Littelfuse

LCSC10T12

Name: Littelfuse LCSC10T12 toroidal current sensor for DCSA Series transducers, 0-50A AC measurement.
Brand: Littelfuse
SKU: LCSC10T12
Availability: InStock

Alternate Item Number: LCSC10T12

UPC: 079458995961

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Brochure Specification Sheet

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Overview

The Littelfuse LCSC10T12 is a compact toroidal current sensor designed for precise AC current measurement in industrial applications. It integrates seamlessly with Littelfuse DCSA Series current transducers to enable remote monitoring of AC currents up to 50A. The LCSC10T12 features a durable toroidal design with a 9.14mm inner diameter, suitable for demanding environments with operating temperatures from -30°C to 60°C. Factory-calibrated for four selectable ranges (0-5A, 0-10A, 0-20A, or 0-50A), it supports field calibration via zero and span adjustments. The sensor outputs a linear signal proportional to RMS AC current, compatible with DCSA Series transducers offering 4-20mA, 1-5VDC, or 2-10VDC output options. The DCSA Series control unit mounts on DIN 1 or DIN 3 rails, providing flexible installation. With a maximum allowable current of 50A steady state and 300A inrush for 10 seconds, the LCSC10T12 is ideal for motor control, power distribution monitoring, and renewable energy systems. Loop-powered by 10-30VDC, it delivers accurate measurements with ±0.5% factory calibration accuracy and ±0.25% repeat accuracy under fixed conditions.

Toroidal design with 9.14mm inner diameter for AC current measurement up to 50A
Factory-calibrated for 0-5A, 0-10A, 0-20A, or 0-50A ranges
Compatible with DCSA Series transducers for 4-20mA, 1-5VDC, or 2-10VDC outputs
Field calibration via zero and span adjustments for precision tuning
Operating temperature: -30°C to 60°C; suitable for harsh environments

Specifications

Brand Name	Littelfuse
Current Rating	50 A
Current Rating	0-5A, 0-10A, 0-20A, 0-50A
Mounting Type	DIN Rail
Operating Temperature	-40 to 60 F
Operating Temperature, Maximum	60 F
Operating Temperature, Minimum	-40 F
Series	DCSA
Series	DCSA Series
Special Features	10Y WARR
Standard	CE/UR/CSA
Sub Brand	SSAC

6896057-1

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DCSA50

The DCSA Series is a loop-powered, linear output current transducer that provides an output that is directly proportional to the RMS AC current passing through the LCSC10T12 sensor. The DCSA provides either an analog current or voltage: 4 - 20 mA, 1 to 5VDC, or 2 to 10VDC. Each unit is factory calibrated for monitoring (with the LCSC10T12 connected) in one of four ranges; 0 - 5, 0 - 10, 0 - 20, or 0 - 50A. Zero and span adjustments allow field calibration if needed. The DCSA mounts on both DIN 1 and DIN 3 rails.

TCSA20

The TCSA Series is a loop-powered, linear output current transducer that provides an output that is directly proportional to the RMS AC current passing through the onboard toroid. The TCSA provides a 4 - 20mA output over a power supply range of 10 - 30VDC. Each unit is factory calibrated for monitoring in one of four ranges; 0-5, 0-10, 0-20, or 0-50A. The 0 - 5A range allows the use of external current transformers so loads up to 1200AC amps can be monitored. See datasheet for operation details.

ARP42S

The ARP Series is used in systems where equal run time for two motors is desirable. The selector switch allows selection of alternation of either load for continuous operation. LED’s indicate the status of the output relay. This versatile series may be front panel mounted (BZ1 accessory required) or 35 mm DIN rail mounted with an accessory socket. Operation: Alternating: When the rotary switch is in the “alternate” position, alternating operation of Load A and Load B occurs upon the opening of the control switch S1. To terminate alternating operation and cause only the selected load to operate, rotate the switch to position “A” to lock Load A or position “B” to lock Load B. The LEDs indicate the status of the internal relay and which load is selected to operate. Note: Input voltage must be applied at all times for proper alternation. The use of a solid-state control switch for S1 may not initiate alternation correctly. S1 voltage must be from the same supply as the unit’s input voltage (see connection diagrams on datasheet). Loss of input voltage resets the unit; Load A becomes the lead load for the next operation. Duplexing (Cross Wired): Duplexing models operate the same as alternating relays and when both the Control (S1) and Lag Load (S2) Switches are closed, Load A and Load B energize simultaneously. The DPDT 8-pin, cross-wired option, allows extra system load capacity through simultaneous operation of both motors when needed. Relay contacts are not isolated.

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Frequently Asked Questions

What is the inner diameter of the LCSC10T12 toroidal sensor?

The inner diameter of the LCSC10T12 toroidal sensor is 9.14mm (0.36 inches).

What is the maximum current the LCSC10T12 can measure?

The LCSC10T12 can measure up to 50A of AC current in steady state, with an inrush rating of 300A for 10 seconds.

What is the factory calibration accuracy of the LCSC10T12?

The LCSC10T12 is factory-calibrated to ±0.5% of full scale accuracy.

What output options are available with the LCSC10T12?

The LCSC10T12 works with DCSA Series transducers to provide 4-20mA, 1-5VDC, or 2-10VDC outputs proportional to the measured current.

What are the mounting options for the DCSA Series control unit?

The DCSA Series control unit mounts on both DIN 1 and DIN 3 rails for flexible installation.

Can the LCSC10T12 be calibrated in the field?

Yes, the LCSC10T12 supports field calibration with built-in zero and span adjustments via multi-turn potentiometers.

What is the operating voltage range for the DCSA Series?

The DCSA Series transducers are loop-powered by a 10-30VDC supply.

