Name: FLSR Series - UL Class RK5 Dual-Element Time-Delay Fuses
Brand: Littelfuse Inc.

FLSR Series - UL Class RK5 Dual-Element Time-Delay Fuses

Series: FLSR

Questions? Contact Littelfuse Support

Disclaimer Notice

Littelfuse products are not designed for, and shall not be used for, any purpose (including, without limitation, automotive, military, aerospace, medical, life-saving, life-sustaining or nuclear facility applications, devices intended for surgical implant into the body, or any other application in which the failure or lack of desired operation of the product may result in personal injury, death, or property damage) other than those expressly set forth in applicable Littelfuse product documentation. Warranties granted by Littelfuse shall be deemed void for products used for any purpose not expressly set forth in applicable Littelfuse documentation. Littelfuse shall not be liable for any claims or damages arising out of products used in applications not expressly intended by Littelfuse as set forth in applicable Littelfuse documentation. The sale and use of Littelfuse products is subject to Littelfuse Terms and Conditions of Sale, unless otherwise agreed by Littelfuse. "Littelfuse" includes Littelfuse, Inc., and all of its affiliate entities.

Littelfuse FLSR series fuses have been the superior UL Class RK5 dual-element time-delay fuses, and are the most widely used class of fuses. FLSR series fuses provide excellent protection for all types of circuits especially those containing motors. However, users and specifiers should consider the significant benefits offered by Indicator fuses.

Applications:

Service entrance switches
Transformers
Switchboard main and feeder switches
Motor control center mains and motor branch circuits
Individual fused combination motor controllers
Distribution panelboards
Industrial control panels
Protection of fully-rated panelboards and loadcenters
All general purpose circuits

Safety:

200,000 A.I.R.- Reliable interruption of all overcurrents up to 200,000 amperes.
Faster acting short circuit protection than any non-current limiting mechanical protective device.

Reliability:

Accurate and reliable - Automated, precision manufactured and assembled parts ensure accurate, consistent response to overloads and short circuits.

