Pluggable Type 1+2 AC Surge Protection for Single-Pole Circuits
LY1-12.5/1(S) is a single-pole pluggable Type 1+2 AC surge protective device for low-voltage distribution systems. With 20kA nominal discharge current, 50kA maximum discharge current, and up to 12.5kA impulse discharge current, it helps protect AC power circuits from lightning surges and transient overvoltage.
Single-pole Type 1+2 AC SPD for low-voltage distribution protection
20kA In, 50kA Imax, and 10kA / 12.5kA Iimp surge ratings
Pluggable module design for easier inspection and replacement
DIN-rail mounting for distribution boards, control cabinets, and AC power panels
Suitable Applications
LY1-12.5/1(S) is suitable for single-pole AC circuits where Type 1+2 surge protection is required in distribution boards, control cabinets, and low-voltage power panels.
Distribution Boards
For single-pole surge protection in AC distribution boards and low-voltage panels.
Residential Panels
Suitable for residential and small commercial power distribution protection.
Control Cabinets
For control panels and equipment cabinets requiring compact surge protection.
Commercial Buildings
Helps protect commercial electrical systems from switching surges and lightning-induced overvoltage.
FAQ
Common questions about LY1-12.5/1(S) single-pole pluggable AC surge protective device selection and application.
What is LY1-12.5/1(S) used for?
LY1-12.5/1(S) is used for single-pole AC surge protection in low-voltage distribution systems. It helps limit transient overvoltage caused by lightning surges or switching events.
What does Type 1+2 mean?
Type 1+2 means the SPD is designed to handle impulse current from lightning surge events and also provide downstream surge limitation for AC distribution systems.
What surge ratings does this SPD provide?
This model provides 20kA nominal discharge current In, 50kA maximum discharge current Imax, and 10kA or 12.5kA impulse discharge current Iimp depending on voltage rating.
What voltage options are available?
Available maximum continuous operating voltage options include 75V, 150V, 275V, 320V, 385V, and 440V AC. Please select the voltage according to the system design.
What is the benefit of the pluggable design?
The pluggable module design allows easier inspection and replacement during maintenance, helping reduce wiring work and service time.
What should be confirmed before ordering?
Please confirm voltage rating, single-pole circuit design, backup fuse, DIN-rail space, wiring cross-section, and remote contact requirement before ordering.
