Bolt On Miniature Circuit Breakers

Siemens SHLD Series circuit breakers are designed for protecting electrical equipment against short-circuit and current overload conditions. These UL-listed breakers feature a bolt-on mounting design to ensure ease-of-installation in compact spaces and a thermal-magnetic trip for delivering long-time and instantaneous current limiting functions. Choose from a wide range of these bolt-on circuit breakers, available in 500 and 600A current ratings on Raptor Supplies.

Siemens SHMD Series circuit breakers are designed to protect the sensitive circuits from excessive current flows causing overloads or short circuits. These circuit breakers feature LI (long time and Instantaneous trip) functions for current limiting protection and are equipped with solid state protection mechanisms to electronically control the current flow and to provide an advance safety for appliances. These UL-listed circuit breakers provide a maximum current rating of 800A at an interrupting capacity of 65kA at 480VAC.

Siemens SHND Series circuit breakers are used for providing protection against current overloads and short-circuit conditions in control panels, switchboards and motor control centres. These UL-listed breakers feature a bolt-on mounting design ensuring smooth installation in compact spaces and LI (long time and instantaneous) current limiting function at a maximum interrupt capacity of 65kA at 480VAC.

Siemens SMD Series circuit breakers are designed for limiting let-through current for protecting downstream components in power distribution applications. These molded case circuit breakers feature a bolt-on design for ease-of-installation & wiring, and solid state components for long-term durability & quick response against faulty currents. Selected models feature short time, instantaneous & long time trip functions for reacting against severe short-circuits at once while avoiding tripping on mild overloads. These 3 pole, 800A circuit breakers are available on Raptor Supplies.

Siemens JD Series circuit breaker trip units are designed to interrupt circuits exceeding the ambient operating temperature. These devices feature a non-interchangeable, thermal-magnetic trip mechanism offering both instantaneous and time-delayed current limiting functions. They are suitable for use with JD, HJD, HJXD, HHJD, HHJXD Series molded case circuit breakers and are available in amperage ratings of 200A, 225A, 250A and 400A on Raptor Supplies.

Siemens MD Series circuit breaker trip units are designed for protecting electrical appliances and are used in conjunction with branch circuit protection while connected with external devices. These Sentron Series trip units feature a thermal-magnetic, non-interchangeable trip overriding mild overloads while instantly reacting to severe current spikes for maximum current limiting protection. They are suitable for use with Siemens MD & HMD molded case circuit breakers for maximum efficiency. These trip units feature a 3 pole design with MD-T type frame for added versatility and are voltage rated at 600V. MD Series trip units are available in current ratings ranging between 500A & 800A on Raptor Supplies.

Siemens ND Series interrupt the current flow and protect downstream components from severe overload and short circuit conditions. These Sentron Series trip units feature a thermal magnetic trip for providing both instantaneous and long time current limiting protection. They are suitable for use with Siemens ND & HND molded case circuit breakers for maximum efficiency. These trip units feature a 3 pole design with ND-T type frame for added versatility and are voltage rated at 600V. ND Series trip units are available in 1000A & 1200A current ratings on Raptor Supplies.

Siemens RD Series circuit breaker trip unit are designed to facilitate both low and high interrupting capacity requirements for the protection of industrial equipment. These devices are suitable for use with RD and HRD Series molded case circuit breakers and feature a thermal-magnetic trip unit providing long-time and instantaneous current limiting functions against overloads or short-circuit conditions. Choose from a wide range of these trip units available in 1600, 1800 and 2000A current ratings on Raptor Supplies.

Siemens SCND Series circuit breakers are specially designed to provide electric circuit protection against damages caused by overloads and short-circuit conditions. These devices are calibrated at an ambient temperature of 40 degrees C and feature a non-interchangeable trip capable of resisting mild overloads while instantly responding to severe current surges. They are further integrated with a bolt-on mounting design to ensure ease-of-installation in compact spaces and deliver a maximum interrupt capacity of 65kA at 480VAC. Choose from an extensive array of these circuit breakers available in 800 and 1200A current ratings on Raptor Supplies.

Siemens JD / JXD Series circuit breakers are ideal for overcurrent protection for commonly used in switchboards, panelboards, motor control centres and other electrical distribution systems. They feature bolt-on mounting that allows easy installation on the mounting rail or bus bar, ensuring a stable connection. These circuit breakers are available in 2 and 3 pole configurations allowing balanced power distribution.