Hammond 167S25 250 VA 25 VCT 10 A Enclosed Filament Transformer
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Create Free Business AccountKey Features
- 250 VA rating with a 25 V centre-tapped secondary (RMS) at 10 A
- 115 VAC, 60 Hz primary
- Enclosed, 4-hole chassis mount; mounting slots 0.20 in (5 mm) x 0.38 in (10 mm)
- Body dimensions A 3.75 in x B 4.00 in x C 4.56 in
- Dual bobbin design, no electrostatic shield required
- Class B insulation (130 degrees C), hi-pot tested at 2,000 V RMS
- UL listed (# E50394) and CSA certified (209651)
- Minimum 6 in long leads
The 167S25 is a low voltage, filament-type power transformer from the 167 Series, in an enclosed, chassis mount package with a 115 VAC, 60 Hz primary. It is rated 250 VA and delivers a 25 V centre-tapped secondary (RMS) at 10 A, for OEM engineers, equipment builders and repair technicians who need a fixed low-voltage AC secondary from a 115 V line. The 167S25 supplies 25 V centre-tapped at 10 A for a 250 VA rating, in the 3.75 x 4.00 in body.
The 167 Series uses a dual bobbin design, so no electrostatic shield is required. Insulation is Class B (130 degrees C), units are hi-pot tested at 2,000 V RMS, and every secondary in the series is centre tapped. Leads are a minimum of 6 in long, and the series is UL listed (# E50394) and CSA certified (209651).
Per the series ordering table, the 167S25 measures A 3.75 in (95 mm), B 4.00 in (102 mm) and C 4.56 in (116 mm), with D 3.00 in (76 mm) and E 2.81 in (71 mm). Its mounting slots (G) are 0.20 in (5 mm) x 0.38 in (10 mm), used with the enclosed four-hole chassis mount. Shipping weight is 8.4 lbs (3.81 kg).
The 167S25 is listed as RoHS compliant and REACH compliant, with UPC 623980242101 and UNSPSC 39121301.
Ideal For
- Filament supply windings at 25 V centre-tapped
- Rectifier (FIL-RECT) supplies needing 25 V C.T. at up to 10 A
- Chassis-mounted equipment powered from 115 VAC, 60 Hz
- OEM and replacement low voltage transformer applications
Mounting
| Mounting Style | Enclosed, 4 hole chassis mount |
| Mounting Slot (G) | 0.20 in (5 mm) x 0.38 in (10 mm) |
Overview
| Series | 167 Series, Low Voltage, Filament - 15 VA to 640 VA |
| Product Type | Power transformer, low voltage, enclosed chassis mount |
| Long Description | Power transformer, low voltage, enclosed chassis mount, 250VA 115 25VCT |
| Short Description | FIL-RECT 250VA 115 25VCT |
Dimensions
| Dimension A | 3.75 in (95 mm) |
| Dimension B | 4.00 in (102 mm) |
| Dimension C | 4.56 in (116 mm) |
| Dimension D | 3.00 in (76 mm) |
| Dimension E | 2.81 in (71 mm) |
Electrical
| Hi-Pot Test | 2,000 V RMS |
| Power Rating | 250 VA |
| Primary Voltage | 115 VAC, 60 Hz |
| Secondary Current (RMS) | 10 A |
Identifiers
| UPC | 623980242101 |
| UNSPSC | 39121301 |
| Part Number | 167S25 |
Packaging & Shipping
| Shipping Weight | 8.4 lbs (3.81 kg) |
Construction & Finish
| Leads | Minimum 6 in long |
| Winding Design | Dual bobbin, no electrostatic shield required |
| Insulation Class | Class B (130 degrees C) |
Compliance & Certifications
| UL | UL listed (# E50394) |
| CSA | CSA certified (209651) |
| RoHS Compliant | Yes |
| REACH Compliant | Yes |
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Frequently Asked Questions
What are the secondary ratings of the 167S25?▾
The 167S25 has a 25 V centre-tapped secondary (RMS) rated 10 A, for a power rating of 250 VA.
What input voltage does the 167S25 need?▾
The primary is rated 115 VAC, 60 Hz.
How is the 167S25 mounted?▾
It is an enclosed, 4 hole chassis mount transformer with mounting slots of 0.20 in (5 mm) x 0.38 in (10 mm).
Is the 167S25 UL listed?▾
Yes. The 167 Series is UL listed (# E50394) and CSA certified (209651), and this part is listed as RoHS and REACH compliant.
What are the dimensions of the 167S25?▾
The series table lists A 3.75 in (95 mm), B 4.00 in (102 mm), C 4.56 in (116 mm), D 3.00 in (76 mm) and E 2.81 in (71 mm). Shipping weight is 8.4 lbs (3.81 kg).
What insulation class is the 167S25?▾
Class B insulation (130 degrees C), and units are hi-pot tested at 2,000 V RMS.
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