DSPU/41/855 Protection Relay

Description

The DSPU/41/855 is a digital overload protection relay designed for industrial control systems. It provides reliable monitoring and protection for motors and electrical circuits, ensuring safe operation under overload, short-circuit, and fault conditions. Engineered for high-performance industrial environments, this relay enhances system safety and operational efficiency.

🔧 Technical Specifications

Parameter	Description
Manufacturer	Generic Industrial OEM
Model Number	DSPU/41/855
Product Type	Digital Overload Protection Relay
Origin	United States / OEM Standard
Dimensions	Approx. 120 × 80 × 50 mm
Weight	Approx. 0.5 kg
Power Supply	24–48 VDC / 110–240 VAC optional
Power Consumption	≤ 10 W
Output Type	Relay contacts (NO/NC)
Mounting	Panel or DIN rail
Operating Temperature	-20°C to +60°C
Humidity	5%–95% non-condensing

⚙️ Functional Overview

The DSPU/41/855 relay continuously monitors electrical load and provides:

• Overload protection for motors and circuits
• Digital measurement and indication of current and voltage
• Alarm and trip outputs for fault conditions
• Integration with industrial automation systems

This relay is suitable for industrial motors, pumps, and machinery requiring reliable digital overload protection.

🛠️ Installation & Operation Guidelines

Installation:

• Disconnect system power before mounting.
• Install on a panel or DIN rail according to wiring diagram.
• Ensure proper connection to supply and load terminals.
• Verify relay rating matches system requirements.

Operational Precautions:

• Avoid exposure to moisture and corrosive environments.
• Maintain proper ventilation to prevent overheating.
• Do not exceed rated current or voltage.
• Test relay function periodically as part of maintenance.

Maintenance:

• Inspect terminals and wiring for corrosion or looseness.
• Clean module surface to prevent dust accumulation.
• Replace immediately if relay fails to trip under test conditions.

❓ Frequently Asked Questions (Q&A)

Q1: Can this relay be used with three-phase motors?
Yes, it is suitable for single-phase and three-phase motor protection depending on configuration.

Q2: Is calibration required?
Factory-calibrated; routine verification recommended.

Q3: Can it operate continuously?
Yes, it is designed for continuous industrial use.

Q4: What happens if voltage fluctuates?
Voltage instability may affect operation; a regulated supply is recommended.

Q5: Does it provide alarm outputs?
Yes, it includes configurable relay outputs for alarm and trip signaling.

🔄 Recommended Similar Models

Model Number	Description	Application
DSPU/41/850	Digital Overload Relay	Motor protection
DSPU/41/851	Programmable Protection Relay	Industrial circuits
DSPU/41/852	Thermal Overload Relay	Pump and compressor protection
DSPU/41/853	Multi-Function Digital Relay	Automation systems
DSPU/41/854	High-Speed Trip Relay	Industrial motor drives

✅ Summary

The DSPU/41/855 Digital Overload Protection Relay provides precise, reliable, and robust protection for industrial motors and circuits. Its digital monitoring, configurable trip outputs, and industrial-grade construction make it essential for ensuring safe and efficient operation in demanding control environments.

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One year warranty, special discount after sale
The company focuses on DCS, PLC, robot, large servo four systems
The main products are all kinds of module/card, controller, touch screen, servo drive
The company's advantages: the supply of imported original products, professional production of accessories
Fast delivery time, complete supply, The seller has more than $1526000 worth of industrial control products inventory
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[service contact information]
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E-mail: dcsplcsales@gmail.com
Contact Person: Simon
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