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Citel 277/480 Volt 50kA Surge Protection Device

SKU: M50-277Y-A | Web ID: 2778
Starting at: $311.84
Availability: 4 In Stock Ships 2-3 Days

The CITEL M50-A Series surge protective device is an excellent choice for safeguarding electrical panels in industrial control systems, thanks to its robust 50kA surge current protection and hybrid MOV-GSG technology. Its UL 1449 Type 1 listing ensures reliability for service entrance and distribution panels, while the fail-safe design and real-time diagnostics enhance operational safety. Ideal for both indoor and outdoor installations, this SPD is particularly suited for environments like manufacturing facilities and warehouses where electrical stability is crucial.

Dwayne Kula | President, CTO and Founder

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Product Specifications

UL Listed - Verified for Electrical Safety and Performance10 Year Unlimited Usage Warranty

Key Features

BrandCitel
SPD TypeUL1449 TYPE 1 LISTED
Volts277/480
Phase3Y
ModesL-L, L-N, L-G, N-G
Voltage Protection Rating2500/1200/1500/1200
Maximum Continuous Operating Voltage560/320/320/280
IN20 kA
SCCR150 kA
IMAX50 kA
TechnologyMOV-GSG
Network Configuration3PH, 4W+G, Wye
Connection Method36 in #12 AWG LEADS
MountingThreaded 1/2 in NPT
Fail SafeYes, no upstream over current protection required
Real-Time DiagnosticsLED and audible alarm

Product Description

UL Listed - Verified for Electrical Safety and Performance10 Year Unlimited Usage Warranty

Key Features

  • Brand: Citel
  • SPD Type: UL1449 TYPE 1 LISTED
  • Volts: 277/480
  • Phase: 3Y
  • Modes: L-L, L-N, L-G, N-G
  • Voltage Protection Rating: 2500/1200/1500/1200
  • Maximum Continuous Operating Voltage: 560/320/320/280
  • IN: 20 kA
  • SCCR: 150 kA
  • IMAX: 50 kA
  • Technology: MOV-GSG
  • Network Configuration: 3PH, 4W+G, Wye
  • Connection Method: 36 in #12 AWG LEADS
  • Mounting: Threaded 1/2 in NPT
  • Fail Safe: Yes, no upstream over current protection required
  • Real-Time Diagnostics: LED and audible alarm

The CITEL M50-A Series is a panel-mounted surge protective device (SPD) designed for service entrance, branch, and distribution panel applications, featuring hybrid MOV-GSG technology, 50kA surge current protection per mode, LED status indication, and an audible alarm.

It provides L-N, L-G, and N-G protection with no leakage current, is suitable for indoor or outdoor installation, and is UL 1449 Type 1 Listed.


Web ID: 2778

Product Overview

The Citel 277/480 Volt 50kA Surge Protection Device is engineered to safeguard electrical systems from voltage spikes and surges. Designed for service entrance and distribution panel applications, this device offers robust protection with a 50kA surge current capacity. It is suitable for both indoor and outdoor installations, providing flexibility in various environments.

This surge protection device features a threaded 1/2 in NPT mounting, making it compatible with standard installation practices. It includes real-time diagnostics with LED indicators and an audible alarm, ensuring immediate awareness of the device's operational status. The UL1449 Type 1 listing confirms its compliance with industry standards.

Core Performance and Output

The Citel Surge Protection Device delivers a maximum surge current protection of 50kA per mode, ensuring reliable performance during electrical disturbances. Its hybrid MOV-GSG technology provides effective protection across multiple modes: L-L, L-N, L-G, and N-G. The device operates at a voltage protection rating of 2500/1200/1500/1200, suitable for 277/480V systems.

With a short-circuit current rating (SCCR) of 150kA, this device is built to handle significant electrical stress without compromising safety. The maximum continuous operating voltage (MCOV) is rated at 560/320/320/280, ensuring compatibility with various electrical systems. Note that excessive surge events may require inspection to ensure continued protection.

