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Siemens Air Circuit Breaker 3WL1216
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Specifications
| Brand | Siemens |
|---|---|
| Model Number | 3WL1216 |
| Official Product Name | Siemens Sentron 3WL1216 Air Circuit Breaker |
| Applicable System | Low-voltage power distribution (main incoming / busbar protection) |
| Product Type | Air Circuit Breaker (ACB) |
| Equivalent Standard | IEC 60947-2; successor portfolio Siemens 3WA |
| Product Status | Available on request |
| Poles | 3-pole (4-pole available) |
| Rated voltage | up to 690 V AC, 50/60 Hz |
| Breaking capacity Icu | up to 80–100 kA at 500 V (variant dependent) |
| Trip unit | Electronic ETU (LSI/LIN), adjustable |
| Mounting | Fixed or withdrawable (with guide frame) |
| Standards | IEC 60947-2; eClass 27-37-04-09, ETIM EC000228 |
| Successor | Siemens 3WA series (3WL phased out from 2023-10-01) |
| Rated current (In) | 1600 A (frame size II) |
Product Description
It guards main incoming feeders and busbar sections in industrial and commercial distribution up to 690V AC, using an electronic ETU release for adjustable LSI/LIN overcurrent protection. Depending on variant it offers a breaking capacity up to 80–100kA at 500V, giving dependable short-circuit and overload protection for heavy switchgear. Its modular design accepts a broad accessory and communication portfolio for automated, transparent energy management. Siemens Sentron 3WL1216 is part of the 3WL low-voltage air-circuit-breaker platform (now succeeded by the 3WA series), built for a 1600A frame in size II.
Basic Product Information
- Electronic ETU overcurrent release with adjustable LSI / LIN protection (e.g. ETU15 / ETU25 / ETU45).
- High breaking capacity up to 80–100kA at 500V for robust short-circuit protection.
- Modular accessory system and communication options (Modbus, PROFIBUS, CubicleBUS) for transparent energy management.
- 1600A frame, size II, 3-pole (4-pole variants available) for low-voltage distribution up to 690V AC.
Technical Specifications
Version & Model Difference
Application Scenarios
- Main incoming feeder and busbar protection in industrial LV switchgear
- Commercial building and infrastructure power distribution
- Retrofit / spares for existing 3WL installations
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Frequently Asked Questions
What is the rated current of the Siemens 3WL1216?
The 3WL1216 is the 1600A frame, size II member of the Siemens Sentron 3WL air-circuit-breaker family, suitable for low-voltage distribution up to 690V AC.
Is the 3WL1216 still in production?
The 3WL platform was announced for phase-out (effective 2023-10-01) and succeeded by the 3WA series. The 3WL1216 is typically available on request or as spares; contact us for the 3WA cross-reference.
What trip units are available for the 3WL1216?
It uses electronic ETU releases such as ETU15, ETU25 or ETU45 with adjustable LSI/LIN protection. Exact trip-unit and breaking-capacity configuration depends on the full order-number suffix.
Can the 3WL1216 communicate with a control system?
Yes, the 3WL platform supports communication modules (Modbus, PROFIBUS, CubicleBUS) for metering and remote control, depending on the configured accessory set.
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