MarketsCastingsConnectivityAbout UsWhy Sigma
Electrical

An extensive range of robust fittings and weatherproof products.

Automotive

Connectivity solutions such as high brackets, busbars, and connector pins.

Power Transmission & Distribution

Connectors & structural components for cutouts, transformers, & substations.

Aerospace

Complex sensor housings & fracture-critical products.

Appliances

Robust castings and assemblies for everyday appliances.

Commercial Hardware

Finished components for commercial & residential hardware applications.

Electronics & Telecom

Precision metal stamped sensors, connectors and cast housings & covers.

Fluid Power

Durable, precision products for high-pressure applications.

Food & Beverage

Handles, leveling pins, flow valves & button housings.

Lighting

Custom housings to fully assembled commercial & industrial light fixtures.

Marine

Durable corrosion-resistant engineered castings and subassemblies.

Medical & Dental

Medical-grade parts for implants, housings, manifolds, and pumps.

Oil & Gas

Custom housings and covers for flow control, pressure valves & meters.

Power Tools

Durable yet lightweight custom metal housings.

Solar

Innovative precision metal stamped parts.

High Pressure Die Casting

High-pressure liquid metal is pressed into a precision metal mold cavity, and then cooled & solidified under pressure.

Ideal for a wide range of applications, including automotive, agricultural, electronics, and medical.

Sand Casting

Castings with complex shapes & inner cavities that are produced in a sand mold

Ideal for parts with complex shapes and inner cavities

Gravity Die Casting

A mold is filled with liquid metal using gravity and cooled and solidified in the mold to obtain a casting

Ideal for parts with complex shapes made with steel, aluminum or magnesium alloys

Investment Casting

A process used to obtain a mold without a parting surface; creates parts with high dimensional & geometric accuracy

Ideal for near-net shaped parts with complex shapes and high precision requirements

Partner Services

Custom Tooling, Machining, Surface Finishing, Special Purpose Machine Design & Development

Precision Metal Stamping

More than 80 presses convert metal sheets into custom parts

Ideal for parts for electronic connectors and microprocessor chips

Swiss Screw Machining

A specialized CNC machine capable of producing extremely small, precise parts

Ideal for complex miniature screws, contact pins & micro-fasteners

Partner Services

Rapid Prototypes, Heat Treating, Automated Assembly

Company History

Learn more about our company milestones.

Plant Locations

Learn more about our global manufacturing facilities.

Company News

See our company announcements and press releases.

Contact Us

Let us know how we can help create a solution for you

Resources

Download catalogs and key product guides.

Global Code of Conduct

Download our Code of Conduct and report violations.

Innovation at Sigma

Purposeful innovation – the continual improvement and innovation of custom-designed and precision-made products and solutions.

Engineered Solutions

Sigma offers solutions for complex product characteristics and technical requirements.

Global Supply Chain Management

U.S.-based supply chain management teams support our customers.

Partner Services

Sigma is a vertically integrated single-source solution provider.

Connection Type: Universal

< Products

One-Gang Universal Receptacle Cover

Material: Metal Die-Cast
Category: Weatherproof
Sub Category: Cover
Type(s): 1-Gang
Connection Type(s): DuplexGFCIRoundUniversal
Feature(s): HorizontalVertical

One-gang universal receptacle covers are used to provide weatherproof protection for an outdoor receptacle.

  • 6 configurations
  • Adaptable for GFCI, duplex and 1.41″ round receptacles
  • Suitable for wet locations when the covers are closed
  • For vertical or horizontal installation
  • Lockable
  • Includes adaptor plates, gasket and hardware
Color
Color Model Number
Bronze MC1M3A1
Gray MC1M3G1
White MC1M3W1
AB
4.572.81
cULus: E121488
Standards: UL 514D, CSA C22.2 No. 42.1-13
65!

WARNING: Cancer and Reproductive Harm – www.P65Warnings.ca.gov.

