®
Bu s s m a n n
Britis h Style BS 88 – Acce s s orie s
Indicator System and Fuse Bases (Blocks)
®
Mic ros witc h a nd Ada ptor Type MAI
Current Rating:
Trip Indicator
AC 50/60Hz resistive load @ 250 VRMS
AC 50/60Hz resistive load @ 127 VRMS
4A
6A
DC, resistive load @ 110 Vdc
DC, resistive load @ 30 Vdc
0.7
2
Maximum Working Voltage:
Contact-to-contact (RMS)
Contact-to-contact (RMS)
1000V
1500V
3.6
5.2
2.8
2.4
5.2
3.6
36
36
44
44
Trip-indicator fuselinks are available for use in parallel
with the main fuselinks. They can either be attached to
the associated fuselink or mounted separately in panel
mounted fuse clips, Part No. CL1. A push-on adaptor
and microswitch attachment is available for use with the
trip indicator to give the facility of remote indication,
reference MAI or MBI.
9.5
21
MAI
21
NC NC
NO
NO
or
MBI
Universal and Stud Fuseblocks
Fuse ratings of 20A and below cannot usually accommo-
date a trip fuselink in parallel.
Where trip indicator fuselinks are to be attached to the
main fuselink, an accessory pack comprising a pair of
mounting clips and an appropriate trip indicator fuselink
will be required.
The ordering code references for these packs are listed
below:
Fuse Type
ET
EET
FE
FEE
Order Ref.
EC-600
EC-600
EC-600
EC-600
EC-250
Fuse Type
FM
FMM
LMT
LMMT
Order Ref.
MC-600
MC-600
MC-250
MC-250
LET
A
0.8
Stud Fus e bloc ks
Part No.
6
21
Stud Height
1.00∑
Stud Dia. & Threads
6.35
C5268-1
C5268-2
C5268-3
C5268-4
C5268-5
fiΩ¡§-18
fiΩ¡§-18
fiΩ¡§-18
⁄Ω¢-20
⁄Ω¢-20
1.75∑
0.75∑
6
1.00∑
Dimensions in mm.
1mm = 0.0394∑
1.75∑
1∑ = 25.4mm
Unive rs a l Fus e bloc ks
Trip-indic a tor Fus e link Da ta
Modular
Base
Max.
Voltage
Max. Fuse
BIF
Dim. ‘A’
Max.
37.6
Voltage
Rating
250
Dim. ‘A’
Max.
98.4
120.8
147.5
198.3
Voltage
Rating
1100
1500
2000
Current Rating
Document
Type
Type
1BS101
1BS102
1BS103
1BS104
600V
600V
600V
600V
100A
1206
1207
1208
1209
TI250
TI500
TI600
TI700
TI1100
TI1500
TI2000
TI2500
400A
47.5
500
400A
55.7
600
61.8
700
2500
600A
The only controlled copy of this BIF document is the electronic read-only version located on the Bussmann
Network Drive. All other copies of this document are by definition uncontrolled. This bulletin is intended to
clearly present comprehensive product data and provide technical information that will help the end user
with design applications. Bussmann reserves the right, without notice, to change design or construction of
any products and to discontinue or limit distribution of any products. Bussmann also reserves the right to
change or update, without notice, any technical information contained in this bulletin. Once a product has
been selected, it should be tested by the user in all possible applications.
Form No.
Page 1 of 1
BIF Doc #720037
12-28-98
SB98107
Rev. A