Browse General Purpose Fuses
Mersen (formerly Ferraz Shawmut) general purpose fuses distributed by Gross Automation. Select a product below for specifications, datasheets, and ordering information.
Mersen general purpose fuses include Class J, Class RK1, Class CC, Class H, Class K, Class R, and Class T fuses for industrial, commercial, and residential overcurrent protection. Available in 250V and 600V ratings, these fuses meet UL, CSA, and IEC standards.
79 Products in General Purpose Fuses
1200VDC Square-Body Fuses
1200VDC Square-Body Fuses
2000VDC Square-Body Fuses Size 120
2000VDC Square-Body Fuses Size 120
2000VDC Square-Body Fuses Size 122
2000VDC Square-Body Fuses Size 122
3500-4000VDC Square-Body Fuses
3500-4000VDC Square-Body Fuses
URB/URD/URLSeries / 600V / Size 10x38
Ferraz Shawmut 600V Series URB/URD/URL PROTISTOR Fuses. Amp ratings from 0.10 Amps up to 30 Amps.
660-750VDC Square-Body Fuses Size 123
660-750VDC Square-Body Fuses Size 123
660-750VDC Square-Body Fuses Size 2x123
660-750VDC Square-Body Fuses Size 2x123
750VDC Square-Body Fuses Size 120
750VDC Square-Body Fuses Size 120
750VDC Square-Body Fuses Size 121
750VDC Square-Body Fuses Size 121
750VDC Square-Body Fuses Size 122
750VDC Square-Body Fuses Size 122
750VDC Square-Body Fuses Size 2x122
750VDC Square-Body Fuses Size 2x122
A2D & A6D Series / Class RK1 / Time Delay
Upgrade yesterday's circuits to today's Type 2 protection - Amp-Trap 2000 SmartSpot® A2D fuses now provide a visual open fuse indicator. With advanced material technology added to the existing product line the A2D provides today's IEC Type 2 "no damage" protection to existing mains, feeders, and branch circuits serving motor and non-motor loads. A2D fuses will open fast enough under short circuit conditions for maximum short circuit protection to prevent needless damage to motor starters, switches, and other circuit components, yet are slow enough to provide the long time delay for motor in-rush currents.
A2K & A6K Series / Class RK1 / Fast Acting
These fast-acting fuses deliver a high degree of current limitation - Current-limiting A6K fuses provide excellent protection where high available short circuit currents exist. These fast-acting fuses are particularly good for branch/feeder circuits and back-up protection.
A3T & A6T Series / Class T
These small dimension fuses are the right fit for a tight fit - Fast acting A3T Class T fuses combine two highly desirable features - high current limitation and a small physical size. Their unique dimensions prevent the substitution of other fuses with lower voltage ratings or current limiting capability. These fuses have glass melamine bodies for superior dimensional stability and catalog numbers stamped into the blades for permanent identification.
A4BQ Series / Class L / Time Delay
Put the highest current-limitation at your service - Amp-trap® 2000 A4BQ fuses are 20% more current limiting than any other Class L fuse on the market. When correctly coordinated, they bring a superior level of protection to service entrance equipment. Downstream circuit components have maximum protection against short circuit let-thru current. A4BQ's built-in, 4-second time delay characteristic (at 500% of rated current) accommodates harmless inrush currents with no nuisance opening.
A4BQ Series / Class L / Time Delay
Put the highest current-limitation at your service - Amp-trap® 2000 A4BQ fuses are 20% more current limiting than any other Class L fuse on the market. When correctly coordinated, they bring a superior level of protection to service entrance equipment. Downstream circuit components have maximum protection against short circuit let-thru current. A4BQ's built-in, 4-second time delay characteristic (at 500% of rated current) accommodates harmless inrush currents with no nuisance opening.
A4BT / Class L / 10-Second Time Delay
When your heavier loads need protection, Ferraz A4BT fuses won't let you down - The high interrupting rating of A4BT current limiting fuses is ideally suited for protecting mains, feeders, and general circuits. The 10-second time delay at 500% of fuse rating is ideal for large motors and other loads with a high inrush. A4BT fuses are suitable for DC applications up to 500VDC. An A4BT fuse can be applied to normal loads up to its full ampere rating to allow 100% rating of equipment.
