Product images are provided for reference and may not represent the exact model, configuration, or included components.

No Bots, Just Experts

Questions about this product? Free pre-sales support from a senior specialist — product questions, compatibility checks, BOM quotes, price confirmation — typically answered within one business day. Need camera placement or system design work? Engineering time is $175 per hour (qty 1 = 1 hour). Hardware buyers get up to one hour ($175) credited back on their order.

Description

Kantech EK-403 Expansion Kit with KT-400 Controller

The Kantech EK-403 Expansion Kit delivers a scalable, modular solution for extending access control capabilities across growing security infrastructures. This complete kit combines the KT-400 controller with P325XSF expansion components, enabling organizations to add access points and enhance system functionality without requiring a complete system overhaul. Built on proven Kantech technology, the EK-403 is engineered for seamless integration with existing deployments.

Key Features

  • KT-400 controller for centralized access management and multi-door coordination
  • P325XSF expansion component for system scalability
  • Complete deployment-ready kit reduces installation complexity
  • Modular design supports incremental system growth
  • Compatible with existing Kantech infrastructure
  • Industry-standard access control reliability

System Applications

  • Multi-door access control expansion for existing installations
  • Enterprise security infrastructure upgrades and modernization
  • Facility-wide access management system expansion
  • Campus and multi-building security deployments
  • Integration with legacy Kantech access control systems

Technical Highlights

The KT-400 controller serves as the operational backbone of this expansion kit, providing centralized management of multiple access points and door control functions. The included P325XSF component facilitates seamless integration into existing Kantech environments, enabling system expansion without compatibility concerns. This architecture supports organizations managing access across multiple locations or requiring phased security infrastructure upgrades. The kit's modular design allows IT and security teams to add capacity incrementally, matching system growth to organizational needs while maintaining operational continuity.

For organizations already invested in Kantech access control technology, the EK-403 Expansion Kit provides a cost-effective pathway to system enhancement. By leveraging compatible components and proven controller architecture, deployment timelines remain predictable and support requirements align with existing Kantech ecosystems. Choose the EK-403 when expansion reliability and vendor consistency are priorities.

Specifications
Weight: 23.05 lb
Country of Origin: CA
Door Capacity: 00 Door
Reader Type: Proximity
Communication: TCP/IP; RS-485; RS-232
Product Type: Controller
Q&A
Reviews
Have Questions?

Kantech EK-403 Expansion Kit with KT-400 Controller

$4,588.00
$3,293.99

RELATED PRODUCTS

Save $1,297.01
Kantech EK-400-SCM Expansion Kit Controller
Add to Cart The item has been added

Kantech EK-400-SCM

Kantech EK-400-SCM Expansion Kit Controller

4-door controller with multiplexing module for enterprise system expansion

  • KT-400 expansion kit with KT-MUL-SC multiplexer
  • 4-door controller + smart-card + proximity reader support
  • Wiegand + TCP/IP + RS-485 + RS-232 + 12VDC
Usually Ships in 2-3 Weeks Free shipping over $499
$4,599.00 $3,301.99 Save $1,297.01
The item has been added Add to quote
$4,599.00 $3,301.99 Save $1,297.01
Save $1,297.01 Add to cart Add to quote
Save $1,401.01
Kantech EK-400-MTM Expansion Kit Controller
Add to Cart The item has been added

Kantech EK-400-MTM

Kantech EK-400-MTM Expansion Kit Controller

Scale KT-400 systems with modular expansion—add readers and doors without replacing core

  • KT-400 expansion kit for multi-door access control
  • Multi-tech reader: DESFire + MIFARE + HID + NFC + Prox
  • RS-485 + AES-128 for enterprise-grade encryption
Usually Ships in 2-3 Weeks Free shipping over $499
$4,907.00 $3,505.99 Save $1,401.01
The item has been added Add to quote
$4,907.00 $3,505.99 Save $1,401.01
Save $1,401.01 Add to cart Add to quote
Save $492.01
Kantech KT-1-M Expansion Kit with Controller - EK-1M-SCM
Add to Cart The item has been added

Kantech EK-1M-SCM

Kantech KT-1-M Expansion Kit with Controller - EK-1M-SCM

12-door expandable controller kit with card/keypad support

  • KT-1-M expansion kit for adding doors to existing site
  • 12VDC controller with proximity reader bundled
  • Scales access control without forklift upgrade
Usually Ships in 2-3 Weeks Free shipping over $499
$1,586.00 $1,093.99 Save $492.01
The item has been added Add to quote
$1,586.00 $1,093.99 Save $492.01
Save $492.01 Add to cart Add to quote
Save $492.01
Kantech EK-1M-SCSG Expansion Kit KT-1-M Controller
Add to Cart The item has been added

Kantech EK-1M-SCSG

Kantech EK-1M-SCSG Expansion Kit KT-1-M Controller

4-door expansion kit with KT-1M controller and I/O module

  • KT-1-M master controller with KT-SG-SC expansion module
  • Multi-tech reader: MIFARE, HID, NFC, 125kHz prox
  • RS-485 + Wiegand integration with existing Kantech systems
Usually Ships in 2-3 Weeks Free shipping over $499
$1,586.00 $1,093.99 Save $492.01
The item has been added Add to quote
$1,586.00 $1,093.99 Save $492.01
Save $492.01 Add to cart Add to quote

System Design, Deployment & Technical Support

Support services and planning resources for commercial surveillance, access control, and infrastructure deployments.

Fixed scope • Fixed price

System Design Assistance

  • Get help validating product compatibility
  • Coverage requirements
  • Storage planning and deployment architecture before you buy.
Request Design Help

Deployment & Configuration Support

  • Access fixed-scope support for rollout planning
  • User setup guidance
  • Migration and system standardization across single-site or multi-site deployments
View Support Services

Guides, Tools & Calculators

  • PoE requirements
  • Storage retention
  • Camera selection and deployment methodology
Open Technical Resources