Macromatic COKP10A62 - Overcurrent AC only
Macromatic

COKP10A62


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Overview

The Macromatic COKP10A62 is a plug-in AC overcurrent monitoring relay designed for industrial applications requiring precise current protection. This relay monitors single-phase AC currents with an adjustable pick-up range of 1-10A and a fixed drop-out at 95% of pick-up (or 50-95% adjustable in COKP Series). It features a user-adjustable time delay of 0.1-10 seconds to prevent nuisance tripping from inrush currents. The relay energizes when current exceeds the set pick-up threshold for the specified delay, then de-energizes when current falls below the drop-out threshold. With output contacts rated 10A @ 240V AC or 30V DC, it supports 1/2HP @ 120/240V AC (N.O.) and 1/3HP @ 120/240V AC (N.C.). Input voltage tolerance is +10/-15% of nominal at 50/60Hz with a burden of less than 5VA. The device includes a green LED for input voltage indication and a red LED for relay status. An external current transformer (CT) can extend the monitoring range beyond 10A. The COKP10A62 requires an 8-pin octal socket (sold separately) for installation. Operating temperature range is -28°C to 55°C (-20°F to 131°F). Mechanical life is 10,000,000 operations; full-load electrical life is 100,000 operations. Approved under EN60947-1 and EN60947-5-1 (File #E109466). Ideal for motor overload protection, transformer monitoring, and industrial machinery safety.
  • Adjustable pick-up current range: 1-10A
  • Adjustable time delay: 0.1-10 seconds to prevent nuisance tripping
  • Output contacts: 10A @ 240V AC / 30V DC (1/2HP @ 120/240V AC N.O.)
  • Drop-out: 50-95% of pick-up (adjustable) or fixed at 95%
  • Requires 8-pin octal socket (sold separately); external CT extends range
  • Green LED: input voltage; red LED: relay status
  • Operating temperature: -28°C to 55°C (-20°F to 131°F)
  • Approved to EN60947-1 and EN60947-5-1 (File #E109466)
Undercurrent Only

CUH20A8AD

Undercurrent Only

How to Install the COKP10A62 Current Sensing Relay

This guide provides step-by-step instructions for installing and wiring the COKP10A62 Current Sensing Relay in a suitable enclosure.

Estimated time: 45m

Tools needed:

Screwdriver, Wire strippers, Multimeter

Supplies needed:

Mounting screws, 8 pin octal socket (e.g., Macromatic 70169-D), Terminal connectors

  1. Mount the octal socket

    Install the appropriate 8 pin octal socket in a suitable enclosure, ensuring it is securely fastened.

  2. Connect the wiring

    Using #12-22 solid or stranded copper or copper-clad aluminum conductors, connect the wiring to the socket, matching the terminal numbers to the wiring diagram. Ensure a terminal tightening torque of 12 in-lbs.

  3. Verify connections

    Before powering on, double-check all connections against the wiring diagram to ensure accuracy and safety. Remove all power supplying the equipment before connecting or disconnecting wiring.

Frequently Asked Questions about Macromatic

What certifications and standards do Macromatic products comply with?

Macromatic products are certified with ULus and cULus approvals for use in the United States and Canada, covering a wide range of industrial control products. Their product line includes UL-listed devices for various voltage ranges (120V, 208-277V) and NEMA enclosure types, ensuring compliance with North American industrial standards.

What industries and applications are Macromatic products used for?

Macromatic products are used across multiple critical industrial sectors, including water/wastewater, pump and motor control, irrigation, oil and gas, HVACR, material handling, lifts and elevators, and other systems requiring process control and protection. Their industrial control products deliver high-quality monitoring, control, and protection solutions for electrical processes and equipment fault protection.

What technical support does Macromatic offer?

Macromatic offers comprehensive technical support through multiple channels, including a dedicated online Technical Resource Center at macromatic.com/technical-support and direct contact with technical advisors. Their support includes engineering assistance for unique applications, help with product selection, custom-engineered solutions, and troubleshooting for product setup. Customers can reach out via their website contact form or contact their technical team directly to get expert guidance on their industrial control products.

What are the main product lines offered by Macromatic?

Macromatic offers a comprehensive range of industrial control, monitoring, and protection products across multiple product lines, including Alternating Relays, Current Sensing Relays, General Purpose Relays, Intrinsically Safe Barrier Relays, Liquid Level Control Relays, Voltage Monitor Relays, and Time Delay Relays. These products serve critical applications in industries such as water/wastewater, pump and motor control, irrigation, oil and gas, HVACR, material handling, and lift systems.

What are the key features of Macromatic products?

Macromatic products feature innovative industrial control solutions with key characteristics including precise time-based control, compact design, and comprehensive protection capabilities. Their product lines cover voltage monitoring, time delay relays, and control products for multiple industries like water/wastewater, pump and motor control, oil and gas, and HVACR. Standout features include space-saving designs, multiple time delay functions, voltage band protection, and customizable solutions with quick prototype turnaround.

What accessories are available for Macromatic products?

Macromatic offers a comprehensive line of accessories for their industrial control products, including industry-standard sockets (8-pin, 11-pin octal, and 12-pin square), back-mounted sockets for panel mounting, retainers, hold-down springs, terminal covers, and replacement terminals. These accessories are designed to simplify relay installation, replacement, and provide additional mounting and protection options for Macromatic products.

How are Macromatic products typically installed?

Macromatic products are typically installed using industry-standard 8-pin and 11-pin octal sockets, as well as 12-pin square sockets that simplify relay installation. These sockets allow for easy mounting, with back-mounted socket options enabling flange-style enclosures to be panel mounted. Additional installation accessories like retainers, hold-down springs, terminal covers, and replacement terminals are available to support precise and secure product installation.

What communication protocols do Macromatic products support?

Macromatic communication modules support multiple industrial communication protocols, including Modbus RTU, Modbus TCP/IP, PROFIBUS, PROFINET, DeviceNet, EtherNet/IP, and IEC 61850. These protocols enable flexible network integration across industrial automation systems, providing comprehensive connectivity and communication capabilities for diverse industrial applications.

What environmental ratings do Macromatic products have?

Macromatic products feature robust environmental ratings across multiple NEMA and IP standards. Most product lines offer NEMA Type 3R, 4, and 4X ratings, with specific models providing protection against dust, water, and corrosion for both indoor and outdoor applications. Select product series like DS20, DS30, DR30, and DR50 come standard as 3R with optional 4X upgrades available.