< Products

One-Gang Universal GFCI Receptacle Kit

Material: Metal Die-Cast
Category: Weatherproof
Sub Category: BoxCoverKit
Type(s): 1-Gang
Connection Type(s): GFCIUniversal
Feature(s): HorizontalVertical

One-gang universal GFCI receptacle kits are used to provide weatherproof protection for the included outdoor GFCI receptacle.

  • Suitable for wet locations when the covers are closed
  • For vertical or horizontal mounting with the universal cover’s corner hinge
  • 15-Amp tamper-resistant, weather-resistant GFCI receptacle included
  • Includes one-gang metal box with three 1/2″ holes, one-gang universal cover, TRWR GFCI receptacle, closure plugs, gasket and hardware
Color
Color Model Number
Bronze FB122RA3
Black FB122RB3
Gray FB122RG3
White FB122RW3
AB
4.572.83
cULus: E324138
Standards: UL 514D, CSA C22.2 No. 42.1-13
65!

WARNING: Cancer and Reproductive Harm – www.P65Warnings.ca.gov.

< Products

Kit of Rectangular Box, Cover & GFCI Receptacle

Material: Metal Die-Cast
Category: Weatherproof
Sub Category: BoxCoverKit
Type(s): 1-Gang
Connection Type(s): GFCIUniversal
Feature(s): HorizontalVertical

Box, Horizontal GFCI cover and receptacle kits are used to provide weatherproof protection for the included outdoor GFCI receptacle.

  • Suitable for wet locations when the covers are closed
  • For horizontal / vertical mounting
Color
Color Model Number
Bronze FB122RUA3
Gray FB122RUG3
White FB122RUW3
cULus: E324138
Standards: UL 514D, CSA C22.2 No. 42.1-13
< Products

One-Gang Universal Receptacle Cover

Material: Non-Metallic
Category: Weatherproof
Sub Category: Cover
Type(s): 1-Gang
Connection Type(s): DuplexGFCIRoundUniversal
Feature(s): HorizontalVertical

One-gang universal receptacle covers are used to provide weatherproof protection for an outdoor receptacle.

  • 6 configurations
  • Adaptable for GFCI, duplex and 1-3/8″ round receptacles
  • Suitable for wet locations when the covers are closed
  • For vertical or horizontal installation
  • Lockable
  • Includes adaptor plates, gasket and hardware
Color
Color Model Number
Gray C1M3PG1
White C1M3PW1
AB
4.763.01
cULus: E332841
Standards: UL 514D, CSA C22.2 No. 42.1-13
65!

WARNING: Cancer and Reproductive Harm – www.P65Warnings.ca.gov.

< Products

One-Gang Universal Receptacle Cover

Material: Metal Die-Cast
Category: Weatherproof
Sub Category: Cover
Type(s): 1-Gang
Connection Type(s): DuplexGFCIRoundUniversal
Feature(s): HorizontalVertical

One-gang universal receptacle covers are used to provide weatherproof protection for an outdoor receptacle.

  • 6 configurations
  • Adaptable for GFCI, duplex and 1.41″ round receptacles
  • Suitable for wet locations when the covers are closed
  • For vertical or horizontal installation
  • Lockable
  • Includes adaptor plates, gasket and hardware
Color
Color Model Number Master Pack Quantity UPC
Bronze 14147BR 12 031857341473
Gray 14147 12 031857141479
White 14147WH 12 031857641474
AB
4.572.81
cULus: E121488
Standards: UL 514D, CSA C22.2 No. 42.1-13
65!

WARNING: Cancer and Reproductive Harm – www.P65Warnings.ca.gov.

< Products

One-Gang Universal GFCI Receptacle Kit

Material: Metal Die-Cast
Category: Weatherproof
Sub Category: BoxCoverKit
Type(s): 1-Gang
Connection Type(s): GFCIUniversal
Feature(s): HorizontalVertical

One-gang universal GFCI receptacle kits are used to provide weatherproof protection for the included outdoor GFCI receptacle.

