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The BE1-50/51B Time Overcurrent Relay provides economical
overload and fault protection for generators, transformers, lines
and motors.
• Self powered from 50/60Hz systems, available for 5 or 1 amp
CT secondaries.
• Ten field selectable curves.
• Independent instantaneous overcurrent function.
• Drawout construction, testable in the case.
• Qualified to the requirements of:
- IEEE C37.90-1989, C37.90.1-1989, C37.90.2-1989, UL508
• 200 series adds:
- Patented integrating reset characteristic, even when current
goes to zero.
Replicates electromechanical reset for all applications.
- Five additional field selectable curves, for a total of 15.
• Five year warranty.
ADDITIONAL INFORMATION
INSTRUCTION MANUAL
Request Publication 9252000991
TIMING CURVES
Request Publication 9252000998 or 9252000894 for Basler-equivalent IAC curves
Request Publication 9252000999 for Basler-equivalent CO and BS142 curves
STANDARDS, DIMENSIONS and ACCESSORIES
Request Publication SDA
ADVANTAGES
P. O. BOX 269 HIGHLAND, ILLINOIS, U.S.A. 62249 PHONE 618-654-2341 FAX 618-654-2351
BE1-50/51B
SELF POWERED
TIME OVERCURRENT
RELAY
Direct replacement "plug and play"
relays are available.
See Product Bulletin UHK.
FEATURES and
APPLICATION
Page 2
FUNCTIONAL
DESCRIPTION
Pages 2-5
SPECIFICATIONS
Pages 6 and 7
ORDERING
INFORMATION
Page 8
BE1-50/51B
UHD-14
5-08
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Related Manuals for Basler BE1-50/51B
Summary of Contents for Basler BE1-50/51B
- Page 1 INSTRUCTION MANUAL ORDERING Request Publication 9252000991 INFORMATION TIMING CURVES Page 8 Request Publication 9252000998 or 9252000894 for Basler-equivalent IAC curves Request Publication 9252000999 for Basler-equivalent CO and BS142 curves STANDARDS, DIMENSIONS and ACCESSORIES Request Publication SDA UHD-14 5-08 P. O. BOX 269 HIGHLAND, ILLINOIS, U.S.A. 62249 PHONE 618-654-2341 FAX 618-654-2351...
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Page 2: Functional Description
APPLICATION FEATURES • 15 field selectable, inverse, fixed time and British The BE1-50/51B is a single phase self powered, micro- Standard (BS142) time overcurrent curves on 200 processor based time overcurrent relay. The relay is series relays (10 on 100 series). - Page 3 BE1-50/51B FUNCTIONAL DESCRIPTION, continued The watchdog timer monitors the microprocessor for Operating power from the power supply is applied to specific pulses indicating proper program operation. If the microprocessor supervisor circuit. When the input something occurs to disrupt the microprocessor, these...
- Page 4 TARGETS RESET Two target indicators are provided as a standard feature of the BE1-50/51B. These magnetically latched, current Reset occurs when the current level is less than pickup. operated targets provide visual indication of trip by the Internal switch provides selection of either an Instanta- TIME or INST output contact.
- Page 5 BE1-50/51B FUNCTIONAL DESCRIPTION, continued Figure 3 - Instantaneous Characteristics CO and BS142 curves in 100 and 200 series models: S=Short Inverse M=Moderately Inverse B=BS142 Very Inverse L=Long Inverse I=Inverse C=BS142 Extremely Inverse D=Definite Time V=Very Inverse F=Fixed Time E=Extremely Inverse...
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Page 6: Specifications
BE1-50/51B SPECIFICATIONS BURDEN: Burden is non-linear and resistive. Continuous One Second CURRENT SENSING INPUT: Current Current 5 Amp Unit: 4.8 Ohms @ 0.5A & 0.2 Ohms @ 5A 1 Amp Unit: 120 Ohms @ 0.1A & 5 Ohms @ 1A 5 Amp Unit 14.0 Amps... - Page 7 BE1-50/51B SPECIFICATIONS, continued AGENCY: cURus recognition per UL Standard 508, File E97035 and CSA Standard C22.2 No. 14 CASE SIZE: A1 or S1 NET WEIGHT: 8.6 pounds...
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Page 8: Ordering Information
TIME and INST functions and outputs, removing external wiring. magnetically latched targets, and an auxiliary output Order test plug: Basler part number: 10095. contact. P .A.E. Les Pins, 67319 Wasselonne Cedex FRANCE Route 143, Box 269, Highland, Illinois U.S.A. 62249 No.
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