Operating Instructions STBW 225
May 2022
Seite 1
ENGELCONTROL
®
Safety Temperature Limiter
with Temperature Monitor
Type STBW 225 / RTKSA-011.210
for Electric Air Heaters
in Air Conditioning and Ventilation
Notes on Operating Instructions
Please read these operating instructions carefully and observe the relevant country-specific standards, safety
regulations and accident prevention regulations.
The assembly instructions must be kept available during the lifetime of the device.
Passing on and duplicating this document, exploiting and communicating its contents are prohibited, unless
expressly permitted. All rights reserved in the event of patent, utility model or design registration.
The following warnings are used in this manual:
Immediate danger from electrical voltage
Failure to do so can result in serious injury, death, or property damage
have as a consequence.
Possible Danger
Non-observance can result in serious injuries or damage to property.
1. Safety Instructions
Assembly, electrical installation, commissioning and maintenance of the temperature limiter
may only be carried out by a qualified electrician. The instructions in this manual must be
understood, observed and followed. He is responsible for ensuring that the device is correctly
connected in accordance with the electrical connection diagrams.
The device is maintenance-free.