TPS100-320W Peak DR+ DIN Rail Power Supply: Product Introduction for European Panel Builders

TPS Elektronik designed the TPS100-320W Peak DR+ Series as a DIN rail power supply family for industrial control cabinets across Europe. Specifically, it comes in four power ratings — 100W, 150W, 240W and 320W — and each rating comes in two output voltage groups: 12-15V and 24-28V. Moreover, the series combines a 170% peak power Power Boost function that lasts up to 10 seconds, fan-less convection cooling in a metal housing, up to 93% efficiency at 220VAC input and full load, and built-in OTP protection, OVP protection and overload protection. For engineers specifying a switch mode power supply into automation, LED lighting or telecommunication equipment, this product introduction covers the features, installation requirements, monitoring options and compliance data that matter in a European control cabinet.

Product Highlights

• The TPS100-320W Peak DR+ Series is a DIN rail power supply family available in 100W, 150W, 240W and 320W ratings, with 12-15V and 24-28V output groups
• The Power Boost function delivers 170% of rated power for up to 10 seconds, covering inrush, motor start and capacitive load surges without oversizing the supply
• Convection cooling with a metal housing removes the fan, along with its wear, dust accumulation and audible noise
• Up to 93% efficiency at 220VAC input and full load reduces the heat the unit adds to the control cabinet
• Built-in OTP protection, OVP protection and overload protection guard the supply and the downstream DC output rail
• The Power-Fail dry contact and front-panel LED status indicator support both remote AC monitoring and local status checking
• Vertical mounting on TS35/7.5 or TS35/15 DIN rail, UL, CE and TUV approval, and a 5-year warranty suit European cabinet installations

Power Boost Function: 170% Peak Power for 10 Seconds

One of the standout features of the TPS100-320W Peak DR+ Series is its Power Boost function. The power supply can deliver 170% of its rated output power for up to 10 seconds. After that window, output returns to the rated level. This short-term surge capability targets real-world load events: inrush current at power-up, motor starting, and capacitive load charging. These events briefly demand far more current than the steady-state load, and without Power Boost they would force engineers to select a larger power class than the application actually needs.

For European panel builders, this means a 100W DIN rail power supply can handle a 170W surge for 10 seconds, a 150W model can deliver 255W, a 240W unit can reach 408W, and a 320W power supply can supply 544W during transient conditions. Consequently, the result is a smaller, more cost-effective unit that still covers peak demand without compromising steady-state reliability.

170% Peak Power for 10 Seconds: Selection Notes

• First, base continuous sizing on the derated rated power, not on the 170% peak figure
• Second, apply the 170% peak power for 10 seconds only to events that genuinely last less than 10 seconds
• Third, motors, capacitive input filters and high-inrush devices are the typical loads that benefit
• However, a power class upgrade purely for a short surge may be unnecessary when Power Boost covers the transient
• Finally, the function helps keep cabinet space and cost down without sacrificing steady-state performance

Convection Cooling and Metal Housing: No Fan, No Maintenance

The TPS100-320W Peak DR+ Series uses convection cooling with a metal housing. There is no internal fan. Heat moves from the internal components to the metal case and then to the surrounding air by natural convection. As a result, this fan-less power supply design removes three recurring failure modes at once: fan bearing wear, dust and particulate accumulation on fan blades and internal surfaces, and audible noise in installations where acoustic limits apply.

Because the cooling path depends on natural convection, the metal housing is more than a protective enclosure — it is the heat exchange surface. Therefore, the unit requires vertical mounting on the DIN rail, which aligns with the natural upward convection path inside the cabinet. Furthermore, free space above and below the housing supports the chimney effect that carries heated air away from the unit.

Convection Cooling Power Supply Design Implications

• First, no moving parts in the cooling path means no scheduled fan replacement and no airflow maintenance
• Second, dust and contaminants cannot be pulled through the enclosure by forced air
• Third, vertical mounting on the DIN rail is mandatory and supports the natural convection path
• Finally, clearance above and below the unit helps maintain effective heat dissipation

Up to 93% Efficiency at 220VAC Input and Full Load

Efficiency is a key specification for any switch mode power supply, and the TPS100-320W Peak DR+ Series reaches up to 93% efficiency at 220VAC input and full load. For European installations running on a 50/60Hz supply, this is the relevant operating point. The remaining energy dissipates as heat inside the housing. Consequently, a high efficiency PSU reduces the thermal load it places on the control cabinet.

