Littelfuse M4700.0040 - Indicator Panel. 20 channels,110V DC/AC. The Alarm Indicator, M4700 provide flush mounted LED based indication with 20 channels. Each channel can be used to indicate the state of one potential free contact. All indicator units are available with either negative or positive reference. An insert paper label provides the opportunity to print a description or instruction right next to the related channel LED. The indicator units are available for both DC of AC supply. Input signals can be +24 VDC, +48 VDC or +110 VDC. The indicator panel is also equipped with an alarm relay, a siren relay and a built-in siren. A TEST push button located on the front will, while activated, ignite all LEDs to confirm proper operation. An auxiliary push button is provided for application dependant use. The auxiliary push button is directly connected to the plug-in terminals on the rear side of the unit.
Littelfuse

M4700.0040

UPC: 079458962185

Documents & Media
Brochure

Contact for Pricing

Overview

The Littelfuse M4700.0040 is a 20-channel LED-based alarm indicator panel designed for flush mounting in industrial control and monitoring systems. This panel operates on 110V DC or AC, providing clear visual indication for up to 20 potential-free contacts. Each channel features an insert paper label for custom descriptions, enhancing operational clarity. The M4700.0040 supports DC input signals of +24V, +48V, or +110V, offering significant application flexibility. Integrated alarm and siren relays, along with a built-in siren, ensure immediate notification of system events. A front-mounted TEST push button allows for easy verification of all LED indicators, confirming proper functionality. An auxiliary push button is also included, directly wired to rear plug-in terminals for application-specific control functions. The unit includes a built-in siren and is equipped with both alarm and siren relays for dual notification capabilities. The TEST push button activates all LEDs simultaneously to confirm operational readiness, while the auxiliary push button provides additional customizable control options. This panel is suitable for process monitoring, security systems, and automation applications where clear, immediate status indication and audible/visual alarms are critical for operational efficiency and safety. The robust construction and versatile input options make it a reliable choice for various industrial environments. The M4700.0040 is ideal for applications requiring precise status monitoring and immediate fault alerts, such as in manufacturing automation, power distribution monitoring, and safety interlock systems. Its ability to accept multiple DC input voltages (+24V, +48V, +110V) ensures compatibility with a wide range of control systems. The inclusion of a built-in siren and dedicated alarm/siren relays provides a comprehensive notification solution, ensuring that critical events are immediately recognized. The flush-mount design facilitates clean integration into control panels, while the front-accessible TEST button simplifies maintenance and operational checks.
  • 20-channel LED-based alarm indication for flush mounting.
  • Operates on 110V DC or AC supply.
  • Supports DC input signals: +24V, +48V, +110V.
  • Integrated alarm relay, siren relay, and built-in siren.
  • Front-mounted TEST push button for LED verification and auxiliary push button for custom functions.

Specifications

Application
Marine
Brand Name
Littelfuse
Special Features
None
Standard
CE Label
Sub Brand
M4700 Series
Type
Alarm Monitoring

Similar Products

M4700.0010

Voltage Rating: 24 V DC/AC

Poles: 20

Connection Type: Plug-in terminals

M4700.0050

Voltage Rating: 24 V DC/AC

Color: LED-based (color not specified)

Material: Plastic (insert paper label)

M4700.0090

Voltage Rating: 230 V AC

Connection Type: Plug-in terminals

Mounting Type: Flush Mounted

M4700.0140

Voltage Rating: +24 VDC, +48 VDC, or +110 VDC

Poles: 20

Connection Type: Plug-in terminals

M4700.0120

Voltage Rating: 24 VDC / 48 VDC / 110 VDC

Poles: 20 channels

Connection Type: Plug-in terminals

M4700.0130

Voltage Rating: +24 VDC, +48 VDC, +110 VDC, 230V AC

Poles: 20

Connection Type: Plug-in terminals

You May Also Be Interested In

Indicator Panel. 20 channels, 24V DC/AC. The Alarm Indicator, M4700 provide flush mounted LED based indication with 20 channels. Each channel can be used to indicate the state of one potential free contact. All indicator units are available with either negative or positive reference. An insert paper label provides the opportunity to print a description or instruction right next to the related channel LED. The indicator units are available for both DC of AC supply. Input signals can be +24 VDC, +48 VDC or +110 VDC. The indicator panel is also equipped with an alarm relay, a siren relay and a built-in siren. A TEST push button located on the front will, while activated, ignite all LEDs to confirm proper operation. An auxiliary push button is provided for application dependant use. The auxiliary push button is directly connected to the plug-in terminals on the rear side of the unit.

M4700.0010

Indicator Panel. 20 channels, 230V AC.. The Alarm Indicator, M4700 provide flush mounted LED based indication with 20 channels. Each channel can be used to indicate the state of one potential free contact. All indicator units are available with either negative or positive reference. An insert paper label provides the opportunity to print a description or instruction right next to the related channel LED. The indicator units are available for both DC of AC supply. Input signals can be +24 VDC, +48 VDC or +110 VDC. The indicator panel is also equipped with an alarm relay, a siren relay and a built-in siren. A TEST push button located on the front will, while activated, ignite all LEDs to confirm proper operation. An auxiliary push button is provided for application dependant use. The auxiliary push button is directly connected to the plug-in terminals on the rear side of the unit.

M4700.0130

Indicator Panel. 20 channels, 230V AC. The Alarm Indicator, M4700 provide flush mounted LED based indication with 20 channels. Each channel can be used to indicate the state of one potential free contact. All indicator units are available with either negative or positive reference. An insert paper label provides the opportunity to print a description or instruction right next to the related channel LED. The indicator units are available for both DC of AC supply. Input signals can be +24 VDC, +48 VDC or +110 VDC. The indicator panel is also equipped with an alarm relay, a siren relay and a built-in siren. A TEST push button located on the front will, while activated, ignite all LEDs to confirm proper operation. An auxiliary push button is provided for application dependant use. The auxiliary push button is directly connected to the plug-in terminals on the rear side of the unit.

M4700.0090

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.