JANSSEN E05.1680 | Amplifier Board Rack Module 08.1680.L2

Product Overview

The JANSSEN E05.1680 is an amplifier board/rack module associated with Rolf Janssen GmbH Elektrotechnische Werke. The module is identified by the additional marking 08.1680.L2 and is designed for use within industrial electrical and control equipment.

The available nameplate information identifies a +24 VDC supply, with an operating supply range of 18–31 VDC. The module is rated for up to 250 V and 3 A, with a stated maximum of 30 W / 60 VA. The listed operating temperature range is -20°C to +60°C.

This type of legacy Janssen module can be useful when maintaining existing control cabinets, marine electrical systems, or equipment where the original hardware must be retained rather than replaced with a newer design.

Key Features

Manufacturer: Rolf Janssen GmbH Elektrotechnische Werke
Model: E05.1680
Module marking: 08.1680.L2
Product type: Amplifier Board / Rack Module
Supply: +24 VDC
Supply range: 18–31 VDC
Maximum voltage: 250 V
Maximum current: 3 A
Maximum rating: 30 W / 60 VA
Operating temperature: -20°C to +60°C
PTB identification: Ex-86/2131 X
Legacy industrial control hardware suitable for replacement and maintenance applications

Technical Datasheet

Parameter	Specification
Brand	JANSSEN / Rolf Janssen
Model	E05.1680
Module Marking	08.1680.L2
Product Type	Amplifier Board / Rack Module
Manufacturer	Rolf Janssen GmbH Elektrotechnische Werke
PTB No.	Ex-86/2131 X
Supply Voltage	+24 VDC
Supply Range	18–31 VDC
Maximum Voltage	250 V
Maximum Current	3 A
Maximum Power	30 W
Maximum Apparent Power	60 VA
Operating Temperature	-20°C to +60°C
Additional Marking	89135 / 89138 / related production markings may vary
Application	Industrial electrical/control equipment
Condition	Verify actual item condition before purchase

The product records show slightly different production/serial markings on individual units, while the core E05.1680 and 08.1680.L2 identification remains consistent.

Installation & Replacement Notes

Before installation, compare the module’s complete nameplate with the existing unit. Pay particular attention to:

E05.1680 model identification.
08.1680.L2 board/module marking.
Supply voltage and polarity.
Terminal arrangement and wiring.
Current and load requirements.
Existing rack or control-system configuration.

The 24 VDC supply should remain within the stated 18–31 VDC range. Do not apply AC power or a DC voltage outside the specified range.

For replacement work, photograph the original wiring before removal and verify terminal positions after installation. If the module is part of a safety- or hazardous-area-related system, the complete system certification and installation documentation should be checked rather than assuming that the board alone provides a particular protection rating.

Typical Applications

The E05.1680 may be encountered in:

Legacy industrial control cabinets
Marine electrical and automation equipment
Relay/amplifier control circuits
Older process-control systems
Electrical interface and signal-conditioning assemblies
Maintenance and emergency spare-parts inventories

Because this is legacy equipment, confirming the exact board marking and electrical ratings is more important than relying only on a general product family description.

Maintenance Recommendations

Keep the module in a dry, clean environment when stored as a spare. Avoid static discharge when handling the PCB and use suitable ESD precautions.

For installed equipment:

Check terminals for looseness or oxidation.
Inspect the PCB for discoloration or damaged components.
Confirm that the DC supply remains within specification.
Check for abnormal heating during operation.
Keep ventilation paths and cabinet interiors clean.
Record the installed module’s identification and production markings for future replacement.

FAQ

Q: What is the main model number?
A: The primary model identification is E05.1680, with 08.1680.L2 appearing as an additional module/board marking.

Q: What power supply does it use?
A: The available product data specifies +24 VDC, with a supply range of 18–31 VDC.

Q: What is the maximum current rating?
A: The listed maximum current is 3 A.

Q: What is the maximum voltage rating?
A: The available specification lists Umax as 250 V.

Q: What is the temperature range?
A: The listed operating range is -20°C to +60°C.

Q: Is 08.1680.L2 a different model?
A: It appears as an additional identification/board marking associated with E05.1680 rather than a separate unrelated product. Confirm the complete marking before ordering.

Q: Is this suitable as a replacement for an existing E05.1680?
A: It can be considered when the model, board marking, electrical ratings, connector arrangement, and system configuration all match the installed unit.

Q: Is the module new or used?
A: Condition depends on the specific seller inventory. The referenced marketplace listing identifies the unit as used.

Related JANSSEN Identification

For purchasing and maintenance searches, the following identifiers are useful:

JANSSEN E05.1680
JANSSEN 08.1680.L2
PTB Ex-86/2131 X
M 0.125/250 C
89135 / 89138 / 89146
24 VDC E05.1680
E05.1680 Amplifier Board
E05.1680 Rack Module
E05.1680 PCB
E05.1680 Relay Amplifier

These identifiers are drawn from available product records and may correspond to different production or individual-unit markings, so they should be used as search/reference identifiers rather than assumed interchangeable part numbers.