Square D Class 9070 Type T control transformers cross to Micron by VA and voltage code. The most common one, 9070T100D1 (100 VA, 230 x 460 V to 115 V), crosses to Micron B100BTZ13JK. Find the D code at the end of your Square D number, then read across at the same VA.
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D1 · D2 · D5 · D3, D20, D27 · D4, D51 · D6, D17, D33 · D7, D23 · D12, D31 · D32
Square D D1: 230 x 460 V primary, 115 V secondary
Micron Group A: 220x440/230x460/240x480 V primary, 110/115/120 V secondary.
| VA | Square D | Micron |
|---|---|---|
| 50 VA | 9070T50D1 | B050BTZ13JK |
| 75 VA | 9070T75D1 | B075BTZ13JK |
| 100 VA | 9070T100D1 | B100BTZ13JK |
| 150 VA | 9070T150D1 | B150BTZ13JK |
| 200 VA | 9070T200D1 | B200BTZ13JK |
| 250 VA | 9070T250D1 | B250BTZ13JK |
| 300 VA | 9070T300D1 | B300BTZ13JK |
| 350 VA | 9070T350D1 | B350BTZ13JK |
| 500 VA | 9070T500D1 | B500BTZ13JK |
| 750 VA | 9070T750D1 | B750BTZ13JK |
| 1 kVA | 9070T1000D1 | EF1K0BTZ13 |
| 1.5 kVA | 9070T1500D1 | EF1K5BTZ13 |
| 2 kVA | 9070T2000D1 | EF2K0BTZ13 |
| 3 kVA | 9070T3000D1 | EF3K0BTZ13 |
| 5 kVA | 9070T5000D1 | EF5K0BTZ13 |
Micron lists VF1K0BTZ13JK (ValuTRAN) as a second 1 kVA option. We also list Micron Group A ImperviTRAN at 1 to 5 kVA: 1 kVA, 1.5 kVA, 2 kVA, 3 kVA, 5 kVA.
Square D D2: 230 x 460 V primary, 24 V secondary
Micron Group B: 240 x 480 V primary, 24 V secondary.
| VA | Square D | Micron |
|---|---|---|
| 50 VA | 9070T50D2 | B050PU7JK |
| 75 VA | 9070T75D2 | B075PU7JK |
| 100 VA | 9070T100D2 | B100PU7JK |
| 150 VA | 9070T150D2 | B150PU7JK |
| 200 VA | 9070T200D2 | B200PU7JK |
| 250 VA | 9070T250D2 | B250PU7JK |
| 300 VA | 9070T300D2 | B300PU7JK |
| 350 VA | 9070T350D2 | B350PU7JK |
| 500 VA | 9070T500D2 | B500PU7JK |
| 750 VA | 9070T750D2 | B750PU7JK |
Square D D5: 550/575/600 V primary, 110/115/120 V secondary
Micron Group E: 550/575/600 V primary, 110/115/120 V secondary.
| VA | Square D | Micron |
|---|---|---|
| 50 VA | 9070T50D5 | B050WZ13XK |
| 75 VA | 9070T75D5 | B075WZ13XK |
| 100 VA | 9070T100D5 | B100WZ13XK |
| 150 VA | 9070T150D5 | B150WZ13XK |
| 200 VA | 9070T200D5 | B200WZ13XK |
| 250 VA | 9070T250D5 | B250WZ13XK |
| 300 VA | 9070T300D5 | B300WZ13XK |
| 350 VA | 9070T350D5 | B350WZ13XK |
| 500 VA | 9070T500D5 | B500WZ13XK |
| 750 VA | 9070T750D5 | B750WZ13XK |
| 1 kVA | 9070T1000D5 | EF1K0BTWZ37 |
| 1.5 kVA | 9070T1500D5 | EF1K5BTWZ37 |
| 2 kVA | 9070T2000D5 | EF2K0BTWZ37 |
| 3 kVA | 9070T3000D5 | EF3K0BTWZ37 |
| 5 kVA | 9070T5000D5 | EF5K0BTWZ37 |
Above 750 VA Micron crosses to EconoTRAN with a 230/460/575 V primary and 95/115 V secondary.
Square D D3, D20, D27: D3: 208 V to 120 V. D20: 208/230/460 V to 115 V. D27: 208/240/480 V to 120 V
Micron Group L: 208/230/460 V primary, 115 V secondary.
