DIN EN 55014-2

• Purpose: To specify immunity requirements against electromagnetic disturbances for household appliances and power tools to ensure trouble-free operation in typical environments.

• Area of application: Appliances with rated current ≤16 A/phase, connected to mains ≤250 V (50/60 Hz). Examples: Washing machines, microwaves, power tools, personal care appliances.

• Exceptions: Medical devices, industrial equipment, vehicle/ship equipment.

• Frequency range: 0 Hz - 6 GHz (radiated interference).

• Tests: Electrostatic discharge (ESD), burst transients (EFT), surge, voltage dips.

• High-frequency interference fields (e.g. 80-6,000 MHz).

Content, area of application and tests:

Content:

EN IEC 55014-2 (CISPR 14-2) regulates the immunity of electrical equipment to external electromagnetic disturbances. It defines:

Test categories:

• Continuous disturbances: High frequency fields (e.g. mobile radio).

• Transient interference: Lightning strikes (surge), switching operations (burst).

Requirements:

• Devices must remain safe and functional after tests (performance criteria B/C).

• Updates 2021: Frequency range extension to 6 GHz, new tests for robots and network ports.

Area of application:

• Household and kitchen appliances (e.g. induction hobs, mixers).

• Electronic toys, automatic vending machines.

• Devices with radio modules (e.g. WLAN), unless covered by other standards.

• Not covered: Medical devices (EN 60601-1-2). Industrial equipment or equipment for special environments (e.g. near transmitting stations).

Tests:

Test conditions:

• Environment: EMC laboratories with defined shielding.

• Operating conditions:

• Worst-case load (e.g. maximum heating power).

• Tests at nominal voltage and frequency.

Execution:

• ESD: Discharges up to 8 kV (air) / 4 kV (contact) in accordance with IEC 61000-4-2.

• Burst transients: 5/50 ns pulses with 5 kHz repetition rate (IEC 61000-4-4).

• Surge: 1.2/50 μs pulses at mains connections (IEC 61000-4-5).

• High frequency fields: Field strengths up to 10 V/m (80-6,000 MHz).

Evaluation:

• Criterion B: Temporary malfunction with self-healing.

• Criterion C: Temporary failure, manual reset required.

Documentation:

• Logging of all malfunction events and limit value violations.

• Proof of design adjustments in the event of non-conformity (e.g. filter installation).

Alternative standards:

1. EN 55014-1: Emission requirements for household appliances (conducted/radiated disturbances).

2. EN 61000-6-1: Generic immunity requirements for residential environments.

3. CISPR 35: EMC requirements for multimedia equipment.

4. EN 55032: Combined emission/immunity tests for ICT equipment.

5. EN 60335-1: Safety requirements for electrical household appliances.