The Siemens 3VA9114-0RL10 is a SENTRON RCD320 Basic residual current device module — a Type A RCD designed for load-side mounting on 3VA1 molded-case circuit breakers. It provides ground-fault protection for a 4-pole circuit rated at 160 A (AC) with a selectable residual current threshold from 0.03 A up to 5 A, covering the range from 30 mA personal-protection sensitivity through 5 A equipment-protection levels. This makes it suitable for mixed-load panels where electronic loads are present alongside conventional resistive or motor circuits. The module mounts on the load side of a 3VA1 breaker and connects via busbar connection. Infeed can be from the top or the bottom, which simplifies busbar routing in crowded enclosures. Screw fixing secures it to the DIN rail or mounting plate — no special tooling required for panel integration.
The 160 A operational current (AC) matches the frame size of the host 3VA1 breaker — this is not a standalone RCD but a modular add-on that shares the breaker's current path. If your circuit is fused or breakered at 160 A or less, this module stays within its continuous rating. Seven selectable residual current thresholds (0.03, 0.05, 0.1, 0.3, 0.5, 1, 3, and 5 A) let you dial in the trip sensitivity without swapping hardware. The 30 mA setting covers personnel protection per IEC 60364; the higher settings are used for fire protection or equipment protection where nuisance tripping from leakage currents must be avoided. Rated for 50/60 Hz operation up to 60 Hz, with an operating voltage range of 100–480 V AC. The module includes a pre-alarm indication at 30% of the set residual current value, which can flag deteriorating insulation before a trip occurs.
Siemens SENTRON component. Sealable design supports tamper-proof installation. The module has an electrical trip indicator (mechanical flag) for local status — no communication-based remote tripping or alarm output is provided on this variant. For applications requiring remote signaling, a separate auxiliary contact or communication module would need to be added at the breaker level.