DITEK DTK-120/240BK1 Circuit Breaker Surge Protective Device, 150/300V

Keep cameras, access control, monitoring consoles and networking gear online with the DITEK DTK-120/240BK1 circuit breaker surge protective device. Engineered for easy retrofit, this UL-classified surge protection module installs in panels with 1-inch breaker spacing, delivering contractor-friendly installation and immediate protection for security and surveillance systems. With a 50,000A surge current rating and 150/300V operating range, the DTK-120/240BK1 absorbs large transients at the service or branch level to prevent equipment damage and false alarms. An audible alarm with a silence option and a diagnostic LED provide clear visual and audible indications of SPD status, reducing troubleshooting time and maintenance costs. Ideal for low-voltage deployments—CCTV, access control, monitoring, UPS and networking—this DITEK device helps maintain uptime and protects your investment in critical infrastructure. Add it to your next panel upgrade or protect new installs to ensure continuous operation of security and IT systems.

• Protects critical equipment (security, surveillance, networking and low-voltage systems) from damaging transients to reduce downtime and costly replacements
• High-capacity 50,000A surge handling at 150/300V for robust protection of service entrances and branch circuits
• UL-classified circuit breaker-style SPD that installs in standard 1-inch breaker spacing for fast, labor-saving retrofit
• Built-in audible alarm with silence feature plus diagnostic LED for quick status checks and simplified maintenance
• Compatible with common residential and light-commercial load centers for straightforward integration into CCTV, monitoring and UPS power systems