I. Model Designation Key

JQX100: Rated continuous current for main contacts: 100A DC; Single Normally Open (1NO), high-power, sealed contactor.

12: Coil control voltage: DC 12V (Note: "AC" is an industry-standard model suffix; the actual coil voltage is DC 12V, *not* AC).

AC: Deutsch Aviation-style Connector Assembly variant (specifically designed for heavy machinery wiring harnesses).

II. Core Electrical Parameters

1. Main Circuit (Load Side)

Rated Continuous Current: 100A DC; Short-duration Peak Surge: 400A (≤0.5s); Short-duration 200A sustained for up to 90s.

Rated Withstand Voltage: DC 60V (Compatible with 12V/24V battery systems; commonly used in excavators and wheel loaders).

Contacts: Single Normally Open (1NO) set; Silver alloy contacts sealed within an inert gas chamber + Magnetic Arc Blowout mechanism to prevent arcing and sparking.

Wiring: M8 threaded terminals; Contact internal resistance ≤5mΩ.

2. Coil Parameters (DC 12V)

Rated Coil Voltage: DC 12V; Pull-in Voltage: ≤70% Un (≤8.4V); Drop-out Voltage: ≥5% Un (≥0.6V).

Built-in freewheeling diode for reverse voltage protection; Coil power consumption: approx. 1.8W.

Output Connection: Integrated Deutsch 2-pin waterproof connector (source of the "AC" model suffix); allows for direct plug-and-play connection with the vehicle's original wiring harness.

III. Structure and Protection

Fully epoxy-sealed construction; IP65 dust and water protection rating; Resistant to mud, oil, and vibration—standard equipment for the harsh operating environments of heavy machinery.

Operating Temperature: -40°C to +85°C; Resistant to 5G mechanical shock and 10–500Hz vibration.

Mounting: Suitable for both vertical and side mounting; Cylindrical canister form factor.

IV. Compatible Models (Export Market / Primary Excavator Models)

LiuGong: CLG906D, 908D, 907D Excavator OEM Master Power Switch and Main Pump Control (OEM Part No. 46C8754)

Master Battery Disconnect, Pre-heating, and Main Power Control for XGMA, SDLG, Yuchai Mini-Excavators, Forklifts, and Electric Loaders

Main Control for RVs, Small-scale Energy Storage Systems, and High-Power 12V DC Equipment