300N-18.5GB-T4 VFD — 18.5 kW, Three Phase 380-480V In / Three Phase 0-480V Out

300N-18.5GB-T4 at a glance

The 300N-18.5GB-T4 is a 18.5 kW (25 HP) variable frequency drive for a 380-480 V three-phase supply.
It converts that input into a regulated three-phase 0-480 V output with an output frequency range of 0-500 Hz.

This rating sits in the 300N T4 family, which covers 0.75 kW to 800 kW (34 models) in the same
input/output configuration. This rating is supplied in a iron casing.

Specifications

Full specification — 300N-18.5GB-T4

Enclosure options

This rating is supplied in an iron casing. The electrical ratings are identical to the
plastic-cased ratings of the same configuration; the metal housing is used from this power level upward.

Reading the model number: 300N-18.5GB-T4

Buyers frequently ask what each part of a 300N model code means. This is how
300N-18.5GB-T4 breaks down, following the naming rule in the 300N user manual
(the manual’s own worked example is 300N - 055 G B - T4):

All codes used across the 300N range

The 300N T4 range (0.75 kW – 800 kW)

All 34 ratings below share the same input/output configuration — 3-phase 380-480 v in,
3-phase 0-480 v out, 0-500 Hz. Choose the rating that matches your motor’s rated power.

Typical applications for this rating

At 18.5 kW with 3ph 380-480 v in and 3ph 0-480 v out, this rating is most often specified for equipment
where that supply arrangement is what is available on site:

• Pumps and pressure booster sets
• Fans, blowers and ventilation units
• Water treatment and irrigation pump sets
• Workshop compressors and vacuum pumps
• Conveyors and material-handling lines
• Mixers, agitators and stirrers
• Packaging and filling machinery
• Woodworking and stone-cutting machines

If your motor is rated 18.5 kW (25 HP) and you need speed control, soft starting or protection on a
3ph 380-480 v supply, this is the model to quote.

Compliance and documentation

The electrical ratings on this page follow the nameplate values covered by the conformity
documentation listed below. Copies of the attestation and the corresponding test reports can be
provided with your enquiry for compliance review.

Ordering 300N-18.5GB-T4

To quote accurately, please include the following in your enquiry:

MOQ, lead time, price and payment terms are confirmed at quotation.

Frequently asked questions

Can I run a standard three-phase motor from a 380-480 V supply with this drive?

Yes. The 300N-18.5GB-T4 takes 3PH 380-480 V in and delivers 3PH 0-480 V out at 0-500 Hz, so a standard 18.5 kW three-phase motor can be speed-controlled with soft starting and full protection.

What is the difference between 300N-18.5GB-T4 and 300N-18.5PV-T2?

Both are 18.5 kW (25 HP) with a 37 A rated output current. The 300N-18.5GB-T4 takes 3PH 380-480 V in and gives 3PH 0-480 V out. The 300N-18.5PV-T2 takes 3PH 200-240 V · DC 170-450 V in and gives 3PH 0-240 V out. Choose the T4 if your site only has the supply it needs.

Which enclosure does this rating use?

This rating is supplied in a iron casing. The electrical ratings are the same as the equivalent
rating in the other housing styles; the style for your order is confirmed at quotation.

What is the output frequency range?

0-500 Hz, per the nameplate ratings covered by attestation of conformity No. M.2026.206.C145141.

Is the 300N-18.5GB-T4 CE certified?

Yes — the 300N-18.5GB-T4 is CE certified to the Low Voltage Directive 2014/35/EU and the
Electromagnetic Compatibility Directive 2014/30/EU. Certificates and test reports to
EN IEC 61800-5-1:2023 and EN IEC 61800-3:2023 can be supplied with your quotation.

What is the MOQ and lead time?

Both are confirmed at quotation, because they depend on quantity, enclosure style and destination.
Send us the quantity and destination country and we will come back with MOQ, price and lead time.

Other 18.5 kW configurations

Output frequency range: 0-500 Hz across all 300N configurations — this is the nameplate
value covered by attestation of conformity No. M.2026.206.C145141, and it applies to the S, T and PV
versions alike.

Not the rating you need? The same T4 configuration runs from
0.75 kW up to
800 kW, and the full
300N range covers 118 models from 0.75 kW to 800 kW.