Home Switches & Sockets BM Function Modules

Individual switches, sockets, communication and USB modules

BM Function Modules

BM function modules are the individual components used to build the range of wall controls and outlets. The selection includes rocker switches, bell controls, power sockets, USB outlets, communication connectors and a blanking module.

Select the component before the finished panel BM100 and BM100G are bell-switch modules. Socket modules have different front openings and ratings, while BM125 and BM128 provide one and two visible USB ports. BM111 provides a plain blanking face. Start with the required electrical or communication function, then confirm the module layout, mounting frame and faceplate […]

FINISH

White face

TRADE SIZES

Individual function modules

Catalog No.

BM100–BM159 / L01 / L02; see model table

ADD TO INQUIRY

REQUEST A QUOTE

Need technical details? Download Spec Sheet (PDF, 4 MB)

Select the component before the finished panel

BM100 and BM100G are bell-switch modules. Socket modules have different front openings and ratings, while BM125 and BM128 provide one and two visible USB ports. BM111 provides a plain blanking face.

Start with the required electrical or communication function, then confirm the module layout, mounting frame and faceplate as one assembly. Similar front openings alone do not establish interchangeability. For USB models, request confirmation of the output allocation before specifying simultaneous charging.

Coordinate these components with mounting frames and decorative faceplates. Compare assemblies without faceplates for frame-mounted units.

https://velkor.co/product/bm-decorative-faceplates/

TYPICAL APPLICATIONS

Panel assembly

Module selection

Specifications

FUNCTION MODULES

BM / L modules

BM FUNCTION MODULES

Finish

White face

Click a row to add it to your inquiry.

Model	Configuration	Catalogue rating	Finish
BM100	Bell switch	10A/120-250V	White face
BM101	Rocker switch	10A/120-250V	White face
BM101.3W	Rocker switch (.3W)	10A/120-250V	White face
BM100G	Bell switch, G model	10A/120-250V	White face
BM101G	Rocker switch, G model	10A/120-250V	White face
BM101G.3W	Rocker switch, G model (.3W)	10A/120-250V	White face
BM102	Socket	15A/120-250V	White face
BM102TR	Socket with shutter	15A/120-250V	White face
BM103	Socket	15A/125V	White face
BM107	Socket	16A/250V	White face
BM117	Recessed socket	16A/250V	White face
BM127	Recessed socket	16A/250V	White face
BM112	Socket	10A/250V	White face
BM120	Socket	15A/120-250V	White face
BM153	Arrow-marked control	10A/120-250V	White face
BM104	Two-hole socket; 4mm label	10A/250V	White face
BM105	Two-hole socket; 5mm label	16A/250V	White face
BM111	Blanking module	—	White face
BM151	I/O-marked rocker	16A/120-250V	White face
BM106	Socket	15A/120-250V	White face
BM136	Two-outlet module	15A/120-250V	White face
BM138	Two-outlet module	15A/120-250V	White face
BM137	Two-outlet module	15A/120-250V	White face
BM139	Three-outlet module	15A/120-250V	White face
BM125	Single USB outlet	2.1A/5V	White face
BM128	Two USB outlets	2.1A/5V	White face
BM159	Bell	—	White face
BM126	TV outlet	—	White face
BM109	Telephone outlet	—	White face
BM118	LAN outlet	—	White face
BM108	TV outlet	—	White face
L01	Accessory	110V	—
L02	Accessory	220V	—

Select the complete model reference and finish when adding an item to your inquiry.

CUT SHEET (PDF)

A function module is a component; select the corresponding mounting frame and faceplate separately from the finished-unit models.

Specify the complete model reference and finish in your inquiry.

Modern Standards for Traditional Products

Verified

Product verified against Velkor quality standards before it ships.

PRECISE

Precision in every detail, from engineering drawing to final delivery.

RELIABLE

Stable quality and dependable lead times you can plan a project around.

SYSTEMATIC

A structured process that keeps complex projects consistent and on track.

PARTNER

More than a supplier — we build long-term partnerships with our clients.