A4J Series / Class J / Fast Acting
For excellent current limiting protection - A4J Class J fuses deliver excellent current-limiting protection to a wide variety of applications. Their unique dimensions prevent the substitution of other fuses with lower voltage ratings, interrupting ratings, or current-limiting capability.
A4J Series / Class J / Fast Acting
For excellent current limiting protection - A4J Class J fuses deliver excellent current-limiting protection to a wide variety of applications. Their unique dimensions prevent the substitution of other fuses with lower voltage ratings, interrupting ratings, or current-limiting capability.
A6Y-2B Series / Fast Acting Supplemental Protection
Ferraz A6Y "Type 2B" Amp-trap midget fuses are fast acting on short circuits, yet have sufficient time delay to offer supplemental protection for small motors, transformers, and control circuits. (Not for Branch Circuit Protection).
AG Series / Class G
Amp-Trap AG fuses fit right in a wide variety of industrial applications - The Ferraz Shawmut Amp-trap AG fuse series is a complete line of Class G fuses. With time delay (above 5A rating), AG fuses safely fit a wide variety of applications. Class G fuses are made in four physical sizes and provide good branch-circuit protection for lighting, heating, and appliance circuits.
AJT Series / Class J / Time Delay
Maximum Circuit Protection, Minimal Size - Amp-trap 2000® SmartSpot® AJT fuses now provide a visual open fuse indicator. With advanced material technology added to the existing product line the AJT fuse provides IEC Type "2" (No Damage) protection to main, feeder, and branch circuits, for all types of loads - yet, they require only half the mounting space needed for 600VAC Class RK fuses. AJT's time delay characteristics for handling harmless in-rush currents, its current limiting ability (the most current limiting UL fuse class!), and wide range of ratings (from 1 to 600 Amperes) - give excellent protection for all your applications. A mechanical Indicator/Microswitch Mount (EI) is available on blade-type (70 to 600A) fuses for visual or remote indication of open fuse condition.
AJT Series / Class J / Time Delay
Maximum Circuit Protection, Minimal Size - Amp-trap 2000® SmartSpot® AJT fuses now provide a visual open fuse indicator. With advanced material technology added to the existing product line the AJT fuse provides IEC Type "2" (No Damage) protection to main, feeder, and branch circuits, for all types of loads - yet, they require only half the mounting space needed for 600VAC Class RK fuses. AJT's time delay characteristics for handling harmless in-rush currents, its current limiting ability (the most current limiting UL fuse class!), and wide range of ratings (from 1 to 600 Amperes) - give excellent protection for all your applications. A mechanical Indicator/Microswitch Mount (EI) is available on blade-type (70 to 600A) fuses for visual or remote indication of open fuse condition.
ATDR Series / Class CC / Motor Duty
The best protection for today's small motors - Amp-trap 2000® ATDR small-dimension fuses can provide IEC Type 2 "no damage" protection to your facility's increasingly sensitive branch circuit components and small motors - minimizing the risk of fault-related damage. ATDR Class CC fuses deliver the best time delay characteristics in their class with excellent cycling ability for small motor loads.
ATDR Series / Class CC / Motor Duty
The best protection for today's small motors - Amp-trap 2000® ATDR small-dimension fuses can provide IEC Type 2 "no damage" protection to your facility's increasingly sensitive branch circuit components and small motors - minimizing the risk of fault-related damage. ATDR Class CC fuses deliver the best time delay characteristics in their class with excellent cycling ability for small motor loads.
ATM Series / 600VAC / 600VDC
Amp-trap midget fast-acting ATM fuses are rated 600V AC, with a 100kA interrupting rating. These ratings give the ATM a wide range of applications not covered by other midget fuses. In addition, ratings of 30/35, 30/40 and 30/50 amperes are offered for specific applications such as capacitor protection.
ATM Series / 600VAC / 600VDC
Amp-trap midget fast-acting ATM fuses are rated 600V AC, with a 100kA interrupting rating. These ratings give the ATM a wide range of applications not covered by other midget fuses. In addition, ratings of 30/35, 30/40 and 30/50 amperes are offered for specific applications such as capacitor protection.
ATMR Series / Class CC / General Purpose
Small fuse, big protection - Amp-trap ATMR fuses, in the Class CC family, are the smallest dimension 600V fuses suitable for branch circuit protection. The ATMR is a popular choice for economical protection of control circuits and control circuit transformers where available short circuit currents exceed 10,000 amperes. ATMR's rejection dimensions prevent substitution by lesser rated fuses. These fast acting fuses give current limiting protection to general circuits.
