48kV Polymer-Housed Surge Arresters | High-Voltage Overvoltage Protection for Overhead Power Distribution

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48kv Surge Arresters with Polymer Housed

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48kV Polymer-Housed Surge Arresters | High-Voltage Overvoltage Protection for Overhead Power Distribution

Zinc oxide lightning arrester is a lightning arrester with good protective performance. By utilizing the excellent nonlinear volt ampere characteristics of zinc oxide, the current flowing through the lightning arrester at normal operating voltage is minimized; When overvoltage occurs, the resistance drops sharply, releasing the energy of the overvoltage to achieve protection.

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48kV Polymer Surge Arrester High Voltage Surge Arrester 48kV Polymer-Housed Lightning Arrester Overvoltage Protection Arrester 48kV Outdoor HV Surge Arrester Distribution Line Surge Protection 48kV Polymer Insulated Surge Arrester High-Durability 48kV Arrester Power Line Lightning Protection Device High Voltage Polymer Arrester

Product Description

Surge Arrester Series

The 48kV Polymer-Housed Surge Arrester is a high-performance overvoltage protection device designed to safeguard overhead distribution lines and electrical equipment from lightning and switching surges. Using a polymer-housed structure, it offers lightweight construction, excellent hydrophobicity, and long-term outdoor durability. This 48kV surge arrester is built to ensure steady system operation in harsh weather conditions and high-pollution areas.

Product Advantages：

High-level 48kV surge protection for overhead lines
Polymer housed design for lightweight, impact resistance, and superior insulation
Excellent hydrophobic properties for outdoor performance
Corrosion-resistant, suitable for coastal and industrial zones
High mechanical strength for strong wind and ice conditions
Long lifespan with reduced maintenance needs
Effective suppression of lightning and switching surges
Reliable performance under high humidity and UV exposure
Easy installation with standard mounting hardware
Stable operation for utility distribution networks

Applications：

Overhead power distribution lines (48kV class)
Transformer and substation surge protection
Industrial electrical networks prone to surge events
Coastal, humid, high-pollution environments
Renewable energy grid connections (wind & solar)
Urban and rural distribution grid systems

How to Apply ：

• Mount the 48kV surge arrester onto the pole or equipment bracket using standard hardware.

• Connect the line terminal to the conductor and the ground terminal to the earth system.

• Ensure proper grounding resistance to guarantee surge discharge efficiency.

• Perform regular inspections during line maintenance cycles.

General

1. Ratings:0.22~500KV (porcelain),0.22~220KV(composite)

2. Application:for protection of power transmission & distribution system from over-voltage.

3. Features:

1）Silicone polymer housing composite metal oxide surge arrester and porcelain housing metal Oxide surge arresters are available.

2）Easy installation and maintenance.

3）Good sealing capability to ensure reliable operation.

4）Protection and reliability of the surge arrester have been greatly enhanced.

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Quality Assurance：

Built with high-grade MOV blocks for stable surge suppression
Polymer housing meets outdoor insulation and aging standards
100% routine test before delivery
Moisture-resistant, UV-resistant, anti-corrosion coating
Compliance with IEC/ANSI surge arrester standards

FAQ：

Q1: What voltage class is this surge arrester suitable for?

A1: It is designed for 48kV distribution networks.

Q2: What is the advantage of polymer-housed design?

A2: It offers light weight, hydrophobicity, and strong outdoor durability.

Q3: Can this 48kV surge arrester be used in coastal areas?

A3: Yes, its polymer housing provides excellent anti-corrosion performance.

Q4: Does the arrester require frequent maintenance?

A4: No, only periodic inspection is required.

Q5: Is it compatible with standard mounting brackets?

A5: Yes, it fits common distribution line brackets and poles.

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Working Condition

1. Ambient air temperature:-40℃ ~+40℃ ;

2. Altitude：<=2000m;

3. Frequency: 48Hz~62Hz;

4. Power frequency voltage applied between terminals of surge arrester must not exceed continuous operating voltage of surge arrerter;

5. Earthquake intensity is less than 8 degree;

6. Max. Wind speed is 35m/s.

Main Techical Parameter

1. Metal oxide Polymer Housing (Gapless) type Surge Arrester for A.C System(5kA series)

Model	Rated voltage (kVr.m.s)	Continuous operating Voltage(KVr.m.s）	Lightening impulse residual voltage under nominal discharge current (<=KVp)	Line discharge class	Creepage distance(mm)	2ms square wave impulse current withstands(A)	4/10μhigh current impulse Withstands(KAp)
YH-5W-6	6	5.1	18		320	150	65
YH-5W-9	9	7.65	27		430	150	65
YH-5W-12	12	10.2	36		430	150	65
YH-5W-15	15	12.75	45		530	150	65
YH-5W-18	18	15.3	54		530	150	65
YH-5W-21	21	16.8	63		640	150	65
YH-5W-24	24	19.2	72		640	150	65
YH-5W-27	27	21.6	81		740	150	65
YH-5W-30	30	24	90		890	150	65
YH-5W-33	33	26.4	99		890	150	65
YH-5W-36	36	28.8	108		1115	150	65

