Product Details
The ABB 3BHB017688R0001, also cataloged as the 3BHB017688R0001 Isolated Power Supply, operates as a dedicated hardware component for galvanic isolation and DC voltage conversion within ABB control cabinets and drive system architectures. Converting a wide-range AC input of 90-264 VAC into a regulated 24 VDC output at 1 A continuous load, the unit delivers stable power while maintaining galvanic separation across system power buses.
Hardware Specifications
| Parameter | Specification |
|---|---|
| Model | 3BHB017688R0001 |
| Brand | ABB |
| Weight | Shipping Weight: 3 kg |
| Dimensions | 100 x 60 x 25 mm |
| Operating Temp | Standard Control Panel Ambient (-20 to 60 deg C) |
| Power Consumption | Load-dependent / 24 W Output Rating |
| Input Voltage Range | 90-264 VAC |
| Output Voltage | 24 VDC |
| Output Current | 1 A |
| Output Ripple | <1% |
| Isolation Voltage | 3000 VRMS |
Backplane Power Isolation and Deterministic Power Rails
The 3BHB017688R0001 provides high galvanic isolation rated at 3000 VRMS to prevent ground loop currents and transient voltage spikes from propagating between field power sources and logic control buses. By suppressing output voltage ripple below 1%, the assembly maintains stable power conditions for attached backplane communication interfaces and sensor loops. This clean DC rail preserves firmware flash compatibility and prevents communication drops on Profinet / EtherNet/IP deterministic networks during line supply fluctuations.
Frequently Asked Questions
Q: What protection does the 3000 VRMS isolation specification provide in field applications?
A: The 3000 VRMS galvanic isolation protects internal processing electronics and backplane buses from high-voltage surges, fault currents, and ground loops originating on the AC input lines.
Q: How does the output ripple specification impact sensitive automation I/O loops?
A: An output ripple held under 1% ensures clean 24 VDC power, preventing signal noise or measurement drift on connected analog transducers and controller backplane logic cards.
Q: What input AC line limits are supported by the integrated power conversion stage?
A: The internal switching circuitry accepts a universal single-phase AC input range from 90 VAC to 264 VAC without requiring physical jumper reconfigurations.
Field Installation Guidelines
- Power Lockout: Disconnect and lock out the main AC input source before making any wiring connections to the power supply terminals.
- Clearance and Airflow: Mount the unit on a standard panel surface or rail assembly maintaining adequate vertical clearance above and below the module to allow convection thermal dissipation.
- Terminal Wiring: Crimp wire ferrules onto incoming AC lines and outgoing 24 VDC cables before securing them into screw terminals to ensure low contact resistance.
- Protective Earth Grounding: Secure a low-impedance ground wire to the designated PE grounding terminal to enable surge suppression and isolation shielding functionality.
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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