Description
The Leviton 52120‑M3 is a robust Type 2 modular surge panel protector crafted for 120/208 VAC 3‑phase Wye systems.
Technical Specifications
| Condition |
New/Never Used Surplus |
| Brand |
Leviton |
| Category |
Panel Accessories |
| Part Number |
52120-M3 |
| Subcategory |
Surge Arrestor/Suppressor |
| Frequency |
50/60 Hz |
| Recommended Circuit Breaker Rating |
30 A, 120/208 V |
| Surge Technology |
40 mm MOV Design |
| Voltage Configuration |
120/208 V, 3-Phase Wye |
| Enclosure |
Type 12 |
| Flammability |
Rated V-2 per UL 94 |
| Operating Temperature |
–20 °C to 40 °C |
| Relative Humidity |
5% to 95% non-condensing |
| Storage Temperature |
–4 °F to 185 °F (–20 °C to 85 °C) |
| Connection Type |
Parallel-hardwired, feed-through dual-wire terminal block; accepts up to #3 AWG wire |
| Surge Counter |
No |
| Diagnostics |
Real-time protection status LEDs & audible alarm |
| MCOV |
L-N: 150 V, L-G: 300 V, N-G: 150 V, L-L: 300 V |
| Maximum Surge Current, Per Mode (Per Phase) |
100 kA (200 kA total) |
| Noise Rejection |
–20 to –40 dB at 5 kHz–10 MHz |
| Nominal Discharge Current Rating |
20 kA |
| Protection Mode |
4-Mode |
| Remote Monitoring |
Dry contact leads N.O./N.C. Form C, rated 7 A @ 240 VAC or 30 VDC |
| Short Circuit Current Rating |
100 kA |
| VPR |
L-N: 1000 V, L-G: 1500 V, N-G: 700 V, L-L: 1500 V |
| Replaceable Modules |
Yes |
| ANSI/IEEE Category A, B, and C |
C-62.41 & C-62.45 |
| UL Certification |
UL 1449 4th Edition, cULus Listed Type 2 |
| Weight |
10.00 lbs |
Information About 52120-M3
The Leviton 52120-M3 is a modular Type 2 surge panel protector designed for 120/208 V 3-phase WYE electrical systems. It provides robust protection against voltage transients with a capacity of up to 100 kA per phase, ensuring the safety and reliability of critical equipment. Built with replaceable surge modules, a NEMA 12 steel enclosure, and advanced diagnostics, it is ideal for commercial, industrial, and large residential applications requiring dependable surge suppression.
Key Features:
- High Surge Capacity: 100 kA per phase (200 kA total) with 4-mode protection (L-N, L-G, N-G, L-L).
- Replaceable Surge Modules: Modular design with 3× 2120 and 1× 8120-GN units for simplified maintenance.
- Advanced Diagnostics: Real-time protection status LEDs, audible alarm, and Form C dry contacts for remote monitoring.
- Noise Filtering: –20 to –40 dB EMI/RFI attenuation at 5 kHz–10 MHz for improved power quality.
- Robust Construction: NEMA 12 steel enclosure with UL 94 V-2 flammability rating.
- Environmental Resilience: Operates from –20 °C to +40 °C in 5–95 % non-condensing humidity.
- Flexible Wiring: Parallel-hardwired terminal blocks accept up to #3 AWG wire for easy installation.
- Standards Compliance: UL 1449 4th Edition, CSA, and ANSI/IEEE C-62.41 & C-62.45 (Categories A, B, C).
The 52120-M3 delivers long-term, high-performance surge protection, making it a reliable solution for safeguarding electrical infrastructure in demanding environments.
