Littelfuse RK-332 - Remote indication and reset for the SE-330, SE-330AU, and SE-330HV. NEMA 4 and NEMA 13 rating. Standard 22-mm mounting.
Littelfuse

RK-332

Alternate Item Number: RK-332

UPC: 079458987836


Documents & Media
BrochureTechnical DrawingSpecification Sheet

Contact for Pricing

Overview

The Littelfuse RK-332 Remote Indication and Reset Kit (SKU: RK-332) is specifically designed to provide essential remote control and monitoring capabilities for Littelfuse SE-330, SE-330AU, and SE-330HV protection relays. This panel-mounted accessory features a standard 22-mm mounting design, ensuring straightforward integration into existing control panels and enclosures. Its robust construction boasts NEMA 4 and NEMA 13 ratings, guaranteeing reliable operation in harsh industrial environments by offering protection against dust, dirt, strong water jets, oil, and coolant ingress. This makes the RK-332 an ideal choice for applications in manufacturing, water treatment, and power distribution sectors where equipment resilience is paramount. Key functionalities include remote status indication, allowing operators to monitor the state of the protected equipment from a distance, and the ability to perform reset operations without direct physical access. This enhances operational efficiency by minimizing downtime and reduces safety risks by enabling operators to maintain a safe distance from potentially hazardous machinery. The 22-mm standard mounting ensures broad compatibility with a wide range of control systems and enclosures, simplifying installation and maintenance procedures. As a product from Littelfuse, a recognized leader in circuit protection and control solutions, the RK-332 is built to meet stringent industry standards for quality and performance. It offers a practical and dependable solution for advanced system management and ensures operational continuity. The RK-332 is manufactured in the US and is CSA certified, UL Listed (E340889), CE compliant, and RCM certified.
  • Remote indication and reset for SE-330, SE-330AU, and SE-330HV protection relays
  • NEMA 4 and NEMA 13 rated for harsh industrial environments
  • Standard 22-mm mounting for easy panel integration
  • Enhances operational efficiency and safety by enabling remote control
  • Manufactured in the US, CSA certified, UL Listed, CE, and RCM certified

Specifications

Application
NA
Brand Name
Littelfuse
Mounting Type
Panel-mounted, 22 mm
Nema Rating
NEMA 4/NEMA 13
Series
SE-330, SE-330AU, SE-330HV
Size
22 mm mounting
Special Features
NEMA 4 and NEMA 13 rating
Standard
CSA UL
Sub Brand
RK 332 Series
Type
Remote Indication
Package Dimensions (L x W x H)
2.2 IN x 1.1 IN x 1.7 IN
Package Dimensions (L x W x H)
5.588 cm x 2.794 cm x 4.318 cm
RTXD Extractor Tool

6896057-1

RTXD Extractor Tool
Relay Accessories, Sockets & Clips, Printed Circuit Board, Phenolic, Printed Circuit Board, 6, Socket, Potter & Brumfield R10

1-1393143-3

Relay Accessories, Sockets & Clips, Printed Circuit Board, Phenolic, Printed Circuit Board, 6, Socket, Potter & Brumfield R10
Relay Accessories, Sockets & Clips, Solder, Polyester, Printed Circuit Board, 2, Socket, Potter & Brumfield R10

1-1393143-6

Relay Accessories, Sockets & Clips, Solder, Polyester, Printed Circuit Board, 2, Socket, Potter & Brumfield R10
Power supply for DIN-rail

PS-60

Power supply for DIN-rail
IP67 SCP-X Extreme Environment Series Power Supply. Double Stacked, Output Power 2 x 100W, Output Voltage 24 Vdc, Output Current 7.6 A total, 3.8 A per pair

SCP102D24X-C02

IP67 SCP-X Extreme Environment Series Power Supply. Double Stacked, Output Power 2 x 100W, Output Voltage 24 Vdc, Output Current 7.6 A total, 3.8 A per pair

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.