Technical Review: Delixi CDZ9 5A 220VAC Intermediate Relay - Selection Guide & Specs
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Overview
The Delixi CDZ9-53M intermediate relay solves critical industrial control challenges by providing reliable signal amplification and electrical isolation in complex automation systems. This compact 5A relay efficiently bridges the gap between low-power control circuits and high-power loads, eliminating the need for oversized contactors in applications requiring precise switching operations.
Technical Analysis
The CDZ9-53M represents Delixi's commitment to industrial-grade reliability in relays and control components. With its 220VAC coil voltage and 5A contact rating, this intermediate relay is specifically engineered for demanding industrial environments where space constraints and reliability are paramount.
| Specification | Value | Description |
|---|---|---|
| Contact Configuration | 3 NO + 2 NC | Three normally open and two normally closed contacts |
| Contact Rating | 5A @ 240VAC | Maximum switching capacity |
| Coil Voltage | 220VAC | Operating voltage for electromagnetic coil |
| Contact Material | Silver Alloy | Ensures low contact resistance and long life |
| Electrical Life | ≥ 100,000 cycles | Minimum operational lifespan |
| Mechanical Life | ≥ 10,000,000 cycles | Physical durability rating |
| Contact Resistance | ≤ 100mΩ | Maximum resistance across contacts |
| Operating Temperature | -25°C to +55°C | Environmental operating range |
| Mounting | DIN Rail | Standard industrial mounting system |
| Terminal Type | Screw Clamp | Secure wire connection method |
Application Scenarios
The Delixi CDZ9-53M intermediate relay excels in various industrial applications including PLC output expansion, motor control circuits, lighting control systems, and safety interlock circuits. Its compact design makes it ideal for control panels where space optimization is critical while maintaining reliable performance in industrial automation systems.
Buying Considerations
When selecting the Delixi CDZ9-53M intermediate relay for your application, consider these critical factors:
Voltage Compatibility: Ensure your control circuit voltage matches the 220VAC coil rating. For different voltage requirements, Delixi offers variants with 24V, 110V, and 380V coil options.
Contact Configuration: The 3 NO + 2 NC configuration provides flexibility for complex control logic. Evaluate your circuit requirements for normally open and normally closed contacts.
Load Requirements: The 5A rating is suitable for most control applications, but verify your load current doesn't exceed this specification. For higher current applications, consider contactors instead.
Environmental Conditions: The operating temperature range of -25°C to +55°C makes it suitable for most industrial environments, but verify your specific application conditions.
Mounting and Wiring: The DIN rail mounting and screw clamp terminals provide easy installation in standard industrial control panels.
Frequently Asked Questions
Q: What is the difference between an intermediate relay and a contactor?
A: Intermediate relays like the Delixi CDZ9-53M are designed for control circuit applications with lower current ratings (typically 5-10A), while contactors handle higher power loads. Intermediate relays provide signal amplification and isolation between control circuits and power circuits.
Q: Can I use this relay for DC voltage switching?
A: The CDZ9-53M is rated for AC voltage switching up to 240VAC. For DC applications, you would need a DC-rated relay variant. The contact rating for DC is typically lower than AC due to arc suppression challenges.
Q: How do I determine if the 5A contact rating is sufficient for my application?
A: Calculate the maximum current your load will draw under all operating conditions. Include inrush currents for inductive loads like motors or transformers. If your calculated current exceeds 5A, consider using a contactor or a relay with higher current rating. Always include a safety margin of at least 20%.
