Littelfuse M2000.0120 - Engine Controller 120. The M2000 Engine Controller will control and protect any industrial combustion engine, which accepts discreet I/O signals for control of the crank, the fuel valve and the stop solonoid (if applicable). The engine must be able to supply potential free contacts for starter disengagement and over speed alarm (normally done through a standard tacho relay). The M2000 is typically used as an engine controller for diesel or gas driven generator sets. The operator can start the engine either by pressing a button on the front facia, or by providing and external start signal through a potential free contact (e.g. a relay). The M2000 can be configured to perform multiple start attempts. The M2000 detects a successful start from the crank disconnect signal provided by the tacho relay (normally at 33percent of nominal speed). The M2000 will operate the fuel valve as well as a start warning signal shortly before cranking the engine. The progress of the start sequence is clearly indicated on the front facia LEDs.
Littelfuse

M2000.0120

UPC: 079458961959

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Overview

The Littelfuse M2000.0120 Engine Controller (SKU: M2000.0120) provides comprehensive control and protection for industrial combustion engines, specifically designed for applications like diesel or gas-driven generator sets. This unit accepts discrete I/O signals for precise management of critical engine functions including crank, fuel valve, and stop solenoid engagement. It requires potential-free contacts for starter disengagement and over-speed alarm, typically sourced from a standard tacho relay. Operators have flexible start initiation options: a direct button press on the front fascia or an external start signal via a potential-free contact. The M2000 controller is configurable to perform multiple start attempts, enhancing reliability in challenging conditions. Successful engine start is detected by the crank disconnect signal from the tacho relay, typically registering at 33% of the engine's nominal speed. Prior to initiating cranking, the M2000 manages the fuel valve operation and activates a start warning signal, alerting personnel to the impending engine start. The front fascia features clear LED indicators that provide real-time status updates on the start sequence progress, allowing for immediate visual monitoring. The M2000 series controller is built for dependable operation in industrial settings, ensuring optimal engine performance and safety through its direct I/O signal processing and configurable start logic. Its panel-mounted design and discrete connection types facilitate straightforward integration into existing control systems.
  • Controls and protects industrial combustion engines
  • Manages crank, fuel valve, and stop solenoid via discrete I/O
  • Supports external start signals and multiple start attempts
  • Detects successful start via tacho relay crank disconnect signal
  • Provides start warning signal and front fascia LED status indication

Specifications

Application
Marine
Brand Name
Littelfuse
Series
M2000
Special Features
8 Alarm shutdown inputs
Sub Brand
M2000 Series
Type
Engine Controls
Package Dimensions (L x W x H)
2 IN x 1 IN x 1 IN
Package Dimensions (L x W x H)
5.08 cm x 25.4 mm x 25.4 mm
Package Weight (Imperial)
0.250 L
Package Weight (Metric)
0.113 kg
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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.