Home / B&R / ACOPOSinverter P77 - 3-phase 340 to 528 V / B&R 8I77T401850.0P-000 – ACOPOSinverter P77, 3x 340-528 V; 18.5 kW (heavy duty)

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B&R 8I77T401850.0P-000 – ACOPOSinverter P77, 3x 340-528 V; 18.5 kW (heavy duty)

Name: B&R 8I77T401850.0P-000 – ACOPOSinverter P77, 3x 340-528 V; 18.5 kW (heavy duty)
Brand: B&R
SKU: 8I77T401850.0P-000

MPN: 8I77T401850.0P-000 · Brand: B&R

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12-month warranty (new) · 3-month (used/refurbished)

30-day returns, no restocking fee on unused parts

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Quick facts

Availability	Confirmed on request
Category	ACOPOSinverter P77 - 3-phase 340 to 528 V
Lifecycle	Active
Warranty	12-month (new) · 3-month (used/refurbished)
Weight	8 kg

Shipping & availability

When can 8I77T401850.0P-000 be shipped?

8I77T401850.0P-000 is sourced on request — request a quote and we'll confirm the exact availability and shipping timeline for this specific unit.

Can I pick up 8I77T401850.0P-000 in person?

Local pickup from our Groningen, Netherlands warehouse may be possible — contact us before ordering to check availability and arrange a collection time.

Is express delivery available?

Yes — mention it when you request a quote for 8I77T401850.0P-000 and we'll include express shipping options in our reply.

My factory is down and I need this urgently — can you help?

For a critical breakdown, contact us directly at +31 (0)50-7110348 or sales@partnerplc.com — we can look into same-day courier or dedicated taxi/hotshot delivery for 8I77T401850.0P-000, subject to availability and destination.

ACOPOSinverter P77, 3x 340-528 V; 18.5 kW (heavy duty), 34 A (@8 kHz), integrated brake chopper, HTL encoder input onboard, 2-channel STO (SIL 3, PL e), POWERLINK hub with 2x RJ45, physical node number switches, shield plate included in delivery

Accessories

Optional accessories (10)

8I0BR015.800-1	Braking resistors — ACPi P77 braking resistor 15 Ω 800 W
8I0BR015.6K2-1	Braking resistors — ACPi P77 braking resistor 15 Ω 6.2 kW
8I0BR015.2K4-1	Braking resistors — ACPi P77 braking resistor 15 Ω 2.4 kW
8I0XD070.402-1	Front covers — ACPi USB module - Blue "Standard line" (VPE 1) - Compatible with ACOPOSinverter P77
8I0XD070.400-1	Front covers — ACPi service display - Black "Standard line" (VPE 1) - Compatible with ACOPOSinverter P77
8I0FT069.57L-1	Input filters — ACPi long distance filter 3-ph 69 A
8I0FT043.57S-1	Input filters — ACPi short distance filter 3-ph 43 A
8I0CT045.570-1	Line choke — ACPi mains choke 3-ph 45 A
8I0CT040.570-1	Line choke — ACPi mains choke 3-ph 40 A
8I0CT030.570-1	Line choke — ACPi mains choke 3-ph 30 A

Specifications

General information

Certifications – CE	Yes
Certifications – UKCA	Yes
Certifications – UL	cULus E225616; Power conversion equipment

Motor power

Specified on nameplate

18.5 kW (25 PS)

Mains connection

Mains current – At 400 VAC	40.3 A
Mains current – At 480 VAC	40.3 A
Mains input voltage	3x 340 VAC -15% to 528 VAC +10%
Frequency	45 to 65 Hz ±5%
Apparent power (at 400 VAC)	27 kVA
Max. assumed short-circuit current (Isc); (short-circuit current at connection point)	65 kA " data-placement="top" data-html="true" data-container="body" data-content="With mains choke max. Isc 65 kA for 340/528 V.">
Power dissipation at nominal load and nominal clock frequency	408 W
Integrated EMC filter	Yes " data-placement="top" data-html="true" data-container="body" data-content="Inverter is provided with an integrated Category C2 EMC filter. This filter can be switched off.">

Line-conducted and radiated emissions

With integrated filter – Motor cable length per IEC/EN 61800-3 ; Cat. C2 environment 1 (public power network)

C2 level of 4 to 16 kHz with 20 m cable

Motor connection

Derating of continuous output current depending on ambient temperature – At nominal clock frequency (4 kHz)	No derating (up to 50°C)
Derating of continuous output current depending on ambient temperature – Other clock frequencies	The derating curves are included in the installation instructions, which can be downloaded from www.br-automation.com.
Derating of continuous output current depending on installation elevation – Starting at 1000 m above sea level	1%, per 100 m
Clock frequency – Min.	2 kHz
Clock frequency – Max.	16 kHz
Max. motor cable length – Shielded cable	100 m
Max. motor cable length – Non-shielded cable	200 m
Motor control profiles – Induction motor	Sensorless vector control: ; 1. Voltage controlled with constant torque → standard mode; Sensorless slip control: ; 1. With V/f characteristic curve for constant torque → Standard mode; 2. With V/f characteristic curve for constant torque (6 f-ranges) → Custom mode for special applications; 3. With V/f characteristic curve for quadratically increasing torque → Energy-saving profile, e.g. for fans and pumps
Motor control profiles – Synchronous motor	Sensorless vector control: ; 1. Voltage controlled with constant torque → standard mode
Nominal output current	34 A " data-placement="top" data-html="true" data-container="body" data-content="These values apply at a nominal clock frequency of 4 kHz during continuous operation. The clock frequency can be set from 2 to 16 kHz. Above 4 kHz, reduce the nominal drive current. The nominal motor current is not permitted to exceed this value.">
Max. transient current for 15 s, 3-phase " data-placement="top" data-html="true" data-container="body" data-content="The inverter is designed for heavy-duty operation for a maximum of 15 seconds at 200% nominal current. For the values for light duty, see the configuration manual.">	318 A
Output frequency range	0.1 to 599 Hz
Nominal clock frequency	4 kHz
Main protective functions of inverter	Thermal protection against power stage overheating; Protection against short circuits between motor phases, overcurrent between output phases and ground, overvoltages on the DC bus, exceeding the speed limit. ; Safety function for: Overvoltage and undervoltage of the mains supply, mains phase failure with 3-phase power supply

