Schneider Electric A9R21425 Residual Current Circuit Breaker | Acti9 iID 4P 25A 30mA Type A

£59.95 £71.94 Inc VAT

The Schneider Electric A9R21425 delivers highly precise residual current protection for industrial electrical systems. This four-pole modular circuit breaker stops earth-leakage current hazards effortlessly. Specifically, it safely isolates faulty outgoing lines within milliseconds of detecting a 30mA difference. Consequently, engineers choose this model for its unique VisiSafe maintenance indicators and secure toggle controls.

1 in stock

Estimated Standard Delivery Jun 11, 2026 - Jun 12, 2026

Description

Schneider Electric A9R21425 Residual Current Circuit Breaker | Acti9 iID 4P 25A 30mA Type A

Advanced Earth-Leakage Circuit Protection
The Schneider Electric A9R21425 residual current circuit breaker significantly improves the personal safety profiles of your entire electrical installation. This is because it serves as a vital tracking link that instantly compares outgoing and incoming line currents.
By providing highly sensitive Class A protection thresholds, this unit shields downstream workers from direct or indirect contact shocks. Consequently, your multi-phase machines, automation assemblies, and operations panels stay completely safe from hazardous earth-leakage insulation faults.
Immediate Fault Diagnostics Indication
Complex panel systems require rapid trouble-shooting response windows to prevent unexpected infrastructure downtime. Therefore, Schneider Electric fits this modular core breaker with a dual mechanism design called VisiSafe and VisiTrip.
This arrangement provides a bold mechanical flag on the front cover face whenever an active leakage trip occurs. As a result, field crews can isolate malfunctioning components across busy distribution zones dynamically. For this reason, you can reliably run plant schedules without manually tracking down hidden phase breakdowns.
Reversible and Compact Casing Architecture
Panel configuration experts save valuable installation layout room inside distribution cabinets owing to the smart unit hardware geometry. For instance, you can run main feeder wiring via either top or bottom tunnel ports freely.
Alternatively, you can clip the structural shell directly onto a standard 35 mm DIN rail profile using the spring clip. Because of these flexible alignment options, this 4-module component integrates smoothly into space-constrained enclosures and high-load sub-boards alike.
Heavy-Duty Copper Terminal Clamping
In addition to physical flexibility, the durable structural frame layout safely withstands intense electrical and mechanical terminal stresses. Specifically, the terminal openings accept solid copper distribution cables with wire cross-sections up to 35 mm² securely.
Furthermore, the rugged box frame supports robust fastening integrity up to 3.5 N.m of tightening torque. For this reason, your main conductor points remain completely stable during intense line vibrations or thermal fluctuations.
Efficient Distribution Board Integration
First, place the four-pole layout frame over your panel busbar alignment section carefully. Next, fasten the central terminal screws to ensure clean, low-resistance electrical current flow paths.
Finally, test the manual trigger toggle switch to verify internal latch mechanics before energizing downstream circuits. This straightforward engineering installation sequence avoids wiring connection mistakes and lowers assembly costs.

Technical Specifications
  • Product Model: Schneider Electric A9R21425 (Acti9 iID Series)
  • Breaker Device Type: Residual Current Circuit Breaker (RCCB / RCD)
  • Pole Configuration: 4 Poles (4P) Layout
  • Rated Line Current: 25 A Continuous Load
  • Earth-Leakage Sensitivity: 30 mA Fault Current Tripping
  • Protection Current Class: Type A (AC and pulsating DC protection)
  • Operational Voltage: 380V to 415V AC Phase Network
  • Conditional Short Circuit: 10 kA High Fault Capacity
  • Mounting Installation: 35mm DIN Rail Mountable
  • Tightening Torque: 3.5 N.m Top or Bottom Connections
  • Product Dimensions: 91mm x 72mm x 73.5mm (H x W x D)