Mersen ATQR-210 Class CC Time-...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$58.57
Mersen ATQR-210 Class CC Time-Delay Ferrule Fuse, Amp-Trap 2000

Mersen ATQR-210 Class CC Time-Delay Ferrule Fuse, Amp-Trap 2000

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Model: ATQR2/10

In Stock (leaves warehouse same day if ordered before 3pm ET)

$58.57
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Mersen ATQR-210 Class CC Time-Delay Ferrule Fuse, Amp-Trap 2000

The Mersen ATQR-210 is a Class CC time-delay ferrule fuse from the Amp-Trap 2000® family, engineered for the high inrush currents produced by control transformers, solenoids, and other inductive loads. This listing covers the ATQR-210 platform across a Motor FLA selection ranging from 0.187A to 7.5A (9 amperage options: 0.187A, 0.2A, 1.125A, 1.4A, 2.25A, 4.5A, 5.6A, 6.25A, and 7.5A), so you can match the exact fuse to your motor or control-circuit load. Every option in the family shares the same core construction and ratings: 600V AC and 300V DC (UL), a 200 kA AC maximum interrupting rating, and a GMG insulating body, providing dependable overcurrent protection for the branch circuits of electrical distribution systems. Terminals are tin-plated copper ferrules designed for secure clip-mount installation, and the fuse is RoHS compliant.

Key Features

  • Motor FLA Range: available across 9 amperage options from 0.187A up to 7.5A, letting you select the precise rating for your control transformer, solenoid, or motor-control circuit.
  • Time-Delay Characteristic: engineered for the high inrush currents of control transformers, solenoids, and other inductive loads without nuisance opening.
  • Ferrule Terminal Connection: tin-plated copper ferrule terminals designed for secure clip-mount installation.
  • Class CC Fuse Design: Mersen Amp-Trap 2000 Class CC construction provides superior branch-circuit protection.
  • Dual Voltage Rating: rated 600V AC and 300V DC (UL) for use across both AC and DC systems.
  • High Interrupting Capacity: 200 kA AC maximum interrupting rating (I1) for demanding fault-current conditions.
  • Frequency Rating: suitable for 50/60 Hz electrical systems.
  • Body Construction: GMG insulating body material supports durable, long-term performance.

Certifications & Compliance

  • RoHS Compliant

Technical Specifications

  • Motor FLA Options: 0.187A, 0.2A, 1.125A, 1.4A, 2.25A, 4.5A, 5.6A, 6.25A, 7.5A
  • Connection/Terminal Type: Ferrule
  • Mounting: Clip
  • Connection/Terminal Material: Tin-Plated Copper
  • AC Max I.R./Breaking Capacity (I1): 200 kA
  • ROHS Compliant: Yes
  • Frequency: 50/60 Hz
  • Rated Voltage AC (UL): 600 V
  • Speed/Characteristic: Time Delay
  • AC or DC: AC/DC
  • Rated Voltage DC (UL): 300 V
  • Fuse Class: Class CC
  • Body/Insulating Material: GMG

Typical Applications

  • Control Transformer Circuits
  • Solenoid and Inductive Load Protection
  • Branch Circuits of Electrical Distribution Systems
  • Industrial and Commercial Panelboards
  • Motor Control and Machine Protection Circuits

Why Mersen?

Mersen's Amp-Trap 2000® ATQR Class CC fuses combine a durable GMG insulating body, tin-plated copper ferrule terminals, and a 200 kA AC interrupting rating to deliver dependable, code-compliant overcurrent protection across a full range of Motor FLA options. The time-delay design is purpose-built to ride through the inrush of control transformers and solenoids without nuisance opening, making it a trusted choice for professional electrical and panel-building applications. With amperage options spanning 0.187A to 7.5A, the ATQR-210 series lets electricians and panel builders standardize on one trusted Class CC platform for a wide range of inductive-load protection needs. RoHS compliance further supports use in environmentally regulated installations.

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Manufacturer Resources

Mersen Product Catalog

Product Specs

Connection Terminal Type:
Ferrule
Mounting Method:
Clip
Connection/Terminal Material:
Tin-Plated Copper
AC Max I.R./Breaking Capacity: I1:
200 kA
ROHS Compliant:
Yes
Frequency (Hz):
50/60 Hz
Rated voltage AC UL:
600 V
Speed/Characteristic:
Time Delay
AC or DC:
AC/DC
Rated voltage DC UL:
300 V
Fuse Class:
Class CC
Body/Insulating Material:
GMG
list_batch:
MERSEN-20260825
Department:
Electrical
Product Group:
Circuit Protection
Product Type:
Time-Delay Fuse
Product Material:
GMG
Product Finish:
Tin-Plated Copper
Connection Type:
Ferrule
Voltage Rating:
600V
Series:
Amp-Trap 2000
Listing:
RoHS Compliant
Product Subgroup:
Fuses

