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Open core control transformers are a practical low-cost option for high-inrush applications, such as contactors or solenoid valves, that require reliable output voltage stability. This inrush current caused by these inductive loads has no adverse effect on the transformer.
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Open Core Industrial Control Transformers
Category Selection
Control transformers offer a cost-effective means of stepping down voltage in order to power low-voltage control devices. Open core control transformers provide a ventilated solution with reliable output voltage stability for high inrush applications. Select models comply with safety standards for SELV (Safety Extra Low Voltage) circuits. Typical loads for open core and coil transformers include lighting, HVAC circuits, signal and alarm systems, motor control circuits, machine tools, and circuit isolation.
For part listings and specifications, go to Shop Now
HPS Spartan Open Core Control Transformers
HPS (Hammond Power Solutions) Spartan open core control transformers offer an efficient and economical solution, ideally suited for general-purpose, industrial, and light-duty load applications where lower inrush and less demanding environmental protections are required.
- 50 to 5000 VA (depending on series)
- PR Series - 120 x 240 VAC to 12 x 24 VAC
- SP Series - 208 x 416 VAC to 120 x 240 VAC
- MQMJ Series - 240 x 480 VAC to 120 x 240 VAC
- ACP Series - 480 x 600 VAC to 120 x 240 VAC
- 1-phase
- 50/60 Hz (ACP series is 60 Hz only)
- 15 year warranty
Starting at
$55.00
(SP50MQMJ)
Murrelektronik Open Core Control Transformers
Murrelektronik open core control transformers provide a flexible solution for adapting a wide range of input voltages. Their universal input provides eleven different voltage options from 208 to 550 VAC that are easily configurable using simple quick-connect jumpers. These versatile transformers offer time and cost savings by allowing OEMs and system integrators to standardize on a single model for a variety of applications.
- 100 to 6300 VA
- Universal 208/230/380/400/420
/440/460/480/500/525
/550 VAC primary - 115/230 VAC secondary
- 1-phase
- 50/60 Hz
- Panel mount (DIN rail options for 100 and 160 VA models)
- Electrostatic shield for noise reduction
- IP20 finger-safe terminal connections
Starting at
$93.00
(86143)
BLOCK CT Series Open Core Control Transformers
New!
BLOCK CT series open core control transformers are ideal for a variety of general-purpose and industrial applications. Specifically engineered for isolation, lighting, or signal systems, the CT series provides a cost-effective solution and a rugged design to guarantee uninterrupted power delivery.
- 50 to 2500 VA
- 240/480 or 600 VAC primary
- Jumpers included for primary voltage selection on select units
- 24 or 120 VAC secondary
- Fused versions available
- 1-phase
- 50/60 Hz
- Panel mount
- IP00 protection rating
- Made in USA
Starting at
$53.00
(CT-005-060-24-0)
BLOCK USTE Series Voltage Control/Isolating Transformers
New!
BLOCK USTE series open core control transformers offer a versatile solution for a large range of input voltages, allowing OEMs and system integrators to save time and reduce costs by standardizing on a single model. They provide thirteen configurable inputs from 208 to 600 VAC. In addition, the 12/24 VAC models comply with safety standards to ensure a safe power supply for SELV (Safety Extra Low Voltage) circuits.
- 40 to 3200 VA
- 208/230/380/400/415
/440/460/480/500/525
/550/575/600 VAC primary - 12/24 or 115/230 VAC secondary options
- Low inrush current
- 1-phase
- 50/60 Hz
- Tool-free push-in wire terminals
- DIN rail (up to 250 VA) and panel mount
- IP00 protection rating
Starting at
$64.00
(USTE40/2X12)
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