Electrical Surge Protection -BT P C TT1+1 320 RM

Electrical Surge Protection BT P C TT1+1 320 RM(810110) is for installation at LPZ 0B-1 or higher, protecting low voltage equipment from surge damage. Applied in modular SPD Class II (Class C) for Single Phase 220V/230V TN/TT (“1+1” circuit) power supply system. Designed according to IEC 61643-11:2011 ; EN 61643-11:2012; GB 18802.1-2011.

Type

BT P C TT1+1 320 RM
Art.-No.

810110

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Location of Use:
Sub-Distribution Boards

System Type:
Single Phase, TN/TT

Protection Elements:
High Energy MOV+ High Energy GDT

Surge Ratings:
In=20/40kA(8/20μs)

High Surge Currents:
Imax=40/65kA(8/20μs)

The Electrical Surge Protection - BT P C TT1+1 320 RM is a high-performance surge protection system designed to shield your electrical devices from damaging voltage surges and spikes. With a surge protection rating of 320V, it effectively absorbs excess voltage and redirects it to the ground line, ensuring that sensitive equipment such as computers, home appliances, and industrial devices remain safe from electrical fluctuations. The TT1+1 configuration provides multi-phase protection for added reliability and safety. Compact and durable, the BT P C TT1+1 320 RM is ideal for residential, commercial, and industrial use, offering enhanced protection against electrical disturbances.

Electrical Surge Protection Function

Prevents damage to circuit equipment caused by overvoltage due to lightning strikes, power supply issues, or other causes.
Protects devices from electrical interference and the impact of surge currents, ensuring safe and reliable operation.

Common Types

Type 1 SPD: Used at the main entry point of circuits most exposed to lightning risks, providing primary surge protection.
Type 2 SPD: Installed in distribution panels and circuits for consumer electronics, offering secondary protection.
Type 3 SPD: Provides protection for end devices such as lighting, outlets, and other terminal equipment from voltage surges.

Main Devices

SPD (Surge Protection Device): Protects equipment by diverting overvoltage to the ground line or shielding layer.
Lightning Rod: Grounds or disperses lightning energy to prevent damage to live devices and structures.

Technical Data

Type	BT P C TT1+1 150 RM	BT P C TT1+1 275 RM	BT P C TT1+1 320 RM	BT P C TT1+1 385 RM	BT P C TT1+1 440 RM
Art.-No.	810103	810109	810110	810111	810104
According to IEC 61643-11/EN 61643-11	Class II (class 2/C) / Type 2
System mode	Single Phase，TT/TN System (“ 1+1 “circuit)
Nominal voltage [UN](50/60Hz)	120V	230V	230V	230V	400V
Rated voltage (max. continuous voltage) [Uc] [L-N / N-PE](50/60Hz)	150V/255V	275V/255V	320V/255V	385V/255V	440V/255V
TOV voltage[U_T][L-N / N-PE]	175V/5sec，1200V/200ms	335V/5sec，1200V/200ms	335V/5sec，1200V/200ms	335V/5sec，1200V/200ms	580V/5sec，1200V/200ms
TOV 120min[U_T][L-N]	230V	440V	440V	440V	765V
Nominal discharge current (8/20μs) [In] [L-N / N-PE]	20kA/40kA	20kA/40kA	20kA/40kA	20kA/40kA	20kA/40kA
Max. discharge current (8/20μs) [Imax] [L-N / N-PE]	40kA/65kA	40kA/65kA	40kA/65kA	40kA/65kA	40kA/65kA
Lightning impulse current (10/350μs) [Iimp] [N-PE]	20kA	20kA	20kA	20kA	20kA
Voltage protection level at In [Up] [L-N / N-PE]	≤ 0.9kV/ ≤ 1.5kV	≤ 1.25kV/ ≤ 1.5kV	≤ 1.5kV/≤ 1.5kV	≤ 1.8kV/≤ 1.5kV	≤ 2.0kV/≤ 1.5kV
Voltage protection level at 5kA [Up] [L-N ]	≤ 0.75kV	≤ 1.0kV	≤ 1.2kV	≤ 1.35kV	≤ 1.7kV
Short circuit withstand capability at max. back up fuse	50kA_rms	50kA_rms	25kA_rms	25kA_rms	25kA_rms
Response time [tA] [L-N / N-PE]	≤ 25ns/≤ 100ns
Follow current extinguishing capability at Uc[N-PE][I_f]	100A_rms
Max. back up fuse [F]	125A gL/gG
Operating temperature range [Tu]	-40°C…+80°C
Operating state / Failure indication	Green / Red
Number of remote terminals	1
Cross-sectional area	1.5mm² ~ 25mm² solid / 35mm² flexible
Mounting on	35mm DIN rail，EN 60715
Degree of Protection	IP 20
Enclosure material	Purple thermoplastic, UL94-V0
Dimension	2 mods (36mm wide)
Certification	CE; RoHS；REACH
Compliance	IEC 61643-11:2011 ; EN 61643-11:2012; GB 18802.1-2011
Type of remote signaling contact	Switching contact
Switching capacity a.c.	250V/0.5A
Switching capacity d.c.	250V/0.1A, 125V/0.2A, 75V/0.5A
Cross-sectional area for remote signaling contact	Max. 1.5mm² solid/flexible