The SIEBEL&SCHOLL IPS21-35AD is a rugged industrial DIN-rail power supply designed for mission-critical automation systems requiring stable 24VDC power distribution. As part of the IPS21 series, this 35A output module features active power factor correction (PFC >0.95) and 94% conversion efficiency, making it ideal for continuous operation in steel mill control cabinets. The IPS21-35AD’s wide 85-264VAC input range (47-63Hz) ensures reliable performance during voltage fluctuations common in offshore wind turbine installations.
With integrated EN 61131-2 compliance, the SIEBEL&SCHOLL IPS21-35AD provides clean power for sensitive PLC systems and measurement devices. Its parallel operation capability enables N+1 redundancy configurations in pharmaceutical cleanroom ventilation controls. The module’s aluminum alloy housing with IP20 protection and convection cooling design withstands 95% humidity in food processing plants without derating.
Technical Specifications
| Parameter Name | Parameter Value |
|---|---|
| Product Model | IPS21-35AD |
| Manufacturer | SIEBEL&SCHOLL |
| Product Type | Industrial DIN-Rail Power Supply |
| Input Voltage | 85-264VAC (47-63Hz) |
| Output Power | 840W (24VDC @35A) |
| Efficiency | 94% (typical at full load) |
| Protection | Short-circuit/Overload/Overvoltage/Overtemp |
| Cooling | Natural convection (no fan) |
| Operating Temp | -25°C to +70°C (full load up to 60°C) |
| Housing | Aluminum alloy (IP20) |
| Dimensions | 125x124x115mm (WxHxD) |
| Certifications | UL508, CE, EN 61204-3 |
Key Features and Advantages:
Ultra-stable output: The IPS21-35AD maintains ±0.5% voltage stability under 0-100% load steps, crucial for servo motor controllers in robotic assembly lines. Built-in active current sharing allows parallel connection of up to 4 units for 140A total output.
Smart monitoring: LED status indicators and remote sense terminals (+/- 2.5% compensation) enable precise voltage adjustment in conveyor belt control systems. The power reserve function prevents overload tripping during motor startup surges.
Durability: Salt spray tested per EN 60068-2-52 for coastal power substations. The screw terminal block withstands 50N pull force, ensuring secure connections in vibration-intensive mining equipment.
Application Areas:
The SIEBEL&SCHOLL IPS21-35AD excels in:
- Manufacturing: Powering ABB IRB 6700 robotic controllers
- Energy: Distributed I/O power in solar inverter stations
- Transportation: Signaling system power for metro rail networks
- Building Automation: Emergency lighting control in high-rise HVAC
In semiconductor fabs, the module’s low ripple (<75mVpp) prevents interference with wafer inspection lasers. Water treatment plants utilize its 5000m altitude rating for pump station controls in mountainous regions. The 20ms hold-up time ensures uninterrupted power during grid dips for CNC machine tooling operations.
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Installation and Maintenance:
Installation preparation: Verify DIN rail thickness (35mm) and ambient temperature before mounting IPS21-35AD. Allow 50mm clearance above module for heat dissipation in enclosed cabinets.
Maintenance recommendations: Clean ventilation slots annually using dry compressed air (<1 bar pressure). Check terminal torque every 12 months (0.6-0.8Nm). Perform load testing biannually using SIEBEL&SCHOLL PST-100 load bank to verify voltage regulation.
Product Assurance:
HONG KONG SAUL ELECTRICAL LIMITED provides 12-month extended warranty for IPS21-35AD units, including free technical support for parallel configuration. Each module undergoes 72-hour burn-in testing with 110% load cycling. Our global service network guarantees 48-hour replacement for critical infrastructure applications and lifetime access to firmware updates for cybersecurity compliance.
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