SJX-402 manual junction boxDetailed product description：

SJX-402 manual junction box

Product Features:
The SJX-402 manual junction box is a manual centralized point selection device for measuring vibrating wire instruments.
Its structure is a fully sealed aluminum box with dimensions of 260 * 180 * 120mm. There are 20 1m long lead out cables on the back panel, which can be manually selected and measured using the switch inside the box.
The SJX-401 manual junction box is a sealed 20 point two-wire junction box
The SJX-402 manual junction box is a sealed 20 point four wire junction box


Main technical indicators:
Specifications: 401, 402
Number of switches: 2, 4
Difference in internal resistance of switch contacts: ≤± 0.1 Ω
Switch lifespan: ≥ 5000 cycles
Number of outgoing points: 20 points