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RESCUE ELECTRICCOMPANY • KERALA
DEHN modular surge protection devices and combined arresters
MANUFACTURER: DEHN
REF: IEC 61643-11, IEC 61643-21, EN 61643-11, IS 16463
Surge ProtectionType 1 + 2 + 3 SPDs

DEHN Surge Protection Systems

Coordinated multi-stage surge protection devices (SPDs) from DEHN protecting low-voltage distribution, data networks, and solar infrastructure.

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Site surveys, material supply quotes, and technical assessments available across Kerala

Technical SpecificationsVERIFIED PARAMETERS
SPD Types AvailableType 1, Type 1+2, Type 2, Type 3
Impulse Current Iimp (10/350 µs)Up to 25 kA per pole (Type 1)
Nominal Discharge In (8/20 µs)20 kA to 40 kA (Type 2)
Voltage Protection Level Up≤ 1.5 kV
MountingStandard 35mm DIN rail

Key Engineering Characteristics

Advanced spark-gap technology with RAC (Rapid Arc Control) for high extinguishing capability
Modular plug-in design with mechanical status indicators and remote fault signaling contacts
Type 1 arresters withstand direct 10/350 µs partial lightning currents up to 25 kA per pole
Type 2 arresters clamp high 8/20 µs switching transients without tripping upstream breakers
Zero leakage current design prevents premature aging and nuisance RCD trips

Typical Applications

• Main Low-Voltage Distribution Boards (MLVDB) and Sub-Distribution Panels
• Rooftop and ground solar inverter arrays (DC and AC protection)
• Data centres, network server racks, and communication switches
• Industrial automation, motor control centers (MCC), and PLC panels
• Smart home audio-visual, surveillance, and automation systems

Detailed Technical Explanation

DEHN is the global benchmark for lightning current and surge protection devices. Rescue Electric engineers and deploys coordinated DEHN SPD systems that eliminate transient overvoltages caused by direct lightning strikes, induction, and utility grid load switching.

Our systems implement the Red/Line® portfolio, coordinating Type 1 combined lightning current and surge arresters at main incoming switchboards, Type 2 modular surge arresters at secondary distribution panels, and Type 3 surge arresters adjacent to sensitive end devices.

We also supply Yellow/Line® specialized protection modules for high-speed Ethernet (Cat 6A/PoE), CCTV video cables, building automation KNX buses, and 1500V DC photovoltaic inverter strings.

COORDINATED HARDWARE

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CERTIFIED ELECTRICAL DEFENSE

Don’t Wait for the Next Storm.

Talk to Rescue Electric Company about lightning protection, surge protection and advanced earthing for your property or project anywhere in Kerala.

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DIRECT TELEPHONE: +91 94963 80272•WHATSAPP: +91 89211 94647