Why Choose the TE Connectivity 1SNA105053R2200 M4/6.SNB Disconnect Terminal Block?
The TE Connectivity 1SNA105053R2200 M4/6.SNB is an orange screw-clamp disconnect terminal block from the ENTRELEC SNA series, designed for convenient circuit isolation in industrial control panels, automation systems and electrical equipment. Its integrated blade disconnect can be operated by hand or with a screwdriver, providing a straightforward method of opening individual circuits during commissioning, testing, troubleshooting and maintenance.
Designed for conductors up to 4 mm², the M4/6.SNB features a compact 6 mm pitch and two connection positions on a single-level circuit. The screw-clamp terminals accept both flexible and rigid stranded conductors from 0.5–4 mm², while the orange housing provides clear visual identification within complex terminal assemblies.
With an IEC rating of 20 A at 400 V, a short-time withstand current of 300 A for 1 s and an IP20 protection rating, the 1SNA105053R2200 delivers dependable performance for industrial signal and control circuits. Compatibility with G32, TH35-15 and TH35-7.5 DIN rails provides flexible installation across a wide range of electrical panels and machinery.
Key Advantages
- Integrated blade disconnect enables convenient circuit isolation for testing and maintenance.
- 20 A IEC current rating for industrial control and signal applications.
- 400 V AC operating voltage suitable for a wide range of electrical circuits.
- Accepts flexible and rigid stranded conductors from 0.5–4 mm².
- Compact 6 mm terminal spacing helps maximise available DIN rail space.
- Orange housing provides clear visual identification within terminal assemblies.
Key Features
- TE Connectivity ENTRELEC SNA series.
- M4/6.SNB screw-clamp disconnect terminal block.
- Orange body with disconnect blade.
- 2 positions, one circuit and one level.
- 6 mm product spacing.
- 4 mm² conductor capacity.
- 20 A IEC current rating.
- 400 V IEC voltage rating.
- Blade disconnect operable by hand or screwdriver.
- DIN rail mounting on G32, TH35-15 and TH35-7.5 rails.
- IP20 protection and UL 94V-0 housing flammability classification.
Convenient Circuit Isolation for Industrial Control Systems
Disconnect terminal blocks allow individual electrical circuits to be opened without removing conductors from their terminals. The M4/6.SNB incorporates a blade disconnect that can be operated manually or with a screwdriver, making it particularly useful during equipment commissioning, diagnostic testing and planned maintenance.
The terminal shares a compact profile suitable for organised SNA-series terminal assemblies, while its 6 mm width helps conserve DIN rail space. Secure screw-clamp connections, broad DIN rail compatibility and the distinctive orange body make the M4/6.SNB a practical choice for control, instrumentation and automation wiring.
Typical Applications
- Industrial control panels and switchgear.
- PLC input and output circuit wiring.
- Instrumentation and signal circuits.
- Machine building and factory automation.
- Commissioning and diagnostic test circuits.
- Circuits requiring convenient maintenance isolation.