| VA | Square D | Micron |
|---|---|---|
| 50 VA | 9070T50D3, 9070T50D20, 9070T50D27 | B050MBT13XK |
| 75 VA | 9070T75D3, 9070T75D20, 9070T75D27 | B075MBT13XK |
| 100 VA | 9070T100D3, 9070T100D20, 9070T100D27 | B100MBT13XK |
| 150 VA | 9070T150D3, 9070T150D20, 9070T150D27 | B150MBT13XK |
| 200 VA | 9070T200D3, 9070T200D20, 9070T200D27 | B200MBT13XK |
| 250 VA | 9070T250D3, 9070T250D20, 9070T250D27 | B250MBT13XK |
| 300 VA | 9070T300D3, 9070T300D20, 9070T300D27 | B300MBT13XK |
| 350 VA | 9070T350D3, 9070T350D20, 9070T350D27 | B350MBT13XK |
| 500 VA | 9070T500D3, 9070T500D20, 9070T500D27 | B500MBT13XK |
| 750 VA | 9070T750D3, 9070T750D20, 9070T750D27 | B750MBT13XK |
| 1 kVA | 9070T1000D3, 9070T1000D20, 9070T1000D27 | EF1K0MBT13 |
| 1.5 kVA | 9070T1500D3, 9070T1500D20, 9070T1500D27 | EF1K5MBT13 |
| 2 kVA | 9070T2000D3, 9070T2000D20, 9070T2000D27 | EF2K0MBT13 |
| 3 kVA | 9070T3000D3, 9070T3000D20, 9070T3000D27 | EF3K0MBT13 |
| 5 kVA | 9070T5000D3, 9070T5000D20, 9070T5000D27 | EF5K0MBT13 |
D3 and D27 have a 120 V secondary. The Micron unit is 115 V. Check that your loads are fine at 115 V.
Square D D4, D51: D4: 277 V to 120 V. D51: 208/277 V to 120 V
Micron Group F: 208/277 V primary, 120 V secondary.
| VA | Square D | Micron |
|---|---|---|
| 50 VA | 9070T50D4, 9070T50D51 | B050MQ15XK |
| 75 VA | 9070T75D4, 9070T75D51 | B075MQ15XK |
| 100 VA | 9070T100D4, 9070T100D51 | B100MQ15XK |
| 150 VA | 9070T150D4, 9070T150D51 | B150MQ15XK |
| 200 VA | 9070T200D4, 9070T200D51 | B200MQ15XK |
| 250 VA | 9070T250D4, 9070T250D51 | B250MQ15XK |
| 300 VA | 9070T300D4, 9070T300D51 | B300MQ15XK |
| 350 VA | 9070T350D4, 9070T350D51 | B350MQ15XK |
| 500 VA | 9070T500D4, 9070T500D51 | B500MQ15XK |
| 750 VA | 9070T750D4, 9070T750D51 | B750MQ15XK |
Micron says consult the factory above 750 VA.
Square D D6, D17, D33: D6: 380 V to 110 V. D17: 415 V to 110 V. D33: 380/400/415 V to 115 x 230 V
Micron Group D: 380/400/415 V primary, 110 x 220 V secondary.
| VA | Square D | Micron |
|---|---|---|
| 50 VA | 9070T50D6, 9070T50D17, 9070T50D33 | B050RFD34XJ |
| 75 VA | 9070T75D6, 9070T75D17, 9070T75D33 | B075RFD34XJ |
| 100 VA | 9070T100D6, 9070T100D17, 9070T100D33 | B100RFD34XJ |
| 150 VA | 9070T150D6, 9070T150D17, 9070T150D33 | B150RFD34XJ |
| 200 VA | 9070T200D6, 9070T200D17, 9070T200D33 | B200RFD34XJ |
| 250 VA | 9070T250D6, 9070T250D17, 9070T250D33 | B250RFD34XJ |
| 300 VA | 9070T300D6, 9070T300D17, 9070T300D33 | B300RFD34XJ |
| 350 VA | 9070T350D6, 9070T350D17, 9070T350D33 | B350RFD34XJ |
| 500 VA | 9070T500D6, 9070T500D17, 9070T500D33 | B500RFD34XJ |
| 750 VA | 9070T750D6, 9070T750D17, 9070T750D33 | B750RFD34XJ |
D33 has a 115 x 230 V secondary. The Micron unit is 110 x 220 V. Micron says consult the factory over 750 VA.
Square D D7, D23: D7: 120 V to 24 V. D23: 120/240 V to 24 V
Micron Group C: 120 x 240 V primary, 24 V secondary.
| VA | Square D | Micron |
|---|---|---|
| 50 VA | 9070T50D7, 9070T50D23 | B050LP7JK |
| 75 VA | 9070T75D7, 9070T75D23 | B075LP7JK |
| 100 VA | 9070T100D7, 9070T100D23 | B100LP7JK |
| 150 VA | 9070T150D7, 9070T150D23 | B150LP7JK |
| 200 VA | 9070T200D7, 9070T200D23 | B200LP7JK |
| 250 VA | 9070T250D7, 9070T250D23 | B250LP7JK |
| 300 VA | 9070T300D7, 9070T300D23 | B300LP7JK |
| 350 VA | 9070T350D7, 9070T350D23 | B350LP7JK |
| 500 VA | 9070T500D7, 9070T500D23 | B500LP7JK |
| 750 VA | 9070T750D7, 9070T750D23 | B750LP7JK |
Square D D12, D31: D12: 480 V to 240 V. D31: 230 x 460 V to 115 x 230 V
Micron Group K: 240 x 480 V primary, 120 x 240 V secondary.
