MCG BMC12H-INV Brushless Servo Amplifiers B25A40ACH-MC1, B25A40ACL-MC1, B25A40ACK-MC2

Name: MCG BMC12H-INV Brushless Servo Amplifiers B25A40ACH-MC1, B25A40ACL-MC1, B25A40ACK-MC2
Brand: Mcg

Model: B25A40ACH-MC1 BMC12H-INV B25A40ACL-MC1 BMC12H-INV B25A40ACK-MC2

Brand Mcg

Series INV Brushless Servo

Model B25A40ACH-MC1 BMC12H-INV B25A40ACL-MC1 BMC12H-INV B25A40ACK-MC2

RFQ-ready model route Obsolete and surplus sourcing Export follow-up by model list

Product Overview

Commercial availability is handled through direct RFQ, model verification and export-oriented follow-up rather than public cart checkout.

Submit RFQ Email This Model

Datasheet Preview

Use attached product manuals when available. If the manual is not public yet, request the full file directly through RFQ.

Request Full Manual

Commercial Path

Use This Page To Confirm The Model, Then Move To RFQ

Product pages on DRIVEKNMS are designed to verify model, brand and series first, then move the buyer into one clean quotation path.

Technical Dossier

Product Details And Specifications

MCG BMC12H-INV Series Technical Notes

The Evolution of BMC12H-INV Architecture

The BMC12H-INV platform was developed during the late 1980s through the 1990s as a response to industrial demand for compact, rack-mountable brushless servo drives capable of replacing legacy DC brush amplifiers without full mechanical redesign. Early variants in the BMC series used analog command interfaces (±10 V differential) and relied on resolver feedback exclusively. The MC1 sub-designation (e.g., B25A40ACH-MC1, B25A40ACL-MC1) introduced enhanced current-loop bandwidth and improved thermal management over the base MC revision, extending continuous duty ratings in high-ambient enclosures. The MC2 sub-designation (B25A40ACK-MC2) further refined the PWM switching frequency and EMI filtering to comply with evolving CE and UL industrial standards.

The naming convention decodes as follows: B = Brushless amplifier family | 25 = 25A peak current rating | A40 = 40 VDC bus voltage class | AC = AC input rectification | H/L/K = hardware revision suffix | MC1/MC2 = mechanical/control board revision level | BMC12H-INV = base chassis/inverter module designation. Compatibility between MC1 and MC2 control boards and the BMC12H-INV chassis is revision-dependent; cross-substitution requires verification of firmware and feedback interface matching.

As the BMC12H-INV series has entered the obsolescence phase, MCG no longer manufactures new units. OEM replacement pathways include the Regal Beloit Unidrive M series and select Kollmorgen AKD drives, but mechanical and electrical retrofit costs are significant. For facilities committed to maintaining existing machinery, sourcing tested surplus and refurbished BMC12H-INV units remains the most cost-effective lifecycle extension strategy.

BMC12H-INV Full Catalog & Functionalities (SKU List)

The following SKUs represent verified models within the MCG BMC12H-INV brushless servo amplifier family, organized by control revision and current class:

Inverter Chassis / Base Amplifier Modules

B25A40ACH-MC1: 25A peak, 40V bus, AC input, H-revision, MC1 control board, resolver feedback
B25A40ACL-MC1: 25A peak, 40V bus, AC input, L-revision, MC1 control board, low-inductance motor optimized
B25A40ACK-MC2: 25A peak, 40V bus, AC input, K-revision, MC2 control board, enhanced EMI filter
B12A40ACH-MC1: 12A peak, 40V bus, AC input, H-revision, MC1 control board, standard resolver interface
B12A40ACL-MC1: 12A peak, 40V bus, AC input, L-revision, MC1 control board, compact form factor
B12A40ACK-MC2: 12A peak, 40V bus, AC input, K-revision, MC2 control board, updated PWM topology
B50A40ACH-MC1: 50A peak, 40V bus, AC input, H-revision, MC1 control board, high-torque servo applications
B50A40ACK-MC2: 50A peak, 40V bus, AC input, K-revision, MC2 control board, improved thermal dissipation
B25A80ACH-MC1: 25A peak, 80V bus, AC input, H-revision, MC1 control board, higher voltage servo systems
B25A80ACL-MC1: 25A peak, 80V bus, AC input, L-revision, MC1 control board, 80V bus low-inductance variant
B25A80ACK-MC2: 25A peak, 80V bus, AC input, K-revision, MC2 control board, CE-compliant 80V class
B12A80ACH-MC1: 12A peak, 80V bus, AC input, H-revision, MC1 control board, resolver feedback standard
B50A80ACK-MC2: 50A peak, 80V bus, AC input, K-revision, MC2 control board, high-power 80V platform
BMC12H-INV: Base inverter chassis module, accepts MC1/MC2 control boards, field-replaceable design
BMC12H-INV/PS: Inverter chassis with integrated power supply section, single-enclosure configuration
BMC12H-CB: Replacement control board assembly for BMC12H-INV chassis, MC1-compatible
BMC12H-CB-MC2: Replacement control board assembly for BMC12H-INV chassis, MC2-compatible

Continue The Model Path

Use system, brand and series routes to compare related published models.

Move from this exact model into the matching system hub, brand archive, model-family archive or lifecycle sourcing route before sending a final RFQ list.