![[OMRON] — K8AK-AS Single-phase Current Relay (Overcurrent/Undercurrent, 2mA~200A AC/DC)](https://img.prosourcemro.com/2026/05/001-429-1024x768.png)
Monitoring Relays
Omron
[OMRON] — K8AK-AS Single-phase Current Relay (Overcurrent/Undercurrent, 2mA~200A AC/DC)
Family ID: OMRON-K8AK-AS
OMRON K8AK-AS Series single-phase current relay for industrial facilities and equipment. Overcurrent or undercurrent monitoring. Relay output. K8AK-AS1: 2mA~500mA. K8AK-AS2: 0.1A~8A. K8AK-AS3: 10~200A AC (requires K8AC-CT200L CT). Power supply: 24 VAC/DC or 100~240 VAC.
7 product codes available in this family
Product Codes & Specifications
| Product Code | Description | Brand | Spec | ||
|---|---|---|---|---|---|
| K8AK-AS1 24 VAC/DC | K8AK-AS AS1 24 VAC/DC | OMRON | Type: Single-phase Current Relay | Setting Range: 2~20mA / 10~100mA / 50~500mA AC/DC | Power Supply: 24 VAC/DC | Output: Relay | Mode: Overcurrent or Undercurrent selectable | ||
| K8AK-AS1 100-240 VAC | K8AK-AS AS1 100~240 VAC | OMRON | Type: Single-phase Current Relay | Setting Range: 2~20mA / 10~100mA / 50~500mA AC/DC | Power Supply: 100~240 VAC | Output: Relay | Mode: Overcurrent or Undercurrent selectable | ||
| K8AK-AS2 24 VAC/DC | K8AK-AS AS2 24 VAC/DC | OMRON | Type: Single-phase Current Relay | Setting Range: 0.1~1A / 0.5~5A / 0.8~8A AC/DC | Power Supply: 24 VAC/DC | Output: Relay | Mode: Overcurrent or Undercurrent selectable | Note: Commercially available CT (0~1A or 0~5A) compatible | ||
| K8AK-AS2 100-240 VAC | K8AK-AS AS2 100~240 VAC | OMRON | Type: Single-phase Current Relay | Setting Range: 0.1~1A / 0.5~5A / 0.8~8A AC/DC | Power Supply: 100~240 VAC | Output: Relay | Mode: Overcurrent or Undercurrent selectable | Note: Commercially available CT compatible | ||
| K8AK-AS3 24 VAC/DC | K8AK-AS AS3 24 VAC/DC | OMRON | Type: Single-phase Current Relay | Setting Range: 10~100A / 20~200A AC | Power Supply: 24 VAC/DC | Output: Relay | Mode: Overcurrent or Undercurrent selectable | Note: Requires K8AC-CT200L CT (included in this family) | ||
| K8AK-AS3 100-240 VAC | K8AK-AS AS3 100~240 VAC | OMRON | Type: Single-phase Current Relay | Setting Range: 10~100A / 20~200A AC | Power Supply: 100~240 VAC | Output: Relay | Mode: Overcurrent or Undercurrent selectable | Note: Requires K8AC-CT200L CT (included in this family) | ||
| K8AC-CT200L | Current Transformer for K8AK-AS3 10~200A | OMRON | Type: Current Transformer (CT) | Input Range: 10~100A AC / 20~200A AC | Compatible Relay: K8AK-AS3 (required, direct input not possible) |