| VA | Square D | Micron |
|---|---|---|
| 50 VA | 9070T50D12, 9070T50D31 | B050PU1519JJ |
| 75 VA | 9070T75D12, 9070T75D31 | B075PU1519JJ |
| 100 VA | 9070T100D12, 9070T100D31 | B100PU1519JJ |
| 150 VA | 9070T150D12, 9070T150D31 | B150PU1519JJ |
| 200 VA | 9070T200D12, 9070T200D31 | B200PU1519JJ |
| 250 VA | 9070T250D12, 9070T250D31 | B250PU1519JJ |
| 300 VA | 9070T300D12, 9070T300D31 | B300PU1519JJ |
| 350 VA | 9070T350D12, 9070T350D31 | B350PU1519JJ |
| 500 VA | 9070T500D12, 9070T500D31 | B500PU1519JJ |
| 750 VA | 9070T750D12, 9070T750D31 | B750PU1519JJ |
| 1 kVA | 9070T1000D12, 9070T1000D31 | EF1K0BTZ1318 |
| 1.5 kVA | 9070T1500D12, 9070T1500D31 | EF1K5BTZ1318 |
| 2 kVA | 9070T2000D12, 9070T2000D31 | EF2K0BTZ1318 |
| 3 kVA | 9070T3000D12, 9070T3000D31 | EF3K0BTZ1318 |
| 5 kVA | 9070T5000D12, 9070T5000D31 | EF5K0BTZ1318 |
Above 750 VA Micron crosses to EconoTRAN, 230 x 460 V primary, 115 x 230 V secondary.
Square D D32: 230/460/575 V primary, 115 V secondary
Micron Group H: 230/460/575 V primary, 95/115 V secondary.
| VA | Square D | Micron |
|---|---|---|
| 50 VA | 9070T50D32 | B050BTW37XX |
| 75 VA | 9070T75D32 | B075BTW37XX |
| 100 VA | 9070T100D32 | B100BTW37XX |
| 150 VA | 9070T150D32 | B150BTW37XX |
| 200 VA | 9070T200D32 | B200BTW37XX |
| 250 VA | 9070T250D32 | B250BTW37XX |
| 300 VA | 9070T300D32 | B300BTW37XX |
| 350 VA | 9070T350D32 | B350BTW37XX |
| 500 VA | 9070T500D32 | B500BTW37XX |
| 750 VA | 9070T750D32 | B750BTW37XX |
| 1 kVA | 9070T1000D32 | E1K0BTWZ37 |
| 1.5 kVA | 9070T1500D32 | E1K5BTWZ37 |
| 2 kVA | 9070T2000D32 | E2K0BTWZ37 |
| 3 kVA | 9070T3000D32 | E3K0BTWZ37 |
Source: Micron Industries control transformer cross reference for Square D Class 9070 Type T (domestic), March 2018. Micron numbers through 750 VA are ImperviTRAN or ValuTRAN, 105°C construction; 1 kVA and up are EconoTRAN, 180°C. Linked Micron numbers open the part we list at the same VA and voltage group. Our listing can carry an added suffix letter (for example B150BTZ13JKF); we confirm the exact suffix on every quote. Square D codes not listed here (D13, D16, D18, D19, D21, D22, D24, D25, D36 to D59) have no standard Micron equivalent or need a factory check. Send the number.
How to read a Square D 9070T number
9070T is the Class 9070 Type T control transformer. The number after T is the VA. The D code is the voltage. Type TF adds primary and secondary fusing, and an SF suffix adds secondary fusing. 9070T250D1 is 250 VA, 230 x 460 V to 115 V. The Micron cross is B250BTZ13JK at the same VA. Tell us if you need fusing and we match it.
Common questions
What Micron transformer replaces Square D 9070T100D1?
Micron B100BTZ13JK, a 100 VA Group A ImperviTRAN unit. Primary 220x440, 230x460 or 240x480 V. Secondary 110, 115 or 120 V.
What replaces Square D 9070T50D1?
Micron B050BTZ13JK, 50 VA, Group A, 220x440/230x460/240x480 V primary, 110/115/120 V secondary.
What replaces a Square D D5 (600 V) control transformer?
Micron Group E, the WZ13XK series, for 50 to 750 VA: 550/575/600 V primary, 110/115/120 V secondary. 9070T100D5 crosses to B100WZ13XK.
Does Micron cross Square D Type TF fused transformers?
Yes. The cross sheet notes the Micron fuse block options. Send the 9070TF number and we match the primary and secondary fusing.
Get it crossed and quoted
Send the Square D number and the quantity. We send back the Micron part and lead time.
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More control transformer crosses: Acme TA-2 · Cutler-Hammer MTE · Siemens MT · GE 9T58 · HPS PT · Jefferson 636 · Sola/Hevi-Duty
Related: Micron control transformers by kVA · Control transformer VA sizing · Buck-boost sizing and cross · Micron · All cross references
Square D and Schneider Electric are trademarks of their owners. 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.