Go to GlobalSpec.com Home
Free Registration 
GlobalSpec Home
Find:      Advanced >>

3-Phase Monitor -- Model 257B-400 Protective Relays and Monitoring Relays Data Sheets Time Mark Corporation


Available from: Time Mark Corporation
See Product Details Send an E-mail to Company Request a Quote from Company
 
3-Phase Monitor -- Model 257B-400
SPECIFICATIONS View Entire Datasheet
Voltage Sensitive Relay Undervoltage
Power (Phase) Sensing Phase Failure (Loss); Reversal
Protective Functions Synchronous Check (Paralleling)
Voltage Sensing Range (volts) 160 to 240
Frequency Sensing Range (Hz) ? to 400
Notes SPDT, 8-pin socket mounting, high humidity tolerance
Abstract The Model 257 continuously monitors 3-phase power lines for abnormal conditions. When properly SPECIFICATIONS adjusted, the Model 257 monitor will detect phase
View Entire Datasheet

More Data Sheets from Time Mark Corporation


Learn more about Protective Relays and Monitoring Relays
View Industrial Directory for Protective Relays and Monitoring Relays
Show all Protective Relays and Monitoring Relays companies
View GlobalSpec Directory



Home   |   About GlobalSpec   |   Advertise With Us   |   Site Map   |   Top Categories   |   Terms of Use
Privacy Policy   |   Link To Our Site   |   Submit a Site   |   Recommend This Site
©1999-2008 GlobalSpec.  All rights reserved.  GlobalSpec, the GlobalSpec logo, SpecSearch, The Engineering Search Engine and The Engineering
Web are registered trademarks of GlobalSpec, Inc. The Engineering Toolbar and DesignInfo are service marks of GlobalSpec, Inc.
No portion of this site may be copied, retransmitted, reposted, duplicated or otherwise used
without the express written permission of GlobalSpec Inc.   350 Jordan Rd, Troy, NY, 12180