Description
1. Unboxing & Physical Snapshot
- Model & Brand: Bender GmbH & Co. KG / Residual Current Monitor Series (Part No. RCM475LY-13)
- Physical Dimensions (Approximate W x H x D): Standard modular X470 enclosure profile, approx. 45.0 mm x 90.0 mm x 110.0 mm (1.77 in x 3.54 in x 4.33 in).
- Estimated Shipping Weight: 0.30 kg (0.66 lbs).
- What’s in the Box: Residual current monitor unit, integrated internal measuring current transformer (\varnothing 18 mm aperture), sealable transparent cover, pluggable terminal blocks, and manufacturer compliance documentation.
2. Product Introduction
Industrial power distribution networks, automated manufacturing cells, and critical electrical infrastructure require continuous residual current monitoring to detect insulation degradation and ground faults before they trigger catastrophic equipment shutdowns or present shock hazards. This Bender RCM475LY-13 residual current monitor snaps onto standard DIN rails—which is vital for tracking AC and pulsating DC leakage currents (Type A) in TN and TT electrical distribution systems.
The ruggedized industrial enclosure shields internal sensing and micro-processing electronics from ambient cabinet dust and electromagnetic interference. Providing real-time visual status updates via an LED bar graph and switching output relays, this hardware preserves electrical safety compliance under continuous plant floor operation.
3. Core Technical Specifications
| Parameter | Value |
| Device Type | Residual Current Monitor (RCM) for TN and TT Systems |
| Series Compatibility | Bender RCM470LY / RCM475LY Monitoring Architecture |
| Rated Supply Voltage (U_s) | 90…132 V AC (Model “-13” specification variant) |
| Measuring Current Input | Internal measuring current transformer (\varnothing 18 mm internal diameter) |
| Current Type Compatibility | Type A according to IEC/TR 60755 (AC and pulsating DC currents) |
| Response Value Range | Adjustable operating thresholds for precise leak detection |
| Output Contacts | Potential-free changeover relay contacts (N/O or N/C selectable) |
| Operating Temperature Range | -25 °C to +70 °C (-13 °F to +158 °F industrial duty limits) |
| Enclosure Protection Class | IP30 internal components, IP20 terminal blocks (IEC 60529) |
4. Global Compliance & Industry Certifications
- Expected Regulatory Approvals: CE Mark, DIN EN 62020 (VDE 0663) compliance, IEC 62020 device standards, IEC 60664-1 insulation coordination, and RoHS environmental directives.
- Safety & Compliance Impact: Compliance with strict international residual current device (RCD/RCM) standards ensures that minor insulation faults are flagged instantly, preventing electrical fires, equipment damage, and operator shock hazards in industrial environments.
- Verify specific lot certifications with OEM.
5. Long-Term Storage & Asset Preservation Guide
Keep this monitoring relay sealed inside its original anti-static and moisture-barrier packaging to protect internal printed circuit boards and electronic components from electrostatic discharge events. Maintain warehouse storage conditions at a relative humidity level strictly below 60% and temperatures between -40 °C and +70 °C to prevent micro-oxidation on screw terminals. Store the unit upright on shelving racks, avoiding heavy stacking loads that could crack the transparent plastic cover.
6. Physical Installation Prerequisites
- Verify that the DIN-rail mounting base is securely fixed and grounded inside an appropriate electrical control cabinet prior to module insertion.
- Ensure that supply voltage levels match the specific “-13” rating (90…132 V AC) precisely before energizing the device.
- Route monitoring sensor cables and control wiring separately from high-voltage power feeds to eliminate electromagnetic coupling and prevent false tripping.
7. Buyer’s FAQ (Logistics & Compliance Focus)
- Q: What Harmonized System (HS) code applies for international customs clearance on this Bender monitor?
- A: Electrical relays, residual current monitors, and automatic circuit safety controls typically classify under HS code 8536.30 or 8536.49. Confirm local code accuracy with your trade compliance broker.
- Q: Does this specific model feature an internal or external current transformer?
- A: The RCM475LY variant features an integrated internal measuring current transformer with an 18 mm opening, simplifying wiring compared to remote sensor configurations.
- Q: How does the Country of Origin (COO) documentation affect our import compliance audit?
- A: Manufacturing origin records correspond to authorized European production facilities within Bender’s electrical safety division. Check commercial invoice documentation for precise country details to satisfy trade treaty requirements.
- Q: Is specialized transit insurance recommended during shipment?
- A: Yes. Because electronic monitoring relays contain sensitive internal microelectronics and display indicators, comprehensive transit insurance guarding against mechanical shock and vibration damage is strongly advised
