Description
MidNite Solar 115VDC / 90VAC Lightning Arrestor for Battery Systems (MNSPD-115)
Overview
The MidNite Solar MNSPD-115 is a high-quality surge protection device (SPD) designed to protect sensitive electronic components in renewable energy systems from lightning-induced transients and voltage surges. Rated for 115 VDC and 90 VAC applications, this model is ideal for protecting low-voltage DC battery systems, inverters, charge controllers, and other off-grid or grid-tied components from damaging spikes. It provides robust protection in both common and differential modes and uses high-energy MOVs (metal oxide varistors) encased in a rugged, powder-coated aluminum housing for long service life in outdoor or indoor environments.
Domestic sourcing matters—here’s how this product qualifies:
Proudly Made in the USA
Every MidNite Solar MNSPD-115 is engineered, manufactured, and assembled in Arlington, Washington, USA.
MidNite Solar’s U.S. manufacturing facility ensures strict quality control and superior reliability, producing surge devices trusted by professionals worldwide for renewable and industrial power systems.
When you choose MidNite Solar, you’re choosing American craftsmanship and proven surge protection technology.
Key Features
- Protects against lightning and electrical surges — ideal for renewable energy systems, battery banks, and inverters.
- 115 VDC / 90 VAC rating — designed for low-voltage DC circuits and battery-based systems.
- Type 2 surge protective device (per UL 1449 3rd Edition) for both common and differential mode protection.
- Visual LED indicator lights show operational status at a glance (blue LEDs illuminate when protection is active).
- Compact, rugged aluminum enclosure suitable for indoor or outdoor installation (NEMA 4-rated).
- Pre-wired leads for fast connection to DC or AC systems.
- Replaceable MOV modules for long service life and easy maintenance.
- Built and tested to UL 1449 3rd Edition and ETL listed for compliance.
Applications
- Battery-based DC power systems (12V, 24V, 48V)
- Solar charge controllers and inverter inputs
- Off-grid or hybrid solar power systems
- Small wind, hydro, or microgrid systems
- Telecom and remote monitoring enclosures
- Industrial controls and DC distribution panels
Technical Specifications
| Model | MNSPD-115 |
|---|---|
| Nominal Voltage Rating | 115 VDC / 90 VAC |
| MCOV (Maximum Continuous Operating Voltage) | 150 VDC / 125 VAC |
| Clamping Voltage | 300 VDC typical (line-to-ground) |
| Peak Surge Current | 115,000 Amps (8/20 µs waveform) |
| Protection Modes | Common mode (L–G, N–G) and differential mode (L–N) |
| Indicator Lights | Dual blue LEDs for operational status (on = active protection) |
| Enclosure | Powder-coated aluminum, NEMA 4 (weather-resistant) |
| Leads | 18 AWG, pre-wired, 36″ length (typical) |
| Mounting | Standard ½″ knockout (chassis mount) |
| Certifications | ETL Listed to UL 1449 3rd Edition, Type 2 SPD |
| Dimensions (H × W × D) | 4.5″ × 4″ × 3″ (11.4 × 10.2 × 7.6 cm) |
| Weight | ≈ 1 lb (0.45 kg) |
| Manufacturer | MidNite Solar, Inc. |
| Warranty | 5-year limited warranty |
Data derived from MidNite Solar MNSPD product documentation and manufacturer specifications (SPD Spec Sheet).
Design & Performance
The MNSPD-115 is engineered for high-energy transient suppression in renewable and low-voltage DC systems. It utilizes multiple MOVs to safely dissipate surge energy while maintaining protection even after repeated events. The aluminum enclosure shields sensitive components from EMI and moisture, while the LED indicators provide instant visual confirmation that the SPD is operational.
Suitable for installation on battery enclosures, combiner boxes, inverter cabinets, or disconnect panels, the MNSPD-115 offers flexible and durable surge protection wherever it’s needed.
Integration & Expandability
- Compatible with MidNite Solar combiners, disconnects, and battery enclosures.
- Compact footprint allows easy retrofitting into existing systems.
- Ideal for multi-point protection in large solar or hybrid installations.