BM Series Catalogue

Contact & Inquiry

Let's Make Sourcing Simple.

Send us your specifications, drawings, or project requirements. We’ll help you find the right fit and get things moving. We respond within 8 hours.

Info@velkor.co

China: +86 158-6717-8588

ADDRESS

Puyang Industrial Zone, Hangzhou, Zhejiang, China

NAME COMPANY EMAIL PHONE PRODUCT OF INTEREST MESSAGE

Send Inquiry

Electrical Metallic Tubing

Electrical Metallic Tubing Velkor manufactures Electrical Metallic Tubing (EMT) for commercial, industrial, and residential electrical installations. Every conduit is produced from premium low-carbon steel, delivering smooth bending performance, dimensional consistency, and dependable installation efficiency. Whether you need a cost-effective standard solution or maximum corrosion protection for demanding environments, Velkor offers the right zinc coating option for your project.

EMT Connector – Set Screw Type – Zinc Die Cast

EMT Connector – Set Screw Type – Zinc Die Cast Velkor set-screw EMT connectors are die-cast from virgin zinc alloy rather than lower-grade recycled material. Maintaining a controlled alloy composition helps reduce brittleness and the risk of cracking, giving the fitting greater toughness during installation, handling and transport.

EMT Coupling – Set Screw Type – Zinc Die Cast

EMT Coupling – Set Screw Type – Zinc Die Cast Velkor zinc die-cast set-screw EMT couplings join two lengths of EMT in a straight run. Each conduit end is secured independently by its own set screw, while the one-piece zinc alloy body supports consistent dimensions and straightforward installation.

EMT Connector – Compression Type – Zinc Die Cast

EMT Connector – Compression Type – Zinc Die Cast This zinc die-cast compression connector terminates EMT conduit at an electrical box, cabinet, or enclosure. Its compression nut applies circumferential clamping around the conduit for controlled alignment, while the one-piece zinc alloy body offers dimensional consistency and a clean installation profile.

EMT Coupling – Compression Type – Zinc Die Cast

EMT Coupling – Compression Type – Zinc Die Cast Velkor zinc die-cast compression EMT couplings join two lengths of EMT using independently tightened compression nuts. The compression mechanism grips around each conduit end to support alignment without exposed set screws, while the zinc die-cast body provides a clean, compact profile.

EMT Connector – Set Screw Type – Steel

EMT Connector – Set Screw Type – Steel Designed to connect EMT conduit securely to electrical boxes and enclosures through knockout openings. Manufactured from durable steel with a zinc-plated finish for corrosion protection. The set-screw design allows quick installation and provides a secure connection in dry locations.

View all EMT Conduit System

Grounding Insulated Bushing – Zinc Die Cast

Grounding Insulated Bushing – Zinc Die Cast Velkor Grounding Insulated Bushing – Zinc Die Cast combines an insulated conductor entry with a grounding lug at a threaded conduit end.

Insulated Rigid Conduit Bushing – Zinc Die Cast

Insulated Rigid Conduit Bushing – Zinc Die Cast Velkor Insulated Rigid Conduit Bushing – Zinc Die Cast adds an insulated entry surface at a threaded conduit end.

Rigid Conduit Bushing – Zinc Die Cast

Rigid Conduit Bushing – Zinc Die Cast Velkor Rigid Conduit Bushing – Zinc Die Cast provides a smooth conductor entry at a threaded conduit end.

Rigid Threaded Locknut – Zinc Die Cast

Rigid Threaded Locknut – Zinc Die Cast Velkor Rigid Threaded Locknut – Zinc Die Cast secures a threaded conduit or fitting at a box or enclosure entry.

Rigid Service Entrance Cap – Threaded – Aluminum

Rigid Service Entrance Cap – Threaded – Aluminum Velkor Rigid Service Entrance Cap – Threaded – Aluminum forms a weatherhead at a threaded IMC or RMC service-entrance riser.

Intermediate Metal Conduit

Intermediate Metal Conduit Velkor Intermediate Metal Conduit (IMC) provides greater wall strength and mechanical protection than EMT while remaining lighter than conventional rigid metal conduit. Three product configurations allow buyers to select the appropriate wall thickness, zinc coating and standard compliance for their market, project and budget.

