jb5-2 – jumper bar zk2.5/zs4 terminal 1 Pack of 50

Why Choose the TE Connectivity JB5-2 Jumper Bar?

The TE Connectivity JB5-2, part number 1SNK905302R0000, is a 2-pole screwless jumper bar from the ENTRELEC SNK Series designed to electrically bridge adjacent compatible terminal blocks. With a 5.2 mm spacing, it provides a compact and efficient method of distributing common potentials across terminal connections in industrial control panels and automation equipment.

Designed for compatible 5.2 mm pitch SNK terminal blocks, including applications with ZK2.5 and ZS4 terminals, the JB5-2 uses a screwless push-in mounting arrangement. Its insulated construction and positive-locking design help simplify jumper installation while maintaining a secure connection within professional terminal assemblies.

The JB5-2 is rated at 1000 V and 32 A to IEC, with a 480 A short-time withstand current for 1 s and 8 kV impulse withstand voltage. Manufactured from orange polyamide, each jumper measures just 5.2 mm wide and is supplied in a pack of 50 for production, panel-building and maintenance requirements.

Key Advantages

• 2-pole jumper bar for electrically bridging adjacent terminal blocks.
• 5.2 mm spacing for compatible ENTRELEC SNK terminal assemblies.
• Screwless mounting simplifies jumper installation without individual jumper screws.
• Insulated and positive-locking design supports secure industrial connections.
• 1000 V IEC voltage rating for demanding electrical systems.
• 32 A IEC current rating for power and control circuit distribution.
• Supplied in a pack quantity of 50 for panel-building and production use.

Key Features

• TE Connectivity ENTRELEC SNK Series.
• JB5-2 screwless jumper bar.
• 2-pole configuration.
• 5.2 mm product spacing.
• Orange insulated construction.
• Screwless retention for fast assembly.
• 1000 V IEC rated voltage.
• 32 A IEC rated current.
• 600 V UL/CSA maximum operating voltage.
• 30 A UL and CSA current rating.
• 8 kV IEC impulse withstand voltage.
• 2.2 kV dielectric withstand voltage.
• 480 A short-time withstand current for 1 s.
• Compact 5.2 × 8.2 × 26.8 mm dimensions.
• Operating temperature range from -55 to 110 °C.

Fast and Secure Common-Potential Distribution

Jumper bars allow multiple terminal blocks to share a common electrical potential without requiring separate external wires between each terminal. The JB5-2 bridges two adjacent positions, providing a neat and compact solution for commoning circuits within compatible 5.2 mm spacing ENTRELEC SNK terminal assemblies.

The JB5 screwless jumper system is designed to facilitate and secure assembly through screwless mounting, insulation and positive locking. This approach reduces wiring complexity and supports clean panel layouts while providing electrical performance up to 32 A and 1000 V IEC.

Typical Applications

• Bridging adjacent compatible ZK2.5 and ZS4 terminal blocks.
• Common-potential distribution in terminal rows.
• Industrial control panel wiring.
• Machine building and OEM equipment.
• Factory automation systems.
• PLC and instrumentation cabinets.
• Power and signal distribution assemblies.