
Allen Bradley 1747-KY1 Replacement Key Set for SLC 500 Processors
Product Summary
The Allen Bradley 1747-KY1 key set provides essential replacement keys for SLC 500 series processors. This component supports SLC 5/03, 5/04, and 5/05 models. It includes two keys for redundancy and easy access. The set facilitates secure controller installation and programming in industrial environments.
Product Procurement & Buyer Guide
Procurement managers require precise component selection for legacy systems. The 1747-KY1 key set directly addresses this need for SLC 500 platforms. This set includes two dedicated keys for controller installation. You must insert these keys after the host controller is installed. This ensures a secure physical lock for programming access.
The 1747-KY1 operates reliably within a wide temperature range. It functions effectively from 32 to 140 degrees Celsius. This range covers typical industrial control cabinet conditions. The storage temperature tolerance is even broader. It withstands storage from -40 to 185 degrees Fahrenheit. This makes the keys versatile for varied global environments.

Environmental resilience is a key purchasing factor for this component. The 1747-KY1 maintains full operational integrity in non-condensing humidity. It supports relative humidity levels from 5% to 95%. This specification ensures reliable function in humid manufacturing floors. Engineers can trust this key set for long-term use.
Application engineers value the direct compatibility of this hardware. The 1747-KY1 works seamlessly with three major processor models. It supports the SLC 5/03, the SLC 5/04, and the SLC 5/05. This broad compatibility simplifies inventory management for maintenance teams. You only need one part number for multiple controller types.
The primary function of this key set is straightforward and critical. It allows technicians to install and program compatible controllers. The two keys provide a backup in case one is lost. This redundancy reduces potential downtime during system setup. It is a small but vital component for operational security.
Maintenance, Troubleshooting & Longevity Protocols

Proper handling of the 1747-KY1 keys extends their service life significantly. Always store the keys in a clean, dry environment. The storage temperature range is -40 to 185 degrees Fahrenheit. Avoid exposing the keys to condensing moisture or corrosive chemicals. This simple care prevents physical degradation of the metal.
During installation, follow the specific insertion requirement strictly. Insert the key only after the host controller is physically installed. This prevents damage to the key or the controller socket. Forcing the key into an unpowered or incorrectly seated unit causes wear. Always verify the controller model before using the key.
Periodically inspect the key for any signs of wear or bending. The metal should not show cracks or deformation. If a key becomes difficult to insert, stop immediately. Check for obstructions in the controller key slot. Replace a damaged key promptly to avoid equipment lockout.
The 1747-KY1 requires no routine calibration or software updates. It is a purely mechanical access component. Its longevity depends entirely on physical condition and storage. In typical controlled environments, these keys last for many years. Keep the spare key in a secure, labeled location for emergencies.

Logistics & Standard Packaging Details
- One set containing two (2) replacement keys
- Standard anti-static packaging for safe transport
- Product identification label with part number 1747-KY1
- Express delivery shipping is available via FedEx, UPS, and DHL