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home > Newmar 30 Amp Single Pole Breaker W/ Black Throw > Newmar 30 Amp Single Pole Breaker W/ Black Throw
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Newmar 30 Amp Single Pole Breaker W/ Black ThrowEquip your electrical system with reliable protection using the Newmar 30 Amp Single Pole Breaker featuring a sleek black throw handle. Designed for demanding environments like marine vessels, RVs, and off grid setups, this breaker delivers precise circuit safeguarding without compromising on safety or performance. Its trip free mechanism ensures consistent operation, preventing accidental resets under fault conditions and extending the life of your
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Equip your electrical system with reliable protection using the Newmar 30 Amp Single Pole Breaker featuring a sleek black throw handle. Designed for demanding environments like marine vessels, RVs, and off-grid setups, this breaker delivers precise circuit safeguarding without compromising on safety or performance. Its trip-free mechanism ensures consistent operation, preventing accidental resets under fault conditions and extending the life of your wiring and appliances.

Robust Construction for Harsh Conditions

Crafted to withstand vibrations, moisture, and temperature swings common in boating or mobile applications, this breaker combines durability with precision engineering. The magnetic-hydraulic trip mechanism responds swiftly to overloads and short circuits, minimizing downtime and potential damage. With #10 screw terminals on the rear, wiring is straightforward and secure, supporting clean installations in tight spaces.

  • Magnetic-hydraulic trip-free design for reliable, repeatable protection
  • Rated for 65 VDC or 277 VAC at 30 amps, ideal for diverse power systems
  • Compact single-pole configuration saves panel space
  • Black toggle handle for easy status identification in low-light conditions

Seamless Compatibility Across Panels

This versatile breaker slots perfectly into Newmar electrical panels while fitting most competing brands, making it a smart upgrade or replacement choice. Whether refreshing an older marine distribution board or building a custom RV setup, its standard form factor ensures hassle-free integration. Note that for higher amp models beyond 30A, verify system voltage to match line-to-neutral or line-to-line configurations for optimal safety.

Real-World Applications and Benefits

Boat owners trust it to protect inverters, battery chargers, and lighting circuits from surges caused by choppy waters or engine starts. RV enthusiasts appreciate its role in safeguarding AC units, microwaves, and converters during long road trips. Beyond protection, it contributes to system efficiency by allowing precise load management—pair it with monitoring tools to avoid nuisance trips from intermittent high draws like power tools or pumps.

Users report fewer false trips compared to thermal-only breakers, thanks to the hydraulic delay that differentiates safe inrush currents from true faults. This reliability translates to peace of mind, reducing troubleshooting time and repair costs over years of service.

Simple Installation Tips

  1. Power down the system and verify with a multimeter before handling.
  2. Secure mounting hardware separately to the panel DIN rail or studs.
  3. Connect wires to rear terminals, torque to spec (typically 20-25 in-lbs), and insulate exposed ends.
  4. Test the trip function post-install by simulating an overload safely.
  5. Label the breaker for quick reference during maintenance.

Regular checks—every six months—keep it performing: inspect for corrosion, ensure free toggle movement, and confirm trip/reset functionality.

Frequently Asked Questions

What voltage and amperage ratings does this 30 amp single pole breaker support?

It's rated for up to 65 VDC or 277 VAC at 30 amps, making it suitable for a wide range of low- to medium-voltage AC and DC applications in marine and RV systems.

Is this breaker certified for safety standards?

Yes, it's UL recognized, CSA listed for both AC and DC, and meets USCG requirements, ensuring compliance in commercial marine and recreational use.

Does it fit panels from other manufacturers?

Absolutely—it matches standard panel footprints from Newmar and most other brands, simplifying replacements or expansions.

What's the difference between single pole and double pole versions?

Single pole protects one circuit leg, ideal for 120V loads; double pole handles two legs for 240V appliances, offering ganged operation for balanced protection.

How does the trip mechanism work?

The magnetic-hydraulic "trip-free" design uses magnetism for instant short-circuit response and hydraulics for timed overload protection, preventing manual override during faults.

What handle colors are available?

Options include red, white, or black toggle handles, allowing customization for visibility or panel aesthetics.

Is mounting hardware included?

Mounting screws are not provided; source them separately to match your panel's specs for a secure fit.

What are common uses for this breaker in marine or RV setups?

Perfect for safeguarding pumps, lights, chargers, and small appliances; its 30A capacity handles moderate loads like coffee makers or fans reliably.

All circuit breakers offered by NEWMAR are UL recognized and CSA listed for AC and DC
systems and meet USCG requirements as a qualified circuit protection device.

Single and Double Pole

Fit all NEWMAR electrical panels, as well as most other brands

  • Feature magnetic-hydraulic "trip-free" mechanism
  • 5-30 amp rated to 65 VDC or 277 VAC; 40, 50 amp rated to 32 VDC or 120 VAC (See rating note below).
  • Mounting scrws not provide order separatly
  • #10 screw terminals on rear for wiring

Options

  • Red, white or black toggle handles
  • Single pole values: 5, 10, 15, 20, 25, 30, 40 or 50 amp.
  • Double pole values: 15, 20, 30 or 50 amp

Important Circuit Breaker Rating Note: Standard series breakers shown on this page which are rated higher than 30 amps are acceptable for use in 230 VAC Line-to-Line systems (where each leg is 115 VAC - to - neutral), but are not rated for 230 VAC line-to-neutral systems.



All circuit breakers provided by NEWMAR have passed UL certification and CSA certification, are suitable for AC and DC systems, and meet the requirements of USCG, and are qualified circuit protection equipment. Single and double...
SKU: NVN-1001135
MPN: 30ASB
UPC:

Newmar 30 Amp Single Pole Breaker W/ Black Throw

Item no : 89329800286
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US$ 54.49
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