EATON Main Switch 63/3 EVU Lockable ZSD-S63/3/E (281915)

Electricians and panel builders installing a utility-approved main switch in a residential or commercial distribution board will appreciate the EATON ZSD-S63/3/E. This 3-pole main switch is rated at 63 A and designed for DIN rail mounting, providing a reliable means of isolation for the entire installation. Its EVU-lockable feature allows the utility company to secure the switch in the off position, preventing unauthorized reconnection during maintenance or in case of non-payment.

Key specifications

• Rated current: 63 A
• Number of poles: 3
• Rated operational voltage: 230/400 V AC
• Rated frequency: 50/60 Hz
• Mounting type: DIN rail (EN 60715)
• Module width: 3 TE (54 mm)
• Switching function: Main switch, load break switch, disconnector
• Lockability: EVU lockable (utility company lockable)
• Rated impulse withstand voltage: 6 kV
• Degree of protection: IP20 (terminals), IP40 (front, when installed in enclosure)
• Terminal capacity: 1.5 - 35 mm² (solid/stranded)
• Operating temperature: -25 °C to +50 °C
• Standards: IEC/EN 60947-3
• Electrical endurance: 10,000 switching cycles
• Mechanical endurance: 20,000 switching cycles
• Rated conditional short-circuit current: 10 kA (with 63A gG fuse)
• Pollution degree: 2
• Overvoltage category: III

Why choose it

The ZSD-S63/3/E combines high breaking capacity with a compact 3-module width, saving space in the distribution board. Its EVU lockability meets utility requirements for main switches, and the robust construction ensures long-term reliability.

Ideal use cases

• Main switch in residential distribution boards
• Isolation switch in commercial electrical panels
• Utility-metered installations requiring lockable disconnection

Good to know

The switch is designed for use in circuits up to 63 A and can be locked in the off position using a padlock (not included). It complies with IEC/EN 60947-3 for low-voltage switchgear and controlgear.