The HS2 TYPE1+2 AC LDSP1s7 series is a Type 1+2 combined AC surge protective device compliant with IEC/EN standards. It features 7 kA limp (10/350µs lightning impulse), 20 kA In and up to 50 kA Imax (8/20µs switching surges), with plug‑in module design, thermal disconnection, visual fault indication, and optional remote signaling. Built‑in safety fuse and 35mm DIN‑rail installation make it ideal for lightning and surge protection in low‑voltage distribution systems for buildings, industry, and data centers.
Designed to meet IEC 61643‑11 standards, the HS2 series is suitable for TT, TN‑S, and TN‑C‑S power supply systems, providing coordinated protection against direct lightning strikes (10/350μs) and induced switching surges (8/20μs).
Normal Operating & Installation Conditions
- Ambient Temperature: -40°C to +85°C (wide industrial range).
- Relative Humidity: ≤95% (non‑condensing).
- Altitude: ≤2000m (standard).
- Pollution Degree: 2 (typical for protected indoor environments).
- Installation Type: Fixed, 35mm DIN rail mounting required.
- Minimum Wire Size: 2.5mm²; Maximum 25mm² (screw terminal/busbar compatible).
- External Backup Protection: SCB or gG fuse rated 125A required to meet Isccr 25kA.
Quality & Compliance
- Certified to IEC 61643‑11 / EN 61643‑11 – Class I+II combined surge protection.
- Plug‑in module with thermal disconnection – ensures safe end‑of‑life failure mode.
- Visual green/red status indicator – clear operational state at a glance.
- Optional remote signaling – floating changeover contact for building management integration.
- Built‑in safety fuse and backup fuse coordination – supports 125A gG backup fuse for Isccr 25kA.
- RoHS compliant, UL94‑V0 enclosure – environmentally friendly flame‑retardant materials.
- Manufactured under an ISO 9001:2015 quality management system.
