SIRIUS 3RA23 reversing contactor assemblies
Siemens SIRIUS 3RA23 reversing contactor assemblies
Ready-wired reversing contactor assemblies from 3 to 55 kW at 400 V – electrically and mechanically interlocked.
Two contactors that run a motor forwards and backwards must never pick up at the same time – otherwise a short circuit occurs between two phases. The 3RA23 assemblies therefore come from the factory with mechanical interlocking and complete wiring. Compared with building your own from two individual contactors this saves assembly time and rules out the most common wiring error. The range covers 7 to 110 A at AC-3, with screw or spring-loaded terminals.
Parent category: Siemens SIRIUS 3RT contactors.
Product benefits
- Proven SIRIUS 3RT range from Siemens – available worldwide and maintained over decades
- Consistent modular system: auxiliary switches, surge suppressors and link modules fit across sizes
- Screw or spring-loaded terminals – spring-loaded saves assembly time and is vibration-proof
- Versions with electronic operating mechanism reduce holding power and work over a wide voltage range
- Approvals to IEC and UL/CSA, so the same plant can be operated in Europe and North America
Items 21 - 40 of 42
Items 21 - 40 of 42