Brake chopper

Integrated dynamic brake transistors	Yes
Min. resistance value (external)	15 Ω
Max. output current	48 A

24 VDC power supply

Input voltage	24 VDC (-15%/+20%)
Current	Max. 1.1 A

Available internal power supplies

Output voltage 24 VDC – Max. output current at 24 VDC	100 mA
Output voltage 10 VDC – Max. output current at 10 VDC	10 mA
Output voltage 24 VDC	24 VDC (-15%/+20%)
Output voltage 10 VDC	10 VDC (-0%/+10%)

Interfaces

POWERLINK – Type

Type 3 " data-placement="top" data-html="true" data-container="body" data-content="For additional information, see section "Communication / POWERLINK / General information / Hardware - CN" in Automation Help.">

Digital inputs

Quantity	5
Nominal voltage	24 VDC (max. 30 VDC)
Input circuit	Source or sink
Sampling time	8 ms ±0.7 ms

Safe input - STO (Safe Torque Off)

Input impedance – Current consumption	16 mA
Electrical isolation – Input - ACOPOSinverter	Yes
Quantity	2
Nominal voltage	24 VDC (max. 30 VDC)
Input impedance	1.5 kΩ

Analog inputs

Electrical isolation – Input - Input	No
Electrical isolation – Input - ACOPOSinverter	Yes
Input – Voltage	AI1: 0 to 10 VDC
Input – Current	0 to 20 mA (or 4 to 20 mA)
Input impedance – Voltage	70 kΩ
Input impedance – Current	<250 Ω
Quantity	2
Basic accuracy	±0.1 mA or 50 mV
Resolution	12-bit
Sampling time	1 ms

Digital outputs

Quantity	1
Nominal voltage	24 VDC -20%/+20%
Max. voltage	30 VDC
Output circuit	Source or sink
Sampling time	1 ms
Max. current	100 mA

Relay outputs

Variant – Relay 1	1 changeover contact
Quantity	1
Nominal voltage	24 VDC / 240 VAC
Switching current range	Min. switching current: 5 mA at 24 VDC; Max. Switching current:; AC 240 V - 3 A; DC 24 V - 2 A; DC 240 V - 0.16 A

Analog outputs

Electrical isolation – Output - ACOPOSinverter	Yes
Electrical isolation – Output - Output	No
Max. load impedance – Voltage	≥2200 Ω
Max. load impedance – Current	≥2200 Ω
Quantity	1
Output	0 to 10 V or 0 to 20 mA
Basic accuracy	±100 mV or ±0.3 m
Resolution	12-bit

Electrical properties

Energy efficiency (IE classification) – Power dissipation relative to continuous apparent power	IE2 (0, 25): 0.8% ; IE2 (0, 50): 1.0% ; IE2 (0, 100): 1.5% ; IE2 (50, 25): 0.8% ; IE2 (50, 50): 1.0% ; IE2 (50, 100): 1.7% ; IE2 (90, 50): 1.1% ; IE2 (90, 100): 1.7%
Energy efficiency (IE classification) – Nominal losses in standby mode	0.0%

Operating conditions

Degree of protection per EN 61800-5-1	IP20
Relative humidity per IEC 60068-2-3	<95%, non-condensing; No dripping water
Maximum installation elevation	≤1000 m without derating; 1000 to 4000 m with Derating " data-placement="top" data-html="true" data-container="body" data-content="Over 1000 m, load reduced by 5% per 1000 m.">
Max. pollution degree per IEC/EN 61800-5-1	2 (non-conductive pollution)
Ambient conditions per IEC 60721-3-3	Class 3C3 and 3S2

Ambient conditions

Temperature – Operation	-10 to 45°C without derating; 45 to 60°C with derating
Temperature – Storage	-25 to 60°C
Max. vibration resistance	Operation at switching frequency 2 or 4 kHz: ; Above +45 °C reduce rated output current by 2.5 %/°C EN 60721-3-3:1995 + A2:1997 ; ; Operation at switching frequency 8 or 16 kHz: ; Above +40 °C reduce rated output current by 2.5 %/°C EN 60721-3-3:1995 + A2:1997

Mechanical properties

Dimensions – Width	180 mm
Dimensions – Height	384 mm
Dimensions – Height without shield plate	342 mm
Dimensions – Depth	165 mm
Weight	8 kg

Downloads & documentation

Official documents from B&R, downloaded directly from the manufacturer.

Data sheets & manuals

ACOPOSinverter P77 User´s Manuel

ZIP · 46 MB · 1.00 (10/09/2025) - EN

CAD & dimension drawings

ACOPOSinverter P77 CAD 2D 3D

ZIP · 3 MB · 1.00 (07/04/2025)

Certificates (2)

Certificate ACOPOSinverter P77 Safety	ZIP · 688 KB · 1.00 (04/08/2025)
E225616 UL Certificate of Compliance ACOPOSinverter_P77	PDF · 499 KB · 1.00 (04/08/2025)

12-month warrantyon all new stock

3-month warrantyon used & refurbished parts

30-day returnsno restocking fee on unused parts

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