Hammond 266E12 1.8VA 12V/6V Low Voltage Chassis Transformer
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Create Free Business AccountKey Features
- 1.8 VA: 12V @ 0.15A series (C.T.) or 6V @ 0.3A parallel
- 117/234 VAC, 50/60 Hz dual primary (parallel for 117 V, series for 234 V)
- Secondaries usable center tapped, parallel connected or individually
- Mounting style A; A 2.06 in (52 mm) x B 1.22 in (31 mm) x C 1.25 in (32 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 266E12 is a 1.8 VA dual-primary, dual-secondary power transformer providing 12 V at 0.15 A with the secondaries in series (center-tapped) or 6 V at 0.3 A in parallel. It is the lowest VA rating listed in the 266 Series and is intended for small, low-draw 12 V or 6 V AC circuits.
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 secondaries can be used as a center tapped secondary (12V @ 0.15A), parallel connected (6V @ 0.3A) or used individually, and the unit 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.
Its 1.8 VA rating matches the bottom of the 266 Series range (1.8 VA to 240 VA). The ordering table gives mounting style A, dimensions A 2.06 in (52 mm), B 1.22 in (31 mm), C 1.25 in (32 mm) and D 1.75 in (44 mm), a mounting hole width of 0.19 in (5 mm) and a weight of 0.28 lb (0.13 kg); shipping weight is 0.28 lbs (0.13 kg).
The series is UL listed (# E207860) Type 3AH and CSA certified (209651), and the 266E12 is listed as RoHS and REACH compliant (UPC 623980024592).
Ideal For
- Low-draw 12 VAC or 6 VAC supply
- Center-tapped 12 V secondary for small circuits
- Chassis-mounted equipment for 117 VAC or 234 VAC mains
Overview
| Type | Open style, chassis mount |
| Series | 266 Series |
| Description | Power transformer, chassis mount, 1.8VA, 12V @ 0.15A or 6V @ 0.3A, 266 Series |
| Part Number | 266E12 |
| Series Name | Low Voltage/Filament, Dual Primary & Secondary |
| Manufacturer Short Description | POWER TX 117VAC - 12V@.15A |
Dimensions
| Weight | 0.28 lbs (0.13 kg) |
| Dimension A | 2.06 in (52 mm) |
| Dimension B | 1.22 in (31 mm) |
| Dimension C | 1.25 in (32 mm) |
| Dimension D | 1.75 in (44 mm) |
| Mounting Style | A |
| Mounting Hole Width | 0.19 in (5 mm) (drawing: 0.187 in / 5 mm) |
Electrical
| Primary | 117/234 VAC, 50/60 Hz (dual primary) |
| Hi-Pot Test | 2,000V RMS |
| Power Rating | 1.8 VA |
| Winding Note | Designed for use with all windings engaged |
| Secondary Use | Center tapped secondary, parallel connected or used individually |
| Primary Wiring | Parallel connection for 117 VAC; series connection for 234 VAC |
| Secondary (RMS), Parallel | 6V @ 0.3A |
| Secondary (RMS), Series (C.T.) | 12V @ 0.15A |
| Lead Colours (Connection Diagram) | Primary: Blk, Wht, Brn, Orn; Secondary: Red, Blu, Gry, Yel |
Identifiers
| UPC | 623980024592 |
| UNSPSC | 39121301 |
Packaging & Shipping
| Shipping Weight | 0.28 lbs (0.13 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 266E12 provide?▾
With the secondaries in series (center tapped) the 266E12 gives 12V @ 0.15A; with them in parallel it gives 6V @ 0.3A. It is rated 1.8 VA.
Can the 266E12 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 266E12?▾
The ordering table lists mounting style A, dimension A 2.06 in (52 mm), B 1.22 in (31 mm), C 1.25 in (32 mm) and D 1.75 in (44 mm), a mounting hole width of 0.19 in (5 mm), and a weight of 0.28 lb (0.13 kg). Shipping weight is 0.28 lbs (0.13 kg).
Does the 266E12 need an electrostatic shield?▾
No. It uses a dual bobbin design, so no electrostatic shield is required.
What approvals does the 266E12 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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