Special Application Fuses
259 Series Safe-T-Plus Fuse
Baseefa
Safe-T-Plus Fuse 259 Series
Description
5IFꢀ4BGFꢃ5ꢃ1MVTꢀꢂꢄꢋꢀ4FSJFTꢀPGGFSTꢀBꢀSBOHFꢀPGꢀFODBQTVMBUFEꢀ
GVTFTꢀEFTJHOFEꢀUPꢀFOBCMFꢀHSFBUFSꢀTBGFUZꢀGPSꢀPQFSBUJOHꢀFMFDUSPOJDꢀ
FRVJQNFOUꢀXJUIJOꢀQPUFOUJBMMZꢀFYQMPTJWFꢀFOWJSPONFOUTꢊꢀ0SJHJOBMMZꢀ
EFTJHOFEꢀUPꢀTFSWFꢀUIFꢀOFFETꢀPGꢀHBTꢀQMBOUTꢅꢀQFUSPDIFNJDBMꢀBOEꢀ
QSPDFTTJOHꢀJOEVTUSJFTꢅꢀUIFTFꢀGVTFTꢀBSFꢀDFSUJUJGFEꢀGPSꢀVTFꢀXJUIJOꢀ
JOUSJOTJDBMMZꢀTBGFꢀBQQBSBUVTꢀ"5&Yꢀꢓ&/ꢀꢁꢌꢌꢎꢋꢃꢌꢆꢂꢌꢌꢋꢀꢔꢀ&/ꢀꢁꢌꢌꢎꢋꢃ
ꢇꢇꢆꢂꢌꢌꢎꢈꢅꢀ*&$&Yꢈꢀ*&$ꢀꢁꢌꢌꢎꢋꢃꢌꢆꢂꢌꢌꢎꢀꢔꢀ*&$ꢀꢁꢌꢌꢎꢋꢃꢇꢇꢆꢂꢌꢌꢁꢈꢊ
5IFꢀFODBQTVMBUJPOꢀNBUFSJBMꢀJTꢀ1PMZBNJEFꢀꢁꢀBUꢀBꢀNJOJNVNꢀEFQUIꢀ
PGꢀꢇNNꢀꢓꢍNNꢀUZQJDBMMZꢈꢀBOEꢀIBTꢀBꢀ$5*ꢀꢓ$PNQBSBUJWFꢀ5SBDLJOHꢀ
*OEFYꢈꢀPGꢀHSFBUFSꢀUIBOꢀꢇꢎꢄꢊꢀ5IFꢀMFBETꢀBSFꢀTFQBSBUFEꢀCZꢀBꢀ
NJOJNVNꢀDMFBSBODFꢀBOEꢀDSFFQBHFꢀEJTUBODFꢀPGꢀꢋꢀNNꢀBOEꢀIFODFꢀ
BSFꢀTVJUBCMFꢀGPSꢀVTFꢀJOꢀJOUSJOTJDBMMZꢀTBGFꢀBQQBSUBUVTꢀGPSꢀWPMUBHFꢀOPUꢀ
FYDFFEJOHꢀꢇꢂꢄ7ꢀSNTꢀꢓꢇꢋꢌ7ꢀQFBLꢈꢊ
Agency Approvals
Features
Agency
Agency File Number
Ampere Range
tꢀ )FSNFUJDBMMZꢀTFBMFEꢀ
tꢀ .FFUꢀDFSUJmDBUJPOꢀGPSꢀ
VTFꢀXJUIJOꢀJOUSJOTJDBMMZꢀ
TBGFꢀBQQBSBUVTꢀGPSꢀ
BQQMJDBUJPOTꢀTVDIꢀBTꢀHBTꢀ
QMBOUTꢅꢀQFUSPDIFNJDBMꢀ
and processing
Baseef02ATEX0071U
IECEx BAS 10.0098U
tꢀ ꢁꢂN"ꢀꢃꢀꢄ"ꢀSBOHFꢀPQUJPOT
Baseefa
62mA - 1A
tꢀ %FTJHOFEꢀUPꢀPQFSBUFꢀ
XJUIJOꢀFOWJSPONFOUTꢀ
XIFSFꢀUIFSFꢀJTꢀEBOHFSꢀ
PGꢀHBTꢀFYQMPTJPOꢀGSPNꢀ
GBVMUZꢀDJSDVJUT
E10480
500mA, 750mA
JOEVTUSJFT
Electrical Characteristics for Series
Applications
% of Ampere
OpeningTime
Rating
tꢀ 5FTUJOHꢅꢀNFBTVSJOHꢀPSꢀ
QSPDFTTJOHꢀFMFDUSPOJDꢀ
BOEꢀFMFDUSJDBMꢀFRVJQNFOU
100%
4 Hours, Minimum
5 Seconds, Maximum
200%
Electrical Specifications by Items
Nominal
Cold
Resistance
(Ohms)
Nom
Agency Approvals
Ampere
Rating
(A)
Nominal
Melting
Amp
Code
Interrupting
Rating
Voltage
Drop
I2t (A2 Sec.)
Baseefa
(mV)
0.062
0.125
0.250
0.375
0.500
0.750
1.00
.062
.125
.250
.375
.500
.750
1.00
003
7.00
1.70
0.00016
0.0012
0.0095
0.025
0.0598
0.153
0.256
1.27
2.10
1.30
x
x
x
x
x
x
x
0.67
0.83
0.81
0.78
0.23
0.24
0.131
0.110
0.395
0.302
0.175
0.128
0.275
0.0158
ꢄꢌ"ꢀ!ꢀꢇꢂꢄꢀ7"$
x
x
ꢍꢌꢌ"ꢀ!ꢀꢇꢂꢄꢀ7%$
3.00
5.00
005
4.14
4DIFEVMFꢀPGꢀMJNJUBUJPOTꢆ
ꢇꢈꢀ5IFꢀGVTFꢀNVTUꢀCFꢀTPꢀNPVOUFEꢀUIBUꢀDSFFQBHFꢀBOEꢀDMFBSBODFꢀEJTUBODFTꢀBSFOꢉUꢀJNQBJSFEꢀJOꢀBOZꢀXBZꢊꢀ
ꢂꢈꢀ5IFꢀGVTFꢀJTꢀTVJUBCMFꢀGPSꢀVTFꢀJOꢀJOUSJOTJDBMMZꢀTBGFꢀFRVJQNFOUꢀGPSꢀWPMUBHFTꢀOPUꢀFYDFFEJOHꢀꢇꢋꢌ7ꢀQFBLꢊ
ꢍꢈꢀ.BYJNVNꢀTVSGBDFꢀUFNQFSBUVSFꢀSJTFꢀBUꢀꢇꢎꢌꢏꢀSBUFEꢀDVSSFOUꢀõꢎꢄꢌN"ꢐꢑꢌ$ꢅꢀꢇ"ꢐꢄꢄ$ꢅꢀꢍ"ꢐꢇꢇꢒ$ꢀBOEꢀꢄ"ꢐꢇꢍꢄ$ꢊ
© 2012 Littelfuse, Inc.
Safe-T-Plus Fuse 259 Series
Specifications are subject to change without notice.
Revised: April 30, 2012
Please refer to www.littelfuse.com/series/259.html for current information.