Westinghouse Type MTC and MTA machine tool control transformers cross to Micron by VA and voltage. The most common one, 1F0892 (100 VA, 230 x 460 V to 115 V), crosses to Micron B100BTZ13JK. Find your Westinghouse style number in the tables, then read across. These are the older Westinghouse control transformers; TECO-Westinghouse motors are a separate line we also carry.
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MTC 230x460 to 115 V · 230x460 to 115 V, 60 Hz · MTA 230x460 to 115x230 V · MTA 230/460/575 to 115/95 V · MTA 115 to 24 V
Westinghouse Type MTC: 230 x 460 V primary, 115 V secondary, 50/60 Hz
| VA | Westinghouse | Micron |
|---|---|---|
| 50 VA | 1F0890 | B050BTZ13JK |
| 75 VA | 1F0891 | B075BTZ13JK |
| 100 VA | 1F0892 | B100BTZ13JK |
| 150 VA | 1F0893 | B150BTZ13JK |
| 200 VA | 1F0894 | B200BTZ13JK |
| 250 VA | 1F0895 | B250BTZ13JK |
| 300 VA | 1F0896 | B300BTZ13JK |
| 350 VA | 1F0897 | B350BTZ13JK |
| 500 VA | 1F0898 | B500BTZ13JK |
| 750 VA | 1F0899 | B750BTZ13JK |
| 1 kVA | 1F0900 | EF1K0BTZ13 |
| 1.5 kVA | 1F0901 | EF1K5BTZ13 |
| 2 kVA | 1F0902 | EF2K0BTZ13 |
| 3 kVA | 1F0903 | EF3K0BTZ13 |
| 5 kVA | 1F0904 | EF5K0BTZ13 |
Micron Group A: 220x440, 230x460 or 240x480 V primary, 110, 115 or 120 V secondary. 1 kVA and up are EconoTRAN, 180°C.
Westinghouse 230 x 460 V primary, 115 V secondary, 60 Hz
| VA | Westinghouse | Micron |
|---|---|---|
| 75 VA | 1F0927 | B075BTZ13JK |
| 100 VA | 1F0906 | B100BTZ13JK |
| 150 VA | 1F0907 | B150BTZ13JK |
| 200 VA | 1F0908 | B200BTZ13JK |
| 250 VA | 1F0909 | B250BTZ13JK |
| 300 VA | 1F0910 | B300BTZ13JK |
| 350 VA | 1F0911 | B350BTZ13JK |
| 500 VA | 1F0912 | B500BTZ13JK |
| 750 VA | 1F0913 | B750BTZ13JK |
| 1 kVA | 1F0914 | EF1K0BTZ13 |
| 1.5 kVA | 1F0965 | EF1K5BTZ13 |
| 2 kVA | 1F0966 | EF2K0BTZ13 |
| 3 kVA | 1F0967 | EF3K0BTZ13 |
| 5 kVA | 1F0968 | EF5K0BTZ13 |
Same Micron Group A parts as the MTC table above.
Westinghouse Type MTA: 230 x 460 V primary, 115 x 230 V secondary
| VA | Westinghouse | Micron |
|---|---|---|
| 50 VA | 1F2198 | B050PU1519JJ |
| 75 VA | 1F2185 | B075PU1519JJ |
| 100 VA | 1F2186 | B100PU1519JJ |
| 150 VA | 1F2189 | B150PU1519JJ |
| 200 VA | 1F2191 | B200PU1519JJ |
| 250 VA | 1F2034 | B250PU1519JJ |
| 300 VA | 1F1113 | B300PU1519JJ |
| 350 VA | 1F2187 | B350PU1519JJ |
| 500 VA | 1F2190 | B500PU1519JJ |
| 750 VA | 1F2188 | B750PU1519JJ |
| 1 kVA | 1F1687 | EF1K0BTZ1318 |
| 1.5 kVA | 1F1688 | EF1K5BTZ1318 |
| 2 kVA | 1F1696 | EF2K0BTZ1318 |
| 3 kVA | 1F1690 | EF3K0BTZ1318 |
| 5 kVA | 1F1701 | EF5K0BTZ1318 |
Micron Group K: 240 x 480 V primary, 120 x 240 V secondary. 1 kVA and up are EconoTRAN BTZ1318, 230 x 460 V primary, 115 x 230 V secondary.
