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

BT P C TT1+1 320 RM(810110) serves as Electrical Surge Protection for LPZ 0B-1 or higher installations which guard low voltage equipment from surge damage. The SPD operates as modular Class II (Class C) equipment for Single Phase 220V/230V TN/TT (“1+1” circuit) power supply systems. The device follows the specifications of IEC 61643-11:2011 and EN 61643-11:2012 together with 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 operates as a high-performance surge protection system that defends electrical devices from dangerous voltage surges and spikes. This device provides 320V surge protection capacity to safely drain extra voltage into the ground line which protects computers and home appliances alongside industrial devices from electric variations.

Electrical Surge Protection Function

The device protects electrical equipment in circuits from damage that occurs because of overvoltage circumstances stemming from lightning strikes or power supply issues.
Electrical surge protection devices defend both devices and their operation from harmful power disturbances and abrupt surge currents.

Common Types

Type 1 SPD: The main entry point of circuits exposed to the greatest lightning risks uses Type 1 SPDs to establish primary surge protection.
Type 2 SPD: Functions in distribution panels to protect consumer electronics as a secondary protection element.
Type 3 SPD: Safeguards terminal equipment including lighting systems and outlets together with other end devices from voltage spikes.

Main Devices

SPD (Surge Protection Device): Transfers overvoltage energy to either the grounding line or the shielding layer.
Lightning Rod: Acts as both a ground and an energy disperser to defend live equipment and structures against damage.

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