The Wöhner AES 3x38 – Article No. 31113 is a three-pole modular switch-disconnector fuse holder designed for cylindrical 10x38 mm fuses, suitable for low-voltage distribution systems up to 690 V AC.

Part of the professional Wöhner product range, this device ensures high operational reliability, safe switching performance, and robust mechanical construction, making it ideal for industrial applications, automation systems, and three-phase distribution panels.

The design allows safe manual isolation of the circuit and effective protection against overloads and short circuits using gG, aM, or equivalent fuse types.

⚙️ Technical Specifications

Brand: Wöhner
Model: AES 3x38
Article Number: 31 113
Type: Modular switch-disconnector fuse holder
Number of poles: 3
Fuse size: 10x38 mm
Mounting: DIN rail
Degree of protection: IP20 (when installed in enclosure)
Material: High-resistance self-extinguishing thermoplastic
Production: Made in Germany
Marking: CE

🔌 Electrical Data

• Rated current: 32 A

• Rated voltage: 400 V / 690 V AC

• Frequency: 50/60 Hz

• Utilization category: AC-22B

📜 Applicable Standards

• IEC 60947-3

• IEC 60269-2-1

🔄 Compatible Fuse Types

• gG (general purpose)

• aM (motor protection)

• aR / gR (subject to technical verification)

🔎 Function & Safety

The fuse holder allows:

✔ Quick fuse insertion and replacement
✔ Manual circuit disconnection
✔ Reliable protection against overcurrents
✔ High operational safety

The lever-operated mechanism ensures controlled opening and simplified maintenance, with a compact structure suitable for modular distribution boards.

🏭 Applications

✔ Three-phase industrial electrical panels
✔ Low-voltage distribution systems
✔ Motor line protection
✔ Photovoltaic systems (with appropriate fuses)
✔ Automation systems
✔ Commercial and manufacturing environments

🛠 Installation

• Standard DIN rail mounting

• Copper conductor connection according to IEC specifications

• Suitable for 10x38 mm fuses up to 32 A

• Tightening torque according to manufacturer instructions

📦 Condition

Used product in good cosmetic and structural condition.
Supplied as shown in the images.

✅ Advantages

✔ German Wöhner manufacturing quality
✔ Rated voltage up to 690 V AC
✔ Compact three-pole configuration
✔ High industrial reliability
✔ Easy maintenance
✔ Ideal for three-phase line protection