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VA7975 ABB 75 W Anti-Condensation Heater 110–240 V AC/DC
ABB VA7975 is a 75 W PTC anti-condensation heater operating from 110–240 V AC/DC with 35 mm DIN rail mounting for temperature management in compatible industrial electrical enclosures.
£200.75
Why Choose the ABB VA7975 75 W Anti-Condensation Heater?
The ABB VA7975 is a 75 W anti-condensation heater designed for temperature management in compatible ABB IS2 and AM2 industrial electrical enclosures. Operating from 110–240 V AC/DC, it helps prevent condensation from forming inside cabinets where changes in temperature and humidity could otherwise expose electrical and automation equipment to moisture.
The VA7975 uses a PTC thermistor heating element installed in an aluminium-alloy heat spreader. PTC technology automatically changes its impedance according to operating temperature, providing intrinsically stable heater behaviour while its tubular heat-spreader geometry promotes effective natural heat transfer within the enclosure.
Designed for straightforward panel installation, the VA7975 uses snap-on mounting to a 35 mm DIN rail and requires a thermostat for temperature control. ABB specifies an inrush current of 2.0–2.5 A, a recommended 2 A fuse / C6 MCB and a net weight of approximately 0.40 kg.
Key Advantages
- 75 W heating output helps prevent condensation inside industrial electrical cabinets.
- Wide 110–240 V AC/DC supply range supports flexible enclosure installations.
- PTC thermistor technology provides intrinsically stable heating characteristics.
- Aluminium-alloy heat spreader promotes efficient natural heat transfer.
- Snap-on 35 mm DIN rail mounting simplifies installation within control panels.
- Designed for temperature management in compatible ABB IS2 and AM2 enclosure applications.
Key Features
- ABB VA7975 anti-condensation heater.
- Rated heating power of 75 W.
- Supply voltage of 110–240 V AC/DC.
- Self-regulating PTC thermistor heating element.
- Aluminium-alloy heat-spreader construction.
- Natural-convection heating without an integrated fan.
- Electrical absorption remains comparatively stable across its operating supply range.
- Snap-on installation on 35 mm DIN rail.
- Requires a separate thermostat for temperature control.
- Designed for IP20 electrical switchboard applications.
Condensation Control for Industrial Electrical Enclosures
Condensation can develop inside electrical cabinets when enclosure surfaces or internal air fall below the dew point. Maintaining a controlled temperature above the surrounding dew point helps reduce moisture formation and protects sensitive electrical, electronic and automation equipment from the adverse effects associated with condensation.
The ABB VA7975 uses PTC heating technology to provide 75 W of natural-convection heating within a compact DIN rail-mounted package. The PTC element's impedance changes with temperature, while the aluminium-alloy heat spreader transfers heat efficiently to the surrounding enclosure air. ABB specifies that the heater should be used with a suitable thermostat to control enclosure temperature.
Typical Applications
- ABB IS2 industrial automation enclosures.
- ABB AM2 industrial cabinets.
- Control panels exposed to temperature and humidity variations.
- PLC, instrumentation and machine-control cabinets.
- Industrial switchboards requiring condensation prevention.
- Electrical enclosures containing moisture-sensitive equipment.
Technical Specifications
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| Heating Output (W) | 75 W | |
|---|---|---|
| Device Type | Convection heater (PTC) | |
| ABB order code | VA7975 | |
| ABB product group | 321506-Turati - Is | |
| Product type | Anti-condensation enclosure heater | |
| Heating technology | PTC thermistor | |
| Rated power | 75 W | |
| Supply voltage | 110–240 V AC/DC | |
| Inrush current | 2.0–2.5 A | |
| Recommended fuse | 2 A | |
| Recommended MCB | C6 | |
| Mounting | Snap-on 35 mm DIN rail | |
| Heat spreader | Aluminium alloy | |
| Cooling / airflow | Natural convection | |
| Thermostat | Required | |
| Product net height | 150 mm | |
| Product net width | 42 mm | |
| Product net depth | 42 mm | |
| Product net weight | 0.40 kg | |
| Package quantity | 1 piece |
Frequently Asked Questions
What is the ABB VA7975 used for?
The ABB VA7975 is a 75 W anti-condensation heater used to raise the internal temperature of compatible electrical enclosures and help prevent moisture from condensing on equipment.
What voltage does the ABB VA7975 operate at?
The VA7975 is designed for a supply voltage of 110–240 V AC/DC.
What are the dimensions of the ABB VA7975?
The VA7975 measures approximately 150 × 42 × 42 mm (H × W × D) and has a net weight of approximately 0.40 kg.
How is the ABB VA7975 installed?
The VA7975 uses snap-on mounting on a standard 35 mm DIN rail, allowing straightforward installation within compatible industrial electrical cabinets.
Does the ABB VA7975 require a thermostat?
Yes. ABB specifies that the VA7975 requires a thermostat so that enclosure heating can be controlled according to the required internal temperature.
Genuine ABB Enclosure Temperature Management
The ABB VA7975 combines 75 W PTC heating, a 110–240 V AC/DC supply range and compact 35 mm DIN rail mounting to provide a purpose-designed anti-condensation solution for compatible industrial electrical and automation enclosures.
