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Series: LLSRK

UL Class RK1 Dual Element Time-Delay Fuse

Product Status| Activei

Littelfuse LLSRK series POWR-PRO™ fuses provide superior overload and short circuit protection for service entrance, main, feeder and general-purpose branch circuits up to 600 amperes.

LLSRK series fuses can be installed in existing Class H fuse blocks to upgrade systems containing lower interrupting rating Class H one-time or renewable fuses.

POWR-PRO Performance
Indication available
Dual-element design
Extremely Current-Limiting
IEC Type 2 “No Damage” protection to IEC and NEMA type motor starters
Indicating and DIN mount fuse holders available

Superior overload and short-circuit protection
Ability to detect issues quickly
Eliminates needless downtime
Reduces or eliminates damage to circuits and equipment under short-circuit conditions
Prevents fault current damage to healthy system equipment
Provides design flexibility

LLSRK Parts

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Part Number	Actions	Current Rating (Continuous) in Amps	Interrupting Rating	Opening	Maximum AC Voltage (V)	Voltage Rating (V)	Size	Agency Approvals
Series: LLSRK - UL Class RK1 Dual Element Time-Delay Fuse Series: LLSRK UL Class RK1 Dual Element Time-Delay Fuse	Datasheet Request Sample View More	0.1	20 kA @ 300 Vdc	Slo-Blo/Time Lag (T)/Time Delay	600	300	Industrial Cartridge	CSA / UL / CUL
Series: LLSRK - UL Class RK1 Dual Element Time-Delay Fuse Series: LLSRK UL Class RK1 Dual Element Time-Delay Fuse	Datasheet Request Sample View More	0.15	20 kA @ 300 Vdc	Slo-Blo/Time Lag (T)/Time Delay	600	300	Industrial Cartridge	CSA / UL / CUL
Series: LLSRK - UL Class RK1 Dual Element Time-Delay Fuse Series: LLSRK UL Class RK1 Dual Element Time-Delay Fuse	Datasheet Request Sample View More	0.2	20 kA @ 300 Vdc	Slo-Blo/Time Lag (T)/Time Delay	600	300	Industrial Cartridge	CSA / UL / CUL
Series: LLSRK - UL Class RK1 Dual Element Time-Delay Fuse Series: LLSRK UL Class RK1 Dual Element Time-Delay Fuse	Datasheet Request Sample View More	0.25	20 kA @ 300 Vdc	Slo-Blo/Time Lag (T)/Time Delay	600	300	Industrial Cartridge	UL / CSA / CUL
Series: LLSRK - UL Class RK1 Dual Element Time-Delay Fuse Series: LLSRK UL Class RK1 Dual Element Time-Delay Fuse	Datasheet Request Sample View More	0.3	20 kA @ 300 Vdc	Slo-Blo/Time Lag (T)/Time Delay	600	300	Industrial Cartridge	CSA / UL / CUL
Series: LLSRK - UL Class RK1 Dual Element Time-Delay Fuse Series: LLSRK UL Class RK1 Dual Element Time-Delay Fuse	Datasheet Request Sample View More	0.4	20 kA @ 300 Vdc	Slo-Blo/Time Lag (T)/Time Delay	600	300	Industrial Cartridge	CSA / UL / CUL
Series: LLSRK - UL Class RK1 Dual Element Time-Delay Fuse Series: LLSRK UL Class RK1 Dual Element Time-Delay Fuse	Datasheet Request Sample View More	0.5	20 kA @ 300 Vdc	Slo-Blo/Time Lag (T)/Time Delay	600	300	Industrial Cartridge	CSA / UL / CUL
Series: LLSRK - UL Class RK1 Dual Element Time-Delay Fuse Series: LLSRK UL Class RK1 Dual Element Time-Delay Fuse	Datasheet Request Sample View More	0.6	20 kA @ 300 Vdc	Slo-Blo/Time Lag (T)/Time Delay	600	300	Industrial Cartridge	CSA / UL / CUL
Series: LLSRK - UL Class RK1 Dual Element Time-Delay Fuse Series: LLSRK UL Class RK1 Dual Element Time-Delay Fuse	Datasheet Request Sample View More	0.8	20 kA @ 300 Vdc	Slo-Blo/Time Lag (T)/Time Delay	600	300	Industrial Cartridge	UL / CSA / CUL
Series: LLSRK - UL Class RK1 Dual Element Time-Delay Fuse Series: LLSRK UL Class RK1 Dual Element Time-Delay Fuse	Datasheet Request Sample View More	1	20 kA @ 300 Vdc	Slo-Blo/Time Lag (T)/Time Delay	600	300	Industrial Cartridge	CSA / UL / CUL
Series: LLSRK - UL Class RK1 Dual Element Time-Delay Fuse Series: LLSRK UL Class RK1 Dual Element Time-Delay Fuse	Datasheet Request Sample View More	2	20 kA @ 300 Vdc	Slo-Blo/Time Lag (T)/Time Delay	600	300	Industrial Cartridge	CSA / UL / CUL
Series: LLSRK - UL Class RK1 Dual Element Time-Delay Fuse Series: LLSRK UL Class RK1 Dual Element Time-Delay Fuse	Datasheet Request Sample View More	3	20 kA @ 300 Vdc	Slo-Blo/Time Lag (T)/Time Delay	600	300	Industrial Cartridge	CSA / UL / CUL