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Littelfuse

Littelfuse KLDR-30 KLDR30 KLDR 30A 600Vac TIME-DELAY Fuse

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PRODUCT DOCUMENTATION

Product Information

Technical specifications, features, applications and purchasing information.

Technical Specifications

Brand	Littelfuse
Model Number	KLDR-30
Product Category	Class CC Fuse
Series	KLDR
Fuse Type	Time-Delay Fuse
Current Rating	30 A
AC Voltage Rating	600 VAC
DC Voltage Rating	300 VDC
Fuse Class	Class CC
AC Interrupting Rating	200 kA
DC Interrupting Rating	20 kA
Dimensions	10.3 × 38.1 mm
Product Marking	KLDR 30A
Opening Time at 135% Rating	60 Minutes Maximum
Opening Time at 200% Rating	12 Seconds Minimum
Agency Approvals	UL, CSA
Environmental Compliance	RoHS Compliant

Key Features

30 A Current Rating

The KLDR-30 has a documented current rating of 30 A within the Littelfuse KLDR Class CC fuse series.

600 VAC and 300 VDC

The KLDR-30 is rated for circuits up to 600 VAC and 300 VDC.

Time-Delay Characteristics

The KLDR series uses time-delay characteristics for inductive loads that can produce high magnetizing currents during energization.

Class CC Format

The KLDR-30 uses the compact Class CC fuse format with dimensions of approximately 10.3 × 38.1 mm.

200 kA AC Interrupting Rating

The documented AC interrupting rating is 200 kA, with a 20 kA interrupting rating on DC circuits.

Inductive Circuit Protection

The KLDR series is designed for protection of control transformers, solenoids and similar inductive components.

Applications

Control transformer protection
Solenoid circuit protection
Inductive control circuits
Industrial control panels
Control power circuits
Class CC fuse circuits

Purchase Information

We support online purchase of the Littelfuse KLDR-30 Class CC 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.

Frequently Asked Questions

What is Littelfuse KLDR-30?
Littelfuse KLDR-30 is a 30 A time-delay Class CC fuse from the KLDR series.

What is the current rating of KLDR-30?
The documented current rating is 30 A.

What is the AC voltage rating of KLDR-30?
The documented AC voltage rating is 600 VAC.

What is the DC voltage rating of KLDR-30?
The documented DC voltage rating is 300 VDC.

Is KLDR-30 a time-delay fuse?
Yes. The KLDR series is specified as a time-delay Class CC fuse series.

What is the AC interrupting rating of KLDR-30?
The documented AC interrupting rating is 200 kA.

What is the DC interrupting rating of KLDR-30?
The documented DC interrupting rating is 20 kA.

What are the dimensions of KLDR-30?
The documented dimensions for the KLDR 0-30 A range are approximately 10.3 mm in diameter and 38.1 mm in length.

What is the product marking for KLDR-30?
The documented product marking is KLDR 30A.

What applications are specified for the KLDR series?
The KLDR series is designed for control transformers, solenoids and similar inductive components with high magnetizing currents during energization.

What are the UL opening-time requirements for this range?
For the 0.1-30 A KLDR range, the documented requirement at 135% of ampere rating is 60 minutes maximum and at 200% is 12 seconds minimum.

What should be checked before ordering KLDR-30?
Check the KLDR-30 model marking, 30 A current rating, required 600 VAC or 300 VDC rating, Class CC format, 10.3 × 38.1 mm dimensions and circuit protection requirements before purchasing.

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