Hammond 266J24B 24VA 24V Center-Tapped 1A Power Transformer
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Create Free Business AccountKey Features
- 24 VA rating with a 24V C.T. @ 1A secondary
- 117/234 VAC, 50/60 Hz dual primary (parallel for 117 V, series for 234 V)
- Mounting style A; A 3.25 in (83 mm) x B 2.00 in (51 mm) x C 2.00 in (51 mm)
- Open style with minimum 6" long leads
- Dual bobbin design - no electrostatic shield required
- Class B (130 °C) insulation, UL listed as Class A (105 °C); hi-pot tested at 2,000V RMS
- UL listed (# E207860) Type 3AH, CSA certified (209651), RoHS and REACH compliant
The 266J24B is a 24 VA power transformer with a 117/234 VAC, 50/60 Hz dual primary and a 24 V center-tapped secondary rated 1 A. Unlike most 266 Series models, the ordering table lists no parallel-connection rating for it (shown as "-"), so it is specified purely by its 24 V C.T. output.
The primary accepts 117 or 234 VAC at 50/60 Hz; the 266 Series connection diagrams show the primaries wired in parallel for 117 VAC and in series for 234 VAC. The secondary is rated 24V C.T. @ 1A, and the 266J24B is designed for use with all windings engaged. Every unit is hi-pot tested at 2,000V RMS.
Construction is open style with minimum 6" long leads and a dual bobbin design, so no electrostatic shield is required. Class B insulation (130 °C) is used for extra protection, and the design is UL listed as a Class A (105 °C) design.
It uses mounting style A, while the similarly rated 266J24 uses style V and also offers a 12 V @ 2 A parallel rating. The ordering table gives mounting style A, dimensions A 3.25 in (83 mm), B 2.00 in (51 mm), C 2.00 in (51 mm) and D 2.81 in (71 mm), a mounting hole width of 0.19 in (5 mm) and a weight of 1.6 lb; shipping weight is 1.6 lbs (0.73 kg).
The series is UL listed (# E207860) Type 3AH and CSA certified (209651), and the 266J24B is listed as RoHS and REACH compliant (UPC 623980036687).
Ideal For
- 24 V center-tapped AC supply at 1 A
- Chassis-mounted equipment for 117 VAC or 234 VAC mains
- Designs laid out for mounting style A
Overview
| Type | Open style, chassis mount |
| Series | 266 Series |
| Description | Power transformer, chassis mount, 24VA, 24V C.T. @ 1A or -, 266 Series |
| Part Number | 266J24B |
| Series Name | Low Voltage/Filament, Dual Primary & Secondary |
| Manufacturer Short Description | POWER TX 24VCT@1A |
Dimensions
| Weight | 1.6 lbs |
| Dimension A | 3.25 in (83 mm) |
| Dimension B | 2.00 in (51 mm) |
| Dimension C | 2.00 in (51 mm) |
| Dimension D | 2.81 in (71 mm) |
| Mounting Style | A |
| Mounting Hole Width | 0.19 in (5 mm) |
Electrical
| Primary | 117/234 VAC, 50/60 Hz (dual primary) |
| Hi-Pot Test | 2,000V RMS |
| Power Rating | 24 VA |
| Winding Note | Designed for use with all windings engaged |
| Primary Wiring | Parallel connection for 117 VAC; series connection for 234 VAC |
| Secondary (RMS), Parallel | - |
| Secondary (RMS), Series (C.T.) | 24V C.T. @ 1A |
| Lead Colours (Connection Diagram) | Primary: Blk, Wht, Brn, Orn; Secondary: Red, Blu, Gry, Yel |
Identifiers
| UPC | 623980036687 |
| UNSPSC | 39121301 |
Packaging & Shipping
| Shipping Weight | 1.6 lbs (0.73 kg) |
Construction & Finish
| Leads | Minimum 6" long leads |
| Style | Open style |
| Insulation | Class B (130 °C) insulation; UL listed as a Class A (105 °C) design |
| Bobbin Design | Dual bobbin - no electrostatic shield required |
Compliance & Certifications
| UL | UL listed (# E207860) Type 3AH |
| CSA | CSA certified (209651) |
| RoHS Compliant | Yes |
| REACH Compliant | Yes |
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Frequently Asked Questions
What output voltages does the 266J24B provide?▾
The 266J24B is rated 24 VA with a 24V C.T. @ 1A secondary. No parallel rating is listed for this part.
Can the 266J24B run on 234 VAC as well as 117 VAC?▾
Yes. The primary is 117/234 VAC, 50/60 Hz: the connection diagram shows the primaries wired in parallel for 117 VAC and in series for 234 VAC.
What are the dimensions and weight of the 266J24B?▾
The ordering table lists mounting style A, dimension A 3.25 in (83 mm), B 2.00 in (51 mm), C 2.00 in (51 mm) and D 2.81 in (71 mm), a mounting hole width of 0.19 in (5 mm), and a weight of 1.6 lb. Shipping weight is 1.6 lbs (0.73 kg).
Does the 266J24B need an electrostatic shield?▾
No. It uses a dual bobbin design, so no electrostatic shield is required.
What approvals does the 266J24B have?▾
The 266 Series is UL listed (# E207860) Type 3AH and CSA certified (209651); it uses Class B (130 °C) insulation and is UL listed as a Class A (105 °C) design. The part is listed as RoHS and REACH compliant.
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