Electrical Surge Protection Systems -BT P C TT1+1 440 RM

Electrical Surge Protection Systems BT P C TT1+1 440 RM(810104) 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 400V 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+1 440 RM
Art.-No.

8101104

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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 Systems - BT P C TT1+1 440 RM is a robust surge protection solution designed to protect sensitive electronic devices and electrical systems from damaging voltage surges and spikes. With a surge protection rating of 440V, this system efficiently absorbs and redirects excess voltage to the ground line, preventing potential harm to connected devices such as computers, appliances, and industrial equipment. The TT1+1 configuration offers multi-phase protection for enhanced safety. Compact and durable, the BT P C TT1+1 440 RM is ideal for residential, commercial, and industrial environments, ensuring reliable protection against electrical disturbances.

Electrical Surge Protection System Definition

An electrical surge protection system is a device designed to protect electrical equipment from sudden voltage surges, preventing damage caused by excessive voltage fluctuations.

Main Components

Surge Protector: A device that absorbs and diverts excess voltage to prevent damage to connected equipment.
Grounding Wire: Directs excess electrical energy safely to the ground, ensuring that the surge protector works effectively.
Protective Fuse: A safety component that disconnects the power supply when the system detects unsafe voltage levels, preventing further damage.

Other Components

Overvoltage Protector: Protects devices from voltage spikes that exceed the safe operating range, preventing damage from high voltage surges.
Overcurrent Protector: Safeguards against excessive current flow, preventing overheating, damage, or fire risks in the electrical system.
Transient Voltage Protector: Protects against short-term voltage fluctuations, ensuring that temporary spikes do not harm the equipment.

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