Breaker Decoders

Enter a catalog or edge-stamped number to instantly decode frame size, ampere rating, trip unit, mounting, and accessories.

Built for engineers, plant and facility managers, electricians and field-service technicians identifying obsolete or end-of-life gear during an outage or a planned shutdown.

Eaton / Cutler-Hammer

6 tools

Magnum DS (MDS) / SBS Decoder

Decode Magnum DS (MDS) and SBS-series catalog numbers. Identifies frame, rating, interrupting capacity, trip unit type, and mounting.

Frames: Magnum DS (MDS) · SBSRatings: 800A – 6,000A

Magnum MW (IEC) Decoder

Decode IEC 60947-2 Magnum MW catalog numbers. Supports 49 ampere ratings with fixed/draw-out mounting and motorized/manual operation.

Frames: Magnum MW (IEC)Ratings: 800A – 6,300A

Magnum PXR / Power Defense SB Decoder

Decode 25-character Magnum PXR and 15-character Power Defense SB catalog numbers. Identifies frame size, ampere rating, trip unit, and accessories.

Frames: Magnum DS (PXR) · Power Defense SBRatings: 800A – 6,000A

RD (R-Frame) Decoder

Decode RD-series R-Frame catalog numbers including factory-installed accessories. Parses post-W accessory groups (S/U/T/A/B/Q/N).

Frames: RD / R-FrameRatings: 400A – 2,000A

SPB

Availability & Quote

Looking for an Eaton SPB (Systems Pow-R)? Get SPB availability and a quote — our team identifies your SPB-50 / 65 / 100 and sources the new-surplus or reconditioned replacement.

Frames: SPB 50 / SPB 65 / SPB 100Ratings: 800A – 4,000A

VCP-W Decoder

Identify an Eaton / Cutler-Hammer VCP-W medium-voltage vacuum circuit breaker from its type designation or its 10-digit style number. Returns the full ANSI or IEC rated-values set, breaker weight, published control voltage and the interrupter assembly part number.

Frames: VCP-W · WND · WC / WXC · WSE (ANSI + IEC)Ratings: 4.76 kV – 27 kV · 630A – 3000A

Square D / Schneider Electric

2 tools

MasterPact NT / NW Decoder

Decode Square D / Schneider MasterPact NT and NW catalog numbers. Identifies frame construction (T/W/Y), ampere rating, interrupting class, device type, sensor plugs, and Micrologic trip unit.

Frames: NT (T-frame) · NW (W / Y-frame)Ratings: 800A – 6,300A

Type VR Decoder

Coming Soon

In development — a decoder for Square D Type VR medium-voltage vacuum circuit breakers, the drawout breaker in Masterclad metal-clad switchgear. Reads the nameplate catalog number (V5D…) or the VR rating number and returns the full ANSI rated-values set, with close and trip control voltages.

Frames: Type VR · VAD-3 · Class 6055 MastercladRatings: 4.76 kV – 27 kV · 1200A – 4000A

General Electric

1 tool

WavePro Decoder

Decode GE WavePro low-voltage power air circuit breaker catalog numbers. Identifies equipment usage, interrupting/fuse rating, frame & sensor, MVT / Power+ trip unit, trip function, rating plug, operation voltages, and mounted accessories.

Frames: WavePro (AKD-10 / PowerBreak II)Ratings: 800A – 5,000A

Siemens

1 tool

WL (Sentron WL) Decoder

Decode Siemens WL (Sentron WL) catalog numbers under both UL 489 and UL 1066 / ANSI C37. Identifies interrupting class, frame size, mounting, poles, ampere rating, rating plug, ETU745 / ETU776 trip unit, and every factory accessory digit.

Frames: Frame Size 1 / 2 / 3 (UL 489 · UL 1066)Ratings: 800A – 6,000A

Looking for a Type RL/VRL? It’s listed under Voyten Electric

Voyten Electric

1 tool

RL Decoder

Decode Voyten Type RL/VRL 600V Low Voltage Power Circuit Breaker catalog numbers. Identifies connection, interrupting type, frame, sensors, system wiring, trip unit, and optional devices.

Frames: RL / RLE / RLI / RLFRatings: 800A – 5,000A

Working somewhere without a signal?

Every decoder above also runs offline from a local folder — decoding, the position map, copy and PDF export all work with no connection.

Open the Offline Kit

About these results

The decoders read published manufacturer catalog-number conventions and return the most likely configuration. They are an identification aid, not a specification: numbers get reused and revised, nameplates get mis-stamped, and some factory-fitted options never appear in a type designation at all. Confirm any result against the breaker's own nameplate and the manufacturer's documentation before ordering a part, fitting a replacement, or relying on a rating.

Power circuit breakers are hazardous equipment. Installation, testing and maintenance are work for qualified personnel following NFPA 70E and the equipment manufacturer's instructions. These tools are provided as is, without warranty of any kind, and Voyten Electric & Electronics, Inc. accepts no liability for loss, damage or injury arising from reliance on decoded output.

Need help identifying a breaker?

If you can't decode your model number with these tools, our team can help. Send us the catalog number or nameplate photo and we'll identify it for you.

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