
PRODUCT OVERVIEW
The Cooperheat 50kVA Mannings Transformer Power Unit is a durable and cost-effective three-phase power solution designed for reliable industrial heat treatment applications. Renowned worldwide for quality and dependability, Mannings transformer units have been successfully used in demanding climates and industrial environments for over 70 years. This compact yet robust unit delivers precise power and temperature control, making it ideal for both manual and automated heat treatment operations.
Product description
The Cooperheat 50kVA Mannings Transformer Power Unit is engineered to provide stable and efficient power for a wide range of industrial heat treatment and resistance heating processes. At its core is a rugged natural air-cooled three-phase transformer, enclosed within a compact and heavy-duty steel case. This design ensures excellent durability, efficient cooling without complex systems, and a long operational life even in harsh working environments.
Each output channel is independently regulated by an internal energy regulator working in parallel with a digital temperature controller. This dual-control configuration enables accurate management of heating power and precise temperature control, ensuring consistent and repeatable heat treatment performance across multiple zones.
For enhanced flexibility, the unit includes provisions for connection to compatible external programmer or control units, allowing integration into automated heat treatment systems. Operators can easily switch between internal manual control and external automatic control modes via dedicated auto/manual selector switches on each channel. This adaptability makes the unit suitable for both standalone operation and fully automated process control.
With a proven reputation built over more than 70 years of global operation, the Cooperheat 50kVA Mannings Transformer Power Unit offers a reliable, versatile, and cost-effective solution for engineers requiring robust transformer-based power units capable of performing in the most demanding industrial heat treatment environments.
Product specifications
Transformer core
- Three Phase, Air Natural, Class ‘H’, 50kV.
- Primary winding connected in Delta.
- Secondary winding connected in Starm.
Primary supply
- Primary voltage: 380V, 415V, 440V.
- Primary current: 76A, 70A, 66A.
- Frequency: 50/60 Hz.
Protection
- Three phase 100A circuit breaker with shunt trip.
- Three primary core winding over temperature thermostats linked to circuit breaker shunt trip.
Secondary outputs
- Output: 65V.
- 6 temperature controlled output channels.
- Max load per output channel: three 60V, 2.7kW heating elements.
- Maximum current per output channel: 135A.
- Auxiliary Output: Two 110V, 5A, 50/60Hz fused output sockets.
Switching
- Contactorised – six off 200A, 110V a.c. solenoid contactors.
Control
- Six 110V Energy Regulators.
- Six 110V Temperature Controllers.
- One Multi-pin socket for remote programmer.
- Mode Selection: Six Auto/Manual switches.
- Indicators: Six 110V neon channel indicators.
Construction
- Case: Robust sheet steel case complete with four 150mm diameter wheels.
- Lifting Method: Fork lift under base.
Mains connection
- The units are complete with 4.5m of four core primary cable.
Dimensions
- Weight: 302kg.
- Height: 1010mm.
- Width: 675mm.
- Depth: 725mm.
Product resources
Frequently asked questions
What is the Cooperheat 50kVA Mannings Transformer Power Unit used for?
The Cooperheat 50kVA Mannings Transformer Power Unit is used to supply controlled three-phase power for industrial heat treatment and resistance heating applications. It is suitable for processes such as post-weld heat treatment, stress relieving, and other controlled thermal operations in demanding industrial environments.
How does the Mannings transformer unit control power and temperature?
Each output channel is managed by an internal energy regulator operating alongside a digital temperature controller. This arrangement allows precise adjustment of heating power and accurate temperature regulation to ensure consistent heat treatment results.
Can the 50kVA Mannings Transformer Power Unit be integrated with external control systems?
Yes, the unit is designed to connect with compatible external programmer or control units. This allows automated heat treatment control, enabling seamless integration into advanced process control systems for improved efficiency and monitoring.
What makes the Cooperheat Mannings transformer units reliable for harsh environments?
Mannings transformer units have been used worldwide for over 70 years in demanding climates and industrial settings. Their robust natural air-cooled transformer design, strong steel enclosure, and proven engineering ensure long service life, dependable performance, and cost-effective operation even in challenging conditions.


