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Accessories External Portable and Switchboard Shunts Portable Shunts Up to 200 DC Amps Switchboard Shunts Up to 500 DC Amps Reduces High DC Current Signal into either 50 or 100 Millivolt Drop Accuracy 1% 5 Foot Leads (0.065 Ohms) Included Simpsons Portable and Switchboard shunts enable a panel meter to indicate higher DC currents than can be provided with a self-contained internal shunt. A typical shunt installation in series with the load and source is shown in the technical support download, under panel meter wiring instructions. These shunts can be used with either digital or analog meters. Most digital DC Millivolt meters that Simpson manufactures can be scaled to display the actual current. Simpson can custom design any dial for the analog meters you require. Simpson manufactures two types of external shunts: Portable and Switchboard shunts. Portable shunts are mounted in a phenolic base. This base allows the shunt to be easily installed in many locations. Portable shunts come in a 50 millivolt drop and a 100 millivolt drop. The most commonly used is the 50 millivolt unit. Switchboard shunts mount directly onto a buss bar and have a 50 millivolt drop. They have the same quality construction as a portable shunt, but without the phenolic base. Leads for these shunts are 5 feet long and are rated at 0.065 ohms resistance. Shunts with a 100 amp rating and below can be certified to NIST standards. 50mV Shunts Switchboard Portable 150 amp 100 amp Catalog No. 06714 Catalog No. 06500 File E91015 File E91015 Ordering Information Ordering Information Portable 50mV Shunts Portable 100mV Shunts Switchboard 50mV Shunts Range Catalog No. Range Catalog No. Range Catalog No. 1 06700 10 06716 100 06500 5 06703 100 06717 150 06503 10 06704 5 leads included 200 06504 15 06705 250 06505 25 06707 300 06506 30 06708 400 06507 50 06709 500 06508 75 06711 5 leads included 100 06713 150 06714 200 06715 5 leads included 1 Rev. 11-25-13Accessories External Portable and Switchboard Shunts Dimension Table for Dimension Table for Switchboard Shunts External Portable Shunts Amps A B C Amps A B C D E 1 1 - 5/16 1/2 3/8 - 16 100 4 - 1/2 1 3 - 1/2 1/2 3/8-16 x 1-1/2 5 1 - 5/16 1/2 3/8 - 16 150 4 - 1/2 1 3 - 1/2 1/2 3/8-16 x 1-1/2 10 1 - 5/16 1/2 3/8 - 16 200 4 - 1/2 1 3 - 1/2 1/2 3/8-16 x 1-1/2 15 1 - 5/16 1/2 3/8 - 16 300 5 - 1/2 1 - 1/2 4 1 1/2-13 x 2 25 1 - 5/16 1/2 3/8 - 16 400 5 - 1/2 1 - 1/2 4 1 1/2-13 x 2 30 1 - 5/16 1/2 3/8 - 16 500 5 - 1/2 1 - 1/2 4 1 1/2-13 x 2 50 1 - 5/16 1/2 3/8 - 16 75 1 - 5/16 1/2 3/8 - 16 100 1 - 5/16 1/2 3/8 - 16 150 1 - 5/16 1/2 3/8 - 16 200 1 - 5/16 1/2 3/8 - 16 External Portable Shunts Switchboard Shunts 1/4 1/4 Typical Application + DC Generator Motor Source Shunt - Elevator Car Display Readout 2 Rev. 11-25-13