Dicor | RV Surge Protector | DP-SP50A-P | 50 Amp

Protect your RV from costly electrical damage with the Dicor DP-SP50A-P 50 Amp Pigtail Surge Protector. With 5,000 joules of 5-mode surge protection, automatic shut-off during dangerous voltage events, and visible diagnostic lights that warn you about pedestal wiring faults BEFORE you connect, the DP-SP50A-P is the kind of upfront investment that prevents the four-figure electrical repair bills that come from a single bad campground pedestal.

Why a Surge Protector Matters for RVs

Campground pedestals are notoriously inconsistent — miswired outlets, open grounds, low voltage during peak demand, voltage spikes during storms, and outright wiring faults are all common. A single bad pedestal can fry your converter, refrigerator board, AC unit, and other expensive RV electronics in seconds. A quality surge protector is the cheapest insurance policy you can buy for the rest of your RV's electrical system.

5,000 Joules — 5-Mode Surge Protection

The DP-SP50A-P delivers 5,000 joules of surge suppression across five protection modes — covering every wiring path where damaging surges can travel:

• L1-N (Line 1 to Neutral)
• L2-N (Line 2 to Neutral)
• L1-L2 (Line 1 to Line 2)
• L-G (Line to Ground)
• N-G (Neutral to Ground)

Combined with a response time of less than 1 nanosecond, the unit catches surges before they reach your RV's electrical system.

Automatic Shut Off/On — Disconnects During Dangerous Events

Unlike basic surge protectors that only absorb spikes, the DP-SP50A-P features automatic shut off/on. When voltage drops too low or spikes too high to be safe for your RV, the unit disconnects power automatically — and reconnects once voltage stabilizes back to safe levels. That's important because sustained low voltage (often called "brownouts") can damage AC compressors, motors, and electronics just as effectively as surges. The shut-off function protects against both.

Visible Diagnostic Lights — Spot Pedestal Faults BEFORE You Connect

One of the DP-SP50A-P's standout features: visible LED diagnostic lights that identify pedestal wiring faults before you connect your RV. The unit detects and displays the following conditions:

• Line 1 to Neutral (L1-N) — open neutral on leg 1
• Line 2 to Neutral (L2-N) — open neutral on leg 2
• Line 1 to Line 2 (L1-L2) — voltage between legs
• Line to Ground (L-G) — open ground detected
• Neutral to Ground (N-G) — reversed polarity or wiring fault
• Incorrect wiring indicator — alerts you to a mis-wired pedestal

Pro tip: Check the diagnostic lights every time you plug in at a new campsite BEFORE connecting your RV. If you see a wiring fault indicator, you've just been saved from a potentially catastrophic electrical event — find a different pedestal or notify the campground.

Surge Indicator Light Shows Protection Status

A dedicated surge indicator light shows the surge suppression status — so you can confirm at a glance that the unit's protective circuits are intact and functioning. Important because surge protectors can wear out over time as they absorb hits — the indicator light lets you know when it's time for a replacement.

Have 30A Service Instead?

If your RV is wired for 30-amp service rather than 50-amp, the Dicor DP-SP30A-P 30 Amp Surge Protector is the right-sized smaller sibling — same Dicor Power pigtail-style design with auto shut-off, diagnostic lights, weather-resistant case, and lifetime warranty, sized for 30A single-leg service with 3-mode protection.

Built for Outdoor Pedestal Use

The DP-SP50A-P is designed to live at the campground pedestal year-round:

• Weather-resistant case — built for outdoor use in rain and sun
• Metal locking ring — secures the connection at the pedestal and helps deter theft
• Wire brush included — for maintaining the brass prongs (clean prongs = solid electrical connection)

Pigtail-Style Design

The pigtail style features a flexible cable connecting the pedestal to your RV power cord — making it easier to position and connect than rigid surge protectors that have to bolt directly to the pedestal. The flexible cable also reduces strain on the pedestal outlet over time.

Limited Lifetime Warranty

Backed by Dicor's limited lifetime warranty — a meaningful commitment for an electrical safety product that customers depend on to protect tens of thousands of dollars of RV electrical equipment.

Key Features

• 50 amp, 120/240V pigtail surge protector
• 5,000 joules of 5-mode surge protection (L1-N, L2-N, L1-L2, L-G, N-G)
• Response time <1 nanosecond
• Automatic shut off/on — protects against high AND low voltage events
• Visible diagnostic lights identify pedestal wiring faults before connection
• Incorrect wiring indicator
• Surge indicator light shows protection status
• Weather-resistant case for outdoor pedestal use
• Metal locking ring for secure connection and theft deterrence
• Pigtail style with flexible cable for easier installation
• Wire brush included for brass prong maintenance
• Backed by a Limited Lifetime Warranty

Specifications

• Brand: Dicor (Dicor Power)
• Part Number: DP-SP50A-P
• Type: RV Pigtail Surge Protector
• Amperage: 50 amp
• Voltage: 120/240V
• Surge Protection: 5,000 joules
• Protection Modes: 5-Mode (L1-N, L2-N, L1-L2, L-G, N-G)
• Response Time: <1 nanosecond
• Auto Shut Off/On: Yes
• Diagnostic Lights: Yes — wiring fault indicators
• Incorrect Wiring Alert: Yes
• Surge Indicator Light: Yes
• Style: Pigtail (flexible cable)
• Weather Resistant: Yes
• Locking Ring: Metal
• Includes: Wire brush for brass prong maintenance
• Weight: 2 lbs
• Warranty: Limited Lifetime