Hammond BF5G 75VA Class 2 Box Mount Transformer, 240V to 24V
Ships from and sold by A5 IT
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Create Free Business AccountKey Features
- 240V AC primary, 24V AC secondary, 3.13 A output at 75 VA
- Class 2 energy limiting, limited by a built-in circuit breaker
- Box plate mounting for easy installation
- Stripped wire primary leads (6 in minimum), screw terminal secondary
- Black input leads with the 240V lead in red
- Rugged, low noise design for indoor use; 50/60 Hz
- c UL us listed #E184371 and CSA certified (209651)
- REACH and RoHS compliant
The BF5G is a Class 2 energy limiting transformer on a box mount plate, stepping 240V AC down to a 24V AC secondary at a 75 VA power rating. It is intended for electricians, installers and OEM builders powering low-voltage loads such as chimes, door bells, security systems, decorative lighting, furnaces, humidifiers, appliances, vending machines and intercom systems.
A 24 V secondary is typical for furnace, humidifier and security-system control circuits, and at 75 VA this unit can supply up to 3.13 A. The design is described as rugged and low noise, and it is for indoor use only. The primary side uses stripped wire leads and the secondary uses screw terminals, so the low-voltage output wiring can be landed without splices.
The transformer is mounted on a box plate for easy installation. Input leads are black, 6 in minimum, and on this 240V model the 240V lead is red for easy identification during wiring. The unit is designed for 50/60 Hz operation, with output limited by a built-in circuit breaker. Overall dimensions are 3.00 in (76 mm) A x 2.50 in (64 mm) B x 3.75 in (95 mm) C, and the shipping weight is 3.37 lbs (1.53 kg).
On compliance, the BF5G is c UL us listed under file E184371 as Class 2 (not inherently limited) and CSA certified (209651). It is also REACH and RoHS compliant.
Ideal For
- Door bells and chimes
- Security and intercom systems
- Furnace and humidifier controls
- Decorative lighting
- Appliances and vending machines
Overview
| Series | BF Series - Class 2 Energy Limiting Box Mount |
| Product Type | Transformer, Class 2 energy limiting, box mount |
| Short Description | CLASS 2 TX 75VA 240V |
Dimensions
| Overall Dimension A | 3.00 in (76 mm) |
| Overall Dimension B | 2.50 in (64 mm) |
| Overall Dimension C | 3.75 in (95 mm) |
Electrical
| Frequency | 50/60 Hz |
| Protection | Limited by built-in circuit breaker |
| Power Rating | 75 VA |
| Output Current | 3.13 A (RMS) |
| Primary Termination | Stripped wire input leads, black, 6 in minimum; 240V lead is red |
| Primary (Input) Voltage | 240 VAC (RMS) |
| Secondary (Output) Voltage | 24 VAC (RMS) |
Identifiers
| UPC | 623980057101 |
| UNSPSC | 39121301 |
| Part Number | BF5G |
Packaging & Shipping
| Shipping Weight | 3.37 lbs (1.53 kg) |
Construction & Finish
| Design | Rugged, low noise |
| Mounting | Mounted on box plate |
Environmental & Protection
| Environment | Indoor use only |
Compliance & Certifications
| UL | c UL us listed #E184371 - Class 2 Not inherently limited |
| CSA | CSA certified (209651) |
| RoHS Compliant | Yes |
| REACH Compliant | Yes |
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Frequently Asked Questions
What voltages does the BF5G accept and supply?▾
It takes 240V AC (RMS) on the primary and delivers 24V AC (RMS) on the secondary, with a 75 VA rating and 3.13 A output current.
Is this transformer inherently limited?▾
No. It is c UL us listed #E184371 as Class 2, not inherently limited; output is limited by a built-in circuit breaker.
How is it wired?▾
The primary uses stripped wire leads (black, 6 in minimum, with the 240V lead in red) and the secondary uses screw terminals.
Can it be used outdoors?▾
No. The BF Series is for indoor use only.
Will it run on 50 Hz power?▾
Yes. All BF models are designed for 50/60 Hz operation.
Is there a 120V input version with the same output?▾
Yes. The BF Series includes the BF2G, which has a 120V primary and the same 24V, 75 VA output.
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