More info beyond what is below can be found in the PDF document at this link: https://literature.rockwellautomation.com/idc/groups/literature/documents/sg/1492-sg122_-en-p.pdf Bulletin 1489-M thermal-magnetic circuit breakers are approved for branch circuit protection in the United States and Canada, and are certified as Miniature Circuit Breakers for IEC applications. These branch protectors are compatible with many accessories to meet diverse application needs, including UL 508 Listed bus bars for convenience in panel assembly, auxiliary contacts, signal contacts and shunt trips for versatility, and lockout attachments for safety during maintenance. Features include: ? Current limiting ? Fast breaking time ? High rated voltage ? Dual terminals provide a more secure connection of up to four wires, or two wires and a bus bar ? Superior shock and vibration resistance to help prevent nuisance tripping ? Terminal design helps prevent wiring misses by directing wires into the terminal openings, even while tightening ? Reversible line and load connections ? Single and multi-pole toggle mount lock out attachments available for Lockout/ Tagout (LOTO) ? RoHS compliant and fully recyclable device ? Suitable for extreme ambient conditions