Browse Accessories
Mersen (formerly Ferraz Shawmut) accessories distributed by Gross Automation. Select a product below for specifications, datasheets, and ordering information.
Mersen accessories include blown fuse indicators (the Trigger Indicator, Trigger Actuator, AOS add-on switches and IL indicator), Protistor and PSC fuse microswitches, fuse pullers and clip clamps, fuse reducers, box covers, the DFC3M safety puller and DRM DIN rail adapter for fuse blocks, and point of sale displays.
35 Products in Accessories
250V 30A Clip Clamp
Ferraz Shawmut Fuse Clip Clamps are used to clamp fuse clips together onto a fuse ferrule or blade. An easy twist of the cap tightens the jaws against the clip, preventing heating by reducing resistance at the point where fuse and clip make contact. This helps prevent loss of spring tension due to annealing from overheating.
250V 60A Clip Clamp
Ferraz Shawmut Fuse Clip Clamps are used to clamp fuse clips together onto a fuse ferrule or blade. An easy twist of the cap tightens the jaws against the clip, preventing heating by reducing resistance at the point where fuse and clip make contact. This helps prevent loss of spring tension due to annealing from overheating.
250/600V 100, 200, 400, 600 Amp Clip Clamps
Ferraz Shawmut Fuse Clip Clamps are used to clamp fuse clips together onto a fuse ferrule or blade. An easy twist of the cap tightens the jaws against the clip, preventing heating by reducing resistance at the point where fuse and clip make contact. This helps prevent loss of spring tension due to annealing from overheating.
250V Class H & K
Ferraz Shawmut Fuse Reducers allow the use of lower rated fuses in existing equipment having clips with higher ampere ratings. The use of closer rated time-delay fuses can improve circuit protection. For example, renewable or one-time fuses feeding a motor can be replaced with fuses sized closer to the motor nameplate current. Non-ejection reducers will allow Class H, K or R fuses to fit Class H or K clips. Rejection-type reducers will allow only Class R fuses to fit Class R clips or only Class J fuses to fit Class J clips.
250V Class R
Ferraz Shawmut Fuse Reducers allow the use of lower rated fuses in existing equipment having clips with higher ampere ratings. The use of closer rated time-delay fuses can improve circuit protection. For example, renewable or one-time fuses feeding a motor can be replaced with fuses sized closer to the motor nameplate current. Non-ejection reducers will allow Class H, K or R fuses to fit Class H or K clips. Rejection-type reducers will allow only Class R fuses to fit Class R clips or only Class J fuses to fit Class J clips.
600V Class H & K
Ferraz Shawmut Fuse Reducers allow the use of lower rated fuses in existing equipment having clips with higher ampere ratings. The use of closer rated time-delay fuses can improve circuit protection. For example, renewable or one-time fuses feeding a motor can be replaced with fuses sized closer to the motor nameplate current. Non-ejection reducers will allow Class H, K or R fuses to fit Class H or K clips. Rejection-type reducers will allow only Class R fuses to fit Class R clips or only Class J fuses to fit Class J clips.
600V Class J
Ferraz Shawmut Fuse Reducers allow the use of lower rated fuses in existing equipment having clips with higher ampere ratings. The use of closer rated time-delay fuses can improve circuit protection. For example, renewable or one-time fuses feeding a motor can be replaced with fuses sized closer to the motor nameplate current. Non-ejection reducers will allow Class H, K or R fuses to fit Class H or K clips. Rejection-type reducers will allow only Class R fuses to fit Class R clips or only Class J fuses to fit Class J clips.
600V Class R
Ferraz Shawmut Fuse Reducers allow the use of lower rated fuses in existing equipment having clips with higher ampere ratings. The use of closer rated time-delay fuses can improve circuit protection. For example, renewable or one-time fuses feeding a motor can be replaced with fuses sized closer to the motor nameplate current. Non-ejection reducers will allow Class H, K or R fuses to fit Class H or K clips. Rejection-type reducers will allow only Class R fuses to fit Class R clips or only Class J fuses to fit Class J clips.
AOS-S / AOS-Q
Add-On-Switches contain one single-pole doublethrow contact rated 4 amperes resistive and 1 ampere inductive at 250V AC maximum. Two versions of the Add-On-Switch are available. Catalog number AOS-S has screw terminals. Catalog number AOS-Q accommodates push-on connectors.
Accessories / Blown Fuse Indicators
Devices like box covers, fuse reducers, fuse pullers and clip clamps may seem inconsequential, but well-designed circuit protection accessories can increase worker safety and even improve circuit protection. Find them all right here.
Accessories / Box Covers Units
Devices like box covers, fuse reducers, fuse pullers and clip clamps may seem inconsequential, but well-designed circuit protection accessories can increase worker safety and even improve circuit protection. Find them all right here.
CKA 4-11/16" Square Box
Ferraz Shawmut Box Covers fit all standard size electrical boxes with a variety of plug fuse, switch and receptacle combinations. They provide easy access to local protection and control of 125V motors and other equipment. Long life corrosion-protected steel bases.
COU, CRU, CSU, 2-1/4" Handy Box
Ferraz Shawmut Box Covers fit all standard size electrical boxes with a variety of plug fuse, switch and receptacle combinations. They provide easy access to local protection and control of 125V motors and other equipment. Long life corrosion-protected steel bases.
COW, CRW, CSW, 2-3/4" Switch Box
Ferraz Shawmut Box Covers fit all standard size electrical boxes with a variety of plug fuse, switch and receptacle combinations. They provide easy access to local protection and control of 125V motors and other equipment. Long life corrosion-protected steel bases.