ATMR Series / Class CC / General Purpose
Small fuse, big protection - Amp-trap ATMR fuses, in the Class CC family, are the smallest dimension 600V fuses suitable for branch circuit protection. The ATMR is a popular choice for economical protection of control circuits and control circuit transformers where available short circuit currents exceed 10,000 amperes. ATMR's rejection dimensions prevent substitution by lesser rated fuses. These fast acting fuses give current limiting protection to general circuits.
ATQ Series / 500VAC / Time Delay
Amp-trap ATQ midget time-delay fuses are rated a full 500V AC with 42 ampere ratings from 1/10 to 30A. They are an excellent choice for supplemental protection of circuits where the available short circuit current does not exceed 10,000A. (Not for Branch Circuit Protection)
ATQR Series / Class CC / Transformer Duty
Take control of fault currents headed for your control transformer.
ATQR Series / Class CC / Transformer Duty
Take control of fault currents headed for your control transformer.
Miniature / Glass Fuses / Automotive Fuses
Automotive Fuses
BS88 Series / 690V / Size 000
PROTISTOR® FUSES 500-690V AC gRB/URB FROM 20 TO 400A SIZE: 000
General Purpose Fuses / Canadian
Canadian Fuses
CN Series / Class CA / 600V
Ferraz Shawmut Canadian Class CA and CB fuses are bolt-in type, interchangeable with older Canadian Form I/HRCI fuses for exact replacement. They are not interchangeable with other North American fuses. CA and CB fuses are full range current-limiting fuses with a high interrupting rating.
CNS Series / Class CB / 600V
Ferraz Shawmut Canadian Class CB fuses are bolt-in type, interchangeable with older Canadian Form I/HRCI fuses for exact replacement. They are not interchangeable with other North American fuses. CA and CB fuses are full range current-limiting fuses with a high interrupting rating.
CRN Series / Class H / 250V
Ferraz Shawmut CRN fuses are standard fuses, Type “D”, with 10kA short circuit rating.
CRS Series / Class H / 600V
Ferraz Shawmut CRS fuses are standard fuses, Type “D”, with 10kA short circuit rating.
Meters / DIRIS
The better your overcurrent protection, the easier it is to minimize downtime and repair bills. Ferraz Shawmut's Amp-Trap 2000 current-limiting fuses open in less than one-quarter cycle to provide the Type 2 protection that prevents costly equipment damage.
General Purpose Fuses / European IEC
European IEC Fuses
FES Series / Class C / 600V
Ferraz Shawmut Class C fuses have British standard (BS88) dimensions and are exact replacements for the British fuses and older HRCII-C fuses. Class C fuses are not dimensionally or electrically interchangeable with other North American fuses. They feature ceramic bodies and bolt-in mounting. They are for short-circuit protection only, in motor controllers, for example, where overload protection is provided by an overload relay.
FESC Series / Class C / 600V
Ferraz Shawmut Class C fuses have British standard (BS88) dimensions and are exact replacements for the British fuses and older HRCII-C fuses. Class C fuses are not dimensionally or electrically interchangeable with other North American fuses. They feature ceramic bodies and bolt-in mounting. They are for short-circuit protection only, in motor controllers, for example, where overload protection is provided by an overload relay.
Power Distribution Blocks / Finger-Safe Design (175-840A)
The better your overcurrent protection, the easier it is to minimize downtime and repair bills. Ferraz Shawmut's Amp-Trap 2000 current-limiting fuses open in less than one-quarter cycle to provide the Type 2 protection that prevents costly equipment damage.
FS-POP
Ferraz Shawmut Free-Standing Floor Display
FS-POPKIT
The Ferraz Shawmut FS-POPKIT is intended for the customer or distributor that already has an existing slatwall in their facility.
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Medium Voltage Fuses / Power Fuses (formally from GE)
The better your overcurrent protection, the easier it is to minimize downtime and repair bills. Ferraz Shawmut's Amp-Trap 2000 current-limiting fuses open in less than one-quarter cycle to provide the Type 2 protection that prevents costly equipment damage.
