Hammond 182B240 15VA Toroidal Transformer, 240V Single Secondary

The 182B240 is a 15 VA toroidal power transformer from the 182 Series of low voltage, chassis-mount toroids. It pairs a dual 117/234 VAC, 50/60 Hz primary with a single 240 V secondary rated at 63 mA, giving designers a small, low-profile source of 240 V for bias, sensing or low-current auxiliary circuits.

The manufacturer lists this part as REPLACE WITH 1182B240, and the 182 Series is being discontinued as a stocked series, available while quantities last and superseded by the 1182 Series. Buyers maintaining existing equipment built around the 182B240 can use this listing to confirm the original specifications.

The toroid measures 2.70 in (69 mm) in outside diameter and 1.25 in (32 mm) high, with an open (non-potted) centre. It mounts with a single centre bolt; this size uses 8-32 hardware 1.50 in (38 mm) long, supplied with a top steel mounting washer plus top and bottom rubber washers. As a 160 VA-and-under unit it ships with two rubber insulating pads, one metal centering washer and all mounting hardware. Weight is 0.76 lbs in the series table and shipping weight is 0.8 lbs (0.36 kg).

Leads are flexible and at least 8 in long. The primary is wired in parallel for 117 V or in series for 234 V. Each 182 Series unit is Hi-Pot tested at 4,000 V RMS between primary and secondary, CSA certified to C22.2 #66 (file 209651), UL recognized to UL506 (file E207860) and CE certified to IEC950. The part is also RoHS and REACH compliant.