COY, CRY, CSY, CCY, CTY, 4" Square Box
Ferraz Shawmut Box Covers fit all standard size electrical boxes with a variety of plug fuse, switch and receptacle combinations. They provide easy access to local protection and control of 125V motors and other equipment. Long life corrosion-protected steel bases.
CSX, CRX, COX, 4" Octagon Box
Ferraz Shawmut Box Covers fit all standard size electrical boxes with a variety of plug fuse, switch and receptacle combinations. They provide easy access to local protection and control of 125V motors and other equipment. Long life corrosion-protected steel bases.
Dead-Front Covers/Pullers for Class CC & Midget (10x38mm) Fuses - DFC3M Series
Ferraz Shawmut DFC Dead-Front Fuse Covers snap on to individual fuses installed in fuse blocks, covering exposed live clips and terminals and reducing accidental contact by personnel. They are sized to fit Class G, H, J, K, R, CC or Midget fuses for increased safety and (optional) open-fuse indication. All DFC Dead-Front Fuse Covers are reusable when a fuse is replaced - simply detach from the open fuse and re-attach to the new replacement fuse. On indicator models an orange indicator light will illuminate to indicate an open fuse. DFC Fuse Cover ends can be easily cut to accommodate existing wiring, safety switches or special installations. A blank label is provided with each DFC to write in circuit or fuse information.
DRM DIN Rail Adapter (303 Series Midget & Class CC)
The DIN rail adapter, DRM, provides quick mounting for all Ferraz Shawmut 303 Series Midget and Class CC fuse blocks to all symmetrical 35mm DIN or asymmetrical 32mm “G” rail. A DRM adapter is attached to each pole with the screw provided. The DRM is molded of black polycarbonate and is mounted or dismounted from the rail simply by depressing the finger pull.
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.
Accessories / Fuse Pullers / Clip Clamps
Devices like box covers, fuse reducers, fuse pullers and clip clamps may seem inconsequential, but well-designed circuit protection accessories can increase worker safety and even improve circuit protection. Find them all right here.
Accessories / Fuse Reducers
Devices like box covers, fuse reducers, fuse pullers and clip clamps may seem inconsequential, but well-designed circuit protection accessories can increase worker safety and even improve circuit protection. Find them all right here.
GSFC
Ferraz Shawmut Spare Fuse Cabinets provide dedicated storage space for spare fuses. Heavy duty all-welded steel construction with primed and painted gray finish combines good appearance and easy maintenance. A positive latching handle with cylinder lock and two keys will prevent unauthorized access.
GSGFD
The Ferraz Shawmut Glass Fuse Display, GSGFD, gives high visibility to fuses at the point of purchase. The GSGFD consists of a sturdymetal display rack with wall mounting hardware, 48 slots (each holds 12 standard 5-pack boxes for a possible display total of 576 boxes or 2,880 glass fuses), an attractive header sign, and a laminated glass fuse cross reference guide for quick and easy selection.
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.
MFD
The Ferraz Shawmut miniature fuse display, MFD, is a compact and organized solution to hold only the most popular glass fuses available. The display can hold up to 300 fuses and is made from plastic which contains individual slots for supporting standard glass fuse packages. Included with the MFD is a paper insert with Ferraz Shawmut logo and cross reference list.
Nylon Fuse Pullers
Ferraz Shawmut Nylon Fuse Pullers are fully insulated, made of high-dielectric, high impact nylon with no-slip handles and protective finger stops for greater safety when inserting fuses. Yellow color for safety.
Plastic Fuse Pullers
Ferraz Shawmut Plastic Fuse Pullers are fully insulated, made of high-dielectric, reinforced plastic with notched handles to provide a safe grip. Stronger and more durable than fiber pullers, they are permanently marked with the recommended fuse ampere range. Yellow color for safety.
Accessories / Point of Sale Displays
Devices like box covers, fuse reducers, fuse pullers and clip clamps may seem inconsequential, but well-designed circuit protection accessories can increase worker safety and even improve circuit protection. Find them all right here.
Protistor Fuse Microswitch
Microswitch systems for round and square body fuses (not for PSC Fuses)
PSC microswitch
Microswitch systems adapted to the following fuses:
Shawmut Trigger
The Shawmut Trigger Indicator is a field-mountable blown-fuse indicator which is wired parallel with the fuse to be monitored. The striker pin exerts a static force of one pound and be used to actuate a switch. It is available in 130 volt (TI-130), 600 volt (TI-600), and 1500 (TI-1500) ratings. The TI-600 Trigger is a UL Listed accessory. The Shawmut Trigger is not fuse and should only be used in parallel with fuses rated 70A or higher. To mount the Trigger, use two midget fuse clips (for 13/32" diameter fuses) found in the Fuse Clip section.
Trigger Actuator
The Trigger Actuator (catalog number suffix TA) has two functions and is an option available on many Amp-trap fuses. First, it provides visual indication of an open fuse and second, it provides a mount for an Add-On-Switch (AOS-) which can indicate a blown fuse via a signal light or initiate appropriate control action. The Trigger Actuator has no measurable I2t or arc voltage effect on fuses rated 65A or higher. It will add 2 to 5 amperes of long term rating and requires a minimum circuit voltage of 5 to 10 volts to activate.
Trigger Indicator
The Trigger Indicator (Catalog Number suffix TI) is available on many blade type fuses, primarily Form 101 semiconductor fuses and some Class L fuses. The TI allows blown fuses to be identified visually, eliminating the need for resistance or continuity testing.
Modifying a listed panel? Our UL 508A shop keeps repaired or modified panels within UL 508A and marks the SCCR.