Huber+Suhner, 3402 Surge Suppressor Unit 230V Maximum Voltage Rating 20 kA Maximum Surge Current EMP Protector

This surge suppressor unit provides transient protection for electrical systems in industrial settings, designed for panel mounting and hostile temperature conditions. It intercepts high-energy electromagnetic pulses and lightning-induced transients to protect connected equipment, complying with recognised performance standards for surge protection devices.

• 20 kA maximum surge current capability provides high-energy absorption
• Rated for 230V operation to match common supply systems
• EMC surge protection type suited to electromagnetic Pulse events
• Panel-mount configuration enables secure front- or rear-panel installation
• Operational range from -40 °C to 85 °C supports harsh environments
• Certified to IEC 61643-21 ensuring standardised performance assessment

• Suitable for protection of automation controllers in switchgear panels
• Ideal for safeguarding industrial electronics against lightning strikes
• Used with power distribution modules in manufacturing facilities
• Can be used for transient protection of communication interfaces in control cabinets

It is designed for panel-mount fixing, allowing direct attachment to panel cut-outs or mounting brackets for Compact integration within electrical enclosures.

The device is rated to operate across a wide temperature span from -40 °C up to 85 °C, accommodating cold storage areas and heat-generating equipment rooms.

Its compliance is assessed against IEC 61643-21, which covers requirements and testing methods for surge protective devices for low-voltage distribution.

The suppressor is configured as an EMP protector, providing targeted mitigation of short-duration, high-energy electromagnetic transients to reduce equipment upset and damage.

Gas capsule included except for stock number 111-642 the Gas capsule must be ordered separately, stock no. 494-919