JH1X5K1EA1A15 Micron 1.5 kVA Buck-Boost Transformer, Group C, 120x240V to 12/24V (replaces J1X5K1EA1A02)
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Micron JH1X5K1EA1A15 is a 1.5 kVA Group C buck-boost transformer: 120 x 240 V primary, 12/24 V secondary, single phase, 600 V class. It is the current number for the old Micron J1X5K1EA1A02. It crosses to Acme T111684 and Square D 1.5S43F.
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JH1X5K1EA1A15 specifications
| Part number | JH1X5K1EA1A15 |
| Replaces Micron number | J1X5K1EA1A02 (discontinued) |
| Manufacturer | Micron Industries |
| Type | Buck-boost transformer, single phase |
| Voltage group | Group C |
| Primary | 120 x 240 V |
| Secondary | 12/24 V |
| Rating | 1.5 kVA |
| Insulation class | 600 V class |
| Load amps, boost or buck at 24 V | 62.5 A max (VA / 24 V) |
| Load amps, boost or buck at 12 V | 125 A max (VA / 12 V) |
| Weight | 40 lb |
| Warranty | 1 year (Micron) |
Source: FactoryMation Micron buck-boost Group C listing (current JH number, weight, group voltages) and Micron buck-boost product page. Load amps are the standard rule: transformer VA divided by the secondary volts in the connection. We confirm the Micron number and the wiring on every quote.
Cross reference
| Brand | Part number |
|---|---|
| Micron (old) | J1X5K1EA1A02 |
| Acme | T111684 |
| Eaton Cutler-Hammer | S10N04P16P |
| Hevi-Duty | HS19F1.5A |
| FPC | K1XGF12-1.5 |
| GE | 9T51B0111 |
| HPS (Hammond Power Solutions) | Q1C5ERCF |
| Jefferson | 416-1161-000 |
| Square D | 1.5S43F |
Source: Micron transformer cross reference MINT16A (January 2016), buck-boost section. Check ratings before you swap. Brand names identify the part being replaced; Applied Control is not affiliated with them.
How to use it
In buck or boost, the transformer carries only the added or removed volts. Size it on load amps x secondary volts. Wired as an isolation transformer it gives 12 or 24 VAC. Micron says buck-boost units are mainly for motor loads. Do not use one for a motor control circuit, to fix a swinging line, or to get a neutral on a delta system. On a 208Y/120 grounded system, a boost to 240 V leaves 139 V to ground. For three phase, Micron banks two units (open delta) or three units.
Common questions
What replaces Micron J1X5K1EA1A02?
JH1X5K1EA1A15. Same Group C, 120 x 240 V primary, 12/24 V secondary, 1.5 kVA.
What Micron part replaces Acme T111684?
JH1X5K1EA1A15, 1.5 kVA, Group C.
How much load can a 1.5 kVA buck-boost carry?
About 62.5 A with the 24 V connection, or 125 A with the 12 V connection. Send the line volts, load volts and load amps and we check it.
Related: Buck-boost sizing and full cross reference · Micron control transformers by kVA · Micron · Buck-boost transformers
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