GFN Series / Indicating Time Delay Fuse
GFN midget indicating fuses are available in 34 ratings from 1/10A through 30A. These time-delay fuses have built-in blown fuse indicators which pop out at the end of the fuse to visually indicate when the fuse has operated to open the circuit. Indicators may be used to trip a switch for remote as well as visual annunciation. (Not for Branch Circuit Protection).
gRB Series / 690V / Size 00
Extremely high Interrupting rating Fuses: Protection of power Semiconductors according to IEC 269.1 and 4
GRB Series / 800V / Size 27x60
Ferraz products distributed by Gross Automation | Brookfield, WI | Phone: (262) 252-1600 Fax: (262) 252-1616
gRB-URB Series / 690V / Size 17x49
690V gRB-URB FROM 12 TO 100A SIZE: 17 x 49
gRB-URB Series / 690V / Size 000
Ferraz products distributed by Gross Automation | Brookfield, WI | Phone: (262) 252-1600 Fax: (262) 252-1616
GSMR
Ferraz Shawmut Midget and Class CC fuse rack is an automatic feed- ing system for standard 10 packs of midget and Class CC fuses. Included is a Ferraz Shawmut sign for easy brand identification.
IL Indicator
The new “IL” indicator, provides a blown fuse indication system which does not sacrifice the excellent I2t characteristics of Ferraz fuses. Its low voltage design requires just 0.9 volts to activate the indicator, thus insuring reliable fuse performance under all conditions. The red pop up button is located in the center of the fuse body for ease of visibility and optimum voltage isolation. Interference with buss bar and cable connection is significantly less than other designs. The addition of the “IL” indicator provides blown fuse indication on virtually all Ferraz fuses. Optional auxiliary microswitches for remote signaling are also available for use with the “IL” indicator.
General Purpose Fuses / Midget Fuses
Midget Fuses
NIT HRCII Fuses / 600V
The Ferraz Shawmut Canadian NS fuse series has offset contacts with British (BS88) dimensions. The NS series has diagonally offset contacts with British standard dimensions. Neither fuse is dimensionally interchangeable with other North American fuses. They are for short-circuit protection only, in motor controllers, for example, where overload protection is provided by an overload relay.
NRN & NRS Series / Class H / 250V
Ferraz Shawmut NRN (250V) and NRS (600V) fuses are standard non-time delay fuses, with a 10kA short circuit rating. 250 Volt NRN15 through NRN60 fuses are certified as Type "P" fuses, satisfying the Canadian Electrical Code for low melting-point non-time delay fuses. Also qualifying for Type "P" are OTN15 through OTN60, which are Class K-5 fuses with a 50kA short circuit rating (found in the OT/OTS fuse section).
NS HRCII Fuses / 440V
The Ferraz Shawmut Canadian NS fuse series has offset contacts with British (BS88) dimensions. The NS series has diagonally offset contacts with British standard dimensions. Neither fuse is dimensionally interchangeable with other North American fuses. They are for short-circuit protection only, in motor controllers, for example, where overload protection is provided by an overload relay.
OT, OTN & OTS Series / Class K5 / One-Time
OT, OTN and OTS general purpose fuses provide low cost protection for feeder and branch circuits serving lighting, heating, and other non-motor loads. OT, OTN and OTS fuses will safely interrupt available short circuit currents up to 50,000 amperes in all ratings.OT, OTN and OTS fuses are not rejection fuses – care should be taken to ensure that replacement fuses do not have lower interrupting ratings than original fuses.
OTM Series / 250VAC / One-Time
One-time OTM midget fuses provide low-cost protection for 250 volt AC general purpose lighting, heating, control circuits, etc. where time delay is not required. (Not for Branch Circuit Protection).
Features
Amp-trap 2000 SmartSpot AJT fuses now provide a visual open fuse indicator. With advanced material technology added to the existing product line the AJT fuse provides IEC Type 2 protection to main, feeder, and branch circuits, for all types of loads, yet they require only half the mounting space needed for 600VAC Class RK fuses.
PCT Series - Time Delay
Ferraz Shawmut's new PCT series of fast-acting direct-mountable fuses addresses the increasing need for electrical protection at the PC board as current and voltage requirements push higher. These fuses help printed circuit board manufacturers reduce parts by eliminating clips and fuse blocks and allowing automated assembly. PCT fuses can be used for the protection of main frame power boards, small circuit breakers with low interrupting ratings and other critical components. PCT fuses bring great increased ampere, voltage and interrupting ratings to the board itself and are UL Component Recognized.
