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Home / Lighting / Driving & light bars

Grey Anderson SB50 connector housing at an angle with two silver contacts laid beside it, the Anderson Power Products name moulded into the top face and the plus and minus polarity marks on the body

Elevate Automotive

Anderson Plug Grey — SB50, SB120 or SB175

SB50

Grey Anderson-style plug with silver-plated copper contacts. Choose SB50, SB120 or SB175 for the matching cable and current rating.

SB50: 50A / 8mm²
SB120: 120A / 25mm²
SB175: 175A / 35mm²

$9.50

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Universal fitmentAnderson SB-pattern plug for high-current DC connections

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A grey Anderson-style plug and matching contacts in SB50, SB120 or SB175 sizes, for high-current DC connections between a vehicle and a trailer, a solar array and a battery, an inlet and a portable power station, or two banks in a dual-battery setup. Grey is the standard mating colour used on most caravan trailer plugs, 4WD dual-battery inlets and portable power gear across Australia. Fits caravan supply lines, 4WD dual-battery leads, camper solar runs and forklift or industrial DC circuits.

Housings are Anderson SB-pattern high-impact polycarbonate; each colour is a mechanical key so grey mates only with grey. Contacts are silver-plated copper stampings sized to the housing. SB50 carries 50A continuous and takes 8mm² cable, SB120 carries 120A and takes 25mm², SB175 carries 175A and takes 35mm². All variants rate to 600V DC and work from -20°C to +105°C.

Crimp each contact with the Anderson crimp tool sized to the housing; open-barrel automotive crimpers will not close the barrel correctly and the joint fails under load. SB50, SB120, SB175 and SB350 do not mate across sizes; a SB50 will not connect to a SB120. Fuse the cable feed at the source for the cable size behind the plug, not at the plug itself.

  • 3 sizes — SB50, SB120 or SB175
  • 50 to 175A — pick the size for the cable and load
  • Grey standard — mates any grey SB of same size
  • Silver contacts — silver-plated copper stampings
  • 600V DC rating — covers all common DC vehicle voltages
  • Genderless — one plug mates with itself

Electrical

SB50 rating 50A continuous

SB120 rating 120A continuous

SB175 rating 175A continuous

Voltage rating 600V DC

Contacts Silver-plated copper

Physical

Colour Grey (mates grey)

Housing Polycarbonate

Operating temp -20 to +105°C

Anderson SB-pattern plug for high-current DC connections
12V, 24V, 36V and 48V DC systems (up to 600V DC rating)
SB50: 50A / 8mm² cable
SB120: 120A / 25mm² cable
SB175: 175A / 35mm² cable
SB sizes do not mate across sizes (SB50 will not fit SB120 etc)

Q: Can different SB sizes connect together?
No. Each SB size (SB50, SB120, SB175, SB350) has its own mating profile. Only same-size connectors will interlock. A SB50 will not fit into a SB120 or SB175.

Q: Which SB size do I need?
Match the size to the cable and the sustained current. SB50 for 8mm² cable at up to 50A (fridge feeds, portable power, standard caravan trailer plugs). SB120 for 25mm² cable at up to 120A (dual-battery inputs, larger DC-DC feeds). SB175 for 35mm² cable at up to 175A (winch mains, large-capacity house-battery feeds). SB350 for 70mm² cable at up to 350A (industrial and forklift).

Q: Why grey?
Grey is the standard Anderson SB colour used on most caravan trailer plugs, 4WD dual-battery inlets and portable power gear in Australia. It is a mechanical key so grey mates only with other grey; the colour has no electrical effect.

Q: Are the contacts included?
Yes. Each connector ships with the correct pair of silver-plated copper contacts sized to the housing.

Q: Do I need a special crimp tool?
An Anderson crimp tool sized to the SB housing. Open-barrel automotive crimpers do not close the SB contact barrel correctly and the crimp fails under high current or vibration.

Q: What is the voltage limit?
600V DC insulation rating on all sizes. All common DC vehicle systems (12V, 24V, 36V, 48V) sit well inside the envelope. The current rating is the real-world constraint, not the voltage.

Q: Do these mate with genuine Anderson SB?
Same SB-pattern housings, same contact geometry, and physically interchangeable with genuine Anderson Power Products SB50, SB120 or SB175. Grey mates grey, whichever brand made either half.

Q: How many plugs do I need per cable?
One plug per end. A cable between a vehicle Anderson inlet and a caravan Anderson socket needs one grey SB50 at each end, so order two of the same size.

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