Motor Protective Relay | K2CM-ILS | Omron
OMRON K2CM-ILS Motor Protective Relay offers versatile protection with over-current, open-phase, and reverse-phase functions. Its space-saving design makes it ideal for 3-phase induction motors, ensuring reliability and customization for diverse applications. A solid choice for effective and efficient motor control in industrial settings.
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Brand: Omron
Model: K2CM-ILS
Type: Motor Protective Relay
Introduction:
The K2CM-ILS, An advanced Motor Protective Relay, tailored for safeguarding 3-phase induction motors and their loads, is provided by the renowned OMRON brand in the form of the K2CM-ILS. Its design allows users to select from three distinctive operating functions—overcurrent, open-phase, and reverse-phase—providing adaptability across various operational scenarios for broad application.
A notable feature of the K2CM-ILS is its capability to choose and blend operating functions encompassing overcurrent, open-phase, and reverse-phase. This flexibility allows precise customization, adapting the relay to specific motor protection needs. Checking the circuit and output relay operation is simplified through an easily operated test button, ensuring optimal functionality and facilitating routine checks. Furthermore, the K2CM-ILS is characterized by a space-efficient, integrated construction, making it ideal for applications with spatial constraints. When utilized with an inverter, its operating conditions hinge on factors such as load wiring length, inverter carrier frequency, basic frequency, and load conditions.
The K2CM-ILS is equipped with robust specifications, establishing it as a dependable choice for motor protection. The motor circuit supply voltage ranges from 200/220 VAC to 400/440 VAC at 50/60 Hz, while the control circuit supply voltage covers 100/110/120 VAC to 400/440 VAC at 50/60 Hz. The input circuit supports an operating current range of 2 to 160 A (with a single pass). Power consumption is around 3 VA in standby and 5 VA in the operating state. The overcurrent function operates at 115 ±10% of the setting value, and its operating time setting range follows an inverse type inverse time pattern during startup and operation. The case color is specified as Munsell 5Y7/12. These specifications affirm that the K2CM-ILS consistently delivers performance and reliable protection for 3-phase induction motors.
| Specification | Detail |
|---|---|
| Supply Voltage of Motor Circuit | 200/220, 400/440 VAC, 50/60 Hz |
| Supply Voltage of Control Circuit | 100/110/120, 200/220/240, 400/440 VAC, 50/60 Hz |
| Insulation Breakdown of Output Contact | 500 VAC |
| Operating Voltage/Current of Output Contact | NO contact: 120 VAC/2 A, 240 VAC/1 A, 440 VAC/0.5 A, 110 VDC/0.2 A, 220 VDC/0.1 A NC contact: 120 VAC/5 A, 240 VAC/2 A, 440 VAC/1 A, 110 VDC/0.2 A, 220 VDC/0.1 A |
| Contact Form of Output Contact | Current reverse-phase detection models: SPST-NO + SPST-NC Voltage reverse-phase detection models: SPDT |
| Operating Current Range of Input Circuit | 2 to 160 A (Number of passes: 1) |
| Operating Voltage Range of Control Circuit | 85% to 110% of rated voltage, but operates normally at 50% of open-phase supply voltage |
| Operating Frequency Range of Control Circuit | 95% to 105% of rated frequency |
| Power Consumption | Approx. 3 VA (in standby state); 5 VA (in operating state) |
| Overcurrent Function Operating Value | 115 ±10% of the setting value |
| Overcurrent Function Operating Time Setting Range | Inverse Type Inverse time both at startup and during operation: Timer scale × 1 (s) at 600% overload Timer scale × 3 (s) at 200% overload |
| Case Color | Munsell 5Y7/1 |
| Overcurrent Function Operating Time Characteristics | Inverse type: ±10% of maximum setting value (at 600% overload) Instantaneous type: ±20% of maximum setting value (at 140% overcurrent and at starting) |
| Overcurrent Function Resetting Value | 100% min. of the setting value |
| Overcurrent Function Start-up Operating Value | Inverse type: Not applicable Instantaneous type: 30% max. of the setting value |
| Open-phase Operating Value | 85% max. of the set current value (at open-phase) |
| Open-phase Operating Time | 2 s max. (at overcurrent operating value) |
| Reverse-phase Operating Value | 50% max. of the current value (80% max. of the operating voltage) |
| Reverse-phase Operating Time | 1 s max. (at overcurrent operating value) |
| Imbalance Operating Value | 85% of the set current value |
| Current Imbalance Factor | High: 35 ±10%; Low: 60% min. (at overcurrent operating value) |
