1sna007021r1300 – m4/9.pz60/48

Why Choose the TE Connectivity M4/9.PZ60/48 Surge Protection Terminal Block?

The TE Connectivity M4/9.PZ60/48, manufacturer part number 1SNA007021R1300, is a specialised screw-clamp surge protection terminal block designed for industrial control, signalling and automation circuits. Part of the established ENTRELEC terminal block range, it combines dependable conductor termination with integrated transient voltage suppression in a compact DIN-rail component holder.

The M4/9.PZ60/48 incorporates a bidirectional TVS/Zener suppression device to help protect connected equipment against transient overvoltages. By integrating the protective component directly into the terminal block, it provides a convenient way to add surge suppression at the wiring interface while reducing the need for separate protective devices elsewhere in the control panel.

Designed for circuits operating at up to 60 V DC / 48 V AC, the M4/9.PZ60/48 is particularly suitable for industrial control and electronic signalling applications where sensitive equipment requires additional protection from short-duration voltage spikes. Its grey housing and compact M4/9 format support organised installation alongside other DIN-rail terminal components.

Key Advantages

• Combines conductor termination and transient voltage suppression in one compact terminal block.
• Integrated TVS/Zener surge protection helps safeguard sensitive control equipment.
• Designed for 60 V DC / 48 V AC circuits.
• Screw-clamp technology provides secure and dependable conductor connections.
• Compact component-holder format helps reduce control panel space requirements.
• Suitable for industrial automation, signalling and electronic control applications.

Key Features

• TE Connectivity ENTRELEC terminal block.
• Model M4/9.PZ60/48.
• Manufacturer part number 1SNA007021R1300.
• Integrated transient voltage surge protection.
• TVS/Zener suppression technology.
• 60 V DC / 48 V AC voltage configuration.
• Screw-clamp connection technology.
• Grey terminal housing.
• Component-holder terminal block configuration.
• Designed for industrial control panel and automation installations.

Reliable Transient Protection for Industrial Control Circuits

Transient voltage spikes can be generated by switching operations, inductive loads and other electrical disturbances within industrial systems. These short-duration overvoltages can interfere with or damage sensitive PLC inputs, electronic controllers, signalling equipment and other low-voltage devices.

The TE Connectivity M4/9.PZ60/48 provides surge suppression directly at the terminal connection, helping limit transient voltages before they reach connected equipment. Combining this protective function with conventional screw-clamp termination provides an efficient solution for building organised and protected industrial control circuits.

Typical Applications

• Industrial control cabinets and electrical panels.
• 48 V AC and 60 V DC control circuits.
• PLC input and output wiring.
• Industrial automation and signalling systems.
• Protection of sensitive electronic equipment from transient voltages.
• Machine building and manufacturing equipment.