Access specifications, certifications, check availability and order parts below

Catalog #	Amps (A)	Interrupting Rating	Opening	Size	Stock	Samples

FLSR.100	0.1	20 kA @ 300 Vdc	Slo-Blo/Time Lag (T)/Time Delay	Industrial Cartridge	Check	Order
FLSR.150	0.15	20 kA @ 300 Vdc	Slo-Blo/Time Lag (T)/Time Delay	Industrial Cartridge	Check	Order
FLSR.200	0.2	20 kA @ 300 Vdc	Slo-Blo/Time Lag (T)/Time Delay	Industrial Cartridge	Check	Order
FLSR.250	0.25	20 kA @ 300 Vdc	Slo-Blo/Time Lag (T)/Time Delay	Industrial Cartridge	Check	Order
FLSR.300	0.3	20 kA @ 300 Vdc	Slo-Blo/Time Lag (T)/Time Delay	Industrial Cartridge	Check	Order
FLSR.400	0.4	20 kA @ 300 Vdc	Slo-Blo/Time Lag (T)/Time Delay	Industrial Cartridge	Check	Order
FLSR.500	0.5	20 kA @ 300 Vdc	Slo-Blo/Time Lag (T)/Time Delay	Industrial Cartridge	Check	Order
FLSR.600	0.6	20 kA @ 300 Vdc	Slo-Blo/Time Lag (T)/Time Delay	Industrial Cartridge	Check	Order
FLSR.800	0.8	20 kA @ 300 Vdc	Slo-Blo/Time Lag (T)/Time Delay	Industrial Cartridge	Check	Order
FLSR001	1	20 kA @ 300 Vdc	Slo-Blo/Time Lag (T)/Time Delay	Industrial Cartridge	Check	Order
FLSR01.4	1.4	20 kA @ 300 Vdc	Slo-Blo/Time Lag (T)/Time Delay	Industrial Cartridge	Check	Order
FLSR01.5	1.5	20 kA @ 300 Vdc	Slo-Blo/Time Lag (T)/Time Delay	Industrial Cartridge	Check	Order
FLSR01.6	1.6	20 kA @ 300 Vdc	Slo-Blo/Time Lag (T)/Time Delay	Industrial Cartridge	Check	Order
FLSR01.8	1.8	20 kA @ 300 Vdc	Slo-Blo/Time Lag (T)/Time Delay	Industrial Cartridge	Check	Order
FLSR1.12	1.125	20 kA @ 300 Vdc	Slo-Blo/Time Lag (T)/Time Delay	Industrial Cartridge	Check	Order
FLSR1.25	1.25	20 kA @ 300 Vdc	Slo-Blo/Time Lag (T)/Time Delay	Industrial Cartridge	Check	Order
FLSR002	2	20 kA @ 300 Vdc	Slo-Blo/Time Lag (T)/Time Delay	Industrial Cartridge	Check	Order
FLSR02.5	2.5	20 kA @ 300 Vdc	Slo-Blo/Time Lag (T)/Time Delay	Industrial Cartridge	Check	Order
FLSR02.8	2.8	20 kA @ 300 Vdc	Slo-Blo/Time Lag (T)/Time Delay	Industrial Cartridge	Check	Order
FLSR2.25	2.25	20 kA @ 300 Vdc	Slo-Blo/Time Lag (T)/Time Delay	Industrial Cartridge	Check	Order
FLSR003	3	20 kA @ 300 Vdc	Slo-Blo/Time Lag (T)/Time Delay	Industrial Cartridge	Check	Order
FLSR03.2	3.2	20 kA @ 300 Vdc	Slo-Blo/Time Lag (T)/Time Delay	Industrial Cartridge	Check	Order
FLSR03.5	3.5	20 kA @ 300 Vdc	Slo-Blo/Time Lag (T)/Time Delay	Industrial Cartridge	Check	Order
FLSR004	4	20 kA @ 300 Vdc	Slo-Blo/Time Lag (T)/Time Delay	Industrial Cartridge	Check	Order
FLSR04.5	4.5	20 kA @ 300 Vdc	Slo-Blo/Time Lag (T)/Time Delay	Industrial Cartridge	Check	Order
FLSR005	5	20 kA @ 300 Vdc	Slo-Blo/Time Lag (T)/Time Delay	Industrial Cartridge	Check	Order
FLSR05.6	5.6	20 kA @ 300 Vdc	Slo-Blo/Time Lag (T)/Time Delay	Industrial Cartridge	Check	Order
FLSR006	6	20 kA @ 300 Vdc	Slo-Blo/Time Lag (T)/Time Delay	Industrial Cartridge	Check	Order
FLSR6.25	6.25	20 kA @ 300 Vdc	Slo-Blo/Time Lag (T)/Time Delay	Industrial Cartridge	Check	Order
FLSR007	7	20 kA @ 300 Vdc	Slo-Blo/Time Lag (T)/Time Delay	Industrial Cartridge	Check	Order
FLSR07.5	7.5	20 kA @ 300 Vdc	Slo-Blo/Time Lag (T)/Time Delay	Industrial Cartridge	Check	Order
FLSR008	8	20 kA @ 300 Vdc	Slo-Blo/Time Lag (T)/Time Delay	Industrial Cartridge	Check	Order
FLSR009	9	20 kA @ 300 Vdc	Slo-Blo/Time Lag (T)/Time Delay	Industrial Cartridge	Check	Order
FLSR010	10	20 kA @ 300 Vdc	Slo-Blo/Time Lag (T)/Time Delay	Industrial Cartridge	Check	Order