Mersen ATQR2/10 – Frequently Asked Questions

1) Which amp ratings do the Mersen ATQR Class CC time-delay fuses come in?
The Mersen ATQR Amp-Trap 2000 time-delay ferrule fuses are offered in nine ratings: 0.187A (ATQR3/16), 0.2A (ATQR2/10), 1.125A (ATQR1-1/8), 1.4A (ATQR1-4/10), 2.25A (ATQR2-1/4), 4.5A (ATQR4-1/2), 5.6A (ATQR5-6/10), 6.25A (ATQR6-1/4), and 7.5A (ATQR7-1/2). Mersen catalogs these in fractional form, so if your drawing calls for an ATQR 5-6/10 that is the 5.6A fuse.
2) Will a Class CC ATQR fuse drop into my existing fuse holder?
It fits any holder or block built for Class CC rejection-style fuses. The ATQR uses ferrule terminals in tin-plated copper and is clip-mounted, so it seats in standard Class CC fuse clips. Class CC holders are rejection type by design, which means a non-CC midget fuse of the same physical size will not seat in them, and the ATQR will not seat in a plain non-rejection midget holder.
3) Can I use the Mersen ATQR fuse on a DC circuit?
Yes, it carries both ratings: 600V AC and 300V DC under UL. On a DC control circuit keep the system voltage at or below 300V. On AC it is good to 600V at 50/60 Hz.
4) Why does my control transformer fuse keep blowing on energization, and will a time-delay fuse fix it?
Control transformers and solenoids draw a large inrush on the first half cycle, and a fast-acting fuse sized to the steady-state load will open on that inrush. The ATQR is a time-delay fuse built to ride through that inrush without nuisance opening while still clearing a real fault. If your current fuse is a fast-acting midget, that is the likely cause of the repeat openings.
5) Can I substitute a glass tube or midget fuse for a Class CC ATQR?
No. A glass tube fuse like the Littelfuse AGA5 or the AGU series, and a midget fast-acting fuse like the Littelfuse BLF rated 250V, are different animals. They are not Class CC, will not seat in a Class CC rejection holder, and the BLF is fast-acting rather than time delay. Where the panel schedule calls out Class CC, use the ATQR or another Class CC fuse.
6) Can I use a Littelfuse BLF midget fuse in place of a Mersen ATQR Class CC fuse?
No. The Littelfuse BLF series is a midget fast-acting fuse rated 250V, while the Mersen ATQR-210 is a Class CC time-delay fuse rated 600V AC and 300V DC. Two things rule the swap out: the BLF is fast-acting and will not ride through control transformer or solenoid inrush the way the time-delay ATQR does, and its 250V rating is below the 600V AC circuits the ATQR is intended for. Class CC holders also use a rejection feature that a plain midget body does not satisfy.
7) Is the Littelfuse CCMR040 a direct replacement for a Mersen ATQR Class CC time-delay fuse?
Both are Class CC time-delay fuses, so they share the same fuse class and rejection-style ferrule format. The difference is amperage: the Littelfuse CCMR040 is a 40A fuse, while the Mersen ATQR-210 family spans Motor FLA options from 0.187A to 7.5A. For a control transformer or solenoid circuit in that low-amp band, pick the matching ATQR rating; the CCMR040 covers a much larger load.
8) Is the ATQR fuse rated for a high available fault current panel?
Its AC maximum interrupting rating is 200 kA, so it covers branch circuits in industrial and commercial distribution equipment where available fault current is high. Confirm the 200 kA figure meets or exceeds the available fault current calculated at your panel.
9) How do I pick the right ATQR amp rating for a motor control circuit?
Select against the motor full load amps, which is how these are listed: the nine options run 0.187A, 0.2A, 1.125A, 1.4A, 2.25A, 4.5A, 5.6A, 6.25A and 7.5A. Match the fuse to the FLA on the motor nameplate or the VA of the control transformer, and stay inside the overcurrent sizing your panel schedule or NEC calculation calls for.
10) What is the difference between the Mersen ATQR and a Littelfuse AGU or AGA glass tube fuse?
The Littelfuse AGU and AGA5 are AG-style glass tube fuses, typically used in automotive and low-voltage electronic circuits. The Mersen ATQR-210 is a Class CC time-delay fuse with tin-plated copper ferrule terminals for clip mounting, rated 600V AC and 300V DC with a 200 kA AC interrupting rating for branch-circuit and motor-control duty. If the drawing calls for Class CC branch-circuit protection, a glass tube fuse is not the same part.
11) For a 0.5A 600V metering circuit, should I order the Mersen ATQR or the Square D PowerLogic fuse pack?
For a PowerLogic energy meter, the Square D PowerLogic Energy Meter Fuse Pack is the matched part - a set of three 0.5A 600V fuses sized for metering voltage inputs. The Mersen ATQR-210 is a Class CC time-delay fuse meant for control transformers, solenoids, and motor-control branch circuits, with Motor FLA options starting at 0.187A. Both sit at 600V, but the ATQR time-delay curve is built for inrush rather than instrument-transformer sensing.
12) Is the Mersen ATQR fuse RoHS compliant for a regulated plant spec?
Yes, the ATQR Amp-Trap 2000 ferrule fuse is RoHS compliant, which covers it for plants and export equipment carrying that requirement. The body is a GMG insulating material with tin-plated copper ferrules.
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Can I return it if it doesn’t work for me?
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Does the Mersen ATQR2/10 come with a warranty?
Absolutely. The Mersen ATQR2/10 is backed by a manufacturer’s warranty. For full warranty terms, check the product documentation or Contact Us.
How do I get technical support or installation help for the Mersen ATQR2/10?
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