2. Metal Oxide Polymer Housing (Gapless) type Surge Arrester for A.C. System (10KA series)

Model	Rated voltage (kVr.m.s)	Continuous operating Voltage(KVr.m.s）	Lightening impulse residual voltage under nominal discharge current (<=KVp)	Line discharge class	Creepage distance(mm)	2ms square wave impulse current withstands(A)	4/10μhigh current impulse Withstands(KAp)
YH-10W-6	6	5.1	18	1	320	250	100
YH-10W-9	9	7.65	27	1	430	250	100
YH-10W-12	12	10.2	36	1	430	250	100
YH-10W-15	15	12.75	45	1	530	250	100
YH-10W-18	18	15.3	54	1	530	250	100
YH-10W-21	21	16.8	63	1	640	250	100
YH-10W-24	24	19.2	72	1	740	250	100
YH-10W-27	27	21.6	81	1	740	250	100
YH-10W-30	30	24	90	1	890	250	100
YH-10W-33	33	26.4	99	1	890	250	100
YH-10W-36	36	28.8	108	1	1115	250	100
YH-10W-42	42	33.6	126	2	1260	400	100
YH-10W-48	48	39	139	2	1260	400	100
YH-10W-54	54	42	160	2	1260	400	100
YH-10W-60	60	48	178	2	1465	400	100
YH-10W-66	66	52.8	196	2	1465	400	100
YH-10W-72	72	57	214	2	2255	400	100
YH-10W-84	84	67.2	244	2	2255	400	100
YH-10W-90	90	72.5	249	2	2255	400	100
YH-10W-96	96	75	265	3	3555	800	100
YH-10W-108	108	84	281	3	3555	800	100
YH-10W-120	120	96	300	3	4153	800	100
YH-10W-150	150	120	416	3	5040	800	100
YH-10W-200	200	156	520	3	7110	800	100

3. Metal Oxide Polymer Housing (Gapless) type Surge Arrester for A.C. System (20KA series)

Model	Rated voltage (kVr.m.s)	Continuous operating Voltage(KVr.m.s）	Lightening impulse residual voltage under nominal discharge current (<=KVp)	Line discharge class	Creepage distance(mm)	2ms square wave impulse current withstands(A)	4/10μhigh current impulse Withstands(KAp)
YH-20W-108	108	84	281	3	3555	800	100
YH-20W-120	120	96	300	3	4153	800	100
YH-20W-150	150	120	416	3	5040	800	100
YH-20W-200	200	156	520	3	7110	800	100

4. Metal Oxide Porcelain Housing (Gapless) type Surge Arrester for A.C. System (5KA series)

Model	Rated voltage (kVr.m.s)	Continuous operating Voltage(KVr.m.s）	Lightening impulse residual voltage under nominal discharge current (<=KVp)	Line discharge class	Creepage distance(mm)	2ms square wave impulse current withstands(A)	4/10μhigh current impulse Withstands(KAp)
Y5W-6	6	5.1	18		280	150	65
Y5W-9	9	7.65	27		320	150	65
Y5W-12	12	10.2	36		320	150	65
Y5W-15	15	12.75	45		450	150	65
Y5W-18	18	15.3	54		450	150	65
Y5W-21	21	16.8	63		450	150	65
Y5W-24	24	19.2	72		510	150	65
Y5W-27	27	21.6	81		510	150	65
Y5W-30	30	24	90		890	150	65
Y5W-33	33	26.4	99		890	150	65
Y5W-36	36	28.8	108		890	150	65

5. Metal Oxide Polymer Housing (Gapless) type Surge Arrester for A.C. System (10KA series)

Model	Rated voltage (kVr.m.s)	Continuous operating Voltage(KVr.m.s）	Lightening impulse residual voltage under nominal discharge current (<=KVp)	Line discharge class	Creepage distance(mm)	2ms square wave impulse current withstands(A)	4/10μhigh current impulse Withstands(KAp)
Y10W-6	6	5.1	18	1	280	250	100
Y10W-9	9	7.65	27	1	320	250	100
Y10W-12	12	10.2	36	1	320	250	100
Y10W-15	15	12.75	45	1	450	250	100
Y10W-18	18	15.3	54	1	450	250	100
Y10W-21	21	16.8	63	1	450	250	100
Y10W-24	24	19.2	72	1	510	250	100
Y10W-27	27	21.6	81	1	510	250	100
Y10W-30	30	24	90	1	890	250	100
Y10W-33	33	26.4	99	1	890	250	100
Y10W-36	36	28.8	108	1	890	250	100
Y10W-42	42	33.6	126	2	1256	400	100
Y10W-48	48	39	139	2	1256	400	100
Y10W-54	54	42	160	2	1256	400	100
Y10W-60	60	48	178	2	1440	400	100
Y10W-66	66	52.8	196	2	1440	400	100
Y10W-72	72	57	214	2	1440	400	100
Y10W-84	84	67.2	244	2	2200	400	100
Y10W-90	90	72.5	249	2	2200	400	100
Y10W-96	96	75	265	3	3350	800	100
Y10W-108	108	84	281	3	3350	800	100
Y10W-120	120	96	300	3	3948	800	100
Y10W-150	150	120	416	3	4400	800	100
Y10W-200	200	156	520	3	6700	800	100

6. Metal Oxide Polymer Housing (Gapless) type Surge Arrester for A.C. System (20KA series)

Model	Rated voltage (kVr.m.s)	Continuous operating Voltage(KVr.m.s）	Lightening impulse residual voltage under nominal discharge current (<=KVp)	Line discharge class	Creepage distance(mm)	2ms square wave impulse current withstands(A)	4/10μhigh current impulse Withstands(KAp)
Y20W-108	108	84	281	3	3555	800	100
Y20W-120	120	96	300	3	4106	800	100
Y20W-150	150	120	416	3	4400	800	100
Y20W-200	200	156	520	3	6700	800	100
Y20W-444	444	324	1106	4	17052	2000	100