FLSR012	12	20 kA @ 300 Vdc	Slo-Blo/Time Lag (T)/Time Delay	Industrial Cartridge	Check	Order
FLSR015	15	20 kA @ 300 Vdc	Slo-Blo/Time Lag (T)/Time Delay	Industrial Cartridge	Check	Order
FLSR17.5	17.5	20 kA @ 300 Vdc	Slo-Blo/Time Lag (T)/Time Delay	Industrial Cartridge	Check	Order
FLSR020	20	20 kA @ 300 Vdc	Slo-Blo/Time Lag (T)/Time Delay	Industrial Cartridge	Check	Order
FLSR025	25	20 kA @ 300 Vdc	Slo-Blo/Time Lag (T)/Time Delay	Industrial Cartridge	Check	Order
FLSR030	30	20 kA @ 300 Vdc	Slo-Blo/Time Lag (T)/Time Delay	Industrial Cartridge	Check	Order
FLSR035	35	20 kA @ 300 Vdc	Slo-Blo/Time Lag (T)/Time Delay	Industrial Cartridge	Check	Order
FLSR040	40	20 kA @ 300 Vdc	Slo-Blo/Time Lag (T)/Time Delay	Industrial Cartridge	Check	Order
FLSR045	45	20 kA @ 300 Vdc	Slo-Blo/Time Lag (T)/Time Delay	Industrial Cartridge	Check	Order
FLSR050	50	20 kA @ 300 Vdc	Slo-Blo/Time Lag (T)/Time Delay	Industrial Cartridge	Check	Order
FLSR060	60	20 kA @ 300 Vdc	Slo-Blo/Time Lag (T)/Time Delay	Industrial Cartridge	Check	Order
FLSR070	70	20 kA @ 300 Vdc	Slo-Blo/Time Lag (T)/Time Delay	Knife-Blade	Check	Order
FLSR075	75	20 kA @ 300 Vdc	Slo-Blo/Time Lag (T)/Time Delay	Knife-Blade	Check	Order
FLSR080	80	20 kA @ 300 Vdc	Slo-Blo/Time Lag (T)/Time Delay	Knife-Blade	Check	Order
FLSR090	90	20 kA @ 300 Vdc	Slo-Blo/Time Lag (T)/Time Delay	Knife-Blade	Check	Order
FLSR100	100	20 kA @ 300 Vdc	Slo-Blo/Time Lag (T)/Time Delay	Knife-Blade	Check	Order
FLSR110	110	20 kA @ 300 Vdc	Slo-Blo/Time Lag (T)/Time Delay	Knife-Blade	Check	Order
FLSR125	125	20 kA @ 300 Vdc	Slo-Blo/Time Lag (T)/Time Delay	Knife-Blade	Check	Order
FLSR150	150	20 kA @ 300 Vdc	Slo-Blo/Time Lag (T)/Time Delay	Knife-Blade	Check	Order
FLSR175	175	20 kA @ 300 Vdc	Slo-Blo/Time Lag (T)/Time Delay	Knife-Blade	Check	Order
FLSR200	200	20 kA @ 300 Vdc	Slo-Blo/Time Lag (T)/Time Delay	Knife-Blade	Check	Order
FLSR225	225	20 kA @ 300 Vdc	Slo-Blo/Time Lag (T)/Time Delay	Knife-Blade	Check	Order
FLSR250	250	20 kA @ 300 Vdc	Slo-Blo/Time Lag (T)/Time Delay	Knife-Blade	Check	Order
FLSR300	300	20 kA @ 300 Vdc	Slo-Blo/Time Lag (T)/Time Delay	Knife-Blade	Check	Order
FLSR350	350	20 kA @ 300 Vdc	Slo-Blo/Time Lag (T)/Time Delay	Knife-Blade	Check	Order
FLSR400	400	20 kA @ 300 Vdc	Slo-Blo/Time Lag (T)/Time Delay	Knife-Blade	Check	Order
FLSR450	450	20 kA @ 300 Vdc	Slo-Blo/Time Lag (T)/Time Delay	Knife-Blade	Check	Order
FLSR500	500	20 kA @ 300 Vdc	Slo-Blo/Time Lag (T)/Time Delay	Knife-Blade	Check	Order
FLSR600	600	20 kA @ 300 Vdc	Slo-Blo/Time Lag (T)/Time Delay	Knife-Blade	Check	Order

Showing 3 items

- FLSR_ID
  UL Class RK5 Dual-Element Time-Delay Fuses With Indication
- Amps (A): 0.1, 0.15, 0.2, 0.25, 0.3, 0.4, 0.5, 0.6, 0.8, 1, 1.125, 1.25, 1.4, 1.5, 1.6, 1.8, 2, 2.25, 2.5, 2.8 more
- Interrupting Rating: 20 kA @ 300 Vdc
- Opening: Slo-Blo/Time Lag (T)/Time Delay
- LFR
  Class R Indicating Fuse Blocks
- Fuse Type: Class R
- Indicating: No, Yes
- Information Not Available
- LF Series Covers
  UL Class Fuseblock Touch-Safe Covers
- Max Amps: 30, 60, 100, 200, 400, 600
- Information Not Available
- Information Not Available

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Semiconductors

FLSR Series - UL Class RK5 Dual-Element Time-Delay Fuses

Applications:

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Reliability:

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Showing 3 items

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