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.
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 timedelay
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.
| 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-1-8/10 | 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 (mm):

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 | |||
| 0-30 | CHCC1D_ | CHCC2D_ | CHCC3D_ |
| 0-30 | - | - | OPM-NG_ |
| 0-30 | - | - | OPM-1038_ |
| 0-30 | - | - | OPM-1038_SW |
| Panel mount holders | |||
| 0-30 | HPS | - | - |
| 0-30 | HPF | - | - |
| In-line holders | |||
| 0-30 | - | HEY | - |
| 0-30 | 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)