Siemens 3WL12 Circuit Breaker - 1250A, 690V AC, 100kA
Siemens 3WL12 Withdrawable Circuit Breaker.
The Siemens 3WL1212-4CB36-1AJ4 is a high-performance, withdrawable 3-pole circuit breaker designed for robust power distribution and protection. Rated for 1250A at up to 690V AC (50/60Hz), it offers an impressive interrupting capacity of 100kA at 500V. This breaker features an advanced ETU 25 LSI electronic trip unit with adjustable protection settings.
It is suitable for use in main distribution switchboards, industrial power systems, and critical infrastructure where reliable overcurrent and short-circuit protection is paramount. The withdrawable design allows for easy maintenance and replacement without significant system downtime.
Stanlo Automation, a veteran-owned supplier of industrial automation surplus, provides this Siemens 3WL12 circuit breaker and a wide range of electrical components. We ensure you can source the necessary equipment to maintain the safety and reliability of your power distribution systems.
| Poles | 3 |
| Size | II |
| Rated Current (Ie) | 1250A |
| Rated Voltage (Ue) | up to 690V AC |
| Frequency | 50/60Hz |
| Icu at 500V | 100kA |
| Trip Unit | ETU 25 LSI |
| Protection Settings | Adjustable 0.4-1 |
| Connection | Rear horizontal |
| Operating Mechanism | Manual with storage |
| Auxiliary Releases | 1st Release: None, 2nd Release: 'R' (Undervoltage, instant.) |
| Control Voltage | 24 V DC |
| Contacts | 4NO + 4NC |