• WiFi module (external) optional
  • TCP/IP and RS-485 communication
  • Built-in auxiliary input and output
  • Advanced access control functions
  • 1-door, 2-door, 4-door models
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  • Overview
  • Function
  • Specification
  • Configuration
  • Package
  • Download

ZKAccess Systems are built on flexible, open technology to provide management, real-time monitoring , and control of your access control system-all from a browser, with no additional software to install.


Our secure Web-hosted infrastructure and centralized online administration reduce your IT costs and allow you to easily manage all of your access points in a single location. C3 series' versatile design features take care of present and future needs with ease and efficiency. It is one of the most rugged and reliable controllers on the market, with a multitude of built-in features.


The C3 series control panle can communicate at 38.4 Kbps via RS-485 configuration or Ethernet TCP/IP networks. It can store up to 30,000 cardholders. SDK (Software Development Kit) is available for the customer to integrate the controller into existing access control software or to develop new software.

Module of wifi

Through the external wifi module, the controller can entry the structured Ethernet Network easily. With its password verification, the system provides the best available wireless data security.


C3 controllers can be installed easily on your network and support both TCP/IP and RS-485 communications. Auto-discovery tool allows setting and modification of network parameters directly and easily.

Choice of Readers

Support full range of card readers. ZK KR-Series readers are stylish and waterproof. C3 supports any wiegand-output reader, including HID Prox,iClass, and XceedID Multi-Technology.


Support up to 30,000 badge users and store up to 100,000 events and transactions. Data is preserved if power is lost. Controller continues to operate if network connection is interrupted

Lowest Total Cost of Ownership

Save cost. C3 controller firmwares can be upgraded without any advanced tools. New features can extend and expand the value of your investment.


C3 controllers come in 3 sizes to suit project needs and reduce the cost of unused capacity.1-door, 2-door, and 4-door models can be mixed and matched in an optimized system architecture, devices or gate controllers.

More than Door Control

Access additional control and interface.After programming, auxiliary relays can be
functioned as lights, alarms and intrusion detection panels. Extra locking devices or gate controllers can be accessed.

Built-In Advanced Access Control

Anti-Passback, First-Card Opening, Multi-Card Opening, Duress Password Entry, and Auxilary Input/ Output linkages are built into controller firmware.

For Software Developers

Free SDK is available for integrators and OEM’s to integrate the C3 controller with their or existing security or personnel management applications.Upon request, ZK can customize C3 firmware to meet any customer requirements.

Technical Specifications
  • Number of Doors Controlled

    1 Door

  • Number of Readers Supported


  • Types of Readers Supported

    26-bit Wiegand, others upon request

  • Number of Inputs

    2 (Exit Device and Door Status, AUX)

  • Number of Outputs

    2 (1-From C Relay for Lock and 1-Form C Relay for Aux Output)

  • Card Holders Capacity


  • Log Events Capacity


  • Weight

    7.4lbs (3.35kg)

  • Communication

    TCP/IP and RS-485

  • Enclosure

    Powder Coated Aluminium

  • Mounting

    Wall Mount

  • Recommended Power Supply

    12V DC, 1.5A

  • Dimensions (Bundle Only)

    15in.×3.15in.×11in. 380mm(L) X 80mm(W) X 280mm(H)

  • Dimensions ( Board Only)

    6.3in.×4.17in. (160mm×106mm)

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    Installation Guide
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    Screw Driver
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    Screws and Holders
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  • dwnload_1
    C3-400 Installation Instructions and Connection Guide V1.2

    0.71MB Installation Guide

    16-03-2016 Download
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    C3 Series

    2.22MB Data Sheet

    30-06-2016 Download
  • dwnload_1
    C3 Series User Manual V1.2

    3.0MB User Manual

    27-07-2015 Download

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