KLDR17.5T

KLDR17.5T Datasheet

Compared to other UL Listed fuses, Class CC fuses are the most current limiting, rating for rating. Because they are physically compact, they provide this superior protection in a fraction of the space required by other fuse classes. For example, when 600V three-pole, 30 ampere Class R fuse blocks are replaced by Littelfuse Class CC fuse blocks, panel mounting space is reduced approximately This is especially important when a panel contains many fuses to protect multiple circuit components. APPLICATIONS Three Types of Class CC Fuses, Specifically Designed to Protect Different Types of Components 1 Motor protection CCMR series dual-element, timedelay fuses specifically designed to protect motor circuits up to 40 HP**. 2 Small transformer protection control power transformers KLDR series, time-delay fuses designed to withstand the high magnetizing inrush of transformers. 3 General purpose protection of equipment requiring fast overload protection KLKR series, fast-acting fuses used for protection of equipment containing solidstate devices or other electronic components requiring fast response on overloads. SAFETY s 200,000 A.I.R. Reliable interruption of all overcurrents up

Part	Datasheet
KLDR17.5T	KLDR17.5T (pdf)

Related Parts	Information
KLDR.125T	KLDR.125T
KLDR.500T	KLDR.500T
KLDR.250T	KLDR.250T
KLDR.200T	KLDR.200T
KLDR.300T	KLDR.300T
KLDR.150T	KLDR.150T
KLDR.800T	KLDR.800T
KLDR.187T	KLDR.187T
KLDR.100T	KLDR.100T
KLDR6.25T	KLDR6.25T
KLDR2.25T	KLDR2.25T
KLDR.400T	KLDR.400T
KLDR1.12T	KLDR1.12T
KLDR.750T	KLDR.750T
KLDR.600T	KLDR.600T
KLDR1.25T	KLDR1.25T

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Class CC Fuses 600 VAC s 1/10 60 Amperes Compared to other UL Listed fuses, Class CC fuses are the most current limiting, rating for rating. Because they are physically compact, they provide this superior protection in a fraction of the space required by other fuse classes. For example, when 600V three-pole, 30 ampere Class R fuse blocks are replaced by Littelfuse Class CC fuse blocks, panel mounting space is reduced approximately This is especially important when a panel contains many fuses to protect multiple circuit components. APPLICATIONS Three Types of Class CC Fuses, Specifically Designed to Protect Different Types of Components 1 Motor protection CCMR series dual-element, timedelay fuses specifically designed to protect motor circuits up to 40 HP. 2 Small transformer protection control power transformers KLDR series, time-delay fuses designed to withstand the high magnetizing inrush of transformers. 3 General purpose protection of equipment requiring fast overload protection KLKR series, fast-acting fuses used for protection of equipment containing solidstate devices or other electronic components requiring fast response on overloads. SAFETY s 200,000 A.I.R. Reliable interruption of all overcurrents up to 200,000 amperes. s Extremely current limiting Reduces damage caused by heating and magnetic effects of short-circuit currents stops damaging short-circuit currents faster than any mechanical protective device. SPACE SAVING s Class CC fuses are the smallest 600V, 200,000 A.I.R. fuses approved for branch circuit protection. ECONOMICAL s Current limiting design often permits use of readily available, less costly equipment. Consult the Motor Protection Tables in the Fuseology section for specific motor sizing information SPECIFICATIONS Voltage Ratings AC 600 Volts DC 250 500 Volts CCMR † 300 Volts KLDR 300 Volts KLKR Interrupting Ratings AC 200,000 amperes rms symmetrical DC 20,000 amperes Ampere Range CCMR 2/10 60 amperes KLDR 1/10 30 amperes KLKR 1/10 30 amperes Approvals AC Standard 248-4, Class CC UL Listed 1/10-30 Amps File No E81895 Standard 248, Class CD UL Listed 35-60 Amps File No E71611 CSA Certified 1/10-60 Amps File No LR29862 DC Littelfuse Self-certified RECOMMENDED FUSE BLOCKS L60030C series L60060C series for CCMR Refer to Fuse Block section of this catalog for additional information. †Refer to the section for additional information. 0-30A 35-60A REF. Class CC Fuses 600 VAC s 1/10 60 Amperes CCMR Series For space-saving protection of motor circuits up to 40 HP, we recommend Littelfuse CCMR series fuses. These fuses are the only true dual-element time-delay CC fuses specifically engineered for motor branch circuit protection. They provide Type II protection no damage to both NEMArated and the more sensitive IEC International Electromechanical Commission type motor circuit components. CCMR series fuses are now available in larger sizes from 35 to 60 amperes! No other 600V fuse is available with this current carrying capacity in a package this small. Consult the Motor Protection Tables in the Fuseology section for specific motor sizing information For more information on CCMR series Class CC fuses, see the CCMR series pages in the section of this catalog. 1/10 30A UL Listed Time-Delay Class CC 35 60A UL Listed Class CD AMPERE RATINGS 10 35 12 40 15 45 20 60 Example part number series & amperage CCMR 30 KLDR Series KLDR fuses are time-delay fuses specif- AMPERE RATINGS Control Centers . When the time delay of KLDR fuses is adequate to carry motor starting current, they provide ex- Example part number series & amperage : KLDR cellent protection of motor branch cir- cuits containing IEC or NEMA rated motor controllers or contactors.