  • Suitable for wet locations when the covers are closed
  • For vertical or horizontal mounting with the universal cover’s corner hinge
  • 15-Amp tamper-resistant, weather-resistant GFCI receptacle included
  • Includes one-gang metal box with three 1/2″ holes, one-gang universal cover, TRWR GFCI receptacle, closure plugs, gasket and hardware
Color Model Number Master Pack Quantity UPC
Oil Rubbed Bronze 16449ORB 6 031857374495
cULus: E324138
Standards: UL 514D, CSA C22.2 No. 42.1-13
NEMA: NEMA 3R
65!

WARNING: Cancer and Reproductive Harm – www.P65Warnings.ca.gov.

< Products

One-Gang Universal Duplex Receptacle Kit

Material: Metal Die-Cast
Category: Weatherproof
Sub Category: BoxCoverKit
Type(s): 1-Gang
Connection Type(s): DuplexUniversal
Feature(s): HorizontalVertical

One-gang universal duplex receptacle kits are used to provide weatherproof protection for the included outdoor duplex receptacle.

  • Suitable for wet locations when the covers are closed
  • For vertical or horizontal mounting with the universal cover’s corner hinge
  • 15-Amp tamper-resistant, weather-resistant duplex receptacle included
  • Includes one-gang metal box with three 1/2″ holes, one-gang universal cover, TRWR duplex receptacle, closure plugs, gasket and hardware
Color
Color Model Number Master Pack Quantity UPC
Bronze 16446BR 6 031857364465
Gray 16446 6 031857164461
White 16446WH 6 031857664466
AB
4.582.83
cULus: E324138
Standards: UL 514D, CSA C22.2 No. 42.1-13
NEMA: NEMA 3R
65!

WARNING: Cancer and Reproductive Harm – www.P65Warnings.ca.gov.

< Products

One-Gang Universal GFCI Receptacle Kit

Material: Metal Die-Cast
Category: Weatherproof
Sub Category: BoxCoverKit
Type(s): 1-Gang
Connection Type(s): GFCIUniversal
Feature(s): HorizontalVertical

One-gang universal GFCI receptacle kits are used to provide weatherproof protection for the included outdoor GFCI receptacle.

  • Suitable for wet locations when the covers are closed
  • For vertical or horizontal mounting with the universal cover’s corner hinge
  • 15-Amp tamper-resistant, weather-resistant GFCI receptacle included
  • Includes one-gang metal box with three 1/2″ holes, one-gang universal cover, TRWR GFCI receptacle, closure plugs, gasket and hardware
Color
Color Model Number Master Pack Quantity UPC
Bronze 16449BR 6 031857364496
Gray 16449 6 031857164492
White 16449WH 6 031857664497
AB
4.572.83
cULus: E324138
Standards: UL 514D, CSA C22.2 No. 42.1-13
NEMA: NEMA 3R
65!

WARNING: Cancer and Reproductive Harm – www.P65Warnings.ca.gov.

< Products

One-Gang Universal Receptacle Cover

Material: Non-Metallic
Category: Weatherproof
Sub Category: Cover
Type(s): 1-Gang
Connection Type(s): DuplexGFCIRoundUniversal
Feature(s): HorizontalVertical

One-gang universal receptacle covers are used to provide weatherproof protection for an outdoor receptacle.

  • 6 configurations
  • Adaptable for GFCI, duplex and 1.41″ round receptacles
  • Suitable for wet locations when the covers are closed
  • For vertical or horizontal installation
  • Lockable
  • Includes adaptor plates, gasket and hardware
Color
Color Model Number Master Pack Quantity UPC
Gray 14140 12 031857141400
White 14140WH 12 031857641405
AB
4.763.01
cULus: E332841
Standards: UL 514D, CSA C22.2 No. 42.1-13
65!

WARNING: Cancer and Reproductive Harm – www.P65Warnings.ca.gov.