Plug-in transformer · 40 VA 120 VAC input 24 VAC output screw terminals 3-prong plug · Hammond Manufacturing BPE2G
Class 2 energy-limiting plug-in transformer with 120 VAC input and 24 VAC secondary output at 40 VA (1.67 A max). Commonly used for HVAC controls, relays, panels, and other 24 VAC control loads where a grounded 3-prong wall plug and screw-terminal output are preferred.
What this product is for
The Hammond Manufacturing BPE2G is a Class 2 energy-limiting plug-in transformer power supply that converts 120 VAC line voltage to 24 VAC control power. It is intended for low-voltage control applications that need a wall-plug form factor with screw-terminal secondary connections.
Use for
Use for 24 VAC HVAC controls, relays, control panels, security and signalling equipment, and other low-voltage devices that require up to 40 VA total load. A practical rule of thumb is to keep the connected load at or below the transformer's 40 VA rating, with some margin for startup or inrush where applicable. Actual load suitability depends on the connected equipment and installation conditions.
Avoid for
Avoid for devices that require DC output, regulated output, higher than 24 VAC output, or loads above 1.67 A maximum secondary current. Do not use where a hardwired transformer, enclosure-mounted power supply, or weather-exposed installation is required unless the overall installation is properly protected and code-compliant.
Best for
Best for service replacements, retrofit control power, and bench or field applications where a grounded North American wall plug and screw-terminal output make installation straightforward for technicians and electricians.
Installed in
Typically installed in commercial, institutional, and light industrial control setups, as well as service applications for HVAC and building-control equipment. The body size is approximately 2.13 in x 2.80 in x 3.58 in (54.1 x 71.1 x 91.0 mm), which helps when checking clearance around adjacent receptacles or equipment.
Why this product exists
This transformer provides a simple way to obtain 24 VAC Class 2 control power from a standard 120 VAC receptacle without adding a separate enclosure-mounted transformer. The grounded 3-prong plug and screw-terminal output suit many control and service applications where quick replacement and secure low-voltage termination matter.
Compared with similar products
Compared with smaller plug-in transformers, this 40 VA unit supports higher 24 VAC control loads. Compared with DC wall adapters, it provides AC secondary output for equipment designed specifically for 24 VAC. Compared with hardwired control transformers, it is faster to deploy where a receptacle-fed solution is acceptable.
Specifications
- Manufacturer: Hammond Manufacturing
- Part number: BPE2G
- Series: BP Series Class 2 Energy Limiting Plug-in
- Product type: Plug-in transformer / power supply
- Input voltage: 120 VAC, 60 Hz
- Output voltage: 24 VAC
- Power rating: 40 VA
- Maximum output current: 1.67 A
- Input plug: NEMA 5-15P, 3-prong grounded plug
- Output connection: Screw terminals
- Mounting style: Wall plug-in
- Approvals: CSA, UL
- Compliance: RoHS, REACH
- Approximate dimensions: 2.13 in L x 2.80 in W x 3.58 in H (54.1 mm x 71.1 mm x 91.0 mm)
- Approximate shipping weight: 1.75 lb (0.79 kg)
Selection note: verify the connected device requires 24 VAC, not 24 VDC. Actual performance depends on connected load, inrush, installation conditions, and local electrical code.
- MountingWall plug-in
- SeriesBP Series Class 2 Energy Limiting Plug-in
- Dimensions2.13 in L x 2.80 in W x 3.58 in H (54.1 mm x 71.1 mm x 91.0 mm)
- Wattage40 VA
- ComplianceRoHS, REACH
- Approximate Shipping Weight1.75 lb (0.79 kg)
- ApprovalsCSA, UL
- Input Voltage120 VAC, 60 Hz
- Output Voltage24 VAC
- Maximum Output Current1.67 A
- BrandsHammond Manufacturing
- Stock in Elmira1
- Stock in Flesherton1
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