Citel 208/120 Volt 50kA Surge Protection Device | 3 Phase Wye
Dwayne Kula | President, CTO and Founder
Out of stock
Product Specifications
Key Features
| Brand | Citel |
| SPD Type | UL1449 TYPE 1 LISTED |
| Volts | 208/120 |
| Phase | 3Y WYE |
| Modes | L-L, L-N, L-G, N-G |
| Voltage Protection Rating | 1200/700/1200/1200 |
| Maximum Continuous Operating Voltage | 280/140/140/120 |
| 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.
Additional Resources
Product Overview
The Citel M50-A Series surge protective device is a panel-mounted SPD for 208/120V, 3-phase, 4-wire plus ground Wye electrical systems. It is designed for service entrance, branch panel, and distribution panel protection.
This UL 1449 Type 1 Listed device uses hybrid MOV-GSG technology and provides 50kA surge current protection per mode.
Core Performance and Output
The device provides protection across L-L, L-N, L-G, and N-G modes. Its voltage protection ratings are 1200V L-L, 700V L-N, 1200V L-G, and 1200V N-G. Maximum continuous operating voltage is 280V L-L, 140V L-N, 140V L-G, and 120V N-G.
The SPD has a 20kA nominal discharge current rating and a 150kA short-circuit current rating. It provides L-N, L-G, and N-G protection with no leakage current.
Build Quality and Physical Characteristics
The unit mounts through a threaded 1/2 in NPT connection and uses 36 in #12 AWG leads for electrical connection. It is suitable for indoor or outdoor installation.
Installation and Long-Term Use
The fail-safe design does not require upstream overcurrent protection. LED status indication and an audible alarm provide real-time diagnostic notification.
Safety, Certifications, and Warranty
This surge protective device is UL 1449 Type 1 Listed.
Frequently Asked Questions
Q: What electrical system is this Citel surge protective device designed for?
A: This Citel surge protective device is designed for 208/120V, 3-phase, 4-wire plus ground Wye electrical systems.
Q: Does this surge protective device require upstream overcurrent protection?
A: No. This Citel M50-A Series surge protective device has a fail-safe design that does not require upstream overcurrent protection.
Q: How does the Citel M50-A Series indicate operating status?
A: The Citel M50-A Series provides real-time diagnostics through LED status indication and an audible alarm.
Web ID: 2780
