Retrofit of Obsolete Applications and Hardware

Designed and built to your needs

SIL4 Systems excels in the safety and non-safety retro-fit market. Contact us about your obsolete equipment and retro fit needs. If you have equipment that is obsolete and no longer supported, we can provide high reliability replacement design often within 8-10 weeks.

Quotations within 5 days

Band Pass Filter

• Can be hard-tuned to any frequency [COTS Frequencies].

• 4550 Hz

• 5525 Hz

• 9800Hz

• Other frequencies available on request

Portable Automated Test Platform

• ATP Tester

• Safety Assured on Vehicle ATP Tester

• Can be customized for any sub-system application.

Retrofit Propulsion Pre-Exciter

• ABB OEM Pre-Exciter Replacement

• 300V; 20A Armature Excitation

• Highly Reliable

• Address legacy field failures

Retrofit Brake Controller

• Friction Brake Controller

• Spin/Slide detection and correction

• Built-in Event Recorder

• Custom data analysis software