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| PartNumber | M1210B-2 | M1210B-3 | M1210B |
| Description | Industrial Control Transformers 0-240V out 12A 240Vin Single Phase | Industrial Control Transformers 0-240V out 12A 240Vin 3-Phase Wye | Industrial Control Transformers 0-120V out 12A 120Vin Single Phase |
| Manufacturer | Staco | Staco | Staco |
| Product Category | Industrial Equipment | Industrial Equipment | Industrial Equipment |
| Series | 1200 | 1200 | 1200 |
| Product | Industrial Control Transformers | Industrial Control Transformers | Industrial Control Transformers |
| Type | Variable Transformers | Variable Transformers | Variable Transformers |
| Unit Weight | 34 lbs | 46 lbs | 22 lbs |
| Mounting Style | Chassis | Chassis | Chassis |
| Height | 152.4 mm | 152.4 mm | 152.4 mm |
| Length | 261.9 mm | 384.2 mm | 139.7 mm |
| Width | 188.8 mm | 188.8 mm | 188.8 mm |
| Power Rating | 2.49 kV 2.88 kV | 4.96 kV | 1.44 kV |
| Primary Voltage Rating | 120 V 240 V | 240 V | 120 V |
| Secondary Voltage Rating | 0 V to 120 V/140 V 0 V to 240 V/280 V | 0 V to 240 V | 0 V to 120 V |
| Secondary Current Rating | 12 A | 12 A | 12 A |
| Operating Frequency | 60 Hz | 60 Hz | 60 Hz |