Hammond 187E16 16V CT 56VA Chassis Mount Power Transformer
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Create Free Business AccountKey Features
- 16V C.T. secondary at 3.5 A, rated 56 VA
- Single 115 VAC primary, 50/60 Hz operation; dual-primary version is 186E16
- 3.68 in (93 mm) L x 1.81 in (46 mm) D x 2.25 in (57 mm) H, 3.12 in (79 mm) mounting centers
- Combination solder or quick connect terminals
- Split bobbin construction, no electrostatic shield needed
- Hi-pot tested to 2 KV RMS; Class B (130 °C) insulation
- UL listed (# E207860) Type 3AH and CSA Certified; RoHS and REACH compliant
Rated 56 VA, the 187E16 supplies a 16 V center-tapped secondary at 3.5 A. It belongs to the 187 series of chassis-mount, low-voltage power transformers, which run on 50/60 Hz and suit OEM engineers and panel builders who need a fixed step-down secondary with a center tap. If you need a dual 115/230 VAC primary with the same secondary, the ordering table pairs this part with the 186E16. The part page's primary-voltage attribute reads "115 / 230 VAC", while its descriptions, the 186E16 cross-reference and the ordering table place 187E16 in the 115 VAC single-primary column; confirm the primary configuration against your design before ordering.
Construction is an economical open-style channel frame for chassis mounting. Split bobbin construction removes the need for an electrostatic shield, insulation is Class B (130 °C), and temperature rise is designed not to exceed Class A for longer life. Combination solder or quick connect terminals allow either soldered leads or quick connect wiring.
In the E-size frame, the 187E16 measures 3.68 in (93 mm) long, 1.81 in (46 mm) deep not including terminals (2.19 in (56 mm) to the terminal), and 2.25 in (57 mm) high, with 3.12 in (79 mm) mounting centers. Shipping weight is 1.7 lbs (0.77 kg).
The series is hi-pot tested to 2 KV RMS, UL listed (# E207860) Type 3AH and CSA Certified. This part is listed as RoHS and REACH compliant.
Ideal For
- Chassis-mounted 16V center-tapped supplies from a 115 VAC line
- OEM equipment power sections needing a 50/60 Hz step-down transformer
- Builds wired with solder or quick connect terminals
- Designs rated around 56 VA
Overview
| Series | 187 Series (single primary); 186-187 Series family |
| Product Type | Power transformer, chassis mount |
| Long Description | Transformer, chassis mount, 115VAC, 56VA, 16V C.T.@3.5A, 187 Series |
| Short Description | TX 115VAC, 56VA 50/60HZ |
| Construction Style | Open style, channel frame - chassis mount |
| Dual-Primary (115/230 VAC Equivalent | 186E16 |
Dimensions
| Height (C) | 2.25 in (57 mm) |
| Length (L) | 3.68 in (93 mm) |
| Mounting Centers (D) | 3.12 in (79 mm) |
| Depth To Terminal (E) | 2.19 in (56 mm) |
| Depth, Not Including Terminals (B) | 1.81 in (46 mm) |
Electrical
| Frequency | 50/60 Hz |
| Power Rating | 56 VA |
| Primary Voltage | 115 VAC (single primary) |
| Secondary Current | 3.5 A |
| Hi-Pot Test (Series) | 2 KV RMS |
| Secondary Voltage (RMS) | 16V C.T. |
| Primary Voltage (Part Page Attribute) | 115 / 230 VAC |
Identifiers
| UPC | 623980761312 |
| UNSPSC | 39121301 |
| Part Number | 187E16 |
Packaging & Shipping
| Shipping Weight | 1.7 lbs (0.77 kg) |
Construction & Finish
| Bobbin | Split bobbin construction (eliminates the need for an electrostatic shield) |
| Terminals | Combination solder or quick connect |
| Insulation Class | Class B (130 °C) |
| Temperature Rise | Designed not to exceed Class A |
Compliance & Certifications
| UL | UL listed (# E207860) Type 3AH |
| CSA | CSA Certified |
| RoHS Compliant | Yes |
| REACH Compliant | Yes |
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Frequently Asked Questions
What are the output ratings of the 187E16?▾
The 187E16 has a 16V C.T. (center-tapped) RMS secondary rated 3.5 A, for 56 VA, from a 115 VAC primary at 50/60 Hz.
Is there a 230 VAC version of the 187E16?▾
Yes. The ordering table lists 186E16 as the dual-primary 115/230 VAC part with the same 16V C.T. secondary and 3.5 A rating. The 187E16 is the single-primary 115 VAC version. Note that the 187E16 part page lists its primary voltage attribute as "115 / 230 VAC".
What are the mounting dimensions of the 187E16?▾
It measures 3.68 in (93 mm) long, 1.81 in (46 mm) deep not including terminals, 2.19 in (56 mm) deep to the terminals and 2.25 in (57 mm) high, with mounting centers of 3.12 in (79 mm).
How are connections made?▾
The transformer has combination solder or quick connect terminals, so leads can be soldered or fitted with quick connect terminals.
What approvals does the 187E16 carry?▾
The 186-187 series is UL listed (# E207860) Type 3AH and CSA Certified, and this part is listed as RoHS and REACH compliant.
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