View all IMC/RMC Conduit System

Non-Metallic Liquid-Tight 90° Connector – PVC

Non-Metallic Liquid-Tight 90° Connector – PVC Velkor Non-Metallic Liquid-Tight 90° Connector – PVC connects non-metallic liquid-tight flexible conduit to an enclosure at a 90-degree angle.

Non-Metallic Liquid-Tight Straight Connector – PVC

Non-Metallic Liquid-Tight Straight Connector – PVC Velkor Non-Metallic Liquid-Tight Straight Connector – PVC connects non-metallic liquid-tight flexible conduit to an enclosure in a straight approach.

Flex-to-Rigid Connectors – Zinc Die Cast

Flex-to-Rigid Connectors – Zinc Die Cast Velkor zinc die-cast flex-to-rigid connectors join flexible and rigid conduit, with three-screw hexagon and one-screw quincunx versions.

Non-Metallic Liquid-Tight Flexible Conduit

Non-Metallic Liquid-Tight Flexible Conduit Velkor non-metallic flexible conduit provides a flexible raceway for equipment and enclosure connections.

Three-Piece Flexible Conduit Connector – Zinc Die Cast

Three-Piece Flexible Conduit Connector – Zinc Die Cast Velkor Three-Piece Flexible Conduit Connectors provide a zinc die-cast enclosure connection in metric sizes from 16 to 63 mm.

FMC Screw-In Connector – Zinc Die Cast

FMC Screw-In Connector – Zinc Die Cast Velkor FMC Screw-In Connector – Zinc Die Cast terminates flexible metal conduit at an enclosure using a screw-in connection.

View all Flexible Conduit System

RIGID Threaded Conduit Bodies

RIGID Threaded Conduit Bodies Velkor RIGID threaded conduit bodies provide accessible direction changes and pull points in threaded rigid conduit runs. Available in C, LB, LL, LR, and T configurations, each body is supplied with a cover and gasket.

EMT Set-Screw Conduit Bodies

EMT Set-Screw Conduit Bodies Velkor EMT set-screw conduit bodies provide accessible direction changes and pull points in electrical metallic tubing runs. Available in C, LB, LL, LR, and T configurations, each body is supplied with a cover and gasket.

Single-Gang Weatherproof Boxes

Single-Gang Weatherproof Boxes Velkor single-gang weatherproof boxes provide cast aluminum wiring space for surface-mounted devices and conduit terminations. Hole-pattern variants are organized by opening arrangement, including side-opening models identified by an X suffix.

Double Gang Weatherproof Boxes

Double Gang Weatherproof Boxes Velkor double gang weatherproof boxes provide cast aluminum wiring space for multi-device surface installations and conduit entry arrangements. The grouped catalog structure separates standard and side-opening hole patterns, with X suffixes reserved for side-opening models.

Triple-Gang Weatherproof Boxes

Triple-Gang Weatherproof Boxes Velkor Triple-Gang Weatherproof Boxes provide three device positions in a 2-inch-deep aluminum body.

4-Inch Round Weatherproof Boxes

4-Inch Round Weatherproof Boxes Velkor 4-Inch Round Weatherproof Boxes provide a round wiring enclosure with four side entries and one bottom entry.

View all Electrical Boxes & Conduit Bodies

41 × 41 mm Strut Channel – Plain and Slotted

41 × 41 mm Strut Channel – Plain and Slotted Velkor 41 × 41 mm strut channel is available in plain and slotted 3-meter configurations. A standard 2.5 mm thickness supports general framing and support-system selection, while alternative thicknesses and four finish codes are available for project-specific ordering.

41 × 21 mm Strut Channel – Plain and Slotted

41 × 21 mm Strut Channel – Plain and Slotted Velkor 41 × 21 mm strut channel is available in plain and slotted 3-meter configurations. The lower-profile section uses a standard 2.5 mm thickness, while other thicknesses and four finish options are available for project-specific ordering.