PDF Datasheet Preview

Class CC Fuses
600 VAC s 1/10 60 Amperes

Compared to other UL Listed fuses, Class CC fuses are the most current limiting, rating for rating. Because they are physically compact, they provide this superior protection in a fraction of the space required by other fuse classes. For example, when 600V three-pole, 30 ampere Class R fuse blocks are replaced by Littelfuse Class CC fuse blocks, panel mounting space is reduced approximately This is especially important when a panel contains many fuses to protect multiple circuit components. APPLICATIONS Three Types of Class CC Fuses, Specifically Designed to Protect Different Types of Components 1 Motor protection CCMR series dual-element, timedelay fuses specifically designed to protect motor circuits up to 40 HP**. 2 Small transformer protection control power transformers KLDR series, time-delay fuses designed to withstand the high magnetizing inrush of transformers. 3 General purpose protection of equipment requiring fast overload protection KLKR series, fast-acting fuses used for protection of equipment containing solidstate devices or other electronic components requiring fast response on overloads. SAFETY s 200,000 A.I.R. Reliable interruption of all overcurrents up
to 200,000 amperes. s Extremely current limiting Reduces damage caused by
heating and magnetic effects of short-circuit currents stops damaging short-circuit currents faster than any mechanical protective device. SPACE SAVING s Class CC fuses are the smallest 600V, 200,000 A.I.R. fuses approved for branch circuit protection. ECONOMICAL s Current limiting design often permits use of readily available, less costly equipment.
**Consult the Motor Protection Tables in the Fuseology section for specific motor sizing information

SPECIFICATIONS Voltage Ratings AC 600 Volts

DC 250 500 Volts CCMR † 300 Volts KLDR 300 Volts KLKR

Interrupting Ratings AC 200,000 amperes rms symmetrical

DC 20,000 amperes Ampere Range CCMR 2/10 60 amperes

KLDR 1/10 30 amperes KLKR 1/10 30 amperes Approvals AC Standard 248-4, Class CC UL Listed 1/10-30 Amps File No E81895 Standard 248, Class CD UL Listed 35-60 Amps File No E71611 CSA Certified 1/10-60 Amps File No LR29862 DC Littelfuse Self-certified

RECOMMENDED FUSE BLOCKS L60030C series L60060C series for CCMR

Refer to Fuse Block section of this catalog for additional information.
†Refer to the section for additional information.
0-30A
35-60A

REF.

Class CC Fuses
600 VAC s 1/10 60 Amperes

CCMR Series

For space-saving protection of motor circuits up to 40 HP**, we recommend Littelfuse CCMR series fuses. These fuses are the only true dual-element time-delay CC fuses specifically engineered for motor branch circuit protection. They provide Type II protection no damage to both NEMArated and the more sensitive IEC International Electromechanical Commission type motor circuit components.

CCMR series fuses are now available in larger sizes from 35 to 60 amperes! No other 600V fuse is available with this current carrying capacity in a package this small.
**Consult the Motor Protection Tables in the Fuseology section for specific motor sizing information

For more information on CCMR series Class CC fuses, see the CCMR series pages in the section of this catalog.
1/10 30A UL Listed Time-Delay Class CC
35 60A UL Listed Class CD

AMPERE RATINGS
10 35
12 40
15 45
20 60

Example part number series & amperage CCMR 30

KLDR Series

KLDR fuses are time-delay fuses specif- AMPERE RATINGS

Control Centers . When the time delay of KLDR fuses is adequate to carry motor starting current, they provide ex-

Example part number series &
amperage :

KLDR
cellent protection of motor branch cir-
cuits containing IEC or NEMA rated
motor controllers or contactors.

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Datasheet ID: KLDR17.5T 646477