40kA Type 2 Two-Pole Protection, Standard Solution for Single-Phase Systems

Product Overview

The NPS01-F40 AC 2P Surge Protective Device is a Type 2 SPD designed for single-phase AC power distribution systems.

Compliant with IEC 61643-11 and GB/T 18802.11 standards, it adopts an integrated L-N dual-pole protection structure with a nominal discharge current of 40kA and maximum discharge current of 80kA.

The device effectively suppresses induced lightning surges and switching overvoltage, providing accurate protection for downstream electrical equipment.

It is widely applied in:

Residential buildings
Commercial facilities
Industrial control systems
Terminal distribution panels

Dual MOV Protection, Safe and Stable Operation

Both poles are equipped with high-performance zinc oxide varistor chips, providing:

Fast response
High surge capacity
Low leakage current
Excellent aging resistance

The independent thermal disconnection system quickly isolates faulty circuits caused by overheating or overload, improving system safety.

The built-in red/green status indicator clearly displays operating conditions, while optional remote alarm contacts enable centralized monitoring.

Compact Modular Structure, Easy Maintenance

The device features:

UL94V-0 flame-retardant housing
IP20 protection
Standard 35mm DIN rail installation
Operating temperature: -40℃ to +80℃
Cable size: 4-25mm²

It can be combined with front-end Type 1 SPDs to build a complete first- and second-level lightning protection system, providing a reliable and economical solution for single-phase power applications.

Model	NPS01-F40/275/2	NPS01-F40/320/2	NPS01-F40/385/2	NPS01-F40/440/2
SPD Test Category	Type2/ClassII (EN/IEC61643-11, GB/T18802.11)
Maximum Continuous Operating Voltage Uc (Current Type: a.c.)	275V	320V	385V	440V
Lightning Impulse Current (10/350μs) [L-PE, N-PE] Iimp	20kA
Nominal Discharge Current (8/20μs) [L-PE, N-PE] In	40kA
Maximum Discharge Current (8/20μs) [L-PE, N-PE] Imax	1.2kV	1.3kV	1.5kV	1.7kV
Voltage Protection Level [L-PE, N-PE] Up	≤25ns
Response Time	80A gG Fuse
Backup Fuse	Normally Open and Normally Closed Contact Terminals
Remote Signal Alarm	AC: 250V/0.5A; 125V/1A; DC: 30V/0.1A
Remote Alarm Signal Energy Un/In	0.5mm² to 1.5mm²
Remote Alarm Signal Connection Wire	Floating Changeover Contact
Remote Contact Type	-40℃ to +80℃; 5%~95%
Temperature and Humidity Range	Red: Failed; Green: Normal
Disconnector Operation Indicator	4mm² Solid Wire / Flexible Wire
Minimum Installation Conductor Cross-Section Area (L, N, PE)	25mm² Standard Wire / Flexible Wire
Maximum Installation Conductor Cross-Section Area (L, N, PE)	35mm Standard DIN Rail
Installation Method	Red Thermoplastic Material, UL94V-0
Enclosure Material	IP20
Enclosure Protection Degree	W×L×H: 36×91×66mm
Note: The above products can be optionally equipped with a remote signaling function. Products with remote signaling will have "/FM" added after the original model number, such as NPS01-FBC7/275/1/FM.