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Staco Energy Products is America's oldest and largest manufacturer of variable transformers, delivering precision voltage control solutions since 1937.
Parts that are not part of a series
Company background and product focus
Staco Energy Products Co., founded in 1937 and headquartered in Miamisburg, Ohio, is the oldest and largest manufacturer of variable transformers in the United States. With over 85 years of experience in the power industry, Staco has built a reputation for delivering reliable, high-quality power control solutions.
The company offers a comprehensive range of electrical products including:
Staco products are designed for controlling voltage, current, power, heat, speed, light, and electromechanical force across diverse industrial and laboratory applications. As a subsidiary of Components Corporation of America, Staco continues to support both legacy and modern products used worldwide.
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Product families from Staco Energy Products Company
| Series | Category | Parts | Status | Description |
|---|---|---|---|---|
| Series | Category | Parts | Status | Description |
|---|---|---|---|---|
| Test Equipment | 1 | Active | ||
| Variable Transformers | 2 | Active | ||
| Test Equipment | 5 | Active | ||
| Equipment | 5 | Active | ||
| Equipment | 3 | Active | ||
| Test and Measurement | 1 | Active | ||
| Variable Transformers | 3 | Active | ||
| Test Equipment | 3 | Active | ||
| Test Equipment | 4 | Active | ||
| Variable Transformers | 4 | Active |
Parts from Staco Energy Products Company that are not part of a series
| Part Information | Pricing (lowest) | Constant Current Load - Max | Constant Current Load - Max (Apparent Power) | Voltage - Output | Size Length | Size Width | Size Height | Type | Voltage - Supply | Output Type | Input Type | Voltage - Output (1) | Voltage - Output (3) | Voltage - Output (4) | Voltage - Output (2) |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
 Staco Energy Products Company VARIABLE, MOTOR DRIVEN, SINGLE PHASE, 50HZ / 60HZ, 120V, 120V | Sign in to see pricing | 10 A | 1.4 kVA | 120 V, 140 VAC | 5.57 " | 4.38 in | 4.16 " | Panel Mount | 120 VAC | Terminals | Terminals | — | — | — | — |
 Staco Energy Products Company VARIABLE, MOTOR DRIVEN, THREE PHASE, 50HZ / 60HZ, 240V, 280V | Sign in to see pricing | 10 A | 4.85 kVA | 240 V, 280 VAC | 6.14 in | 6 in | 14.59 in | Panel Mount | 240 VAC | Terminals | Terminals | — | — | — | — |
 Staco Energy Products Company VARIABLE, MOTOR DRIVEN, SINGLE PHASE, 50HZ / 60HZ, 120V, 140V | Sign in to see pricing | 10 A | 1.4 kVA | 120 V, 140 VAC | 6.31 in | 4.62 in | 4.44 " | Panel Mount | 120 VAC | Terminals | Terminals | — | — | — | — |
 Staco Energy Products Company VARIABLE, MOTOR DRIVEN, SINGLE PHASE, 50HZ / 60HZ, 240V, 280V | Sign in to see pricing | 3.5 A | 0.98 kVA | 240 V, 280 VAC | 5.57 " | 4.38 in | 4.16 " | Panel Mount | 120 VAC, 120VAC, 240VAC, 240 VAC | Terminals | Terminals | — | — | — | — |
 Staco Energy Products Company VARIABLE, MANUALLY OPERATED & MOTOR DRIVEN, SINGLE PHASE, 60HZ, 120V, 120V | Sign in to see pricing | 12 A | 1.44 kVA | 120 V | 5.57 " | 4.38 in | 4.16 " | Panel Mount | 120 VAC | Terminals | Terminals | — | — | — | — |
 Staco Energy Products Company VARIABLE, MANUALLY OPERATED & MOTOR DRIVEN, SINGLE PHASE, 50HZ / 60HZ, 240V, 240V | Sign in to see pricing | 5 A | 1.2 kVA | 240 V | 5.57 " | 4.38 in | 4.16 " | Panel Mount | 240 VAC | Terminals | Terminals | — | — | — | — |
 Staco Energy Products Company VARIABLE TRANSFORMER, SINGLE PHASE, 5AO, 0-240VO, 1.2KVA, CASED, BENCH ROHS COMPLIANT: YES | Sign in to see pricing | 5 A | 1.2 kVA | 240 V | 6.31 in | 4.62 in | 4.44 " | Panel Mount | 240 VAC | Terminals | Terminals | — | — | — | — |
Staco Energy Products Company VARIABLE TRANSFORMER, 3 PHASE WYE INPUT, 5AO, 0-480VO, 4.16KVA, CASED, BENCH ROHS COMPLIANT: YES | Sign in to see pricing | 5 A | 4.16 kVA | 480 VAC | 6.88 " | 6 in | 14.88 " | Panel Mount | 480 VAC | Terminals | Terminals | — | — | — | — |
Staco Energy Products Company VARIABLE, MANUALLY OPERATED & MOTOR DRIVEN, SINGLE PHASE, 50HZ / 60HZ, 120V, 120V | Sign in to see pricing | 15 A | 2.1 kVA | 120 V, 140 VAC | 6.81 " | 6.12 " | 4.25 " | Panel Mount | 120 VAC | Terminals | Terminals | — | — | — | — |
 Staco Energy Products Company VAR XFMR 120/140/240/280VAC 15A | Sign in to see pricing | 15 A | 4.2 kVA | — | 7.07 " | 7.25 " | 9.81 " | Panel Mount | 120 VAC, 120VAC, 240VAC, 240 VAC | Terminals | Terminals | 120 VAC | 240 V | 280 VAC | 140 VAC |