RF Series / Class H / 250V Renewable Fuse
RF general purpose fuses are suitable for application where available short circuit currents do not exceed 10,000 amperes. RF renewable fuses use matched RL die-cut zinc links from 1 to 600 amperes in 32 ratings.
RFS Series / Class H / 600V Renewable Fuse Link
RFS general purpose fuses are suitable for application where available short circuit currents do not exceed 10,000 amperes. RFS renewable fuses use matched RLS die-cut zinc links from 1 to 600 amperes in 32 ratings.
RL Series / Class H / 250V Renewable Fuse Link
RF general purpose fuses are suitable for application where available short circuit currents do not exceed 10,000 amperes. RF renewable fuses use matched RL die-cut zinc links from 1 to 600 amperes in 32 ratings.
RLS Series / Class H / 600V Renewable Fuse Link
RFS general purpose fuses are suitable for application where available short circuit currents do not exceed 10,000 amperes. RFS renewable fuses use matched RLS die-cut zinc links from 1 to 600 amperes in 32 ratings.
SBS Series / 600VAC / General Purpose
Unique dimensions for today's smaller equipment and components - Fast-acting general purpose SBS fuses were developed in response to the industry's demand for smaller equipment and components. They are the only fuses in their size with a full 600 volt AC rating for all ampere ratings by Underwriters Laboratories standard 198G and CSA No. 59.2, and are the only fuses of this size with an interrupting rating of 100kA RMS, compared to 10kA on other brands.
TR & TRS Series / Class RK5 / Time Delay
The industry's most popular fuse for motor circuit protection - Tri-Onic® SmartSpot® TR fuses now provide a visual open fuse indicator. With advanced material technology added to the existing product line the TR current limiting time delay fuses are engineered for overcurrent protection of motors and transformers, service entrance equipment, feeder and branch circuits. Tri-onic's proven time delay characteristic safely handles harmless starting currents and inrush currents associated with today's motors and transformers.
TRM Series / 250VAC / Time Delay
Ferraz Tri-onic TRM time-delay midget fuses are rated 250 volts AC and are offered in 36 ampere ratings from 1/10A to 30A. They have 12 seconds time delay at 200% rating to provide supplemental protection of small motors, small transformers and other high inrush loads, plus many other 250 volt applications. (Not for Branch Circuit Protection)
TRS-DC Series / Class RK5 / DC Rated
DC rated for tough DC applications - The Tri-onic DC fuse series is designed for DC circuit protection in surface and underground mines. The TRS-DC is MSHA approved and meets the industry's most severe third party requirements for 600VDC rated fuses. The TRS-DC is a time-delay fuse with essentially the same time-current characteristic as the standard Tri-onic.
General Purpose Fuses / UL Power Fuses
The better your overcurrent protection, the easier it is to minimize downtime and repair bills. Ferraz Shawmut's Amp-Trap 2000 current-limiting fuses open in less than one-quarter cycle to provide the Type 2 protection that prevents costly equipment damage.
URB, URQ & URS Series / 690 - 1000V / Size 27x60
Ferraz products distributed by Gross Automation | Brookfield, WI | Phone: (262) 252-1600 Fax: (262) 252-1616
URC & URD Series / 690V / Size 14x51, 22x58
Ferraz products distributed by Gross Automation | Brookfield, WI | Phone: (262) 252-1600 Fax: (262) 252-1616
URE, URGS, URZ Series / 250V / Size 10x28
PROTISTOR® FUSES 250V AC URE/URGS/URZ from 5 up to 180A SIZES: 10 X 28 - 17 X 27
URE, URS, & URT Series / 690V / Size 10x51, 17x49
PROTISTOR® FUSES 690V URE/URS/URT from 5 to 160A SIZES: 10 X 51 - 17 X 49 - 2 X 17 X49
URGD Series / 690V / Size 27x60
Ferraz products distributed by Gross Automation | Brookfield, WI | Phone: (262) 252-1600 Fax: (262) 252-1616
URGG, URGH Series / 250V / Size 36x27
PROTISTOR® FUSES 250V URGG/URGH from 50 to 1050A SIZES: 36 X 27 - 2 X 36 X 27
URR, URGL, URU, URGM Series / 690V / Size 36x55
PROTISTOR® FUSES 690V URR/URGL/URU/URGM from 75 to 800A SIZES: 36 X 55 & 2 X 36 X 55