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MERSEN Fuse: Class RK1, A2D-R Series, Time-Delay, 12 A, 250 V AC, 250 V DC - Time-Delay Cylindrical Fuses
MERSENTime-Delay Cylindrical Fuses

MERSEN Fuse: Class RK1, A2D-R Series, Time-Delay, 12 A, 250 V AC, 250 V DC

The MERSEN A2D-R Series Class RK1 Time-Delay Cylindrical Fuse (MPN A2D12R) is a 12 A, 250 V AC and 250 V DC indicating fuse. This industrial fuse is designed for overcurrent protection with time-delay characteristics.

SKU 3G-OTH-127573

Brand
MERSEN
Item
Fuse: Class RK1, A2D-R Series, Time-Delay, 12 A, 250 V AC, 250 V DC
Category
Time-Delay Cylindrical Fuses
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Local availability & support — Singapore

Local office
20 Woodlands Link #09-05, Singapore 738733
Phone
+65 8878 8355
Delivery
Same-day or next-business-day delivery within Singapore for in-stock items; 7–14 days for factory-order parts from Europe.
Payment
Invoicing in SGD. PayNow, bank transfer, and corporate PO accepted.
Ships to
Singapore

Technical Specifications

MERSEN
Manufacturer Part Number
A2D12R
Type
A2D-R Series, Time-Delay, 12 A, Indicating
AC
250 V
DC
250 V

Technical Documents

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MERSEN Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The MERSEN A2D-R Series Class RK1 Time-Delay Cylindrical Fuse (MPN A2D12R) is a 12 A, 250 V AC and 250 V DC indicating fuse. This industrial fuse is designed for overcurrent protection with time-delay characteristics.

Frequently Asked Questions

What is the MERSEN A2D12R fuse used for?

The MERSEN A2D12R is a Class RK1 time-delay cylindrical fuse used for overcurrent protection in industrial equipment. Its 12 A rating and 250 V AC/DC capability make it suitable for motor circuits, transformers, and other inductive loads where inrush currents occur.

What are the specifications of the MERSEN A2D12R fuse?

The MERSEN A2D12R is a Class RK1, A2D-R Series, time-delay indicating fuse rated at 12 A, 250 V AC and 250 V DC. It provides overcurrent protection with a time-delay characteristic to handle temporary surges without nuisance opening.

Where to buy MERSEN A2D12R fuses worldwide?

3G Electric supplies the MERSEN A2D12R fuse worldwide. As a global industrial distributor, we handle full logistics, customs clearance, and delivery to your location. Contact us for availability and lead time on this Class RK1 time-delay fuse.

How to select the correct MERSEN A2D-R fuse for an application?

Select the MERSEN A2D-R fuse based on the circuit's continuous current (12 A for the A2D12R), voltage rating (250 V AC/DC), and the need for time-delay characteristics. Ensure the Class RK1 rejection feature matches the fuse holder to prevent substitution with lower-rated fuses.

Used in

Common applications for MERSEN
Power electronics protection — MERSEN A70Q series semiconductor fuses in variable frequency drives for motor control.
Surge protection for industrial panels — MERSEN STP480D07 SPDs in three-phase 480V AC distribution boards.
Control circuit overcurrent protection — MERSEN ATM series midget fuses in PLC and instrumentation cabinets.
Power distribution in manufacturing — MERSEN FSPDB4A finger-safe blocks in motor control centers for wire management.
DC bus protection in renewable energy — MERSEN A30QS series fuses in solar inverter DC inputs.
High-voltage semiconductor protection — MERSEN A70Q series fuses in welding equipment power supplies.

MERSEN Products

3G Electric supplies MERSEN time-delay cylindrical fuses. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

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Compatible alternatives & equivalents

Cross-referenced by specification & description
MERSEN Fuse: Class RK1, A2D-R Series, Time-Delay, 8 A, 250 V AC, 250 V DC, Indicating (MPN A2D8R)
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MERSEN Fuse: Class RK1, A2D-R Series, Time-Delay, 8 A, 250 V AC, 250 V DC, Indicating (MPN A2D8R)
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MERSEN Fuse: Class RK1, A2D-R Series, Time-Delay, 15 A, 250 V AC, 250 V DC, Indicating (MPN A2D15R)
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MERSEN Fuse: Class RK1, A2D-R Series, Time-Delay, 2.25 A, 250 V AC, 250 V DC, Non-Indicating (MPN A2D2-1/4R)

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