Product Details
The ABB DSRF 187 3BSE004985R1, also cataloged as the DSRF 187 Equipment Frame, operates as a dedicated hardware component for high-current AC switching and power distribution interfacing within MasterPiece and Advant Controller platforms.
Hardware Specifications
| Parameter | Specification |
|---|---|
| Model | DSRF 187 3BSE004985R1 |
| Brand | ABB |
| Origin | Standard ABB Manufacturing Facility |
| Weight | 12.7 kg |
| Dimensions | 30.5 cm x 27.9 cm x 48.3 cm |
| Operating Temp | 0 to 55 deg C |
| Power Consumption | AC Supply Driven |
| Rated Operating Voltage | 230 VAC |
| Nominal Operating Voltage | 440 VAC |
| Nominal Operating Current | 24 A |
| Contact Count | 4 Pole Contacts |
| Maximum Load Capacity | Incandescent: 1000 W / Fluorescent: 700 VA / Double Circuit: 1400 VA |
Deterministic Network Switching and Backplane Integration
The DSRF 187 sub-rack frame routes internal high-level power paths while maintaining signal isolation across system rack interfaces. Its internal architecture prevents electrical noise coupling onto high-velocity backplane bus communication paths, allowing remote I/O nodes to maintain deterministic cycle times across Profinet and EtherNet/IP control networks. Standardized module connector geometry guarantees structural firmware flash compatibility and predictable backplane bus communication velocity across scaled I/O density rack configurations.
Frequently Asked Questions
Q: What precautions are necessary regarding power switching limits?
A: Continuous resistive and inductive load execution must strictly abide by the 24 A current limit and specified VA lamp ratings across all 4 pole contacts to prevent terminal degradation.
Q: Does the frame support online module insertion or extraction?
A: Field servicing requires de-energizing the main 230/440 VAC supply lines prior to extraction to prevent arc flash events and backplane voltage spikes.
Q: How does the frame maintain backplane bus signal integrity under heavy load switching?
A: The physical structural chassis features integrated galvanic separation barriers that isolate 440 VAC switching transients from logic-level rack backplane signals.
Field Installation Guidelines
- Verify all primary AC feed lines are de-energized and locked out prior to landing 440 VAC conductors on frame terminals.
- Secure the equipment frame to the cabinet mounting rails using four high-tensile fasteners to accommodate the 12.7 kg assembly weight.
- Ensure protective earth (PE) bonding straps are bolted directly to the frame chassis to establish low-impedance grounding.
- Maintain minimum clearance around thermal exhaust zones to ensure adequate convective air dissipation across switching elements.
Additional Information
- 100% Genuine Parts: All products are original and authentic, ensuring reliable industrial performance.
- 30-Day Refund Guarantee: Return any in-stock item within 30 days in original, unopened packaging for a full refund (excluding shipping and fees).
- 12-Month Warranty: Covers defects in materials or workmanship; excludes misuse, normal wear, or unauthorized modifications.
- Worldwide Shipping: We ship via USPS, UPS, FedEx, and DHL. Delivery times vary by country and may be subject to customs or import fees.
- Support & Contact: Technical and warranty assistance is available anytime. Contact us here: Contact.
- Purchase Guidance: Check product specifications and compatibility carefully before ordering to ensure proper application.
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