Technical Data 1014 Effective August 2015
Supersedes January 2014
BUSSMANN
SERIES
LIMITRON™ FNQ-R Class CC 600Vac,
1⁄4-30A, time-delay fuses
Catalog symbol:
• FNQ-R-(amp)
Description:
Advanced protection Class CC current-limiting,
time-delay fuses.
Specifications:
Ratings
• Volts
• 600Vac
• 300Vdc (15 & 20A)
• Amps 1⁄4-30A
• IR
• 200kA Vac RMS Sym.
• 20kA Vdc (15 & 20A)
Agency information
• UL® Listed, Std. 248-4, Class CC, Guide JDDZ,
File E4273
• CSA® Certified, Class CC CSA, Class 1422-01,
File 53787–HRC-MISC
• CE
• RoHS compliant*
* FNQ-R-1⁄4 not RoHS complaint.
Catalog numbers (amps)
FNQ-R-1⁄4 FNQ-R-1-3⁄10 FNQ-R-3-2⁄10 FNQ-R-8
FNQ-R-3⁄10 FNQ-R-1-4⁄10 FNQ-R-3-1⁄2 FNQ-R-9
FNQ-R-4⁄10 FNQ-R-1-1⁄2 FNQ-R-4 FNQ-R-10
FNQ-R-1⁄2 FNQ-R-1-6⁄10 FNQ-R-4-1⁄2 FNQ-R-12
FNQ-R-6⁄10 FNQ-R-1-8⁄10 FNQ-R-5 FNQ-R-15
FNQ-R-3⁄4 FNQ-R-2 FNQ-R-5-6⁄10 FNQ-R-17-1⁄2
FNQ-R-8⁄10 FNQ-R-2-1⁄4 FNQ-R-6 FNQ-R-20
FNQ-R-1 FNQ-R-2-1⁄2 FNQ-R-6-1⁄4 FNQ-R-25
FNQ-R-1-1⁄8 FNQ-R-2-8⁄10 FNQ-R-7 FNQ-R-30
FNQ-R-1-1⁄4 FNQ-R-3 FNQ-R-7-1⁄2
Carton quantity:
Amp rating Carton qty.
1⁄4-30 10
Dimensions - in:
Features:
• Provides 10X better current limitation to help
prevent equipment damage caused by short-
circuit events.
• 200kA interrupting rating complies with
NEC® Section 110.9 for today’s large capacity
systems.
• Fast-acting fuse helps prevent equipment
damage caused by short-circuit events.
• Rejection type fuse fits both standard and
rejection-style holders.
• The Class CC FNQ-R Limitron fuse meets the
needs of control circuit transformer protection.
• FNQ-R fuses can be sized according to NEC®
and UL requirements and still allow the high
inrush currents, with significantly more time-
delay than the UL minimum value of 12
seconds at 200% for Class CC fuses.
• Ideal for critical industrial or commercial
applications that have specific current limitation
requirements.
1.5" (± 0.031)
(38.1mm)
0.41" (± 0.005)
(10.3mm)
2
Technical Data 1014
Effective August 2015
LIMITRON™ FNQ-R Class CC 600Vac, 1⁄4-30A, time-delay fuses
Eaton.com/bussmannseries
Applications:
• Branch circuits
• Line protection
• Small control transformers
• Industrial control
Recommended fuse blocks and holders:
Fuse amps 1-Pole 2-Pole 3-Pole
Modular open blocks
0-30 BCM603-1_ BCM603-2_ BCM603-3_
DIN-Rail holders
CHCC1D_ CHCC2D_ CHCC3D_
0-30 — — OPM-NG-_
— — OPM-1038_
— — OPM-1038_SW
Panel mount holders
0-30 HPS — —
HPF — —
In-line holders
0-30 — HEY —
HEZ — —
For additional information on Class CC fuse blocks and holders, see
data sheets:
• Modular open blocks # 10241 (BCM)
• DIN-Rail holders No. 3185 (CHCC), No. 1109 (OPM), No. 1102
(OPM-1038), No. 1103 (OPM-1038_SW)
• Panel mount holders No. 2113 (HPS), No. 2114 (HPF)
• In-line holders No. 2126 (HEY), No. 2130 (HEZ)
3
Technical Data 1014
Effective August 2015
LIMITRON™ FNQ-R Class CC 600Vac, 1⁄4-30A, time-delay fuses
Eaton.com/bussmannseries
Time-current curves - average melt:
1⁄2 to 71⁄2 amps
1
AMP RATING
100
10
1
0.1
0.01
0.5
10
100
200
TIME IN SECONDS
CURRENT IN AMPS
300
200
400
500
1/2
6/10
3/4
8/10
1
1-1/8
1-1/2
1-8/10
2
2-1/2
3
3-2/10
3-1/2
4
5
6-1/4
7-1/2
1-1/4
5-6/10
7
6
4
Technical Data 1014
Effective August 2015
LIMITRON™ FNQ-R Class CC 600Vac, 1⁄4-30A, time-delay fuses
Eaton.com/bussmannseries
Time-current curves - average melt:
15 to 30 Amps
100
1000
TIME IN SECONDS
CURRENT IN AMPS
10
1
100
0.01
0.1
1
10
20A
10000
1000
15A
30A
AMP RATING
5
Technical Data 1014
Effective August 2015
LIMITRON™ FNQ-R Class CC 600Vac, 1⁄4-30A, time-delay fuses
Eaton.com/bussmannseries
Current-limitation curves:
1-1⁄2 to 7-1⁄2 amps
LIMITRON™ FNQ-R Class CC 600Vac, 1⁄4-30A, time-delay fuses
Technical Data 1014
Effective August 2015
Eaton, Bussmann and Limitron are valuable
trademarks of Eaton in the US and other
countries. You are not permitted to use
the Eaton trademarks without prior written
consent of Eaton.
UL® is a registered trademark of the
Underwriters Laboratories, Inc.
CSA® is a registered trademark of the
Canadian Standards Group.
NEC® is a registered trademark of the National
Fire Protection Association, Inc.
Eaton
1000 Eaton Boulevard
Cleveland, OH 44122
Eaton.com
Bussmann Division
114 Old State Road
Ellisville, MO 63021
United States
Eaton.com/bussmannseries
© 2015 Eaton
All Rights Reserved
Printed in USA
Publication No. 1014 — BU-SB14042
August 2015
The only controlled copy of this data sheet is the electronic read-only version located on the Eaton 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. Eaton reserves the right, without notice, to change design or construction of any products and to discontinue or
limit distribution of any products. Eaton 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.
Current-limitation curves:
10 to 30 amps