Hammond 1182J240 225 VA Toroid Power Transformer, 240V Single Secondary

The 1182J240 is a 225 VA toroid power transformer from the 1182 Series, for equipment that needs a single 240 V output from either a 117 V or 234 V supply. Its dual 117/234 VAC primary operates at 50/60 Hz, and the toroidal core shape gives the series its low profile, light weight, cool running and high efficiency, with low stray magnetic flux leakage (low EMI).

This model has a single secondary rated 240V @ 0.94A (RMS), labelled on the unit as 1x 240V @ 0.94A on the RED-BLU leads. The two 117 V primaries (BLK-WHT and BRN-ORN) are connected in parallel for 117 V input or in series for 234 V input. Voltage regulation is 5.80%, and the toroid has an open center (dimension reference G).

The 1182J240 is manufactured using Class B (130 °C) materials and is hi-pot tested at 4,000 VAC between primary and secondary. All leads exit 8"-9" long and are stripped 0.5" minimum; both primary and secondary leads are #20 TEW wire. It is UL recognized to UL 5085-1 and UL 5085-2 (file E207860), CSA certified to C22.2 #66.1-6 and #66.2-6 (file 209651), and RoHS and REACH compliant.

Mounting hardware is supplied: two 0.062" thick x 3.75" OD rubber washers, one 16 gauge x 3.56" OD steel mounting washer, and one 1/4-20 bolt 2.50" long with a lock washer and 1/4-20 hex nut. Drawing weight is 4.85 lbs +/- 4%; shipping weight is 5.3 lbs (2.40 kg). Because toroids can draw high magnetizing current at switch-on, the manufacturer recommends a slow-blow fuse, time-delayed breaker or soft-start circuitry on the supply line.