ABB 480W Power Supply 24VDC/20A | CP-C Series

Description

ABB CP-C 24/20.0 Power Supply (Industrial-Grade 480W Solution)

The ABB CP-C 24/20.0 (1SVR427026R0000) represents a professional-grade switch-mode power supply engineered for continuous 24VDC delivery in demanding industrial environments. Combining 480-watt output capacity with universal input compatibility, this DIN rail unit serves as the backbone for automation systems requiring uncompromising power reliability.

Designed for process control installations, manufacturing automation, and critical infrastructure applications, this power supply addresses the fundamental challenge of maintaining stable DC voltage under variable load conditions and harsh environmental extremes. Its compact footprint and parallel operation capability make it the preferred choice for engineers designing fault-tolerant power architectures.

Whether powering distributed I/O networks, PLC systems, or instrumentation loops, the CP-C 24/20.0 delivers consistent performance with built-in protection mechanisms that prevent costly downtime and equipment damage.

Core Capabilities & Technical Advantages

→ Universal Input Flexibility: Accepts 85-264VAC or 100-350VDC without manual switching, eliminating configuration errors during installation and enabling deployment across global voltage standards.

→ Precision Voltage Regulation: Maintains ±1% output stability across full load range with adjustable 22-28VDC output, compensating for long cable runs and application-specific voltage requirements.

→ High Current Capacity: Continuous 20-ampere delivery with 10% power reserve (528W peak) handles transient loads during motor starts, valve actuations, and I/O module hot-swaps.

→ Extended Environmental Range: Operates reliably from -25°C to +70°C ambient, supporting installations in non-climate-controlled enclosures, outdoor cabinets, and extreme industrial settings.

→ Redundancy Architecture Support: Parallel operation with automatic load sharing enables N+1 configurations for mission-critical systems requiring 99.99% uptime.

→ Low Electrical Noise: Ripple <150mVpp protects sensitive analog instrumentation and prevents interference with 4-20mA measurement loops in process control applications.

Industrial Application Scenarios

✓ Manufacturing Automation Systems

Powers PLC racks, servo controllers, and pneumatic valve banks in packaging lines, CNC machining centers, and assembly robots. The wide operating temperature range supports installation in factory floor environments where ambient conditions fluctuate seasonally, while the 10% power reserve accommodates inrush currents during simultaneous actuator activation.

✓ Process Control & Instrumentation

Supplies stable DC power to transmitter networks, analyzer systems, and fieldbus segments in chemical plants, refineries, and water treatment facilities. Low output ripple ensures measurement accuracy for custody transfer applications, while the universal input range simplifies spare parts inventory for multinational operations.

✓ Building Infrastructure Management

Energizes HVAC controllers, access control panels, and fire alarm systems in commercial facilities. Parallel redundancy capability meets life-safety code requirements for critical systems, and the compact DIN rail format maximizes usable space in crowded electrical rooms.

✓ Transportation & Traffic Control

Drives railway signaling equipment, tunnel ventilation controllers, and intelligent traffic systems. The 100-350VDC input capability accepts power from traction substations and battery backup systems, while robust EMC compliance prevents interference with communication networks.

✓ Renewable Energy Installations

Provides control power for solar inverter monitoring, wind turbine pitch systems, and battery storage controllers. Wide input voltage tolerance handles fluctuations from generator-based microgrids, and the convection cooling design eliminates fan maintenance in remote locations.

Technical Parameters & Selection Guide

Parameter	Specification	Application Note
Model Number	CP-C 24/20.0	Part of ABB's CP-C industrial power supply family
Manufacturer Code	1SVR427026R0000	Factory order reference for procurement
Input Voltage	85-264 VAC / 100-350 VDC	Auto-sensing, no manual selection required
Input Frequency	47-63 Hz	Compatible with generator and UPS sources
Output Voltage	24 VDC nominal (22-28 VDC adjustable)	Front potentiometer for field adjustment
Output Current	20 A continuous	Derate 2.5% per °C above 60°C ambient
Output Power	480 W rated / 528 W peak (5 sec)	10% reserve for transient loads
Efficiency	≥91% @ 230VAC full load	Reduces heat generation and energy costs
Power Factor	≥0.95 with active PFC	Complies with EN 61000-3-2 harmonic limits
Hold-up Time	≥20 ms @ 230VAC	Bridges brief power interruptions
Operating Temp	-25°C to +70°C	Full power to 60°C, then derate
Isolation	3 kVAC input-output	Meets reinforced insulation requirements
Dimensions	125 × 124 × 117 mm (W×H×D)	Requires 50mm clearance above/below
Mounting	DIN rail EN 60715 TH35	Vertical orientation required for cooling
Protection Class	IP20	Requires installation in enclosed cabinet

Selection Criteria

Choose CP-C 24/20.0 when you need: 15-20A continuous load capacity, redundancy capability, wide temperature operation, or global voltage compatibility. For lower power requirements (3-10A), consider ABB's CP-E or CP-S series. For higher power (30-40A), evaluate the CP-C 24/40.0 model.

