Why Choose the TE Connectivity M4/6.SNBT 1SNA206538R0200 Disconnect Terminal Block?
The TE Connectivity M4/6.SNBT 1SNA206538R0200, also referenced as M4/6 SNBT,23, is a compact screw-clamp disconnect terminal block designed for signal circuits in industrial control panels and automation systems. Part of the established TE Connectivity ENTRELEC SNA series, it combines secure screw-terminal connections with a blade disconnect function for convenient circuit isolation, testing and maintenance.
The M4/6.SNBT features a manually operated blade disconnect that can be actuated by hand or with a screwdriver, allowing a circuit to be isolated without removing connected conductors. Integrated test facilities support efficient electrical testing and fault-finding, while the terminal's profile is designed to integrate neatly with compatible SNA terminal block assemblies.
With an IEC current rating of 20 A, 400 V AC operating voltage and capacity for conductors up to 4 mm², the 1SNA206538R0200 provides dependable connectivity in a compact 6 mm-wide format. DIN rail compatibility, IP20 protection and a wide -55 to 110 °C operating temperature range make it well suited to demanding industrial installations.
Key Advantages
- Integrated blade disconnect simplifies circuit isolation, testing and maintenance.
- 20 A IEC current rating for industrial signal and control applications.
- 400 V AC operating voltage for compatible electrical circuits.
- Compact 6 mm terminal width helps maximise DIN rail space.
- Accepts conductors from 0.5–4 mm² for flexible panel wiring.
- DIN rail mounting supports straightforward integration into industrial control cabinets.
Key Features
- TE Connectivity ENTRELEC SNA series.
- M4/6.SNBT screw-clamp disconnect terminal block.
- 2 positions, 2 poles and 1 circuit.
- 20 A IEC current rating.
- 400 V IEC voltage rating.
- 4 kV IEC impulse withstand voltage.
- Blade-type disconnect for convenient circuit isolation.
- IP20 protection and UL94 V-0 polyamide 6.6 housing.
Reliable Circuit Isolation and Testing
Disconnect terminal blocks allow technicians to isolate individual circuits without physically removing field wiring. The M4/6.SNBT incorporates a blade disconnect that can be operated by hand or with a screwdriver, making circuit testing, commissioning, troubleshooting and maintenance more efficient while retaining secure screw-clamp conductor connections.
The terminal is designed for industrial DIN rail assemblies where compact dimensions and reliable electrical performance are important. Its 6 mm width, integrated testing capability and compatibility with common G32 and TH35 DIN rails make it particularly useful in densely populated control cabinets and automation panels.
Typical Applications
- Industrial electrical control panels.
- Signal circuit isolation and testing.
- PLC and automation system wiring.
- Instrumentation and measurement circuits.
- Machinery control and production equipment.
- OEM machine building and panel assembly.
