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Siemens 3WL1112-3CB33-1AJ2 3-Pole Fixed-Mounted Circuit Breaker

Siemens 3-pole fixed-mounted circuit breaker, Size I, 1250A.

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ManufacturerSiemens
Part number3WL1112-3CB33-1AJ2
Type Fixed-mounted circuit breaker
Poles 3
Size I
Standards IEC
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3-pole configuration Fixed-mounted design IEC compliant 1250A current rating 690V AC voltage rating ETU 25 LSI protection with adjustable settings

The Siemens 3WL1112-3CB33-1AJ2 is a 3-pole, fixed-mounted circuit breaker from the 3WL11 series. It is designed for IEC standards, with a nominal current (In) of 1250A and a voltage rating of up to 690V AC (50/60Hz). This breaker features an interrupt current capacity (Icu) of 66kA at 500V and front connections at the top/bottom with a single-hole terminal. It includes the ETU 25 LSI overcurrent release with adjustable settings (0.4-1xIn), manual operating mechanism, storage, mechanical requests, and auxiliary releases.

This sophisticated circuit breaker is ideal for demanding power distribution and protection tasks in various industrial settings, including manufacturing plants, large commercial buildings, and power generation facilities. Its adjustable release and multiple auxiliary functions make it versatile for complex electrical systems.

Stanlo Automation, your trusted veteran-owned source for surplus industrial automation parts, provides this Siemens 3WL1112-3CB33-1AJ2 at competitive pricing. We ensure the quality and availability of essential components to maintain your operational uptime. Choose Stanlo Automation for reliable parts and expert support.

TypeFixed-mounted circuit breaker
Poles3
SizeI
StandardsIEC
Rated Current (In)1250A
Max Voltage690V AC
Frequency50/60Hz
Interrupting Capacity (Icu)66kA at 500V
ConnectionFront, top/bot. single-hole
Overcurrent ReleaseETU 25 LSI, adjustable 0.4-1xIn
Industrial power distribution
Motor protection
Switchgear
Control panels
Large facilities
Power generation
Manufacturing plants
Siemens 3WL11 series switchgear Compatible with IEC 60947-2 standards Applications requiring adjustable LSI protection
Siemens 3WL1112 breaker, 1250A IEC breaker, Siemens ETU 25 LSI
This circuit breaker is part of the Siemens 3WL11 series and is designed as a robust solution for power distribution applications. It offers advanced protection features with its ETU 25 LSI release.
Expert tip
The "R" designation in the part number often refers to a specific configuration of releases or accessories, and its exact meaning should be confirmed with Siemens documentation.
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What are the adjustable protection settings on the Siemens 3WL1112-3CB33-1AJ2 circuit breaker?
The Siemens 3WL1112-3CB33-1AJ2 features an ETU 25 LSI overcurrent release with adjustable settings for L (long-time delay), S (short-time delay), and I (instantaneous) protection, typically adjustable from 0.4 to 1 times the nominal current.