Westinghouse Type MTA: 230/460/575 V primary, 115/95 V secondary
| VA | Westinghouse | Micron |
|---|---|---|
| 50 VA | 1F0987 | B050BTW37XX |
| 75 VA | 1F0988 | B075BTW37XX |
| 100 VA | 1F0989 | B100BTW37XX |
| 150 VA | 1F0990 | B150BTW37XX |
| 200 VA | 1F0991 | B200BTW37XX |
| 250 VA | 1F0992 | B250BTW37XX |
| 300 VA | 1F0993 | B300BTW37XX |
| 350 VA | 1F0994 | B350BTW37XX |
| 500 VA | 1F0995 | B500BTW37XX |
| 750 VA | 1F0996 | B750BTW37XX |
| 1 kVA | 1F0997 | EF1K0BTWZ37 |
| 1.5 kVA | 1F0998 | EF1K5BTWZ37 |
Micron Group H: 230/460/575 V primary, 95/115 V secondary. 1 kVA and up are EconoTRAN. The sheet prints the 50 and 75 VA numbers as 1F10987 and 1F10988; by the series pattern they are 1F0987 and 1F0988. We confirm on the quote.
Westinghouse Type MTA: 115 V primary, 24 V secondary
| VA | Westinghouse | Micron |
|---|---|---|
| 50 VA | 1F3052 | B050JB7JK |
| 100 VA | 1F3053 | B100JB7JK |
| 200 VA | 1F3054 | B200JB7JK |
Micron JB7JK: 115 x 230 V primary, 24 V secondary.
Source: Micron Industries control transformer cross reference for Westinghouse Type MTC and MTA, March 2018. Micron units through 750 VA are ImperviTRAN or ValuTRAN, 105°C construction, with 13/32 x 1-1/2 in secondary fuse clips where applicable and a class CC primary fuse block option. The sheet prints some EconoTRAN numbers with a letter O; the Micron numbers use a zero. Westinghouse MTA units with a 208/380/416 V primary (1F1025 to 1F1036) have no direct Micron standard; send the number and we cross it. Linked Micron numbers open the part we list at the same VA and voltage. Our listing can carry an added suffix letter (for example B150BTZ13JKF); we confirm the exact suffix on every quote.
How to read a Westinghouse style number
Westinghouse control transformers use a style number such as 1F0892. The number does not spell out the VA or voltage, so look it up in the tables above. 1F0895 is 250 VA, 230 x 460 V to 115 V, and crosses to Micron B250BTZ13JK.
Common questions
What Micron transformer replaces Westinghouse 1F0892?
Micron B100BTZ13JK, 100 VA, Group A. Primary 220x440, 230x460 or 240x480 V. Secondary 110, 115 or 120 V.
What replaces Westinghouse 1F0890?
Micron B050BTZ13JK, 50 VA, Group A.
What replaces Westinghouse 1F2186?
Micron B100PU1519JJ, 100 VA, 240 x 480 V primary, 120 x 240 V secondary.
What replaces Westinghouse 1F0989?
Micron B100BTW37XX, 100 VA, 230/460/575 V primary, 95/115 V secondary.
Get it crossed and quoted
Send the Westinghouse number and the quantity. We send back the Micron part and lead time.
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Related: Cutler-Hammer MTE cross · Square D 9070T cross · GE 9T58 cross · Dongan cross · Micron control transformers by kVA · All cross references
Westinghouse is a trademark of its owner. Applied Control Inc. is not affiliated with them. Names appear only to identify the part being replaced. Check the current Micron datasheet before you specify.