描述

The 704.901.4 is a snap-action switching element designed for low-voltage switching applications, featuring two normally closed (2 NC) contacts with self-cleaning gold-silver contact material. It is rated for 500 V AC at 10 A switching capacity with a rated impulse withstand voltage of 4 kV according to EN/IEC 60947-5-1, and supports DC13 and AC15 duty cycles across multiple voltage ratings from 24 V to 500 V. The device incorporates a double-break snap-action mechanism with an operating force of approximately 1.9 N for normally closed contacts, operates reliably over a temperature range of -40°C to +55°C, and has an electrical lifetime of 50,000 cycles. It features a screw terminal connection with a maximum wire cross-section of 2 mm × 2.5 mm² and complies with international standards including EN IEC 60947-5-1, CB, UL, and VDE certifications. This switching element is suitable for industrial control, automation, and instrumentation applications where reliable contact switching and long operational life are required, though it is noted as not recommended for new designs with a successor product available.