Allen-Bradley · PowerFlex 525
Allen-Bradley 25B-D037N104 / 25B-D043N114 PowerFlex 525 Drives
Frame E PowerFlex 525 drives for higher 480 V output ratings, including the corrected filtered catalog number.
System Overview
Allen-Bradley 25B-D037N104 and 25B-D043N114 are PowerFlex 525 Frame E AC drives for 380 to 480 V three-phase input and 0 to 460 V three-phase output. They are larger members of the 480 V PowerFlex 525 range and have distinct electrical and filter suffixes.
25B-D037N104 is the 18.5 kW / 25 HP normal-duty and heavy-duty model, with 37.0 A output current. Its N104 suffix denotes the no-integral-EMC-filter configuration. 25B-D043N114 is the corrected official catalog number for the second model: it is 22.0 kW / 30 HP normal duty, 18.5 kW / 25 HP heavy duty and 43.0 A output current.
The N114 suffix on 25B-D043N114 identifies the filtered configuration. Rockwell's PowerFlex 520-series technical data states that non-filtered drives are not available for the 380 to 480 V 25 HP and 30 HP ratings; this filter boundary is a direct reason to retain the exact suffix rather than shorten the model number.
Both drives use Frame E reference dimensions of 185 by 300 by 279 mm, with 160 mm and 280 mm additional references and 12.9 kg approximate weight. The PowerFlex 525 architecture includes embedded EtherNet/IP and integral RS485/DSI communications, while the exact rating and suffix remain model-specific.
Configuration Reference
| Technical item | 25B-D037N104 | 25B-D043N114 |
|---|---|---|
| Brand | Allen-Bradley | |
| Product family | PowerFlex 525 AC drive | |
| Input / output | 380 to 480 V AC three-phase / 0 to 460 V three-phase | |
| Normal-duty rating | 18.5 kW / 25 HP | 22 kW / 30 HP |
| Heavy-duty rating | 18.5 kW / 25 HP | |
| Output current | 37.0 A | 43.0 A |
| Input voltage range | 323 to 528 V AC | |
| Total watts loss | 602 W | 697 W |
| EMC filter | No integral EMC filter (N104) | Filtered configuration (N114) |
| Frame | Frame E | |
| Embedded communications | EtherNet/IP and integral RS485/DSI | |
| Dimensions | 185 x 300 x 279 mm reference dimensions | |
| Weight | 12.9 kg (28.4 lb) | |
Filter suffix at 25 HP and 30 HP
Catalog correction and boundary
Filter suffix at 25 HP and 30 HP
25B-D037N104 is the 25 HP no-integral-filter catalog number. 25B-D043N114 is the verified 30 HP filtered catalog number. The full suffix is essential because the two catalog numbers use different filter configurations.
The technical data specifically notes that non-filtered drives are not available for 380 to 480 V 25 HP and 30 HP ratings. The N104 and N114 suffix difference therefore carries a real hardware boundary.
- D037: 25 HP N104
- D043: 30 HP N114
- Exact suffix required
Frame E current and duty envelope
Rating and mechanics
Frame E current and duty envelope
25B-D037N104 is 37.0 A at 18.5 kW / 25 HP for both duty categories. 25B-D043N114 is 43.0 A, with 22.0 kW / 30 HP normal duty and 18.5 kW / 25 HP heavy duty.
Frame E dimensions are 185 by 300 by 279 mm, with 12.9 kg approximate weight. The official diagram is retained as the technical dimensional reference.
- 37 A / 43 A output
- Frame E
- Official PowerFlex geometry
Frequently Asked Questions
At the 25 HP and 30 HP range, why must the full 43 A catalog suffix be retained instead of shortened during an order check (25B-D037N104 / 25B-D043N114)?
The published configuration confirms that 25B-D037N104 is the 25 HP N104 no-integral-filter model, whereas 25B-D043N114 is the verified 30 HP N114 filtered model.
A project calls for a filtered 30 HP drive; which filter boundary separates the two listed high-power entries (25B-D037N104 / 25B-D043N114)?
For a replacement decision, the listed data shows that 25B-D037N104 is the no-integral-filter configuration, while 25B-D043N114 is the filtered configuration required for the listed 30 HP entry.
When a load has intermittent overload, which normal-duty and heavy-duty ratings must be compared before selecting the drive (25B-D037N104 / 25B-D043N114)?
The installation check is resolved by the fact that 25B-D037N104 is 18.5 kW / 25 HP for normal and heavy duty, while 25B-D043N114 is 22 kW / 30 HP normal duty and 18.5 kW / 25 HP heavy duty.
A motor current review has two close higher-power options; which published amp values resolve the choice (25B-D037N104 / 25B-D043N114)?
In the official technical record, 25B-D037N104 has 37.0 A output current and 25B-D043N114 has 43.0 A output current.
A cabinet drawing uses a Frame E footprint; which dimensions and approximate weight must be reserved before installation (25B-D037N104 / 25B-D043N114)?
The relevant hardware boundary is that 25B-D037N104 and 25B-D043N114 use Frame E reference dimensions of 185 x 300 x 279 mm and an approximate 12.9 kg frame weight.
When the drive must exchange data with both an EtherNet/IP network and a serial device, what PowerFlex 525 communications context applies (25B-D037N104 / 25B-D043N114)?
For engineering selection, the documented result is that 25B-D037N104 and 25B-D043N114 belong to the PowerFlex 525 platform with embedded EtherNet/IP and integral RS485/DSI communications.
Moore Automation
Moore Automation
Component request handling
A complete item reference makes it easier to distinguish neighboring versions in an industrial automation request. Moore Automation uses that supplied detail as the basis for its response.
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