# Johnson Controls Cardkey S321 DIN 27 4954 7 - Access Control

The **Johnson Controls Cardkey S321 DIN 27 4954 7** is a robust two-door controller, designed for superior security and access management within industrial and commercial settings. This device is engineered to ensure controlled entry to restricted zones, offering peace of mind through reliable performance.

This access control system features the model **S321-din** and part number **27-4954-7**, ensuring easy integration with your current security infrastructure. Operating at 24 Vdc and drawing 1.5A, the **Cardkey S321** exemplifies efficiency and dependability. The inclusion of Ry1 1218 Rev. C technology further enhances operational smoothness and security protocols. Weighing just 450 grams, this compact unit is both easy to install and maintain.

Key Features:

-   **Enhanced Security:** Ensures only authorized personnel access restricted areas.
-   **Seamless Integration:** Designed to work with existing security systems.
-   **Efficient Operation:** Operates at 24 Vdc with minimal power consumption.
-   **Reliable Performance:** Incorporates Ry1 1218 Rev. C technology for smooth operation.

Specifications:

-   Model Number: S321-din
-   Part Number: 27-4954-7
-   Operating Voltage: 24 Vdc
-   Current Draw: 1.5A
-   Weight: 450 grams

The **Johnson Controls Cardkey S321 DIN 27 4954 7** provides reliable access control for various industrial applications. Trust in its performance to safeguard your facilities. Upgrade your security with **Ram Automations** and ensure optimal protection for your assets. For any inquiries, contact us at [info@ramautomations.com](mailto:info@ramautomations.com)

## Details

- **Price:** 999.0 USD
- **Vendor:** Ram Automations
- **Type:** Security Systems > Access Control > Door Controllers
- **Tags:** 27-4954-7, access control, Cardkey S321, door controller, industrial security, Johnson Controls, S321 DIN, security system

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| New | 999.00 USD | In stock |

## Images

- Johnson Controls Cardkey S321 DIN 27 4954 7 - Access Control-Ram Automations

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> Source: [Ram Automations](https://ramautomations.com/products/johnson-controls-cardkey-s321-din)
> Updated: 2026-10-03