Have You Done Any Mods?

You won't hit a ramp or speed bump even if you try.

Originally posted by apache swapped torsion axle with 5,000lb solid axle, slapped some leaf springs in there and 33" tires on 15"wheels.  Also installed 120V heat trace wire on water tanks and insulated them.  Pod is 6" taller now.

Nice work!!

CB185P-50 this is the one I installed. My work has used this breaker for a long time. When I switch it off the only thing drawing current on the trailer is the gas detector. waytekwire.com #46940.

From the Bussman website
Type III - Manual Reset The circuit breaker will remain tripped (in the OFF position) until an indicator button or lever is manually reset. Type III breakers are also available with a switchable feature, which allows you to use an external button to disable the circuit. Cooper Bussmann circuit breakers feature our patented fail-safe technology - offering an innovative element design which combines the resetable performance of circuit breakers with the short-circuit protection of a fuse. Resetable, to work like a normal "cycling" breaker, in low overload conditions. Under severe overload or short-circuit conditions, the breaker's element will open to prevent damage to the circuit.
Specifications:
Single Pole Thermal Type Breakers
Ratings: 25A to 150A; 30 VDC, 3000 Amp Interrupt Capacity.
Operating Temperature: –25°F (–32°C) to 180°F (82°C).
Storage Temperature: –30°F (–34°C) to 300°F (149°C).
Applications: Typically used in auxiliary and accessory circuits -- trucks, buses, RV’s and marine applications. Others might include battery chargers and DC audio systems.
Series 181, 184 & 185 are sealed for engine compartment and bilge area applications.
Housing: Thermoset plastic; UL rated 94VO; 311°F (155°C). Stud insulators are provided on covered units with F (Surface Mount) bases.
Mounting: Panel or surface.
Indicator: Series 184 & 185 have a unique reset mechanism which provides visible indication of tripped condition.
Approvals: Complies with SAEJ1625

CB187P-50 marine (this is the marine version. waytekwire.com #46890)
Specifically designed to meet the needs of marine applications, the CB187F and CB187P offer 5kA interrupting ratings and ignition protection per ABYC E-11. Usable as an ON/OFF switch (capable of withstanding 3000 on/off cycles @48Vdc), they have corrosion resistant plating on 5/16-18 copper terminals.
Specifications:
Single Pole Thermal Type Breakers
Applications: Typically used in DC power systems in marine applications (as a main or
branch circuit breaker), truck and bus systems, RV systems, add-on protection for
accessories, lift gates, etc. This unit is external ignition protected and weatherproof.
Specifications
Rating: 25-200A, 48Vdc
Interrupt Rating: Main Breaker Protection Interrupt Rating (5,000A@ 14Vdc, 3,000A@ 28Vdc and 1,500A@ 48Vdc).
Operating Temperature Rating: –40°F (–40°C) to 185°F (85°C)
Storage Temperature Rating: –40°F (–40°C) to 260°F (125°C)
Materials: Black UL-rated 94V0 thermoset plastic body. Cover and lever are UL-rated 94V0 thermoplastic
Termination: 5/16-18 threaded studs
Ingress Protection Rating: IP66
Features / Options: A manual reset circuit breaker with On-Off switch capability
Compliances: ABYC E-11; CE; SAE J1171 (ignition protected)

Yes the circuit breaker is about 3 inches from the battery so when it is off everything in the trailer is off. The forth picture shows the cable from the battery positive post to the circuit breaker. Q 7 Retired had asked a very good question “Circuit breakers are typically rated for many fewer on/ off cycles than switches -- do you anticipate a problem?” He is correct because some circuit breakers are not certified to be used as switches, so I sent the products specification that show the circuit breaker is rated as a switch. Switching DC voltage on/off is hard on a switch; depending on what the load is because they may arc, which will eat away the switch contacts. A high amp DC circuit breaker can only handle so many on/off cycles at the rated load of 50 amps. Before I turn off the circuit breaker I make sure all the DC loads are off, the only thing I can’t turn off is the gas detector. The gas detector gets turned off when I turn off the breaker. The gas detector draws 90 milliamps (.090 amps) so when the circuit breaker switches the gas detector off it’s a very low current draw and so the breaker will last for a very long time.