Finder 77 Series Solid State Relay, 50 A Load, Heatsink, 280 V ac Load, 230 V ac Control

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Finder 77 Series Solid State Relay, 50 A Load, Heatsink, 660 V ac Load, 230 V ac Control
RS Stock No.
800-2950

Each

£66.46

(exc. VAT)

£79.75

(inc. VAT)

RS Stock No.:
800-2956
Mfr. Part No.:
77.55.8.230.8250
Brand:
Finder
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Brand

Finder

Maximum Load Current

50 A

Mounting Type

Heatsink

Maximum Load Voltage

280 V ac

Minimum Load Voltage

21.6 V ac

Maximum Control Voltage

230 V ac

Switching Type

Zero Cross

Control Voltage Range

90 → 280 V ac

Minimum Load Current

250 mA

Contact Configuration

SPST

Terminal Type

Screw

Package Style

Hockey Puck

Maximum Turn On Time

40ms

Load Voltage Range

21.6 → 280V ac

Series

77

Dimensions

44.5 x 36.4 x 57.7mm

Off State Leakage Current

10 mA

Operating Temperature Range

-30 → +80°C

Height

36.4mm

Length

57.7mm

Depth

44.5mm

COO (Country of Origin):
IN

Finder Series 77 Solid State Relay, 50A Maximum Load Current, 280V AC Maximum Load Voltage - 77.55.8.230.8250


This solid state relay is designed for industrial applications. With a maximum load current of 50A and a load voltage range of 21.6 to 280V AC, it offers reliable performance in demanding environments. The dimensions are 44.5 x 36.4 x 57.7mm, making it suitable for various mounting configurations.

Features & Benefits


• Minimal switching noise due to silent operation
• High-speed switching caters for rapid applications
• Zero cross switching enhances operational safety
• High electrical lifespan ensures minimal maintenance
• Suitable for resistive loads, reducing operational risks
• Robust terminal type provides secure connections

Applications


• Utilised in industrial systems
• Appropriate for requiring frequent switching
• Ideal for resistive load control in machinery
• Employed in control panels for electrical devices
• Commonly integrated into electrical heating

How does the operating temperature range affect use cases?


The operating temperature range of -30°C to +80°C allows for versatile usage in both cold and hot environments, ensuring consistent performance in varied conditions.

What is the significance of zero cross switching?


Zero cross switching minimises voltage spikes during operation, enhancing the reliability and longevity of connected devices, while also reducing electromagnetic interference.

Can it be mounted in different configurations?


Yes, it supports heatsink mounting with screws, allowing for easy integration within various setups and ensuring optimal heat dissipation during operation.

What are the typical applications for its high load current capability?


Its 50A load current capability makes it well-suited for demanding industrial processes such as motor controls, lighting systems, and thermal regulation applications.

Is it suitable for use with both AC and DC loads?


This relay is specifically optimised for AC applications, with specified input ranges tailored for AC voltage operation, making it effective for various industrial control scenarios.


Zero Voltage Relays

Note

Temperature can affect current rating; please consult the data sheet for potential derating.

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