Citel 240/120 Volt 50kA Surge Protection Device | Split Phase
Dwayne Kula | President, CTO and Founder
Out of stock
Product Specifications
Key Features
| Brand | Citel |
| SPD Type | UL1449 TYPE 1 LISTED |
| Volts | 240/120 |
| Phase | 1S Split Phase |
| 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 | 1PH, 3W+G, Split Phase |
| 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 is a panel-mounted surge protective device for 240/120V single-phase split-phase electrical systems. It is designed for service entrance, branch panel, and distribution panel protection using hybrid MOV-GSG technology.
This Type 1 SPD provides protection across L-L, L-N, L-G, and N-G modes, with 50kA surge current protection per mode. It uses a threaded 1/2 in NPT mounting connection and 36 in #12 AWG leads.
Core Performance and Output
The device supports a 1PH, 3W+G split-phase network configuration. Its maximum continuous operating voltage is 280/140/140/120, and its voltage protection ratings are 1200/700/1200/1200.
The SPD has a nominal discharge current rating of 20kA, a 50kA maximum surge current rating, and a 150kA SCCR.
Build Quality and Physical Characteristics
The Citel M50-A Series uses MOV-GSG surge protection technology and provides L-N, L-G, and N-G protection with no leakage current. It is suitable for indoor or outdoor installation.
Where This Product Fits Best
This surge protective device is suited to lighting-related panel protection work where a 240/120V split-phase Type 1 SPD is required.
- lighting maintenance support
- retrofit support
- code compliance upgrades
- service stock for maintenance teams
- field repair projects
Installation and Long-Term Use
The device mounts through a threaded 1/2 in NPT connection and connects with 36 in #12 AWG leads. Its fail-safe design does not require upstream overcurrent protection.
Real-time diagnostics include LED status indication and an audible alarm to identify device status.
Safety, Certifications, and Warranty
This surge protective device is UL 1449 Type 1 Listed.
Frequently Asked Questions
Q: What electrical system is this surge protective device designed for?
A: The Citel M50-A Series is designed for 240/120V, single-phase split-phase, 3-wire plus ground electrical systems.
Q: Does this SPD require upstream overcurrent protection?
A: No. The Citel M50-A Series has a fail-safe design that does not require upstream overcurrent protection.
Q: How does the surge protective device report its status?
A: The Citel M50-A Series provides real-time status diagnostics through an LED indicator and audible alarm.
Web ID: 2753
