TE Connectivity 1SNA174789R0500 BJS8-20 is a 20-pole 8 mm pitch screw-in jumper bar rated at 41 A for cross-connecting compatible ENTRELEC SNA terminal blocks.
£6.34
The TE Connectivity 1SNA174789R0500, also identified as the BJS8-20, is a 20-pole terminal block jumper bar designed for compatible ENTRELEC SNA terminal blocks with 8 mm spacing. It provides an efficient way to bridge multiple adjacent terminals and distribute a common electrical potential across a terminal block assembly.
The BJS8-20 is a screw-in, perforated jumper bar supplied without captive screws or spacers. Compatible fastening kits are used to secure the jumper bar to the terminal blocks, providing a robust cross-connection suitable for industrial control, automation and electrical distribution panels.
With a rated main-circuit current of 41 A, 20 interconnected positions and a compact net weight of approximately 3.2 g, the 1SNA174789R0500 offers a practical alternative to installing numerous individual jumper wires. It is compatible with a broad selection of 8 mm-pitch ENTRELEC SNA terminals.
Terminal block jumper bars distribute a common potential between neighbouring terminals without requiring a separate wire between every connection point. The BJS8-20 provides 20 positions at an 8 mm pitch, helping panel builders reduce wiring time, minimise conductor congestion and create a more organised terminal assembly.
The BJS8-20 is secured to compatible terminal blocks using the appropriate fastening kits. This screw-in arrangement provides a dependable mechanical connection while supporting a main-circuit current rating of 41 A, making the jumper suitable for a wide range of industrial control and distribution applications.
| Manufacturer | TE Connectivity / ENTRELEC |
|---|---|
| Series | SNA |
| Model | BJS8-20 |
| Manufacturer part number | 1SNA174789R0500 |
| Product type | Terminal block jumper bar / cross-connector |
| Function | Jumper bar |
| Number of poles | 20 |
| Spacing / pitch | 8 mm |
| Rated current, main circuit | 41 A |
| Connection style | Screw-in |
| Construction | Perforated jumper bar without captive screw and spacer |
| Installation | Compatible fastening kit required |
| Suitable for | D2.5/8.ADO, D2.5/8.ADO.NF, D4/8.ADO, D4/8.ADO.NF, D6/8.ADO, D6/8.ADO.RS, D6/8.D2.ADO and D6/8.ST.RS |
| Also suitable for | M4/8.D2.SB, M4/8.D2.SF, M6/8, M6/8.D, M6/8.RS, M6/8.ST and M6/8.STP |
| DIN rail compatibility | G32, 32 × 15 mm |
| DIN rail standard | IEC 60715 |
| Operating temperature range | -55 to +110 °C |
| Product net weight | 3.2 g |
| Minimum order quantity | 5 pieces |
| Pack quantity | 5 pieces |
| EAN | 3472591747898 |
| Customs tariff number | 85369010 |
| ETIM classification | EC000489 – Cross-connector for terminal block |
The 1SNA174789R0500 is a BJS8-20 20-pole jumper bar used to cross-connect compatible 8 mm-pitch ENTRELEC SNA terminal blocks.
The BJS8-20 provides 20 interconnected positions, allowing a common electrical potential to be distributed across up to 20 compatible adjacent terminal positions.
The jumper bar has a terminal spacing or pitch of 8 mm.
The BJS8-20 has a rated main-circuit current of 41 A.
No. The BJS8-20 is a perforated jumper bar supplied without captive screws and spacers. The appropriate fastening kits are used to secure it to compatible terminal blocks.
TE Connectivity ENTRELEC SNA jumper bars are used by panel builders, automation engineers and industrial electricians to create compact, dependable and serviceable common-potential connections within terminal block assemblies.
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2025 has been a big year for LED Controls, and our blog has expanded accordingly. We've covered a wide range of topics across industrial control and factory automation this year. From core technology explainers and new product releases to panel building best practice...