Description
Hirao Denki 230VA Single-Phase Transformer 100/200V Primary 12/18V Secondary 50/60Hz
This Hirao Denki 230VA single-phase transformer provides selectable primary input voltage of 100V or 200V AC and delivers multiple secondary output taps: 12V AC (via 0–12 taps) and 18V AC (via 18–0–18 taps). Rated at 230 VA and compatible with both 50 Hz and 60 Hz mains supplies, it is a compact open-frame unit suited for applications requiring stepped-down or dual-secondary AC power.
Specifications & What's Included
- Brand: Hirao Denki
- Power Rating: 230 VA
- Phase: Single Phase
- Frequency: 50/60 Hz
- Primary Voltage: 100V AC or 200V AC (selectable via terminal block — labeled 0V, 200V, 0V, 100V)
- Secondary Voltage: 12V AC (0–12 taps) and 18V AC (18–0–18 taps)
- Terminal Configuration: Multi-tap screw terminal blocks, top-mounted on primary and secondary sides
- Core: Exposed laminated iron core with visible copper winding
- Form Factor: Open frame with steel mounting base/feet
- Dimensions: 5" x 5" x 5" (approx.)
- Country of Manufacture: Japan
- Includes: Transformer unit only
Applications
Single-phase step-down transformers of this type are commonly used in industrial control panels, machine tool electronics, and laboratory power distribution where equipment requires lower AC voltages than the mains supply. The dual-secondary tap configuration — providing both 12V and 18V AC outputs — makes this transformer well suited for powering rectifier/filter circuits, relay coils, instrumentation, and control circuitry in automated or semi-automated equipment. The selectable 100V/200V primary allows the unit to operate on either Japanese 100V mains or standard international 200V supplies. Hirao Denki is a Japanese manufacturer of transformers and electromagnetic components, and units like this were commonly integrated into Japanese-manufactured industrial and laboratory equipment exported worldwide. This style of open-frame, terminal-block transformer remains in active use in industrial maintenance, repair, and retrofit applications today.
This Hirao Denki 230VA Single-Phase Transformer has been inspected and is in good used condition. The unit is clean overall with normal light wear consistent with previous use. The terminal blocks on both the primary and secondary sides appear intact and undamaged, and the core winding and mounting feet show no significant damage. Please view our photo set and contact us if you have any questions. Please note: We have multiple units in stock — yours may not be the one shown in the photos, however, it will be similar in condition and function.
Warranty Information
Additional Information
Brand: |
Hirao Denki |
Model: |
230VA Single-Phase Transformer |
Type: |
Single-Phase Step-Down Transformer |
SKU: |
45537 |
Power Rating: |
230 VA |
Primary Voltage: |
100V AC or 200V AC (selectable) |
Secondary Voltage: |
12V AC (0-12 taps) and 18V AC (18-0-18 taps) |
Phase: |
Single Phase |
Frequency: |
50/60 Hz |
Terminal Configuration: |
Multi-tap terminal block, top-mounted |
Primary Taps: |
0V, 100V, 200V |
Secondary Taps: |
0V, 12V (low bank); 18V, 0V, 18V (high bank) |
Form Factor: |
Open Frame / Panel Mount |
Dimensions: |
5" x 5" x 5" |
Country/Region of Manufacture: |
Japan |
Condition: |
Used – Inspected and in Good Condition |
Seller Notes: |
Inspected and in good condition. Sold as shown. |
Condition Notes: |
Hirao Denki 230VA Single-Phase Transformer inspected and in good used condition. Terminal blocks and core winding intact, no significant damage. Normal light wear present. Please contact us with any questions. |
