Air Conditioning Water Heater Relay SFK-112DM 36V Switching Voltage for Household Appliances

This relay is a dedicated component designed for switching duties in air conditioning and water heater control circuits. With a contact switching voltage of ≤36V, it operates safely within the low-voltage range typical of modern household appliances. The relay is available in three models—SFK-112DM, SFK-112DMP, and SFK-112DM-E—allowing you to select the right option for your specific application. Whether you are repairing an HVAC unit or maintaining a water heater, this relay provides consistent switching performance.

Features and Construction

The relay is built for straightforward integration into appliance control boards. Its compact design and standard mounting facilitate installation in existing setups.

Model Variations

Choose from SFK-112DM, SFK-112DMP, or SFK-112DM-E depending on your circuit requirements. Each model shares the same maximum switching voltage of 1 and contact switching voltage of ≤36V.

Electrical Specifications

The rated voltage options include 112DM, 112DM E, and 112DMP. Maximum switching current can be selected from 1, 2, or 3, allowing the relay to match the load requirements of your air conditioner or water heater.

Uses and Placement

This relay is intended for use within household appliance control systems, particularly those found in air conditioning units and water heaters.

Air Conditioning Applications

In air conditioning systems, the relay manages switching functions such as compressor control or fan operation within the specified low-voltage range.

Water Heater Applications

For water heaters, the relay provides reliable switching for heating elements or control circuits, supporting consistent operation.

Benefits and Buying Value

This relay offers a practical replacement or upgrade option for technicians maintaining household appliances.

Simple Replacement

With multiple model variants available, you can select the exact specification needed for your repair, minimising installation effort.

Low-Voltage Safety

The ≤36V contact switching voltage reduces risk in low-voltage control circuits, making it a safe choice for DIY and professional use.