Load Calculation: Sum all connected device currents, add 20% safety margin, verify total ≤20A. For inductive loads (contactors, solenoids), multiply steady-state current by 1.5× to account for inrush.

Extended Functions & System Integration

Parallel Redundancy Configuration

Multiple units operate in parallel using external Schottky diodes (40A/45V recommended) or the ABB CM-PFS redundancy module for active ORing. Each supply automatically load-shares via its U/I output characteristic. In N+1 configurations, failure of one unit transfers load to remaining units without output voltage interruption, ensuring continuous operation for critical processes.

Output Voltage Adjustment

The front-accessible potentiometer enables field adjustment from 22-28VDC to compensate for voltage drop in long cable runs (up to 100 meters) or to match specific equipment requirements. Adjustment under load with a calibrated multimeter ensures accurate setting. Lock the adjustment screw after configuration to prevent unauthorized changes.

Monitoring & Diagnostics Integration

Add the optional CM-MSS.1 messaging module to provide relay contact outputs for DC-OK and fault signaling to SCADA systems, analog 4-20mA output proportional to load current for predictive maintenance, and remote ON/OFF control capability. The CM-IWS.1 web interface module enables SNMP and Modbus TCP monitoring for Industry 4.0 integration.

IoT & Remote Monitoring

When equipped with communication modules, the power supply integrates with building management systems, industrial IoT platforms, and cloud-based analytics services. Real-time monitoring of output voltage, load current, and operating temperature enables predictive maintenance strategies that reduce unplanned downtime.

Customization Options

ABB offers factory customization including conformal coating for harsh chemical environments, extended temperature range variants (-40°C to +70°C), marine certifications (DNV-GL, ABS), and custom output voltages (12VDC, 48VDC) for OEM applications with minimum order quantities.

Delivery Timeline & Service Commitment

Lead Time

Standard Configuration: Ships within 3-5 business days from our regional distribution centers. Express shipping available for urgent requirements.
Custom Configuration: Factory customization requires 4-6 weeks lead time depending on specification complexity and current production schedule.

Warranty Coverage

5-year manufacturer warranty from date of production (verify warranty period on product label). Coverage includes defects in materials and workmanship under normal operating conditions. Extended warranty programs and advance replacement services available for critical applications requiring guaranteed uptime.

Technical Support

Our application engineering team provides pre-sales consultation for system design, load calculations, and redundancy architecture planning. Post-sales support includes installation guidance, troubleshooting assistance, and firmware updates for units with communication modules. Support available via email, phone, and remote diagnostics.

Documentation Package

Each unit ships with installation manual (Document ID: 2CDC135047M0201), quick start guide, safety instructions, and conformity declarations. Digital resources include 3D CAD models (STEP format), 2D dimensional drawings (DXF), wiring diagrams, and application notes available for download.

Frequently Asked Questions

Can this power supply operate with DC input voltage from battery systems?

Yes, the CP-C 24/20.0 accepts 100-350VDC input, making it compatible with battery backup systems, solar installations, and traction power networks. The wide DC input range accommodates voltage fluctuations during battery discharge cycles without affecting output regulation.

What wire gauge is required for 20-ampere output connections?

Use minimum 12 AWG (4 mm²) copper wire for output connections carrying 20A continuous current. For cable runs exceeding 50 meters, increase to 10 AWG (6 mm²) to minimize voltage drop. Screw terminals accept 0.5-4 mm² wire; use ferrules for stranded wire to ensure reliable contact.

How much energy savings does the high efficiency provide?

At 91% efficiency versus a typical 85% efficient supply, the CP-C 24/20.0 reduces heat dissipation by approximately 35 watts at full load. Over 8,760 hours annual operation, this saves roughly 300 kWh per year, reducing energy costs and cooling requirements in enclosed cabinets.

Does the unit require forced air cooling or ventilation fans?

No external cooling is required. The CP-C 24/20.0 uses convection cooling with internal heat sinks. Ensure 50mm clearance above and below the unit for adequate airflow. For ambient temperatures exceeding 60°C, derate output current by 2.5% per degree or add forced ventilation to the enclosure.

Can I monitor the power supply status remotely for predictive maintenance?

Yes, when equipped with the optional CM-MSS.1 messaging module or CM-IWS.1 web interface module. These accessories provide relay outputs, analog current monitoring, and network connectivity (SNMP, Modbus TCP) for integration with SCADA, BMS, or IoT platforms. Modules are field-installable without tools.

What protection mechanisms prevent damage during short circuit conditions?

The unit features automatic current limiting with U/I characteristic, hiccup-mode short circuit protection with auto-restart, electronic overvoltage protection (29-33VDC limit), and thermal shutdown with automatic recovery. These protections operate without user intervention and do not require fuse replacement after fault clearance.

Secure Your Industrial Power Infrastructure

The ABB CP-C 24/20.0 power supply delivers the reliability, flexibility, and performance your automation systems demand. Whether you're designing a new installation or upgrading existing infrastructure, our technical team is ready to assist with application-specific guidance and system integration support.

Next Steps: Contact our sales engineering team to discuss your power requirements, request detailed technical specifications, or place your order. Volume pricing and custom configuration options available for OEM and system integrator partners.