Plug-In Field Installable Relay Module with Two Programmable Relays and 5A @ 250VAC Switching Capacity
Plug-In Relay Expansion Module for 9900 SmartPro® Transmitter
The 3‑9900.393 is a field-installable plug-in Relay Module that adds two programmable SPDT dry-contact relays (5A @ 250VAC / 30VDC) to a panel-mount 9900‑1P base unit for pump/alarm switching.
Automation Function & Key Advantage
It lets the 9900 directly drive high‑power AC/DC loads—dosing pumps, solenoid valves, and audible alarms—with adjustable hysteresis & time delay, removing the need for external interposing relays.
Product Specifications: +GF+ Signet 3‑9900.393 Relay Module
| Parameter | Specification |
|---|---|
| Product Type | Relay Module (Plug-in Module) |
| Model / MFR # | 3-9900.393 (Code: 159 001 698) |
| Relay Type / Quantity | Two (2) programmable dry-contact relays (SPDT) |
| Maximum Switching Voltage | 250 VAC / 30 VDC |
| Maximum Switching Current | 5 A (resistive load) |
| Power Supply | 10.8 – 35.2 VDC, 300 mA (from DC PWR terminals) |
| Installation Type | Panel Mount only |
| Compatible Base Unit | Signet 9900 Transmitter (Panel Mount version) |
| Indicator | Two red mechanical relay status LEDs on the 9900 front panel |
| Adjustable Parameters | Hysteresis and time delay for each relay |
Packaging & Shipping
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Whether you are an end user, system integrator, engineering contractor, or distributor, Xiamen Zhicheng Automation Technology Co., Ltd. is ready to become your trusted partner in industrial automation.
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