3EL1
HV Surge Arrester 3EL1, Silicone rubber, Cage Design, 10 kA, ≤252 kV
3EL1
- Metal-oxide surge arrester for high-voltage stations — protects transformers, circuit breakers, generators, motors, capacitors, bushings, switchgear and transmission lines
- Cage Design: MOV blocks fully embedded in a prestressed FRP-rod cage with directly molded silicone sheds — shatterproof, no housing break on overload
- Line discharge class 2 or 3: 5.0 / 6.0 kJ/kVr energy absorption, 750 / 800 A long-duration current impulse
- Rated short-circuit current 65 kA, high current impulse 100 kA (4/10 µs)
- Type-tested to IEC 60099-4, IEEE C62.11 and GB 11032
Transformer protectionSwitchgear and circuit-breaker protectionOverhead transmission line protectionGenerator and motor protectionCapacitor bank protection
Sign in to see your price, availability and framework terms for 3EL1.
Horizon-3 pattern: this exact page gains commerce powers on sign-in — the URL never changes.
SIMULATED · ASK-AN-EXPERT PILOT DEMO
Ask an expert about 3EL1
15 minutes with the right arresters & insulators specialist — question in, booked call out. No email archaeology.
Checking availability…
3EL1 covers up to 252 kV of the hv station arresters range (≤ 800 kV across the category, √ scale).
Specifications
Main
| Product family | 3EL1 |
| Product type | Metal-oxide surge arrester |
| Application | High-voltage systems |
| Protection of | Transformers, circuit breakers, generators, motors, capacitors, traction vehicles, bushings, switchgear, transmission lines |
Electrical
| Max. system voltage Us | 252 kV |
| Max. rated voltage Ur | 210 kV |
| Min. system voltage | 3.6 kV |
| Nominal discharge current In | 10 kA |
| Short-circuit rating Isc | 65 kA (rated short-circuit current per catalog and nameplate) |
| Line discharge class | 2/3 |
| Energy absorption capability Eth | 5.0 kJ/kVr (LD class 2) · 6.0 kJ/kVr (LD class 3) |
| Long-duration current impulse I2ms | 750 A (LD class 2) · 800 A (LD class 3) |
| High current impulse (4/10 µs) | 100 kA |
| Residual voltage at In (10 kA, 8/20 µs) | 30.6 kV @ Ur 12 kV · 76.5 kV @ Ur 30 kV · 245 kV @ Ur 96 kV · 505 kV @ Ur 198 kV |
| Frequency | 48 … 62 Hz |
Mechanical / environment
| Housing material | silicone |
| Design | Silicone-rubber cage design |
| Housing sizes | C / E / H / K (1 unit) and N / 2xH / P / Q / 2xK (2 units); heights 305 – 1805 mm |
| Creepage distance | 900 mm (housing C) … 6150 mm (housing 2xK); e.g. 2050 mm for housing H |
| Housing insulation withstand | LIWV 183 – 1056 kV (1.2/50 µs) · power-frequency wet 85 – 492 kV (1 min), by housing size |
| Specified short-term load SSL | 3930 N (C) … 660 N (2xK); dynamic bending moment 1.2 kNm |
| Specified long-term load SLL | 2750 N (C) … 460 N (2xK) |
| Weight | approx. 7.9 – 29.3 kg depending on housing size |
| Sheds | Alternating sheds, gray silicone rubber; upright or suspended mounting |
| Overload behavior | Cage Design pressure relief — arc escapes through the soft silicone housing, no shattering, ejection of parts almost completely prevented |
| Temperature / altitude | Silicone housing material stable –60 °C … +200 °C; installation altitude up to 1000 m (standard) |
Standards & certifications
| Standards | IEC 60099-4 |
| Additional type testing | IEEE C62.11, GB 11032; flame retardance of silicone per IEC 60707 / UL94 V-0 |
| Classification note | Catalog ratings specified via line discharge classes 2/3; IEC 60099-4 Ed. 3.0 (2014) additionally classifies by thermal/impulse charge transfer |
Options & variants
Representative phase-arrester ratings from the HV catalog tables (pp. 35–36); full range Ur 3–198 kV in line discharge class 2 (750 A), with class 3 (800 A) versions available up to Ur 150 kV.
| Type | Ur (kV) | Uc (kV) | In / LD class | I2ms | Min. housing (height) | Residual voltage @ 10 kA 8/20 µs |
|---|---|---|---|---|---|---|
| 3EL1 012-1P.2. | 12 | 9.6 | 10 kA / class 2 | 750 A | C (305 mm) | 30.6 kV |
| 3EL1 030-1P.2. | 30 | 24.0 | 10 kA / class 2 | 750 A | E (445 mm) | 76.5 kV |
| 3EL1 048-1PH21-4DA5 | 48 | 38 | 10 kA / class 2 | 750 A | H (620 mm) | — |
| 3EL1 072-1P.2. | 72 | 58 | 10 kA / class 2 | 750 A | H (620 mm) | 184 kV |
| 3EL1 096-1P.2. | 96 | 77 | 10 kA / class 2 | 750 A | K (900 mm) | 245 kV |
| 3EL1 144-1P.2. | 144 | 115 | 10 kA / class 2 | 750 A | P (1350 mm) | 367 kV |
| 3EL1 198-1P.2. | 198 | 158 | 10 kA / class 2 | 750 A | 2xK (1805 mm) | 505 kV |
Compatible accessories
Earth terminals
Earth terminal, copper tin-plated
Earth terminals
Eyebolt earth terminal
Earth terminals
NEMA earth, stainless steel
Earth terminals
NEMA earth, copper
Earth terminals
Palm earth, aluminum
Terminal adapters
DIN/NEMA adapter terminal
Terminal adapters
Adapter DIN/NEMA to double NEMA
Line connection
Line clamp
Special options
Yellow cover panels
Monitoring
Surge counter (basic)
3EX5 030-0
Monitoring
Leakage current meter (≤50 mA)
3EX5 050-0
Monitoring
ACM Basic — condition monitor
3EX5 080-0
Monitoring
ACM Advanced — wireless IoT monitor
3EX5 080-1
Documents & downloads
Catalog High-voltage surge arresters — product catalog (3EL1 section pp. 33–38)
Handbook Metal-oxide Surge Arresters in High-voltage Power Systems (4th ed., Hinrichsen)
Also covered in the technical library
Catalog High-voltage surge arresters — Product guide
Catalog High-voltage surge arresters — Siemens Energy product guide (online edition)
Brochure Our portfolio of surge arresters & composite insulators — Siemens Energy
Ordered designations
Representative orderable type designations of this family — searchable via the catalog search.
Related products
3EL2 HV Surge Arrester 3EL2, Silicone rubber, Cage Design™, 10/20 kA, ≤420 kV
Us ≤ 420 kV · In 20 kA · Silicone housing Datasheet · Dimensions ↓
3EL3 HV Surge Arrester 3EL3, Silicone rubber, cage design, 20 kA, ≤550 kV
Us ≤ 550 kV · In 20 kA · Silicone housing Datasheet · Dimensions ↓
3EL5