Circuit Breakers

Square D LH molded case circuit breakers provide thermal magnetic protection. Their primary function is automatic opening of a circuit under overload or short circuit conditions or manual opening. LH circuit breakers contain thermal (overload) and...

QO and QOB one, two, and three pole thermal magnetic circuit breakers provide overcurrent protection and switching on AC systems. These circuit breakers have an over center, trip free toggle mechanism with quick make, quick break action and positive...

E-Frame Breaker are Lighting Panelboard Circuit breakers that are proven effective and reliable which provide a wide variety or robust features that are use specifically in Square D NF Panelboards. This range of breaker is ideally designed to offer...

PowerPacT H-Frame circuit breakers are designed to protect electrical systems from damage caused by overloads and short circuits. PowerPacT H-Frame circuit breakers are available with either thermal magnetic or Micrologic electronic trip protection units...

PowerPacT J-Frame motor circuit protectors (MCP) are instantaneous-trip circuit breakers designed to offer short circuit protection for motors. The unique design of the PowerPacT MCPs accommodates transient motor inrush current without nuisance tripping...

E-Frame Breaker are Lighting Panelboard Circuit breakers that are proven effective and reliable which provide a wide variety or robust features that are use specifically in Square D NF Panelboards. This device is a 1 pole bolt-on breaker that is rated at...

E-Frame Breaker are Lighting Panelboard Circuit breakers that are proven effective and reliable which provide a wide variety or robust features that are use specifically in Square D NF Panelboards. This range of breaker is ideally designed to offer...

PowerPact J-Frame accessory circuits exit the circuit breaker using one to three secondary disconnecting blocks (nine wires each). Circuit breaker connection wires for the options installed with trip unit exit through the automatic secondary...

QOU miniature molded case circuit breakers are intended for use in residential and commercial applications. These circuit breakers are unit mount thermal magnetic circuit breakers. QOU breakers will automatically open a circuit under overload or short...

The PowerPact H-, J-, and L-frame circuit breakers are designed to protect electrical systems from damage caused by overloads and short circuits. H- and J-frame circuit breakers are available with either thermal-magnetic or Micrologic electronic trip...

PowerPact J-Frame accessory circuits exit the circuit breaker using one to three secondary disconnecting blocks (nine wires each). Circuit breaker connection wires for the options installed with trip unit exit through the automatic secondary...

PowerPacT B-Frame brings thermal-mechanical circuit protection in a compact size and offers a wide range of accessories, auxiliaries, and connection options. This PowerPacT B-Frame circuit breaker provides thermal magnetic circuit protection with a...

This is a mechanoical interlocking kit, for PowerPacT h, J-Frame circuit breaker. This interlock is for a rotary handle and is ditect mounted. This product complies with UL standards. This interlock requires a tightening torque of 1.2-1.2 Nm. This...

PowerPacT L-Frame circuit breakers are designed to protect electrical systems from damage caused by overloads and short circuits. PowerPacT L-Frame circuit breakers are available with electronic trip units. All PowerPacT L-Frame circuit breakers are...

PowerPacT H-Frame automatic switches are a disconnect device and can be used to open and close a circuit under normal operating conditions. The automatic switches are similar in construction, use the same accessories, and offer the same connection...

PowerPacT L-Frame motor circuit protectors (MCP) are instantaneous-trip circuit breakers designed to offer short circuit protection for motors. PowerPacT L-Frame motor circuit protectors are available with electronic trip units. The unique design of the...

Square D Q4 molded case circuit breakers provide thermal magnetic protection. Their primary function is automatic opening of a circuit under overload or short circuit conditions or manual opening. Q4 circuit breakers can be used for multiple applications...

QO and QOB one, two, and three pole thermal magnetic circuit breakers provide overcurrent protection and switching on AC systems. These circuit breakers have an over center, trip free toggle mechanism with quick make, quick break action and positive...

PowerPacT B-Frame brings thermal-mechanical circuit protection in a compact size and offers a wide range of accessories, auxiliaries, and connection options. This PowerPacT B-Frame circuit breaker provides thermal magnetic circuit protection with a...

QO and QOB one, two, and three pole thermal magnetic circuit breakers provide overcurrent protection and switching on AC systems. These circuit breakers have an over center, trip free toggle mechanism with quick make, quick break action and positive...