WEIDMULLER 8307292002

Product Name: Surge Protection Module

Product Description: This is a plug‑in type industrial surge suppression component developed for signal circuit over‑voltage protection, designed to absorb transient surge voltage induced by lightning, switching and electromagnetic interference on field signal lines, protect downstream automation I/O modules, sensors and instrument equipment from surge damage.

Category:
Description

Technical Specifications: Rated operating voltage 24 V DC, maximum discharge current 20 kA, response time less than 1 ns, insulation voltage 2.5 kV AC, connection cross‑section 0.14‑2.5 mm², width 6.2 mm, power consumption negligible.

Functional Features: Fast‑acting surge clamping, plug‑gable replacement without wire disconnection, visual status indicator, low residual voltage, high electromagnetic interference immunity, compact single‑module structure.

Application Scenarios: PLC signal loop protection, fieldbus signal line protection, sensor and transmitter signal circuit protection, factory automation cabinet, process industry control cabinet, outdoor field signal junction box.

Performance Parameters: Operating temperature range ‑40 ℃ ~ +70 ℃, flame retardant rating UL94‑V0, protection mode line‑to‑line and line‑to‑ground, mechanical life unlimited under normal operating conditions.

Material Composition: Housing made of thermoplastic engineering plastic, internal gas discharge tube and suppression diode assembly, tin‑plated copper alloy clamping contacts.

Structural Features: DIN‑rail snap‑on mounting structure, horizontal stacking installation, front‑side wiring terminals, integrated status display window.

Working Principle: When transient over‑voltage invades the signal line, internal gas discharge tube and suppression diode switch from high‑impedance state to low‑impedance state instantly, divert surge current to ground, clamp residual voltage within safe range for protected equipment, restore high‑impedance state after surge disappears.

Installation Requirements: Mount on standard TS 35 DIN‑rail inside control cabinet, connect protected signal wires to input terminals, connect protected equipment to output terminals, reliable ground connection must be implemented, maintain 6.2 mm unit width spacing for adjacent modules.

Usage Notes: Do not exceed rated continuous operating voltage, ground wire shall adopt short and thick conductor, replace module immediately after surge failure indicated by status window, forbid use in explosive atmosphere without corresponding certification, avoid mechanical impact on internal surge components.

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