What is the response time of the LCSC10T12?

The response time of the LCSC10T12 is 300ms.

How to Install the LCSC10T12 with DCSA Series Transducer

Step-by-step guide to install and wire the LCSC10T12 toroidal current sensor with a DCSA Series transducer.

Estimated time: 30m

Tools needed:

Screwdriver, Wire strippers, Multimeter

Supplies needed:

Mounting screws, 10-30VDC power supply, Appropriate wiring

Mount the DCSA Series control unit
Secure the DCSA Series control unit to a DIN 1 or DIN 3 rail using the provided mounting hardware.
Install the LCSC10T12 sensor
Pass the current-carrying conductor through the center of the LCSC10T12 toroidal sensor. Ensure the sensor is properly aligned for accurate measurement.
Connect the sensor to the control unit
Wire the LCSC10T12 sensor to the DCSA Series control unit terminals as per the wiring diagram. Connect the power supply to terminals C & D for 4-20mA output, C & A for 1-5VDC, or C & B for 2-10VDC.
Power up and calibrate
Apply 10-30VDC power to the DCSA Series control unit. Use the zero and span adjustments to calibrate the output signal as needed.
Verify operation
Use a multimeter to verify the output signal matches the expected current range. Ensure the system is functioning correctly before deployment.

Frequently Asked Questions about Littelfuse

What certifications and standards do Littelfuse products comply with?

Littelfuse products are certified to multiple international standards, including UL (Underwriters Laboratories), CSA (Canadian Standards Association), CCC (China Compulsory Certification), and EAC (Eurasian Conformity). Customers can verify specific product certifications by consulting individual product datasheets on Littelfuse.com, which provide comprehensive details about standards compliance for each component.

What industries and applications are Littelfuse products used for?

Littelfuse products are critical for electrical protection and safety across multiple industrial sectors, including manufacturing, automation, power distribution, and electrical control systems. Their comprehensive product portfolio serves industries that require robust electrical protection, including motor and pump applications, solar installations, programmable logic controllers (PLCs), electrical switch panels, and critical infrastructure environments. Key product lines protect against overcurrent, voltage transients, ground faults, and temperature-related electrical risks, ensuring equipment safety and operational reliability.

What technical support does Littelfuse offer?

Littelfuse offers comprehensive technical support through multiple channels. Their Technical Hotline (800-TEC-FUSE) provides direct access to engineers who can help identify issues and recommend solutions. Additionally, Littelfuse offers extensive online Technical Resources at Littelfuse.com, including datasheets, product manuals, whitepapers, application guides, and online design tools. Their experienced product and application engineers also provide step-by-step support from design to installation.

What are the main product lines offered by Littelfuse?

Littelfuse offers comprehensive industrial protection and control product lines, including fuses, fuse holders, protection relays, temperature sensors, and electrical safety components. Their key product categories span surge protective devices, custom OEM products, electrical switch panels, medium voltage fuses, ground-fault protection relays, motor and pump protection devices, and temperature sensors. These products are designed to minimize electrical safety hazards, limit equipment damage, improve productivity, and safeguard personnel from electrical faults.

What are the key features of Littelfuse products?

Littelfuse products feature exceptional circuit protection technologies with key characteristics including UL/IEC safety standard compliance, low internal resistance, and advanced protective capabilities across multiple product lines. Their components provide critical protection for industrial systems, offering features like overcurrent protection, voltage transient suppression, and resettable protection devices with ultra-low resistance and compact designs. Key product lines include fuses, metal oxide varistors (MOVs), TVS diodes, PolySwitch devices, and specialized electronic protection components that enhance system reliability and safety.

What environmental ratings do Littelfuse products have?

Littelfuse products feature comprehensive environmental ratings, including NEMA Type 1, 2, 3, 3R, 4/4X, 12, and 13 certifications, as well as IP65 protection. These ratings ensure superior protection in diverse industrial environments, with an operating temperature range of -40°F to +131°F (-40°C to +55°C). Many products also include UV-stabilized materials and neoprene gaskets for enhanced durability in outdoor and challenging conditions.

What accessories are available for Littelfuse products?

Littelfuse offers several key accessories across their product lines, including fuse holders, voltage monitoring modules, and terminal connectors. Specific accessories include the LPSM003ZXID (indicating) and LPSM003Z (non-indicating) POWR-SAFE Dead Front fuse holders for Class CC and Midget-Style fuses, the VRM6048 voltage monitor accessory module, and female quick connect terminals (P1015 series) in various wire gauge sizes. These accessories are designed to enhance protection, monitoring, and connectivity for Littelfuse electrical components.

What is Littelfuse's warranty policy?

Littelfuse provides comprehensive warranty details on their official website at www.littelfuse.com/warranty. Customers should visit this page to review the specific warranty terms and conditions for their specific product lines. For direct warranty support or questions, customers can contact Littelfuse Technical Support at 1-800-TEC-FUSE or email [email protected].

What communication protocols do Littelfuse products support?

Littelfuse supports a comprehensive range of industrial communication protocols, including PROFIBUS, PROFINET, EtherNet/IP, DeviceNet, Modbus RTU, and CANopen. Our products provide flexible connectivity solutions across multiple industrial automation platforms, enabling seamless integration with various control systems and network architectures.

How are Littelfuse products typically installed?

Littelfuse products are typically installed using specialized mounting hardware like fuse holders, blocks, and panels designed for specific industrial applications. The POWR-SAFE Dead Front holders, for example, provide optimum protection for Class CC and Midget-Style fuses, supporting installations up to 600 VAC/DC. Installation often involves using precision terminals with strain relief, such as 0.25 in. female quick connect terminals, to ensure secure and safe electrical connections in industrial control systems.