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Pactrol

UKControls & Actuators

Pactrol is a manufacturer of combustion control components, primarily known for its range of burner control relays and associated safety devices. The brand's product line centers on the MA series of burner control units, which are designed to manage the sequence of operations in oil-fired and gas-fired combustion systems. These controls are integral to the safe and efficient operation of industrial burners, providing functions such as prepurge, pre-ignition, post-ignition, and safety lockout. The MA series includes models like the MA 26, MA 28, MA 29, MA 41, MA 45, MA 52, MA 55, and MA 610, each tailored to specific burner capacities and operational requirements. For instance, the MA 41 is rated for combustion systems up to 350 kW and supports dual solenoid valve control, while the MA 52 handles fuel flows under 30 kg/h with an 85W motor. The MA 610 accommodates single-phase or three-phase operation at 220V or 380V, making it suitable for larger industrial setups. These relays are built to meet rigorous safety standards, incorporating features such as false light protection and external alarm outputs, which are critical for preventing hazardous conditions in combustion environments. Pactrol's components are typically rated for 220–240V AC, 50–60 Hz operation, with some models offering flexibility for different voltage and phase configurations. The brand is recognized in the industry for its focus on reliability and precision, with products that are designed to integrate seamlessly into existing burner management systems. 3G Electric supplies a comprehensive range of Pactrol burner controls, ensuring that plant engineers and maintenance managers can source the exact relay model needed for their specific burner applications. With global shipping, 3G Electric provides access to these essential components, supported by technical specifications and responsive customer service to assist with selection and procurement. Whether upgrading an existing system or replacing a faulty relay, the Pactrol MA series offers a dependable solution for combustion control.

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About Pactrol

Pactrol is a manufacturer of combustion control components, primarily known for its range of burner control relays and associated safety devices. The brand's product line centers on the MA series of burner control units, which are designed to manage the sequence of operations in oil-fired and gas-fired combustion systems. These controls are integral to the safe and efficient operation of industrial burners, providing functions such as prepurge, pre-ignition, post-ignition, and safety lockout. The MA series includes models like the MA 26, MA 28, MA 29, MA 41, MA 45, MA 52, MA 55, and MA 610, each tailored to specific burner capacities and operational requirements. For instance, the MA 41 is rated for combustion systems up to 350 kW and supports dual solenoid valve control, while the MA 52 handles fuel flows under 30 kg/h with an 85W motor. The MA 610 accommodates single-phase or three-phase operation at 220V or 380V, making it suitable for larger industrial setups. These relays are built to meet rigorous safety standards, incorporating features such as false light protection and external alarm outputs, which are critical for preventing hazardous conditions in combustion environments. Pactrol's components are typically rated for 220–240V AC, 50–60 Hz operation, with some models offering flexibility for different voltage and phase configurations. The brand is recognized in the industry for its focus on reliability and precision, with products that are designed to integrate seamlessly into existing burner management systems. 3G Electric supplies a comprehensive range of Pactrol burner controls, ensuring that plant engineers and maintenance managers can source the exact relay model needed for their specific burner applications. With global shipping, 3G Electric provides access to these essential components, supported by technical specifications and responsive customer service to assist with selection and procurement. Whether upgrading an existing system or replacing a faulty relay, the Pactrol MA series offers a dependable solution for combustion control.

Common Applications

  • Industrial boiler systems — Pactrol Relay MA 41 for burners up to 350 kW with dual solenoid control
  • Commercial heating plants — Pactrol Relay MA 55 for oil burner safety and lockout protection
  • Process heating equipment — Pactrol Relay MA 52 for fuel flows under 30 kg/h with motor and alarm outputs
  • Large-scale combustion units — Pactrol Relay MA 610 for three-phase operation at 380V with flame cell monitoring
  • Small burner installations — Pactrol Relay MA 26 for compact single-phase control at 220V
  • Multi-stage burner systems — Pactrol Relay MA 45 for sequencing with prepurge and post-ignition
Origin: Manufactured in UK

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Frequently asked questions

Common questions about Pactrol from 3G Electric.

What is the function of the Pactrol Relay MA 55 in an oil burner control system?

The Pactrol Relay MA 55 is an oil burner control unit that manages the sequence of operations for safe ignition and flame monitoring. It includes a solenoid valve, prepurge, pre- and post-ignition timing, false light protection, and safety lockout. Operating at 220–240V, 50–60 Hz, it ensures that the burner starts and shuts down in a controlled manner, preventing fuel accumulation and potential explosions. The safety lockout feature halts operation if a fault is detected, requiring manual reset, which is essential for compliance with combustion safety standards.

Which Pactrol MA series relay is suitable for burners up to 350 kW?

The Pactrol Relay MA 41 is designed for industrial combustion systems up to 350 kW. It provides prepurge and pre- and post-ignition sequencing, along with dual solenoid valve control, which is necessary for burners with two-stage fuel supply. This model ensures proper air purging before ignition and maintains safe operation during the combustion cycle. It is a common choice for medium-capacity oil and gas burners in industrial boilers and process heaters.

What are the electrical specifications of the Pactrol Relay MA 610?

The Pactrol Relay MA 610 operates on single-phase or three-phase power at 220V or 380V, 50 Hz. It is designed for larger combustion systems and requires a flame cell type 8206 with a minimum cell illumination level to detect the flame. The relay has an equipment power consumption of 8 VA, making it suitable for control panels with limited power budgets. Its versatility in voltage and phase configurations allows integration into various industrial electrical systems.

How does the Pactrol Relay MA 52 handle fuel flow and motor control?

The Pactrol Relay MA 52 is built for combustion systems with fuel flow rates under 30 kg/h. It features an 85W motor operating at 2830 rpm, which drives the fuel pump or air fan, and a 220V solenoid valve rated at 1A maximum for fuel shutoff. The relay also includes an external alarm output rated at 2A, allowing connection to remote monitoring systems. This model is suitable for smaller industrial burners where precise fuel metering and motor control are required.

What is the difference between the Pactrol MA 26 and MA 29 relays?

Both the MA 26 and MA 29 are miniature burner control relays from the Pactrol MA series, designed for compact applications. The MA 26 operates on single-phase 220V (+10% -15%) at 50 Hz, with a rated power suitable for small motors and solenoid valves. The MA 29 is also a miniature series model, but it may have different timing parameters or output ratings. Specific differences in prepurge time, ignition sequence, or load capacity should be verified against the technical datasheet for each model to ensure correct selection for the burner's requirements.

Does 3G Electric supply Pactrol products?

Yes — 3G Electric (S) Pte. Ltd. supplies Pactrol products. We stock the Pactrol catalog and supply genuine factory-original products with full manufacturer warranty and technical support.