Bussmann
Bussmann MDL-20-R 20A 32VAC Time Delay Glass Fuse 5PK
A pack of five 20 A, 32 V AC time-delay glass fuses for circuit protection
- 20 A rating protects circuits up to 20 amps
- 32 V AC voltage rating suits low-voltage systems
- Time-delay design tolerates brief inrush currents
- Glass cylindrical body allows visual inspection
- Pack of five provides ready replacements
Circuit protection for low-voltage AC equipment
This pack contains five cylindrical glass fuses rated at 20 A and 32 V AC. The MDL series uses a time-delay element to withstand brief inrush currents without opening, making the fuses suitable for inductive loads such as small motors, transformers and solenoids in generator control panels and similar equipment.
Sustained overload response
Under a continuous overload the fuse element melts after a delay proportional to the excess current, providing discrimination against harmless transient surges. The glass body allows visual confirmation of a blown element, and the non-rejection design fits standard 1-1/4 inch by 1/4 inch fuse holders without a keyed slot.
1 kA interrupting rating at 32 V AC
The interrupting capacity of 1 kA at 32 V AC is the specification that determines whether this fuse can safely clear a fault in a given circuit. Buyers whose equipment requires a higher interrupting rating or a different voltage rating must select a different fuse series.
Highlights
- 20 A rating protects circuits up to 20 amps
- 32 V AC voltage rating suits low-voltage systems
- Time-delay design tolerates brief inrush currents
- Glass cylindrical body allows visual inspection
- Pack of five provides ready replacements
Specifications
| Brand | BUSSMANN |
|---|
Questions about this item
How much heat does a 20 A glass fuse generate when it runs continuously?
A 20 A fuse at 32 V AC dissipates only a few watts under normal load, so it adds negligible heat to a fuse block.
What fuse holder or block must I already have to use these MDL-20-R fuses?
You need a holder that accepts 1-1/4 in by 1/4 in cylindrical glass fuses with non-rejection contacts.
Can I replace older 313 or 315 series fuses with these MDL-20-R fuses?
Yes, the MDL-20-R is listed as equivalent to Littelfuse 313 and 315 series in the same 20 A, 32 V AC time-delay rating.
Also in this aisle
People compared these
Same shelf, same checkout — eight coins and a 30-minute rate lock.



