100kA Surge Protector -BT BM100 275 RM/3+N

100kA Surge Protector BT BM100 275 RM/3+N (806363) is for installation at LPZ 0A-1 or higher. Protecting low voltage equipment against lightning and surge damages, mainly used in power supply system. SPD for high current up to max. 100kA 8/20μs, specially designed for TT/TN-S system ("3+1" circuit). Designed according to IEC/EN 61643-11, GB/T 18802.11.

Type

BT BM100 275 RM/3+N
Art.-No.

806363
Features

1. Three-phase surge protection for TT/TN-S system.
2. High discharge capacity, quick response.
3. Double thermal disconnection devices, provide more reliable protection.
4. Multifunctional connection for conductors and red copper busbars.
5. Windows will change to red when fault occurs, also provide remote alarm terminal at the same time.
6. Mode of protection: L-N/N-PE.

Inquiry

Download Datasheet

Location of Use: Sub-Distribution Boards

System Type: Three Phase, 275V/255V AC 3P+N

Protection Elements:
High Energy MOV+ High Energy GDT

Mode of protection: L-N, N-PE

Surge Ratings:
In=50kA/100kA(8/20μs), High Surge Currents:
Imax=100kA/120kA(8/20μs)

100kA surge protector is developed for electrical systems exposed to high-energy surge events, including lightning strikes and large transient disturbances. With a high discharge capacity, it helps divert excessive surge current away from critical equipment and distribution networks. Designed for main power protection applications, it supports stable operation in industrial facilities, commercial buildings, and infrastructure projects. Its robust construction and reliable protection performance make it suitable for environments where electrical continuity and equipment safety are essential.

Features

1. 100kA High Surge Discharge Capacity: Designed to withstand powerful surge currents and provide strong protection against high-energy transient events.
2. Main Power System Protection: Installed at power distribution points to protect downstream electrical equipment from severe overvoltage impacts.
3. Multi-Pole Protection Configuration: Supports three-phase and neutral protection arrangements for comprehensive power system coverage.
4. Fast Surge Response: Rapidly reacts to transient overvoltage conditions to reduce the energy transferred to connected equipment.
5. Robust Electrical Construction: Built for demanding environments where frequent surge exposure and continuous operation are expected.
6. Modular Status Monitoring: Provides visual indication to help maintenance personnel check protection status during routine inspections.
7. Compatible With Backup Protection: Can be integrated with upstream protective devices according to electrical installation requirements.

Advantages

1. Protects Critical Electrical Infrastructure: Helps safeguard main distribution systems, industrial equipment, and valuable electrical assets from severe surge damage.
2. Reduces High-Energy Surge Impact: Limits the destructive effects of lightning and switching surges before they reach sensitive equipment.
3. Improves Power System Reliability: Supports stable electrical operation by reducing unexpected failures caused by transient overvoltage.
4. Minimizes Downtime Risk: Helps prevent costly interruptions in facilities that rely on continuous electrical availability.
5. Extends Equipment Service Life: Reduces repeated electrical stress that may accelerate aging of components and systems.
6. Suitable For Demanding Environments: Provides dependable protection for applications requiring stronger surge resistance than standard devices.

Applications

1. Industrial Power Distribution: Used in factories, manufacturing plants, and production facilities with heavy electrical loads.
2. Commercial Building Power Systems: Suitable for office buildings, shopping centers, hotels, and large commercial facilities.
3. Main Electrical Panels: Installed at incoming power distribution points to provide first-level surge protection.
4. Renewable Energy Facilities: Applied in solar power systems, energy storage installations, and power conversion equipment.
5. Data Centers And Critical Facilities: Protects electrical infrastructure supporting servers, communication systems, and essential operations.
6. Transportation Infrastructure: Used in airports, railway facilities, and public infrastructure requiring reliable power protection.
7. Utility And Energy Projects: Suitable for substations, power stations, and other high-energy electrical installations.

Technical Data

Type	BT BM100 150 RM/3+N	BT BM100 275 RM/3+N	BT BM100 320 RM/3+N	BT BM100 385 RM/3+N	BT BM100 420 RM/3+N	BT BM100 440 RM/3+N	BT BM100 480 RM/3+N
Art.-No.	806362	806363	806364	806365	806366	806367	806368
According to IEC 61643-11/EN 61643-11	Class II / Type 2
Rated voltage (max. continuous voltage) [Uc] [L-N / N-PE](50/60Hz)	150V/255V	275V/255V	320V/255V	385V/255V	420V/255V	440V/255V	480V/255V
Nominal discharge current (8/20μs) [In][L-N / N-PE]	50kA/100kA	50kA/100kA	50kA/100kA	50kA/100kA	50kA/100kA	50kA/100kA	50kA/100kA
Max. discharge current (8/20μs) [Imax][L-N / N-PE]	100kA/120kA	100kA/120kA	100kA/120kA	100kA/120kA	100kA/120kA	100kA/120kA	100kA/120kA
Lightning impulse current (10/350μs) [I_imp][N-PE]	25kA	25kA	25kA	25kA	25kA	25kA	25kA
Voltage protection level at In [Up][L-N / N-PE]	≤ 2kV/ ≤ 2.5kV	≤ 2.2kV/ ≤ 2.5kV	≤ 2.5kV/ ≤ 2.5kV	≤ 2.8kV/ ≤ 2.5kV	≤ 2.8kV/ ≤ 2.5kV	≤ 3kV/ ≤ 2.5kV	≤ 3kV/ ≤ 2.5kV
Voltage protection level at 5kA[L-N]	≤ 0.8kV	≤ 0.9kV	≤ 1.1kV	≤ 1.25kV	≤ 1.35kV	≤ 1.7kV	≤ 1.7kV
Response time [tA][L-N / N-PE]	≤ 25ns/≤ 100ns	≤ 25ns/≤ 100ns	≤ 25ns/≤ 100ns	≤ 25ns/≤ 100ns	≤ 25ns/≤ 100ns	≤ 25ns/≤ 100ns	≤ 25ns/≤ 100ns
Max. back up fuse [L]	200A gL/gG
Max. back up fuse [L-L]	125A gL/gG
Operating temperature range [Tu]	-40°C...+80°C
Failure indication	Red: replace
Cross-sectional area	35mm²solid / 50mm² flexible
Mounting on	35mm DIN rail, EN 60715
Number of remote terminals	Optional
Enclosure material	L-N(Purple) +N-PE(Light gray)module & light gray (base) thermoplastic, UL94-V0
Dimension	8 mods (144mm wide)
Degree of Protection	IP 20
Place of installation	Indoor
Compliance	IEC 61643-11; EN 61643-11; GB/T 18802.11
Certification	CE/RoHS/ISO 9001：2015
Type of remote signaling contact	Switching contact
Switching capacity(U_N/I_N)	AC:250V/0.5A DC:250V/0.1A, 125V/0.2A, 75V/0.5A
Cross-sectional area for remote signaling contact	Max. 1.5mm² solid/flexible