Bosch doorstromer 21kW 484x236x106 TR400115/18/21EB

The Bosch TR400115/18/21EB is a high-performance instantaneous water heater designed for multiple tap points, delivering 21 kW of power for a continuous hot water supply. With electronic control and bare wire heating technology, it ensures precise temperature stability and energy efficiency.

Advantages

Energy efficiency class A helps reduce electricity consumption. Compact dimensions (484x236x106 mm) allow flexible wall-mounted installation. IP25 protection rating makes it suitable for installation in splash zones. Electronic control maintains a constant temperature even with fluctuating water pressure.

Suitable for

• Showers, washbasins, and kitchen sinks
• Households with multiple simultaneous hot water demands
• New installations or replacement of old tank heaters

Key specifications

• Power: 21 kW
• Voltage: 400 V (3-phase)
• Current: 30.3 A
• Energy efficiency class: A
• Temperature range: 20-60 °C
• Min. flow rate for activation: 2.5 l/min
• Max. flow rate (ΔT=25K): 12.0 l/min
• Max. operating pressure: 10 bar
• Water connection: G 1/2"
• Protection class: IP25
• Dimensions (WxHxD): 484x236x106 mm
• Colour: White

Recommendations

For optimal performance, ensure the electrical installation is carried out by a qualified professional. This unit requires a 3-phase power supply. Suitable for pressure-resistant systems only.