Wholesale BK Series Control Transformers – Reliable Power Solutions Factory, Company

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Wholesale BK Series Control Transformers – Reliable Power Solutions Factory, Company

BK Series control transformers deliver stable, efficient power conversion for industrial applications. Designed with advanced technology, they ensure safe, reliable operation in AC circuits up to 1200V. Ideal for machine tool controls, work lighting, and signal systems. These transformers are compact, energy-saving, and built for easy installation with secure terminal connections. Suitable for 50–60 Hz frequency environments. Optimized for performance, durability, and wide compatibility, the BK series provides a dependable power supply solution for various electrical setups without unnecessary complexity or high maintenance needs.

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Product Description

Type Designation

1	Single-phase
2	Control transformer
3	Rated capacity (VA)

Product Features

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Advanced design ensures high performance and operational reliability

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Energy-efficient construction reduces power consumption

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Compact size saves valuable installation space

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Secure terminal block connections enable safe and simple wiring

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Wide applicability across AC circuits up to 1200V, 50–60 Hz

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Suitable for machine tool control, lighting, and signal systems

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Durable build offers long service life with minimal maintenance

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Low heat generation maintains stable performance under load

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Easy to integrate into existing electrical configurations

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Manufactured with precision for consistent voltage transformation

Technical Parameters

Parameter	Unit	Value
Input Voltage	V	110 / 220 / 380 / 400 / 660 (others customizable)
Output Voltage	V	6 / 12 / 24 / 36 / 48 / 110 / 127 / 220 / 380 (others customizable)
Voltage Accuracy	%	±1
Waveform Distortion	-	None (compared to input)
Voltage Regulation	%	<1.5
Insulation Class	-	Class F (High Temperature Resistant)
Insulation Resistance	MΩ	>150
Efficiency	%	Induction type 99.7%, Isolation type 95%
Dielectric Strength	VAC (1min)	3000
Overload Capacity	-	Up to 1.2 times rated load
Design Life	years	20
Noise	dB	<35 (within 1 meter)
Cooling Method	-	Dry-type Air Cooling
Temperature Rise	°C	<60
Connection Method	-	Y, YynO, D, yll, D, dO

Product Display

BK Series Control Transformer front view

Type Designation & Dimensions

BK Series Control Transformers Dimensions View

Model	External Dimensions (mm)			Installation Dimensions (mm)
Model	Bmax	Dmax	Emax	K	J
BK-50VA	85	80	92	65	60
BK-100VA	103	90	110	75	64
BK-150VA	103	98	110	75	74
BK-200VA	103	105	110	75	77
BK-250VA	114	122	125	90	90
BK-300VA	114	127	125	90	95
BK-400VA	132	130	142	94	97
BK-500VA	132	135	142	94	102
BK-700VA	150	140	175	127	115
BK-1000VA	150	155	175	127	130
BK-1500VA	171	175	190	130	150
BK-2000VA	171	195	190	130	170

Frequently Asked Questions

Q: What is the primary function of a single-phase control transformer?

Single-phase control transformers are mainly engineered for stepping down or stepping up AC voltages to power control circuits, lighting, signal systems, and electronics within industrial machinery and automated equipment.

Q: Are custom input and output voltage configurations available?

Yes, while standard options range from 110V to 660V for input and 6V to 380V for output, custom voltage ratings and multiple tapping options can be manufactured according to specific project requirements.

Q: What insulation class is used, and how does it benefit equipment life?

The unit is manufactured with Class F insulation, providing high temperature resistance and an insulation resistance of >150 MΩ. This thermal endurance supports a reliable 20-year design life under proper operating conditions.

Q: How is heat dissipation managed in this transformer series?

The transformer relies on dry-type air cooling (natural air convection) with low heat generation, ensuring that the temperature rise remains strictly under 60°C during continuous standard operation.

Q: What is the operational noise level during regular operation?

Engineered with high-grade precision laminations, the transformer operates quietly with operational noise measured below 35 dB within a 1-meter radius, making it well-suited for noise-sensitive industrial setups.

Wholesale BK Series Control Transformers – Reliable Power Solutions Factory, Company

Product Description

Type Designation

Product Features

Technical Parameters

Product Display

Type Designation & Dimensions

Frequently Asked Questions

Q: What is the primary function of a single-phase control transformer?

Q: Are custom input and output voltage configurations available?

Q: What insulation class is used, and how does it benefit equipment life?

Q: How is heat dissipation managed in this transformer series?

Q: What is the operational noise level during regular operation?

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