Basler BE1-51B Manual

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BE1-50/51B Retrofit Kits

The BE1-50/51B Time Overcurrent Relay Retrofit kits provide economical, modern

replacements for electromechanical overcurrent relays in a variety of applications.

ADVANTAGES

• Self powered from 50/60Hz systems, available for 5 or 1 amp CT secondaries.

• Field selectable curves match original manufacturers' shapes.

• Independent instantaneous overcurrent function.

• Second independent instantaneous available on some models can be applied

to reduce arc flash hazard.

• Wired specifically to replace existing electromechanicals.

• Drawout construction, testable in the case.

• Qualified to the requirements of:

- IEEE C37.90, C37.90.1, C37.90.2, UL508

• Patented integrating reset characteristic, even when current goes to zero.

Replicates electromechanical reset for all applications.

• Five year warranty.

ADDITIONAL INFORMATION

INSTRUCTION MANUALS

Request Publication 9252000793 (244 CO arc flash replacement)

Request Publication 9252000895 (231 IAC replacement)

Request Publication 9252000994 (214, 215, 225 IAC replacement)

Request Publication 9252000995 (218, 228 IAC replacement with case)

Request Publication 9252000981 (219, 226 CO replacement)

Request Publication 9252000790 (240 CO replacement in FT-21 cradle)

Request Publication 9252000792 (241 CO replacement in FT-21 cradle

with Arc Flash upgrade)

Request Publication 9252000892 (229 SFC replacement)

Request Publication 9252000894 (230, 234, 239 IAC66K replacement)

Request Publication 9252000898 (235, 236 CO arc flash upgrade replacement)

Request Publication 9252000899 (237, 238 IAC arc flash upgrade replacement)

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

FEATURES and

APPLICATION

Page 2

FUNCTIONAL

DESCRIPTION

Pages 3 and 4

SPECIFICATIONS

Pages 5 and 6

RETROFIT

INFORMATION

Pages 6 and 7

ORDERING

INFORMATION

Page 8

UHK-8

9-11

BE1-50/51B, CO Retrofits BE1-50/51B, IAC and SFC Retrofits

BE1-50/51B

SELF POWERED

TIME OVERCURRENT

RELAY

RETROFIT KITS

12570 STATE ROUTE 143, HIGHLAND IL 62249-1074 USA PHONE 618-654-2341 FAX 618-654-2351

BE1-50/51B with S1 Case or FT-11 sized Case and Cover

For non-retrofit applications,

see Product Bulletin UHD.

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Summary of BE1-51B

Page 1
Be1-50/51b retrofit kits the be1-50/51b time overcurrent relay retrofit kits provide economical, modern replacements for electromechanical overcurrent relays in a variety of applications. Advantages • self powered from 50/60hz systems, available for 5 or 1 amp ct secondaries. • field selectable curv...
Page 2: Features
Be1-50/51b retrofit kits features • 15 field selectable, inverse, fixed time and british standard (bs142) time overcurrent curves on 200 series relays (10 on 100 series). • time characteristics extend to 40 x pickup. • instantaneous overcurrent function. • wide setting ranges: time overcurrent: 0.5 ...
Page 3: Functional Description
Be1-50/51b retrofit kits 3 functional description table 2. Current sensing capabilities time element time element 50/60 hz system time element max. Continuous max. Current instantaneous time element instantaneous ct secondary pickup range current for 1 second pickup range pickup accuracy pickup accu...
Page 4
Be1-50/51b retrofit kits 4 functional description, continued figure 3 - side view, 50-b adjustments, be1-50/51b-235 and -236 figure 4 - side view, 50-b adjustments, be1-50/51b-230, -234, -237, -238, -239 and -244 230, 237, 239 234, 238 a: units a. Amps x 0.2 b: tenths b. Amps x 0.02 235 236 a: units...
Page 5: Specifications
Be1-50/51b retrofit kits 5 current sensing input: 5 amp unit 14.0 amps 400 amps 1 amp unit 2.8 amps 80 amps continuous one second current current time pickup range: 5 amp unit: 0.5 to 15.9 amps in 0.1 amp steps 1 amp unit: 0.1 to 3.18 amps in 0.02 amp steps time dropout: not less than 95% of pickup ...
Page 6: Specifications, Continued
Be1-50/51b retrofit kits 6 specifications, continued retrofit features the be1-50/51b-214, -215, -225, -230, -231, -234, -237, and -238 retrofit kits consist of a cradle, an adapter plate, and a cover and provides for installing a basler be1-50/51b single-phase time overcurrent relay in an existing ...
Page 7
Be1-50/51b retrofit kits 7 notes: 1. * = any digit covering all pickup ranges, instantaneous, non-instantaneous, and 50 hz and 60 hz models. 2. Units with instantaneous elements are designated with a "b" for the eighth character in the model number. Sfc models that may be retrofitted with the be1-50...
Page 8: Ordering
Be1-50/51b retrofit kits ordering model number: be1-50/51b time overcurrent relay how to order: designate the model number and the three-digit number from table 3 to define the configuration desired. Note: existing case must have appropriate terminals for a multiple element relay. Complete co replac...