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Allen Bradley 817S-PTC-48 MachineAlert Thermistor Relay

Allen Bradley 817S-PTC-48 Thermistor Monitoring Relay

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ManufacturerAllen Bradley

Part number817S-PTC-48

Type Thermistor Monitoring Relay

Voltage Rating 24-48V AC/DC

Control Power 24-48V AC/DC

Features PTC Thermistor Input Monitoring, Adjustable Trip Settings, LED Indicators, Automatic Reset

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12-month warranty

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Same-day dispatch

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Worldwide delivery

US, EU, Asia, Middle East

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Veteran-owned

CAGE: 9NK75

24-48V AC/DC Control Power PTC Thermistor Monitoring Over-Temperature Protection Adjustable Trip Settings LED Status Indicators Compact Design

Product description

The Allen Bradley 817S-PTC-48 is a Thermistor Monitoring Relay engineered for reliable thermal protection of motors and equipment. It monitors PTC thermistor inputs to detect over-temperature conditions, preventing damage and extending equipment life. This model operates on 24-48V AC/DC control power, offers adjustable trip settings for application flexibility, and includes LED indicators for easy status monitoring. Its compact design facilitates installation in space-constrained control panels.

This relay is well-suited for protecting motors in HVAC systems, conveyor systems, and other industrial machinery where precise temperature control is necessary. It is compatible with a variety of thermistors and integrates smoothly with Allen-Bradley automation solutions.

Stanlo Automation, a veteran-owned surplus parts distributor, is your go-to source for quality industrial automation components. We pride ourselves on offering dependable parts and exceptional service to keep your operations running smoothly.

Technical specifications

Type	Thermistor Monitoring Relay
Voltage Rating	24-48V AC/DC
Control Power	24-48V AC/DC
Features	PTC Thermistor Input Monitoring, Adjustable Trip Settings, LED Indicators, Automatic Reset

Common applications

HVAC Systems

Conveyor Systems

Industrial Machinery

Automation

Motor Control

Compatible systems

Compatible with PTC thermistors and suitable for low-voltage control circuits.

Also known as

817S PTC 48V Allen Bradley Low Voltage Relay MachineAlert 817S-PTC-48

Replaces / compatible with

This relay is part of the Allen-Bradley 817S MachineAlert series, providing essential thermal protection for motors and equipment.

Technical note

Expert tip

The 817S-PTC-48's compact design allows for easy integration into control panels with limited space, without compromising its protective capabilities.

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Frequently asked questions

What is the control voltage range for the Allen Bradley 817S-PTC-48?

The Allen Bradley 817S-PTC-48 Thermistor Monitoring Relay operates with a control power voltage range of 24 to 48V AC/DC. This versatility makes it suitable for a wide array of low-voltage industrial applications.