Littelfuse 977 Series User Manual
Axial lead and cartridge fuses, 977 series
1
© 2010 Littelfuse, Inc.
Specifications are subject to change without notice.
Axial Lead and Cartridge Fuses
5x20mm > Time-Lag > 977 Series
977 Series
Please refer to www.littelfuse.com/series/977.html for current information.
977 Series
977 Series,
5 x 20mm, Time-Lag (Slo-Blo
®
) Fuse
450Vdc/500Vac rated, 5x20mm, Time-Lag, surge withstand,
ceramic body, cartridge fuse.
t %FTJHOFEUP
International (IEC)
Standards for use
globally
t 'PMMPXUIF*&$
Sheet 5 specification
GPS5JNF-BH'VTFT
t "WBJMBCMFJO$BSUSJEHF
BOE"YJBMMFBE'PSN
t 3PITDPNQMJBOUBOE1C
free
Features
Applications
*OWFSUFSJO-$%CBDLMJHIUVOJU
%$TJEFPGBJSDPOEJUJPOFST
QIBTFQPXFSTVQQMJFT
)JHIFS&OFSHZBOE1PXFS&GåDJFOU
applications.
Description
PS
E
Agency Approvals
Agency
Agency File Number
Ampere Range
PS
E
Cartridge Certificates:
/#,+1"
/#,+1$
/#,+1"
Leaded Certificates:
/#,+1#
/#,+1%
/#,+1#
"o"
"o"
"
"o"
"o"
"
Cartridge Certificates:
Leaded Certificates:
N"o"
N"o"
N"o"
Electrical Characteristics for Series
% of Ampere
Rating
Ampere Rating
Opening Time
N"oN"
NJOVUFT .JOJNVN
"o"
NJOVUFT .JOJNVN
"o"
NJOVUFT .JOJNVN
"o"
NJOVUFT .JOJNVN
N"oN"
NJOVUFT .BYJNVN
"o"
NJOVUFT .BYJNVN
"o"
NJOVUFT .BYJNVN
"o"
NJOVUFT .BYJNVN
N"oN"
NT.JOTFDT.BY
"o"
NT.JOTFDT.BY
"o"
NT.JOTFDT.BY
"o"
NT.JOTFDT.BY
N"oN"
NT .JOTFDT.BY
"o"
NT .JOTFDT.BY
"o"
NT .JOTFDT.BY
"o"
NT .JOTFDT.BY
N"oN"
NT .JONT .BY
"o"
NT .JONT .BY
"o"
NT .JONT .BY
"o"
NT .JONT .BY
Revised: September 9, 2011