steve
Got hold of Sime for a Carrier card for…
Got hold of Sime for a Carrier card for a chiller. Machine down in a factory. Received the new card in express time machine and plant now up and running fantastic service form Sime
3 months ago
7KT5500
Siemens 7KT5500 available at EU Automation. Get in touch today for a quick price.
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What happens next?
1. Email confirmation
You will get an email confirming that we have received your enquiry.
2. Dedicated Account Manager
One of our team will be in touch to confirm your part(s) specification and condition.
3. Your quote
You will receive a comprehensive quote tailored to your specific needs.
The Siemens 7KT5500 is an electronic time counter designed for reliable operating-hours monitoring in industrial panels and control equipment. Built in a compact 48 x 48 mm format for front panel mounting, it provides clear analog time indication with a 7-digit display, making it well suited to applications where equipment runtime needs to be recorded for maintenance planning, usage tracking, and system monitoring. This model operates on 10–80 V DC, features a non-resettable counting function, and has an IP20 protection rating. Supplied without a masking frame, the 7KT5500 offers a practical, space-saving solution for straightforward hour counting in a wide range of automation and electrical installations.
| Specification | Description |
|---|---|
| Part number | 7KT5500 |
| Manufacturer | Siemens |
| Brand | SENTRON |
| Product type | Electronic time counter |
| Operating principle | Analog operating hours counter |
| Voltage type | DC |
| Operating voltage range | 10–80 V DC |
| Product design | Without cover / masking frame |
| Reset function | No |
| Display capacity | 7 characters |
| Protection rating | IP20 |
| Mounting type | Front panel mounting |
| Front panel cutout | 50.2 mm diameter |
| Front dimensions | 48 mm x 48 mm |
| Body dimensions | 45 mm x 45 mm |
| Installation depth | 34 mm |
| Net weight | 58 g |
What does this time counter do?
This unit is designed to record and display accumulated operating hours. It is typically used in control panels and electrical equipment where a visible, ongoing record of runtime is needed for monitoring usage and planning routine maintenance intervals.
What supply voltage does it require?
It is intended for DC operation and is specified for 10-80 V DC. This makes it suitable for a broad range of low-voltage DC panel applications.
Is the display analog or digital?
The counter works on an analog operating-hours principle rather than using a programmable digital interface. It provides a straightforward visual reading of elapsed hours.
Can the counter be reset?
No. According to the published specification, this model does not include a reset function, so it is intended to provide a permanent accumulated hours reading.
How many digits can be displayed?
The display provides 7 characters, allowing the operating hours total to be shown clearly over a long service period.
What mounting style does it use?
This is a front panel mounting design. It is built for installation into a panel face so the reading remains visible from the outside of the enclosure.
What panel cutout size is required?
The datasheet states a front panel cutout of 50.2 mm. For best fit, the panel preparation should be checked against the equipment drawing before installation.
What are the main dimensions of the unit?
The body dimensions are 45 mm high by 45 mm wide, with a front plate size of 48 mm by 48 mm. The installation depth is 34 mm. The 7KT5500 is compact, making it suitable for space-conscious panel layouts.
Does it include a masking frame or cover?
No. This version is specified without a masking frame or cover, so that detail should be considered when matching it to an existing panel opening or bezel arrangement.
What is the enclosure protection rating?
The unit is rated IP20. This means it is intended for installation within an enclosure or panel environment rather than exposed use.
Is it suitable for AC-powered applications?
This model is specified for DC voltage only. If the application uses AC power, a different counter type would usually be required.
What kind of applications is this product commonly used in?
It is commonly used wherever operating hours need to be tracked on machinery, control panels, switchboards, or other electrical assemblies. Typical uses include runtime indication for motors, pumps, fans, and general industrial equipment.
How heavy is the unit?
The net weight is 58 g, which helps keep panel loading low in compact assemblies.
Is this a good choice for replacing an existing panel hour meter?
It can be a practical replacement option when the existing unit matches the same mounting approach, DC voltage requirement, panel space, and non-resettable hour-counting function. Checking the cutout size, front dimensions, depth, and voltage range is the best way to confirm suitability.
- Recording operating hours on industrial control panels and equipment enclosures
- Monitoring runtime for motors, pumps, fans, and compressors in machine assemblies
- Supporting preventive maintenance planning by showing accumulated operating time
- Tracking usage hours on generators, power systems, and auxiliary electrical equipment
- Measuring active running time on conveyors, packaging machines, and processing equipment
- Providing a simple visual hour count for DC-powered machinery and control circuits
- Adding elapsed-time indication to OEM panels, custom-built machines, and retrofit projects
- Logging equipment utilization in workshops, production lines, and plant installations
- Monitoring duty time for HVAC-related electrical equipment and ventilation systems
- Counting operating hours for test benches, laboratory setups, and demonstration units
- Indicating service intervals for mobile equipment, battery-based systems, and utility vehicles
- Giving maintenance teams a clear panel-mounted reference for machine hour accumulation
This content has been produced using multiple sources. EU Automation takes no responsibility for the accuracy of this information. Always consult the original equipment manufacturer for the most up to date instructions and information.
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Customer reviews
steve
Daniel
Excellent customer service...
Alex Bailey is my main point of contact at EU Automation...he is extremely friendly, has exceptional customer service skills and always offers great pricing & lead times.
4 months ago
Jerry Schrink
Tom Higgins provided amazing service
Tom Higgins provided great prompt service. I contacted Tom by phone and within 10 minutes there was a quote in my in box. WOW Thank you Tom and Thank you EU Automation!
5 months ago
Paulo Pereira
Excellent service and communication…
Excellent service and communication from Alex Bailey. He truly goes above and beyond to ensure his clients are 100% satisfied. The entire process was seamless, and his attention to detail made a huge difference. Highly recommended for anyone looking for amazing service!
5 months ago
Gary
Tom Higgins did a great job at getting…
Tom Higgins did a great job at getting us the part we needed. He saw a concern with the part a verified before shipping.
5 months ago
Lessle Smith
Thomas Higgins has gone above and…
Thomas Higgins has gone above and beyond to make things happen for my facility. His customer service and knowledge were an asset in helping me with my order and the logistics challenges!
6 months ago
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