Electrical – 2004-08-09

By Staff August 9, 2004

Protection relay

SEL-387L line current differential relay requires no settings after the transmit and receive addresses are configured. Microprocessor-based unit is for applications with identical ratio CTs at both ends of a line with a digital communications channel interface between relays.

Schweitzer Engineering Laboratories, Inc. , selinc.com , Write 324 on PE card

Circuit breakers

Powerpact 150-A H-frame and 250-A J-frame molded case circuit breakers are designed to simplify installation and modification. Snap-in design accommodates bus bar and lug applications. Field-installable accessories include auxiliary switches, alarm contacts, and shunt trips.

Schneider Electric , us.SquareD.com , Write 325 on PE card

Brushless servomotors

BSM series brushless servomotor line includes standard and low-inertia models with a wide variety of feedback devices. Servomotors use resolvers as primary feedback devices, but other encoder types are available. Series expansion includes servomotors with holding brakes.

Baldor Electric Co. , baldor.com , Write 326 on PE card

Utility outlets

Dual DIN-rail mount utility outlet family has been expanded to include 20 different versions in four outlet families, which include standard power, surge suppressor, ground fault circuit interrupter (GFCI), and switched outlets.

Phoenix Contact Inc. , phoenixcon.com , Write 327 on PE card

Disconnect switches

Air conditioning (AC) disconnect switch series is designed to satisfy requirements of 2002 NEC, such as line of sight from the AC condenser to the disconnect and receptacle, a ground fault circuit interrupter (GFCI), and a “while in use” cover in disconnect switches containing GFCI receptacles. Features include drop down and swing out covers, captive set screws, and multiple knockouts for wiring to the switch.

Ferraz Shawmut, Inc. , ferrazshawmut.com , Write 328 on PE card

Dielectric coolant

Envirotemp FR3 dielectric coolant is explained in color brochure. Literature highlights the fluid’s environmental and fire protection benefits as well as its insulation life extension properties.

Cooper Power Systems , cooperpower.com , Write 329 on PE card