20 A Fast-Acting Supplemental Protection
Rated 20 A for fast-acting supplemental protection in compatible AC and DC control circuits.
Technical specifications, features, applications and purchasing information.
| Brand | Bussmann |
| Model Number | KLM-20 |
| Product Category | Fast-Acting Midget Fuse |
| Series | KLM / Limitron |
| Fuse Type | Fast-Acting Supplemental Fuse |
| Amperage Rating | 20 A |
| Voltage Rating | 600 Vac / 600 Vdc |
| Interrupt Rating (AC) | 100 kAIC at 600 Vac |
| Interrupt Rating (DC) | 50 kAIC at 600 Vdc |
| Fuse Size | 13/32 in x 1-1/2 in (10.3 mm x 38.1 mm) |
| Package / Case | 5AG Midget, Cylindrical |
| Body Material | Melamine Tube |
| Endcap Material | Nickel-Plated Bronze |
| Connection | Ferrule End x Ferrule End |
| Indicator | Non-Indicating |
| Electrical Characteristics | 110% Rating: 4 Hours Minimum; 135% AC Rating: Opens Within 1 Hour |
| Compliances | UL Listed (Std. 248-14, Guide JDYX, File E19180); CSA Certified (C22.2 No. 248.14, Class 1422-01, File 53787); CE; RoHS Compliant |
| Typical Applications | DC Control Circuits Requiring Fast-Acting Fuses; PV Systems up to 600 Vdc |
Rated 20 A for fast-acting supplemental protection in compatible AC and DC control circuits.
Dual voltage rating supports 600 Vac control circuits and 600 Vdc applications including PV systems within the documented range.
Published high interrupt ratings for short-circuit current protection in systems within the fuse capability.
13/32 in x 1-1/2 in (10.3 mm x 38.1 mm) midget dimensions for use in compatible fuse holders, blocks, and DIN-rail assemblies.
Melamine tube body with nickel-plated bronze endcaps, per KLM series technical data.
Documented as a full-range DC supplemental fuse for DC control circuits and PV systems up to 600 Vdc.
We support online purchase of the Bussmann KLM-20 Fast-Acting Midget Fuse. If you need to make bulk purchases and inquire about other products, please contact our team to inform us of your purchase requirements. We will provide you with information such as quantity quotations, delivery dates, and transportation methods.
What is the Bussmann KLM-20? The KLM-20 is a 20 A fast-acting supplemental midget fuse in the Bussmann KLM series.
What are the voltage ratings for KLM-20? 600 Vac and 600 Vdc.
What is the interrupt rating of KLM-20? 100 kAIC at 600 Vac and 50 kAIC at 600 Vdc.
What size is the KLM-20 fuse? 13/32 in x 1-1/2 in (10.3 mm x 38.1 mm), 5AG midget.
Is KLM-20 indicating or non-indicating? Non-indicating.
What are the body and endcap materials? Melamine tube body and nickel-plated bronze endcaps.
What are the electrical characteristics at 110% and 135% of rating? 110% of rating: carries for 4 hours minimum; 135% AC rating: opens within 1 hour.
What agency approvals does KLM-20 carry? UL Listed (Std. 248-14, Guide JDYX, File E19180), CSA Certified (C22.2 No. 248.14, Class 1422-01, File 53787), CE, and RoHS compliant.
Can KLM-20 be used in PV systems? The KLM series is documented for PV systems up to 600 Vdc, in addition to DC control circuits, subject to the application requirements and installation standards.
What should be checked before ordering KLM-20? Confirm the 20 A current requirement, 600 Vac/600 Vdc system voltage, available fault current against the 100 kA/50 kA interrupt rating, fuse holder compatibility with the midget size, and required agency approvals for the installation.
Send us your part number and technical requirements.