Danfoss VLT Drive Decoder
Type a Danfoss VLT FC type code (FC-302P15KT5..., FC-051PK75T4IP20H3..., FC-202P1K1S2...) and read the motor kW/HP, captured output currents, voltage class, and frame size straight from the Danfoss design-guide tables. FC 102 current coverage is incomplete and flagged in the result. Built around the real traps: the power code is a kW key, not a current; the T5 380-500 V class carries distinct ND and HD currents; and an impossible power/voltage combination is rejected, not invented.
A reference decoder for Danfoss VLT FC drive type codes across five families: FC 301 and FC 302 (VLT AutomationDrive, which share one electrical rating table), FC 102 (VLT HVAC Drive), FC 202 (VLT AQUA Drive), and FC 51 (VLT Micro Drive). Enter the long type code off the nameplate and the app reads the series digits to pick the family, walks the positional grammar field by field (product group, power code, phase, mains-voltage class, enclosure, RFI filter, brake, display, coating, and the A/B/C/D option slots), then looks up the matched ratings row by family + voltage class + power code. It returns the motor kW and the published HP equivalent, the captured Normal-Duty and High-Duty rated output currents, the voltage class (T2 200-240 V, T4 380-480 V, T5 380-500 V, T6 525-600 V, T7 525-690 V three-phase, plus the S2/S4 single-phase classes), and the frame/enclosure size. The FC 102 HVAC family resolves kW/HP and frame, but its High-Duty current is not captured and its Normal-Duty current coverage is incomplete; those gaps are flagged instead of filled with placeholders. The power-rating code is treated as an opaque kW lookup key (PK75 = 0.75 kW, P11K = 11 kW, the K is the decimal point), never parsed as a current. When a power code does not exist at the entered voltage class, or a required position carries an undocumented token, the decoder says so and suggests the nearest cataloged drive rather than guessing a rating.
Read the Danfoss VLT Drive Guide for the families, the real traps, and what the decoder will not do
Danfoss VLT Drive Guide →Decode the motor nameplate the drive runs
Motor Nameplate Decoder →Cross-shop the equivalent Allen-Bradley PowerFlex drive
PowerFlex Drive Decoder →Cross-shop the equivalent Yaskawa drive
Yaskawa Drive Decoder →How It Works
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Type the full type code
Enter the long type code off the drive nameplate (the T/C type code, not the catalog/ordering number). It starts with FC, then the series 301/302/102/202/051, then the power code, phase, voltage class, enclosure, and options. Dashes and lowercase are tolerated. Examples: FC-302P15KT5E20H1BGCXXXSXXXXA0BXCXXXXD0 or FC-051PK75T4IP20H3BXCXXSXXX (the FC 51 is a shorter code).
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Read the type-code breakdown strip
The decoder splits the string into labeled segments: product group (FC), series, power code, phase, mains voltage, enclosure, RFI filter, brake, display, coating, and the option slots. Each cell shows the raw token and its decoded meaning, with the same physical field matched by token order, not by absolute character index.
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Read the motor rating and currents
The Ratings card shows the motor kW with the published HP equivalent, the Normal-Duty rated output current, the High-Duty rated output current (or 'not captured' where the source did not publish it for that family), the frame/enclosure size, and the resolved voltage class. The power code maps to these values; it is not itself a current.
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Check the duty note
The 'What this means for the job' layer tells you whether to size on Normal Duty or High Duty for your load torque, the supply phase and voltage the drive needs, and the enclosure note. On the FC 301/302 T5 class the ND and HD currents are distinct, so the panel surfaces both.
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Watch for the invalid verdict
If the power code does not exist at the entered voltage class (for example P75K at T2), or a required position carries an undocumented token, the decoder shows a 'Not a cataloged drive' verdict with the reason and the nearest cataloged drive in the same family and class, instead of fabricating a rating.
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Export the decode
PDF export produces a branded report with the type-code breakdown, the decoded ratings, the duty and field notes, and the source citation. CSV and share carry the same decoded context for documentation, not for ordering authorization.
