K8DT-AS[][]A: 100 to 240 VAC 50/60 Hz
Power consumption	24 VAC/DC: 1.8 VA/1 W max. 100 to 240 VAC: 2.5 VA max.
Rated insulation voltage	600 VAC
Operating value setting range (SV)	10% to 100% of the maximum value of the setting range K8DT-AS1: 2 to 20 mA AC/DC 10 to 100 mA AC/DC 50 to 500 mA AC/DC K8DT-AS2: 0.1 to 1 A AC/DC (Compatible withcommercially available CTs.) 0.5 to 5 A AC/DC (Compatible withcommercially available CTs.) K8DT-AS3: When used with the OMRON CT(K8AC-CT200L). 10 to 100 A AC 20 to 200 A AC
Operating value	100% operation at set value
Reset value setting range (HYS)	5% to 50% of operating value
Reset method	Manual reset/automatic reset (switchable) Note: Manual reset: Turn OFF power supply for 1 s or longer.
Operating time setting range (T)	0.1 to 30 s
Startup lock time setting range (LOCK)	0 to 30 s (The startup lock timer starts when the input has reached approximately 30% or more of the set value.) Note: Enabled only for overcurrent operation.
LED Indicators	Power (PWR): Green, Output (OUT): Yellow, Alarm outputs (ALM): Red
Input impedance	Refer to Input Range on catalog.
Output form	Relay Output: SPDT contact Transistor Output: 1 Switchable between normally open and normally closed with a DIP switch setting.
Output relay ratings	Rated load: 250 VAC 5 A or 30 VDC 5 A (resistive load), 250 VAC 1 A (inductive load), 48 VDC 0.2 A (inductive load) Minimum load: 5 VDC, 10 mA (reference values) Mechanical life: 10 million operations min. Electrical life: 5 A at 250 VAC or 30 VDC: 50,000 operations 3 A at 250 VAC or 30 VDC:100,000 operations
Transistor output ratings	Rated voltage: 24 VDC (maximum voltage: 26.4 VDC) Maximum current: 50 mA DC
Ambient operating temperature	-20 to 60°C (with no condensation or icing)
Storage temperature	-25 to 65°C (with no condensation or icing)
Ambient operating humidity	25% to 85% RH (with no condensation)
Storage humidity	25% to 85% RH (with no condensation)
Altitude	2,000 m max.
Applicable wires	Stranded wires, solid wires, or ferrules
Applicable wire size	0.25 to 1.5 mm² (AWG24 to AWG16)
Wire insertion force	8 N max. for AWG20 wire
Screwdriver insertion force	15 N max.
Wire stripping length	8 mm
Ferrule length	8 mm
Recommended flatblade screwdriver	XW4Z-00B (Omron) SZF 0.4 × 2.5 (Phoenix Contact) 210-719 (Wago) SDI 0.4 × 2.5 × 75 (Weidmuller)
Current capacity	10 A (per pole)
Number of insertions	50 times
Case color	N1.5
Case material	PC, UL 94 V-0
Weight	Approx. 100 g
Mounting	Mounts to DIN Track, or screw mounting
Dimensions	17.5 × 90 × 90 mm (W×H×D)

Allowable operating voltage range		85% to 110% of power supply voltage
Allowable operating frequency range		50/60 Hz ±5 Hz
Input frequency range		K8DT-AS1 and K8DT-AS2:DC input or AC input (45 to 65 Hz) K8DT-AS3: AC input (45 to 65 Hz)
Overload capacity		K8DT-AS1 and K8DT-AS2: Continuous input at 120% of maximum input, 1 s at 150% K8DT-AS3: Continuous input at 120%, 30 s at 200%, and 1 s at 600% with an OMRON CT (K8AC-CT200L) Note: Overload capacity of primary side of CT.
Repeat error	Operating value	±0.5% full scale (at 25°C and 65% humidity, rated power supply voltage)
Repeat error	Operating time	±50 ms (at 25°C and 65% humidity, rated power supply voltage)
Applicable standards	Conforming standards	EN 60947-5-1 Installation environment (pollution level 2, Overvoltage category III)
	EMC	EN 60947-5-1
	Safety standards	UL 60947-5-1 (Listing), Korean Radio Waves Act (Act 10564), CCC (GB/T 14048.5) *
Insulation resistance		20 MΩ min. Between external terminals and case Between power supply terminals and input terminals Between power supply terminals and output terminals Between input terminals and output terminals
Dielectric strength		2,000 VAC for one minute Between external terminals and case Between power supply terminals and input terminals Between power supply terminals and output terminals Between input terminals and output terminals
Impulse withstand voltage		6 kV (between live terminals and exposed, non-charged metal parts)
Noise immunity		Square-wave noise of 1-μs/100-ns pulse width with 1-ns rise time 100 to 240 VAC: 1,500 V power supply terminal common/normal mode 24 VAC: 1,500 V power supply terminal common/normal mode 24 VDC: 480 V power supply terminal common
Vibration resistance		Frequency 10 to 55 Hz, 0.35-mm single amplitude 10 sweeps of 5 min each in X, Y, and Z directions
Shock resistance		100 m/s², 3 times each in 6 directions along 3 axes
Degree of protection		Terminals: IP20

* K8DT-AS[]TD is not applied.

K8DT-AS

Our Value Design Products Increase the Value of Your Control Panels. Detect errors in motors and other equipment through current changes. Use in either overcurrent or undercurrent mode.

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