Setting range | Power supply voltage | Output | Order code |
2 to 20 mA AC/DC, 10 to 100 mA AC/DC, 50 to 500 mA AC/DC | 24 VAC/DC | Relay: SPDT contact output | K8DT-AS1CD |
Transistor: Open collector | K8DT-AS1TD |
100 to 240 VAC | Relay: SPDT contact output | K8DT-AS1CA |
Transistor: Open collector | K8DT-AS1TA |
0.1 to 1 A AC/DC, 0.5 to 5 A AC/DC | 24 VAC/DC | Relay: SPDT contact output | K8DT-AS2CD |
Transistor: Open collector | K8DT-AS2TD |
100 to 240 VAC | Relay: SPDT contact output | K8DT-AS2CA |
Transistor: Open collector | K8DT-AS2TA |
10 to 100 A AC , 20 to 200 A AC 1 | 24 VAC/DC | Relay: SPDT contact output | K8DT-AS3CD |
Transistor: Open collector | K8DT-AS3TD |
100 to 240 VAC | Relay: SPDT contact output | K8DT-AS3CA |
Transistor: Open collector | K8DT-AS3TA |
Item | K8DT-AS1 | K8DT-AS2 | K8DT-AS3 |
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. |
Operate (SV) | Operating value setting range | 10% to 100% of the maximum value of the setting range 2 to 20 mA AC/DC 10 to 100 mA AC/DC 50 to 500 mA AC/DC | 10% to 100% of the maximum value of the setting range 0.1 to 1 A AC/DC (Compatible with commercially available CTs.) 0.5 to 5 A AC/DC (Compatible with commercially available CTs.) | 10% to 100% of the maximum value of the setting range 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 (HYS) | Hysteresis | 5% to 50% of operating value |
Resetting method | Manual reset/automatic reset (switchable) |
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.) |
Indicators | Power (PWR): Green, Output (OUT): Yellow, Alarm outputs (ALM): Red |
Output form | Relay: SPDT contact output Transistor: Open collector Switchable between normally open and normally closed with a DIP switch setting. |
Output relays ratings | Resistive load | 250 VAC 5 A or 30 VDC 5 A |
Inductive load | 250 VAC 1 A, 48 VDC 0.2 A |
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 operation |
Transistor output ratings | Contact form | SPST-NO (Open collector) |
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) |
Case material | PC, UL 94 V-0 |
Weight | Approx. 100 g |
Size in mm (H × W × D) | 90×17.5×90 |
Operating voltage range | 85% to 110% of power supply voltage |
Rated power supply frequency | 50/60 Hz ±5 Hz |
Input frequency range | DC input or AC input (45 to 65 Hz) | AC input (45 to 65 Hz) |
Overload capacity | Continuous input at 120% of maximum input, 1 s at 150% | Continuous input at 120%, 30 s at 200%, and 1 s at 600% with an OMRON CT (K8AC-CT200L) |
Repeat error | Operating value | ±0.5% full scale (at 25°C and 65% humidity, rated power supply voltage) |
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 (GB14048.5) |
Degree of protection | Terminals: IP20 |