Fusebox 100A 4 Pole Type A RCD S Type RTA1001004S

FuseBox RTA1001004S — 100A 100mA Type S Time-Delayed 4-Pole RCD

The FuseBox RTA1001004S is a high-performance 100A 100mA 4-pole Type S (time-delayed) RCD designed for selective upstream protection in three-phase systems. Its delayed tripping characteristic allows the device to discriminate with downstream RCDs, preventing unnecessary power loss in multi-layered protection schemes. This makes it ideal for commercial, industrial, and large-scale installations where system continuity is critical.

With 4-pole isolation across L1, L2, L3 and Neutral, the RTA1001004S integrates seamlessly with FuseBox TPN distribution boards. Its 100mA sensitivity provides robust fault and fire protection without the nuisance tripping associated with lower-sensitivity devices, particularly in circuits with long cable runs, high inrush equipment or harmonic-rich loads.

Selective Protection for Complex Installations: The Type S (time-delayed) characteristics ensure that downstream RCDs trip first during a fault, maintaining discrimination across the installation and reducing avoidable downtime. This makes the RTA1001004S an essential upstream device for multi-RCD environments such as plant rooms, commercial distribution boards, and industrial control systems.

Installer-Focused Reliability: As with the wider FuseBox 3-phase protection range, the unit is engineered for straightforward DIN-rail mounting and durable, long-term performance. Its 100A rating and 4-pole configuration provide the scalability required for demanding three-phase loads.

Key Features of the FuseBox RTA1001004S Include:

• Type S Time-Delayed Operation For Upstream Selective Protection
• 100mA Sensitivity Suitable For Fire Protection And Equipment-Level Safety
• 4-Pole Isolation Covering L1, L2, L3 And Neutral For Full Three-Phase Protection
• Rated At 100A To Support High-Load Commercial And Industrial Circuits
• Designed For Use With FuseBox TPN Distribution Boards
• Improved Discrimination To Prevent Unnecessary Downstream Tripping
• Reliable Performance For Harmonic-Rich And Mixed Electronic Loads
• DIN-Rail Mounting For Fast, Practical Installation
• Engineered And Tested To EN/IEC Standards For Electrical Safety

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