TELE OVP1 VDE0435

Hele OVP 1 Manual Override Module

Description

The Hele OVP 1 is a robust and reliable manual override module designed for DIN rail mounting in control cabinets. It is primarily used in building automation and HVAC systems to manually control or override 0-10V DC analog signals. The unit features a clear three-position switch for selecting between ‘Automatic’, ‘0’ (Off), and ‘Hand’ (Manual) modes. In manual mode, the output can be precisely set using the integrated 0-10V potentiometer. A built-in relay provides additional switching capability for status feedback or interlocking functions.

Specifications

• Manufacturer: Hele
• Model: OVP 1
• Power Supply (A1, A2): 24V AC/DC
• Analog Input (YR): 0-10V DC
• Analog Output (Y): 0-10V DC
• Relay Output (B1, B2): 28V / 2A
• Mounting: DIN Rail
• Control Interface: 3-position switch (AUTO/0/HAND) and 0-10V potentiometer

Label Info

• VDE 0110 IGr. C/250
• VDE 0435

Application

Ideal for applications requiring manual intervention in automated processes, such as forcing dampers open, setting fan speeds, or controlling valve positions during maintenance or commissioning of HVAC systems.

CO2 Impact

By purchasing this pre-owned module, you are contributing to a circular economy and avoiding approximately 4.0 kg of CO2 emissions associated with the production of a new unit. This saving is comparable to the emissions from driving an average car for 20 kilometers.

Availability

This is a legacy component but is available from our stock. It is a tested, functional unit, ideal for spare parts or replacing a defective module in an existing installation. Order now from spareparts2day for expert support and fast delivery.

FAQ

What is the function of the ‘0’ position on the selector switch?

The ‘0’ position forces the analog output signal (Y) to 0V, effectively shutting down the controlled device, such as closing a valve or stopping a fan, regardless of the potentiometer setting.

Can the relay output (B1/B2) be used to switch a mains voltage load?

No, the relay is rated for 28V / 2A. It is intended for low-voltage signaling or control circuits, not for switching mains voltage (e.g., 230V AC).

Is this module a direct replacement for any other brand’s override unit?

While not a direct drop-in replacement, the Hele OVP 1 provides a standard 0-10V override function common in building automation. It can functionally replace similar modules from other brands, but wiring terminals may differ, so checking the device schematic is essential.

Last Update: March 13, 2026

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