Safety Notice

WARNING
hazard of electric shock Do not use MasterPacT MTZ circuit breakers with MicroLogic Active control units: On power systems with IT grounding system with voltage above 600 Vac. On power systems with other grounding system with voltage above 690 Vac. Failure to follow these instructions can result in death, serious injury, or equipment damage.

CAUTION
hazard of burns Apply appropriate personal protective equipment (PPE) when the MasterPacT MTZ circuit breaker ambient temperature is above 50 °C (122 °F). Failure to follow these instructions can result in injury or equipment damage.

WARNING
POTENTIAL COMPROMISE OF SYSTEM AVAILABILITY, INTEGRITY, AND CONFIDENTIALITY Change default PIN codes and passwords at first use to help prevent unauthorized access to device settings, controls, and information. Disable unused ports/services and default accounts to help minimize pathways for malicious attackers. Place networked devices behind multiple layers of cyber defenses (such as firewalls, network segmentation, and network intrusion detection and protection). Use cybersecurity best practices (for example, least privilege, separation of duties) to help prevent unauthorized exposure, loss, modification of data and logs, or interruption of services. Failure to follow these instructions can result in death, serious injury, or equipment damage.

WARNING

POTENTIAL COMPROMISE OF SYSTEM AVAILABILITY, INTEGRITY, AND CONFIDENTIALITY

Change default PIN codes and passwords at first use to help prevent unauthorized access to device settings, controls, and information.
Disable unused ports/services and default accounts to help minimize pathways for malicious attackers.
Place networked devices behind multiple layers of cyber defenses (such as firewalls, network segmentation, and network intrusion detection and protection).
Use cybersecurity best practices (for example, least privilege, separation of duties) to help prevent unauthorized exposure, loss, modification of data and logs, or interruption of services.

Failure to follow these instructions can result in death, serious injury, or equipment damage.