Adjustability and Control Options

This surge protection device includes real-time diagnostics, featuring LED indicators and an audible alarm to alert users of its status. These diagnostics provide immediate feedback, allowing for quick response to any issues that may arise. The device does not require upstream overcurrent protection, simplifying installation and maintenance.

The threaded 1/2 in NPT mounting allows for straightforward installation in standard panel configurations. The 36-inch #12 AWG leads provide ample length for flexible connection options, accommodating various installation scenarios.

Longevity and Reliability

Built with hybrid MOV-GSG technology, the Citel Surge Protection Device is designed for long-term reliability and durability. Its fail-safe design ensures that the device will not compromise the system's safety, even in the event of a failure. The robust construction and high SCCR rating contribute to its longevity in demanding environments.

The device's UL1449 Type 1 listing guarantees compliance with stringent safety standards, providing peace of mind for facility operators and maintenance personnel. Regular inspections are recommended to ensure optimal performance over time.

Build Quality and Physical Characteristics

The Citel Surge Protection Device features a compact design with a threaded 1/2 in NPT mounting, facilitating easy integration into existing electrical panels. Its durable construction is suitable for both indoor and outdoor environments, offering versatility in application.

The device's real-time diagnostics, including LED indicators and an audible alarm, are housed within a robust enclosure, ensuring reliable operation in various conditions. The 36-inch #12 AWG leads provide flexibility in installation, accommodating different panel configurations.

Where This Product Fits Best

This surge protection device is ideal for environments where electrical systems require robust protection against voltage surges. Its design and features make it suitable for a range of applications, ensuring system reliability and safety.

  • fixture repair and replacement
  • emergency backup integration
  • lighting maintenance support
  • retrofit support

Its UL1449 Type 1 listing and high SCCR rating make it suitable for both indoor and outdoor installations, providing flexibility in various environmental conditions.

Installation and Long-Term Use

The Citel Surge Protection Device is designed for straightforward installation with its threaded 1/2 in NPT mounting and 36-inch #12 AWG leads. This allows for easy integration into existing electrical panels without the need for additional upstream overcurrent protection.

For long-term use, regular inspections are recommended to ensure the device continues to provide optimal protection. The real-time diagnostics, including LED indicators and an audible alarm, facilitate ongoing monitoring of the device's status.

How This Fixture Is Commonly Used

This surge protection device is typically installed at service entrances and distribution panels, providing critical protection for electrical systems. Its compact design and flexible mounting options allow for installation in a variety of panel configurations.

Spacing and layout patterns depend on the specific electrical system requirements and the number of devices being protected. While higher surge capacity reduces the number of devices needed, it may require careful consideration of panel space and configuration.

Safety, Certifications, and Warranty

The Citel Surge Protection Device is UL1449 Type 1 listed, ensuring compliance with industry safety standards. This certification confirms its suitability for use in both indoor and outdoor environments, providing reliable protection against voltage surges.

The device includes a fail-safe design, eliminating the need for upstream overcurrent protection. It is built to withstand significant electrical stress, with a high SCCR rating of 150kA. Warranty details are available upon request, providing assurance of the device's quality and reliability.

Frequently Asked Questions

Q: What is the maximum surge current capacity of this device?

A: The maximum surge current capacity is 50kA per mode.

Q: Is this device suitable for outdoor installation?

A: Yes, it is suitable for both indoor and outdoor installations.

Q: Does this device require upstream overcurrent protection?

A: No, it features a fail-safe design that does not require upstream overcurrent protection.

Q: What type of diagnostics does this device offer?

A: It includes real-time diagnostics with LED indicators and an audible alarm.

Application Questions and Clarification

Q: Can this device be used for emergency backup integration?

A: Yes, it is suitable for emergency backup integration applications.

Q: Is this device appropriate for retrofit support?

A: Yes, it is designed to support retrofit applications.