Mersen, formerly Ferraz Shawmut US14, US22 Catalog Page
US14 & US22 750 VOLT/ULTRASAFE
Gross Automation (877) 268-3700 · www.ferrazshawmutsales.com · sales@grossautomation.com
ULTRASAFE MODULAR FUSE HOLDERS FOR
14 X 51 AND 22 X 58 MM FUSES
Ferraz Shawmut ULTRASAFETM modular 750 volt
Fuse Holders offer the highest levels of safety and
features for 14 x 51 mm and 22 x 58 mm fuses.
Like all ULTRASAFE
safe” to an IP20 grade of protection under IEC
standards, including fuse changing (with the flick of
a finger). The US14 and US22 ranges are available
in 1, 2 or 3 pole units, with or without blown-fuse
indicator lights in each pole.
These holders come standard with a mechanical
indicator that shows fuse presence. If a striker fuse
is used, this mechanical indicator will also indicate
a blown fuse. Microswitches can be supplied
with the holders (or ordered separately for field
installation) to allow remote communication. These
holders also feature padlocking capabilities, DIN rail
mounting with our unique latching system to allow
re-positioning, and the capability to be joined as
multiple poles in the field.
TM
TM
FUSE HOLDERS
holders, they qualify as “finger
HIGHLIGHTS:
Finger Safe
➤
Optional Indicator Lights
➤
Optional Microswitches
➤
DIN Rail Mount
➤
Compact Footprint
➤
Quick, Easy Fuse Change
➤
RECOMMENDED FUSE USAGE
US14 . . . . . . . . . . . . . . . . use with 14 x 51mm A70QS, A70P, URC, URD, gD14
US22 . . . . . . . . . . . . . . . . use with 22 x 58 mm A70QS, URD, gD22
APPLICATIONS:
All circuits up to
➤
750 volts using
semiconductor fuses
for protection of small
inverters, UPS systems,
motor drives, etc.
No-load disconnect
➤
IP20 requirements
➤
H 8
H 8
Ratings
750V AC
➤
50A (14 x 51 mm)
➤
125A (22 x 58 mm)
➤
Short Circuit Current
➤
Rating: 200kA
Approvals
All Ultrasafe Fuse Holders
➤
meet the requirements
of UL512
UL Recognized Component
➤
Guide IZLT2, File E52283
CSA Certified
➤
Class 6225, File 32169
IEC 269, 947-3
➤
US14 & US22 750 VOLT/ULTRASAFE
A
G
H
J
K
I
C
B
E
F
Gross Automation (877) 268-3700 · www.ferrazshawmutsales.com · sales@grossautomation.com
TM
FUSE HOLDERS
Catalog Numbers and Descriptions For use with 14 x 51 mm Fuses up to 50A
CATALOG NO. DESCRIPTION
US141 1 Pole
US142 2 Pole
US143 3 Pole
US141I 1 Pole with Indicator
US142I 2 Pole with Indicators
US143I 3 Pole with Indicators
US141M 1 Pole with Microswitch
US142M 2 Pole with Microswitch
US143M 3 Pole with Microswitch
US143M2 3 Pole with 2 Microswitches
US141MI 1 Pole with Microswitch & Indicator
US142MI 2 Pole with Microswitch & Indicators
US143MI 3 Pole with Microswitch & Indicators
US143M2I 3 Pole with 2 Microswitches & Indicators
US141N 1 Pole - Neutral
US14PAK Accessory - Multi-pole Assembly Kit
US14S1P Accessory - 1 Pole Microswitch
US14S3P Accessory - 3 Pole Microswitch
US14S3P2 Accessory - 3 Pole, 2 Microswitches
Accessories for Assembling Multiple Poles
Catalog Numbers and Descriptions For use with 22 x 58 mm Fuses up to 125A
CATALOG NO. DESCRIPTION
US221 1 Pole
US222 2 Pole
US223 3 Pole
US221I 1 Pole with Indicator
US222I 2 Pole with Indicators
US223I 3 Pole with Indicators
US221M 1 Pole with Microswitch
US222M 2 Pole with Microswitch
US223M 3 Pole with Microswitch
US223M2 3 Pole with 2 Microswitches
US221MI 1 Pole with Microswitch & Indicator
US222MI 2 Pole with Microswitch & Indicators
US223MI 3 Pole with Microswitch & Indicators
US223M2I 3 Pole with 2 Microswitches & Indicators
US22N 1 Pole - Neutral
US22PAK Accessory - Multi-pole Assembly Kit
US22S1P Accessory - 1 Pole Microswitch
US22S3P Accessory - 3 Pole Microswitch
US22S3P2 Accessory - 3 Pole, 2 Microswitches
US14PAK US22PAK Multi-pole Assembly Kit
US14S1P US22S1P Microswitch for single pole
US14S3P US22S3P Microswitch for 3 pole
US14S3P2 US22S3P2 2 Microswitches for 3 pole
H
H
Dimensions
DIMENSION
mm In mm In
A 26.5 1.04 35.0 1.38
B 53.0 2.09 70.0 2.76
C 79.5 3.13 105.0 4.13
E 107.0 4.21 124.0 4.88
F 3.80 0.15 3.80 0.15
G 94.0 3.70 103.0 4.06
H 76.5 3.01 76.5 3.01
J 6.50 0.26 6.5 0.26
K 45.0 1.77 45.0 1.77
Terminal screws: Phillips/slot head
Suggested screw torque: 50A - 35 lbs.-in.
125A - 45 lbs.-in.
Connector type: Pressure Plate
Wire range: US14 #2 to #14 (solid/stranded Cu)
US22 1/0 to #14 (solid/stranded Cu)
Load-break disconnect: No
US14 US22
H 9
H 9
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