Built For
- An electrician decoding FC-302P15KT5E20H1BGCXXXSXXXXA0BXCXXXXD0 off a nameplate to confirm it is a 15 kW / 20 HP drive at 380-500 V with 27 A ND / 43.2 A HD before sizing the motor leads
- A controls tech telling an FC 301 from an FC 302 on a replacement: the kW and current are identical, so the choice is the control feature set (advanced motion, synchronizing, positioning)
- A pump technician verifying that an FC-202 AQUA single-phase S2 drive is read off the single-phase table, not the three-phase column at the same kW
- A maintenance planner decoding an FC 51 Micro Drive short type code (FC-051PK75T4IP20H3...) and confirming the shorter string is normal, not truncated
- An estimator catching that a Danfoss power code like P30K can map to 22 kW in the FC 202 High-Overload column rather than a literal 30 kW
- A field engineer confirming that a power code entered at the wrong voltage class (P75K at 240 V T2) is flagged as not cataloged with a nearest-drive suggestion
- A panel builder reading the enclosure and RFI-filter positions to confirm the IP20 versus higher-IP and H1/H3 EMC-filter configuration of the ordered drive
- An HVAC tech decoding an FC 102 to get the kW/HP and frame, while being told the High-Duty current is not captured for that family so it must be pulled from the FC 102 design guide
Features & Capabilities
Five Families, One Grammar
Decodes FC 301 and FC 302 (VLT AutomationDrive, sharing one ratings table), FC 102 (VLT HVAC), FC 202 (VLT AQUA), and FC 51 (VLT Micro Drive). The series digits at positions 301/302/102/202/051 pick the family; the FC 301 and FC 302 resolve the same electrical row but are named distinctly.
Power Code Read as kW, Not Current
The power-rating field is decoded as an opaque kW lookup key (PK75 = 0.75 kW, P11K = 11 kW, the K is the decimal point), never parsed as a current. The Normal-Duty and High-Duty output currents come from the matched design-guide row, not from the digits.
Distinct Normal-Duty and High-Duty Currents
Where Danfoss publishes two output currents, both are surfaced. On the FC 301/302 T5 380-500 V class the ND and HD values genuinely differ at the same kW (P15K T5 is 27 A ND / 43.2 A HD), and the decoder shows both rather than collapsing them to one number.
Voltage Class Resolved Correctly
Resolves T2 (200-240 V), T4 (380-480 V), T5 (380-500 V, FC 301/302 only), T6 (525-600 V) and T7 (525-690 V) three-phase classes, plus the single-phase S2 (1x200-240 V) and S4 (1x380-480 V) classes. The FC 202 single- and three-phase tables are keyed separately so a single-phase drive is never read off the three-phase column.
Impossible Combinations Rejected
If a power code is not cataloged at the entered voltage class (P75K at T2), or the power token is not a recognized code at all, the decoder returns a 'Not a cataloged drive' verdict with the reason and the nearest real neighbour, instead of inventing a current or kW.
Hard-Validates Required Positions
An undocumented token at a required position (phase, enclosure) is treated as a structural violation that fails the verdict, even if a ratings row could otherwise be reached off the shifted characters, so a malformed ordering string is not handed back as valid.
FC 51 Short-Code Aware
The Micro Drive FC 51 type code is shorter: no separate phase character (the 2-character class S2/T2/T4 carries the phase), a fixed IP20 enclosure, and a fixed H3 RFI filter. The decoder expects the short form and does not flag it as truncated.
PDF and CSV Export, Light and Dark Mode
PDF export uses the shared ToolGrit report generator and includes the type-code breakdown, the decoded ratings, duty and field notes, warnings, and the per-family source citation. Standard ToolGrit light/dark theme; the decode and ratings update in aria-live regions when the type code changes.
Comparison
| Family | Series | Drive | Voltage classes | Output currents decoded |
|---|---|---|---|---|
| FC 301 | 301 | VLT AutomationDrive (standard) | T2 / T4 / T5 / T6 / T7 | Normal-Duty and High-Duty (shares the FC 302 table) |
| FC 302 | 302 | VLT AutomationDrive (advanced motion) | T2 / T4 / T5 / T6 / T7 | Normal-Duty and High-Duty; T5 carries distinct ND and HD |
| FC 102 | 102 | VLT HVAC Drive | T2 / T4 / T6 / T7 | kW/HP and frame; High-Duty not captured, Normal-Duty partial |
| FC 202 | 202 | VLT AQUA Drive | S2 / S4 (single-phase) + T2 / T4 / T6 / T7 | Normal-Duty and High-Duty; single- and three-phase keyed separately |
| FC 51 | 051 | VLT Micro Drive | S2 / T2 / T4 | Normal-Duty and High-Duty; short type code, fixed IP20 / H3 |
References
- Danfoss VLT AutomationDrive FC 301 / FC 302 Design Guide (AJ286655760917en-002201) - type code and power-ratings tables (Tables 28-41)
- Danfoss VLT HVAC Drive FC 102 Design Guide (AJ299549559248en-002001) - type code; Normal-Duty currents from Tables 5, 163-164 (High-Duty not captured)
- Danfoss VLT AQUA Drive FC 202 Design Guide - type code and single- and three-phase power-ratings tables
- Danfoss VLT Micro Drive FC 51 Design Guide (AJ361178983102en-000401) - type code and power-ratings tables