Why Choose the Finder 99.01.0.230.98 LED Indication and EMC Suppression Module?
The Finder 99.01.0.230.98 is a plug-in LED indication and EMC suppression module from the Finder 99 Series. Designed for compatible Finder relay sockets, it combines a green LED indicator with a varistor surge suppression circuit to provide visual indication of relay coil energisation and help limit voltage transients during switching.
Operating across a 110–240 V AC/DC voltage range, the module is suitable for relay control circuits using compatible AC or DC coils. Its plug-in construction allows it to be installed in supported Finder relay sockets without requiring a separate external indication and suppression assembly.
The Finder 99.01.0.230.98 is particularly useful in industrial automation, electrical control panels and machinery control systems where clear coil status indication and suppression of switching-related electrical disturbances are required.
Key Advantages
- Dual-function accessory: Combines visual LED indication and varistor-based EMC suppression in one module.
- Green LED indication: Provides a convenient visual indication when the associated relay coil supply is present.
- Varistor surge suppression: Helps limit voltage transients generated when the relay coil is de-energised.
- Wide operating voltage range: Designed for 110–240 V AC/DC relay coil circuits.
- AC and DC compatibility: Suitable for compatible relay installations using either supply type.
- Plug-in installation: Fits supported Finder relay sockets without requiring a separate external suppression module.
- Improved fault identification: The LED assists technicians in checking the presence of the relay coil supply.
- Reduced electrical interference: Varistor suppression helps control switching transients in electrical panels.
- Compact integration: Combines two useful functions within a relay socket accessory.
- Maintenance convenience: Supports replacement or servicing of compatible relay assemblies.
- Finder 99 Series compatibility: Designed as part of Finder's relay indication and EMC suppression accessory range.
Key Features
- Finder 99 Series indication and EMC suppression module.
- Model: 99.01.0.230.98.
- Plug-in module for compatible Finder relay sockets.
- Green LED coil supply indication.
- Integrated varistor for transient voltage suppression.
- 110–240 V AC/DC operating voltage range.
- Suitable for compatible AC and DC relay coil circuits.
- Helps limit reverse-voltage peaks associated with relay coil switching.
- Designed for installation in supported Finder relay socket accessory positions.
- Supports visual inspection of relay coil energisation.
- Suitable for industrial automation and electrical control equipment.
- Provides indication and suppression without performing the relay's switching function.
Technical Specifications
- Manufacturer: Finder
- Series: 99 Series
- Product code: 99.01.0.230.98
- Product type: LED indication and EMC suppression module
- Module configuration: LED indicator with varistor
- LED colour: Green
- Suppression component: Varistor
- Operating voltage: 110–240 V AC/DC
- Minimum operating voltage: 110 V AC/DC
- Maximum operating voltage: 240 V AC/DC
- Supported supply types: AC and DC
- Installation method: Plug-in installation in compatible Finder relay sockets
- Compatible socket examples: Finder 90.20, 90.21, 94.72, 94.73, 94.74, 94.82, 95.63, 95.65, 96.72 and 96.74
- DC connection requirement: Positive supply connected to relay coil terminal A1
- Primary functions: Relay coil supply indication and transient voltage suppression
- Product category: Relay Accessories – LED Indication and EMC Suppression Modules
How the LED Indication and Varistor Suppression Module Works
The Finder 99.01.0.230.98 is designed to operate in conjunction with a compatible Finder relay socket and relay coil. When the appropriate supply voltage is applied to the relay coil circuit, the module's green LED illuminates, providing a visible indication that the coil supply is present.
When an electromagnetic relay coil is de-energised, its stored magnetic energy can generate a transient voltage. The module's integrated varistor helps limit this voltage peak, reducing the electrical disturbance associated with switching the inductive coil.
The varistor provides suppression for compatible AC and DC coil circuits. For DC applications, the positive supply must be connected to the relay coil's A1 terminal to ensure the module is used with the correct polarity.
Unlike a simple LED-only indication module, the 99.01.0.230.98 provides both status indication and transient suppression. The varistor arrangement can also result in only a relatively small increase in relay release time compared with some alternative suppression methods.
The module does not replace the relay, provide an additional switching contact or independently control the connected load. It must be installed with a compatible Finder socket and operated within its specified voltage range.
Typical Applications
- Industrial automation relay control panels.
- Electrical control cabinets using compatible Finder relay sockets.
- Machinery and equipment control circuits.
- Relay coil indication and transient suppression.
- PLC-controlled relay interface assemblies.
- Industrial process automation.
- Motor control auxiliary relay circuits.
- Electrical distribution and switchgear control systems.
- Building automation and HVAC control equipment.
- OEM machinery and industrial equipment manufacturing.
- Control panels requiring visible relay coil supply indication.
- Electrical installations requiring suppression of relay coil switching transients.
- Industrial maintenance and relay accessory replacement.
- Control panel refurbishment and upgrades.
