Littelfuse EVR-2B09-1 - The EVR Series printed circuit board (PCB) two-pole (2P) ac power relay is designed to switch EV charging applications on and off. Its extended contact gap of greater than 3 mm provides better isolation and allows for usage in higher elevation environments. The very compact form factor has a low temperature rise and heavy-duty power switching current up to 40 A/277 V ac. This relay family enables compliance with all EV charging infrastructure standards such as IEC 62955, IEC 62752 and UL 2231.
Littelfuse

EVR-2B09-1

Documents & Media
Specification Sheet

Contact for Pricing

Minimum Qty: 200

Multiplier: 200

*Contact for lower quantities*

Overview

The **Littelfuse EVR-2B09-1** is a high-performance two-pole (2P) AC power relay engineered for the rigorous demands of electric vehicle (EV) charging infrastructure. Designed to meet the stringent requirements of modern EV charging systems, this compact yet robust relay delivers exceptional switching reliability, superior isolation, and compliance with critical industry standards. With a **40A/277V AC switching capacity**, the EVR-2B09-1 is built to handle heavy-duty power applications while maintaining low temperature rise, ensuring long-term durability and operational efficiency in high-demand environments. **Key Features and Benefits:** - **Extended Contact Gap (3mm+):** The EVR-2B09-1 features an extended contact gap exceeding 3mm, providing enhanced electrical isolation. This design is particularly advantageous in higher elevation environments where reduced air density could compromise standard relays, ensuring consistent performance and safety across diverse geographical conditions. - **Compact Form Factor:** Despite its powerful switching capabilities, the relay maintains a very compact footprint, making it ideal for space-constrained installations in EV charging stations, control panels, and industrial automation systems. Its low profile facilitates easy integration into existing designs without requiring extensive modifications. - **Heavy-Duty Power Switching:** Capable of switching up to **40A at 277V AC**, the EVR-2B09-1 is engineered to handle the high currents typical in EV charging applications. This robust performance ensures reliable operation even under continuous or intermittent load conditions, reducing the risk of downtime and maintenance costs. - **Compliance with EV Charging Standards:** The EVR-2B09-1 meets critical industry standards, including **IEC 62955**, **IEC 62752**, and **UL 2231**, ensuring it aligns with global safety and performance requirements for EV charging infrastructure. This compliance simplifies certification processes for manufacturers and operators, accelerating deployment and reducing compliance-related risks. - **Low Temperature Rise:** The relay’s advanced thermal management design minimizes temperature rise during operation, enhancing reliability and extending service life. This feature is particularly important in high-power applications where thermal stress can accelerate wear and tear on components. **Applications and Industries:** The EVR-2B09-1 is purpose-built for **EV charging stations**, including residential, commercial, and industrial chargers. Its high switching capacity and compliance with EV-specific standards make it suitable for **Level 1, Level 2, and DC fast charging** systems. Additionally, the relay’s robust design and extended contact gap make it a versatile solution for other high-power switching applications, such as **industrial automation, renewable energy systems, and motor control circuits**. **Why Choose Littelfuse?** Littelfuse is a global leader in circuit protection and switching solutions, renowned for its innovation, reliability, and adherence to industry standards. With decades of experience in power electronics, Littelfuse delivers products that meet the evolving needs of modern industries, including EV infrastructure. The EVR-2B09-1 exemplifies this commitment, offering engineers and system integrators a trusted component for critical power switching applications. Its combination of performance, compliance, and compact design positions it as a preferred choice for professionals seeking to optimize their EV charging systems. **Installation and Integration:** The EVR-2B09-1 is designed for ease of installation, featuring a **PCB-mountable form factor** that simplifies integration into control boards and charging station enclosures. Its **low profile and standardized footprint** ensure compatibility with existing relay sockets and mounting configurations, reducing installation time and complexity. For optimal performance, professionals should ensure proper thermal management and adhere to manufacturer guidelines for electrical clearance and load ratings. **Conclusion:** For engineers and system designers tasked with developing reliable, high-performance EV charging infrastructure, the **Littelfuse EVR-2B09-1** offers a compelling solution. Its combination of **high switching capacity, extended contact gap, compact design, and industry compliance** makes it an ideal choice for modern power switching applications. By selecting the EVR-2B09-1, professionals can enhance the safety, efficiency, and longevity of their charging systems while leveraging Littelfuse’s reputation for quality and innovation.
  • 40A/277V AC switching capacity for heavy-duty power applications
  • Extended contact gap (>3mm) for superior isolation in high-elevation environments
  • Compact PCB-mountable form factor for space-constrained installations
  • Compliant with IEC 62955, IEC 62752, and UL 2231 EV charging standards
  • Low temperature rise for enhanced reliability and longevity

Specifications

Compliance
IEC 62955, IEC 62752, UL 2231
Connection Type
PCB
Contact Gap
3 mm+
Current Rating
40 A
Mounting Type
PCB Mount
Mounting Type
PCB-mountable
Poles
2P
Series
EVR
Size
Compact
Voltage Rating
277 V AC
RTXD Extractor Tool

6896057-1

RTXD Extractor Tool
RTXP 18

RK926011-BC

RTXP 18
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.