Shubhada Enterprises

Switching Power Supply : DIN Rail Switching Mode Power Supplies SPB-A Series

 

The SPB-A series switching mode power supplies allows space-saving installation with a slim and compact design. The SPB- A series also features easy and secure connection with rising clamp type terminals. The switching mode power supplies offer stable performance over a wide temperature range. The series features excellent environmental resistance with overcurrent/overvoltage protection and overheating prevention functions.

 

Main features

• Wide Range of Power Capacities and Output Voltages - The SPB-A series allows optimized power solutions in diverse environments with power range from 15W to 480W.
• Slim and Compact Design - The power supplies now more compact in size compared to previous models, allowing installation in tighter spaces.
• Wide Temperature Range - The SPB-A series has a more comprehensive ambient temperature range compared to previous models and can operate in temperatures ranging from -20°C to 70°C.
• Excellent Environmental Resistance - The SPB-A series features excellent environmental resistance with overcurrent/overvoltage protection and overheating prevention functions.
• Easy to Check Operation Status -Users can easily check the operation status with an output low-voltage indicator (red LED) and an output indicator (green LED).
• Simple and Easy Installation - The SPB-A series allows saving time and simple and easy installation with rising clamp type terminal blocks.
• DIN Rail Mount and Screw Mount Methods - DIN rail mount and screw on mounting is possible for higher installation flexibility.

 

Applications

• Rechargeable Battery Coating Machinery
• Chip Bag Filling, Sealing, and Cutting
• Rechargeable Battery Mixing Machinery

Models

NHP Power Systems LLP (Pune) produces a variety of SMPS units designed for rugged industrial use. Their product line is generally divided into Enclosed (ES/LES), Compact (PES), and Open Frame (OS) series.

1. The Best-Selling SMPS Series 2. Common Model Numbers & Specs

Most NHP model numbers include the wattage or current in the name.

A. 24V DC Units (Industrial Standard)

• NHP-PES-24 (1A): Very slim, plastic case. Good for a single HMI or a few sensors.

• NHP-ES-75 (3A): Enclosed metal case. High reliability for standard automation.

• NHP-ES-120 (5A): The most popular "workhorse" model for general PLC panels.

• NHP-ES-240 (10A): Used for larger systems with multiple solenoids or actuators.

• NHP-LES-350 (15A): High-current unit often used for motors or large LED arrays.

• NHP-LES-600 (25A): Their highest-capacity standard enclosed unit.

B. 12V DC Units

•  NHP-PES-24 (2A): Compact 12V source for CCTV or small electronics.

• NHP-ES-75 (5A): Enclosed 12V unit for moderate loads.

• NHP-ES-120 (10A): High-power 12V supply.

3. Key Technical Specifications

Across almost all NHP models, you will find these standard features:

• Input Range: Typically 170V to 270V AC (optimized for Indian power grids), though some newer PES models support 90V to 300V AC.

• Efficiency: Generally >85%, which keeps the units cool during 24/7 operation.

• Temperature: Rated for -20°C to +85°C, making them suitable for hot factory environments.

• Protections:

  • Input: Under-voltage (cut-off at 140V) and Over-voltage (shuts off above 310V).

  • Output: Continuous short-circuit and overload protection with auto-recovery.

• Mounting: Most ES and PES models come with a dual-mounting system for both DIN Rail and Wall/Panel mounting.

4. Special Application: Battery Chargers

NHP is also famous for their BC Series (Battery Chargers), which look like SMPS but have specialized "Three-Stage" charging logic for Lead-Acid/VRLA batteries.

• Common Model: BC 24V 10A (Sirius Brand) — often used for Diesel Generator (DG) set battery charging.