Strut Clamps

Strut Clamps Velkor strut clamps cover catalog series VK2101–VK2110 and trade sizes from 1/2 in through 4 in. The range is organized under the Strut Channel System; model-to-size mapping and product-specific construction details require confirmation before publication or ordering.

View all Strut Channel System

Metric EMT Steel Conduit – Unthreaded

Metric EMT Steel Conduit – Unthreaded Velkor Metric EMT Steel Conduit is an unthreaded metallic raceway for routing and protecting electrical conductors. Six metric sizes are supplied in 3 m lengths, with confirmed outside-diameter limits, wall thickness, piece weight and bundle quantity shown for each catalog number.

Metric RMC Steel Conduit – Hot-Dip Galvanized

Metric RMC Steel Conduit – Hot-Dip Galvanized Velkor Metric RMC Steel Conduit is a heavier-wall metallic raceway with threaded ends for compatible rigid-conduit connections. The supplied table covers 20–110 mm sizes in 3 m lengths and records diameter limits, wall thickness, piece weight and package quantity for each model.

Metric EMT Connector – Set-Screw Type – Zinc

Metric EMT Connector – Set-Screw Type – Zinc Velkor Zinc Set-Screw EMT Connectors terminate unthreaded metric conduit at junction boxes, cabinets and panels. The conduit-side screw secures the tube, while the threaded enclosure end forms the box entry. Sizes run from 16 to 110 mm. Complies with IEC 61386-1 and IEC 61386-21.

Metric EMT Coupling – Set-Screw Type – Zinc

Metric EMT Coupling – Set-Screw Type – Zinc Velkor Zinc Set-Screw EMT Couplings join two matching conduit lengths in a straight run. Separate screws secure the tube ends, providing accessible fastening points on both sides of the joint. The range covers 16–110 mm metric EMT. Complies with IEC 61386-1 and IEC 61386-21.

Metric EMT Connector – Autofijación Type – Steel

Metric EMT Connector – Autofijación Type – Steel Velkor Autofijación Steel EMT Connectors provide the transition from matching metric conduit to a box or cabinet. Five sizes cover 20, 25, 32, 40 and 50 mm conduit for installations specifying the Autofijación fitting format. Complies with IEC 61386-1 and IEC 61386-21.

Metric EMT Coupling – Autofijación Type – Steel

Metric EMT Coupling – Autofijación Type – Steel Velkor Autofijación Steel EMT Couplings connect two matching conduit lengths in a straight route. The series covers 20–50 mm metric EMT and is intended for layouts specifying Autofijación fittings. Complies with IEC 61386-1 and IEC 61386-21.

View all IEC 61386 Conduit System

BM Series Modular Switches & Sockets

BM Series Modular Switches & Sockets BM Series is a modular range of wall switches, power socket outlets, USB and communication outlets, combination units, and interchangeable cover plates. Buyers can select the required electrical function and coordinate the installation with a cataloged plate color or decorative finish.

BM Wall Switches

BM Wall Switches BM wall switches offer one, two or three rocker controls in a matching rectangular faceplate. White, silver, champagne and wood-effect versions are shown for the switch range.

BM Mounting Frames and Accessories

BM Mounting Frames and Accessories The catalogue lists BM00, BM01, BM05 and BM06 mounting bases alongside the BM faceplate range. It also includes the M00 frame, MA22 and MC22 companion plates, and BMWP01 hinged cover accessory.

BM Power Sockets

BM Power Sockets BM power sockets combine different outlet layouts with the BM rectangular faceplate. The range includes single outlets, paired outlets and wider multi-outlet configurations.

BM Function Modules

BM Function Modules BM function modules are the individual components used to build the range of wall controls and outlets. The selection includes rocker switches, bell controls, power sockets, USB outlets, communication connectors and a blanking module.

BM Bell Push Switches

BM Bell Push Switches BM1100 bell switches have a single bell-symbol button within the BM rectangular faceplate. White, silver, champagne and wood-effect versions are listed at 10A/120-250V.

View all Switches & Sockets