WAGO 859-802 DC-DC Converter, 24VDC to 10VDC, 0.5A

Technical Overview

DIN rail DC/DC converter: 24VDC input, 10VDC at 0.5A output. Features CAGE CLAMP, IP20, -25 to 55°C.

Key Features

DIN rail mountable (EN 60715) with a narrow 6 mm width.
CAGE CLAMP® connection technology for quick and secure wiring.
Input polarity protection.
Output short-circuit protection (temporary without damage for 1 minute).
High efficiency of typically 85%.
Wide operating temperature range of -25 °C to +55 °C.
IP20 protection rating.
Pollution degree 2.
Protection Class III.

Technical Specification Matrix

Parameter	Value
Nominal Input Voltage	DC 24 V
Input Voltage Range	DC 15 V ... 30 V
Nominal Output Voltage	DC 10 V
Output Voltage Range	±2 %
Nominal Output Current	0.5 A (500 mA)
Output Power Max	5 W
Efficiency (typ.)	85 %
Switching Frequency	20 kHz (nominal)
Protection Class	III
IP Rating	IP20 (per EN 60529)
Reverse Voltage Protection	Yes
Output Short-Circuit Protection	Yes (Temporary without damage for 1 minute)
Surrounding Air (Operating) Temperature	-25 °C ... +55 °C
Pollution Degree	2
Mounting Type	DIN-35 rail (EN 60715)
Connection Technology	CAGE CLAMP®
Solid Conductor	0.08 ... 2.5 mm² / 28 ... 14 AWG
Fine-Stranded Conductor	0.08 ... 2.5 mm² / 28 ... 14 AWG
Strip Length	5 ... 6 mm / 0.2 ... 0.24 inch
Signaling	1 x LED
Physical Weight (kg)	0.04
Dimensions L x W x H (cm)	9.1 x 0.6 x 5.6

Industrial Applications

1. Powering 10V Industrial Sensors in 24V Control Panels

In industrial automation systems, control panels typically operate on a 24 VDC supply, while many precision sensors (e.g., analog position sensors, pressure transducers) require a stable 10 VDC supply. The Wago 859-802 provides a compact and efficient solution to step down the 24 VDC to 10 VDC, ensuring proper operation of these sensors without requiring separate 10V power supplies, simplifying wiring and reducing panel space.

Problem Solved

Provides a dedicated, stable 10 VDC power source for sensitive industrial sensors directly from a common 24 VDC control system supply, eliminating the need for separate 10V power supplies and saving space.

24 VDC input10 VDC output0.5 ADIN railcompactindustrial sensor power

2. Integrating Legacy 10V Actuators into Modern 24V Systems

Older industrial machinery or specific actuators might still rely on a 10 VDC control voltage, while new control systems and PLCs standardize on 24 VDC. This DC/DC converter can serve as an interface to provide the necessary 10 VDC to these actuators, allowing for their integration into modern 24 VDC-based control architectures without extensive system redesign or replacement of functional legacy components. Its narrow 6mm width is crucial for fitting into existing, potentially space-constrained enclosures.

Problem Solved

Allows seamless integration of 10 VDC-dependent actuators or components into newer 24 VDC control systems by providing a reliable voltage conversion in a very small footprint.

24 VDC input10 VDC output0.5 Alegacy equipmentvoltage compatibilityDIN railnarrow profile

3. Distributed Power for Low-Power 10V Sub-Circuits in Harsh Environments

For distributed control architectures or remote I/O points in industrial environments (Pollution Degree 2, -25 to +55 °C operating temperature), small 10 VDC sub-circuits (e.g., local indication lights, small relays, or specialized low-power modules) might be required. The Wago 859-802, with its IP20 rating, robust operating temperature range, and DIN rail mounting, can provide a reliable, localized 10 VDC source directly from the main 24 VDC bus, minimizing voltage drops over long cable runs for sensitive components and offering protection features like short-circuit protection.

Problem Solved

Provides stable and protected 10 VDC power for localized, low-power sub-circuits in industrial environments, enhancing system reliability and reducing voltage drop issues.

24 VDC input10 VDC outputIP20-25 to +55 °Cdistributed powershort-circuit protectionindustrial environment