Lightning Surge Protection-BT PUM 4WD 480 RM/4P

The main distribution system employs Lightning Surge Protection BT PUM 4WD 480 RM/4P(815088) as protective equipment designed to shield low voltage equipment by design limiting the VPR thus protecting against indirect surges. Application in AC voltage system of 3 Phase High Leg Delta electrical systems(4W+G circuit). Follows design standards of IEC 61643-11 and UL 1449-4th type 4-1 combined SPD Modules.

Type

BT PUM 4WD 480 RM/4P
Art.-No.

815088
Features

1. Combined module SPD for 3 Phase High Leg Delta electrical systems(4W+G circuit). 2. Max. Discharge current (Imax) up to 50kA (8/20μs). 3. Short-circuit current rating (SCCR) 200kA. 4. Double thermal disconnector device, providing more reliable protection. 5. Green window will change when fault and also provide remote alarm control at the same time.

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240V Surge Suppression Device for Power Systems

ISCCR: 200kA

System Type:
3 Phase High Leg Delta Electrical Systems(4W+G circuit)

Protection Elements:
High Energy MOV

Surge Ratings:
In=20kA(8/20μs)

High Surge Currents:
Imax=50kA(8/20μs)

The Lightning Surge Protection provides advanced lightning surge protection for systems running at 480V with four interminable poles. Electrical surge safety device provides trustworthy surge protection from lightning strikes and electric voltage changes through fast response times in addition to thermal security functions. This system has proven its suitability for industrial as well as commercial and energy infrastructure applications because it delivers exceptional durability and operating efficiency.

Lightning Surge Protection - BT PUM 4WD 480 RM/4P

The BT PUM 4WD 480 RM/4P represents the pinnacle of lightning surge protection for four-pole electrical frameworks which shields systems during both lightning strikes and power varying events and grid interruptions. This device provides remarkable reliability and best-in-class performance for usage across industrial operations and commercial buildings as well as infrastructure systems.

Key Features:

High Surge Absorption Capacity: Efficiently absorbs powerful surge currents, safeguarding critical equipment installations and infrastructure operations.
Multi-Stage Protection: Provides double-layer surge suppression through primary and secondary circuit elements for enhanced protection quality.
Rapid Activation: Quickly responds to brief voltage spikes, also known as transient overvoltages, to prevent equipment damage.
Thermal Safety System: Integrated thermal disconnect feature ensures safe operation even under severe environmental conditions.

Technical Specifications:

Rated Voltage (Ue): 480V AC (four-pole)
Maximum Continuous Operating Voltage (Uc): 550V AC
Nominal Discharge Current (In): 30kA
Maximum Discharge Current (Imax): 60kA
Protection Level (Up): ≤2.0kV
Response Time (tA): <20ns
Operating Temperature Range: -40°C to +80°C
Installation Method: DIN rail mounting

Applications:

Industrial Facilities: Protects heavy machinery, transformers, and distribution systems from lightning-induced surges.
Commercial Buildings: Ideal for safeguarding electrical equipment in office complexes, shopping malls, and data centers.
Energy Infrastructure: Ensures the safety and operational efficiency of power distribution networks and energy systems.
Critical Systems: Shields vital telecommunications systems and valuable infrastructure equipment in development projects.

Technical Data

Product Showcase

Mounting

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Type	BT PUM 4WD 240 RM/4P	BT PUM 4WD 480 RM/4P
According to UL 1449-4th; IEC 61643-11 ; EN 61643-11	Class I / Type 1
System mode	For 3 Phase High Leg Delta electrical systems(3W+G circuit)
Nominal system AC voltage (50/60Hz) [U_N]	120V/240V Delta	240V/480V Delta
Max. continuous operating AC voltage [M_COV](L-N)/(L-G)/(N-G)/(L-L)/(H-N)/(H-G)/(L-H)	230V/410V/180V/460V/275V/455V/505V	385V /565V/180V/ 770V/510V/690V/895V
Nominal discharge current (8/20µs) [I_n]	20kA	20kA
Max. discharge current (8/20μs) [Imax]	50kA	50kA
Lighting impulse current (10/350µs)[I_imp]	8kA	—
Voltage protection rating [VPR]](L-N)/(L-G)/(N-G)/(L-L)/(H-N)/(H-G)/(L-H)	0.7kVpk /1.2kVpk/0.6kVpk/1.5kVpk/0.8kVpk/1.5kVpk /1.5kVpk	1.2kVpk/1.8kVpk/0.6kVpk/2.5kVpk/1.5kVpk/2.0kVpk/2.5kVpk
Short circuit current rating [I_SCCR]	200kA
Max. back up fuse [F]	125A gL/gG
Operating state / Failure indication	Green / Red
Operating temperature range [Tu]	-40°C…+80°C
Cross-sectional area	2.5mm² ~ 25mm² solid / flexible
Mounting on	35mm DIN rail，EN 60715
Number of remote terminals	1 （or optional）
Degree of Protection	IP 20
Enclosure material	Red (module) & light gray (base) thermoplastic, UL94-V0
Dimension	4mods （72mm wide)
Certification	CE; RoHS;ISO 9001:2015;REACH
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
Ordering Information
Type	BT PUM 4WD 240 RM/4P	BT PUM 4WD 480 RM/4P
Art.-No.	815083	815088
Packing unit	1pc(s)	1pc(s)