Lower internal heat generation means less demand on cabinet ventilation, filters or air conditioning. Furthermore, it also helps preserve the derating margin between 50°C and 70°C, because the unit contributes less to its own temperature rise. The metal housing acts as the heat exchange surface, so efficiency and convection cooling work together to keep the installation within its thermal limits.

High Efficiency PSU Effects on Cabinet Thermal Design

• First, lower internal heat generation reduces the temperature rise that drives the unit toward the 50°C derating threshold
• Second, less waste heat means less demand on cabinet ventilation, filters or cooling equipment
• Third, the 93% figure applies at 220VAC input and full load, so partial-load operation may differ
• Finally, efficiency and convection cooling reinforce each other in the metal housing design

Built-In Protection: OTP, OVP and Overload

The TPS100-320W Peak DR+ Series includes three internal protection mechanisms that respond when operating conditions move outside the intended range. Specifically, OTP protection monitors internal temperature and places the unit into a protected state if that temperature exceeds the limit. In addition, OVP protection responds to an abnormally high output voltage. Overload protection responds when the load exceeds the rated value. Together they guard both the power supply and the downstream DC output rail feeding connected equipment.

However, these protections complement correct thermal design; they do not replace it. OTP protection is a last line of defense. If a unit regularly reaches the condition that triggers it, the cabinet thermal design should be revisited. Thus, the presence of OTP protection does not remove the requirement to derate above 50°C ambient.

OTP Protection, OVP Protection and Overload Protection

• First, OTP protection: internal over-temperature condition triggers a protective state
• Second, OVP protection: output over-voltage condition triggers protection
• Third, overload protection: load exceeding the rated value triggers protection
• Finally, these functions guard the DC output power supply rail and downstream loads

Power-Fail Contact and AC Fail Signal for Cabinet Monitoring

The Power-Fail contact provides an AC fail signal for external monitoring. It is a passive dry contact, not an active output. Specifically, the contact state follows this rule: Closed = AC OK and Open = AC Fail. When AC input is normal, the contact closes. When AC input fails, the contact opens.

Because the contact is passive, you can wire it into a PLC input, an alarm circuit or a supervisory system without requiring a supply voltage from the power supply itself. Therefore, in an industrial control PSU installation, this gives the control system advance warning that the AC feed has been lost, before the DC output rail collapses and the controlled process is affected. The front panel LED status indicator provides local visual confirmation alongside the remote signal.

Power-Fail Contact and AC Fail Signal Wiring Notes

• First, Closed = AC OK, meaning AC input is present and normal
• Second, Open = AC Fail, meaning AC input has failed
• Third, passive dry contact that does not source voltage on its own
• Fourth, suitable for connection to PLC inputs and alarm circuits for monitoring
• Finally, the front panel LED status indicator gives local visual indication alongside the remote contact signal

Installation: Vertical DIN Rail Mounting on TS35/7.5 or TS35/15

TPS Elektronik designed the TPS100-320W Peak DR+ Series as a DIN rail mounted PSU for TS35/7.5 or TS35/15 rail. Vertical installation on the DIN rail is mandatory; TPS does not support horizontal placement. This is a thermal requirement as much as a mechanical one, because the convection cooling design depends on the vertical orientation of the metal housing.

The terminal wiring accepts AWG26-14 cable, with a cross-section range of 0.15 to 2.5 mm² and a voltage rating of 300VAC. In addition, the AC input terminal block follows the top-to-bottom order PE, N and L. The PE N L terminal block layout is identical across the 100W, 150W, 240W and 320W models, which simplifies panel wiring and reduces the risk of miswiring when mixing power classes in one cabinet. Output and signal terminals follow the order Power-Fail, DC-, DC-, DC+, DC+, with DC- and DC+ each providing two paralleled terminals. The metal housing includes an integrated DIN rail clip for direct rail mounting, and a LED status indicator on the front panel shows the operating state of the unit.

Vertical DIN Rail Mounting and Terminal Details

• First, mount vertically on TS35/7.5 DIN rail or TS35/15 DIN rail; horizontal mounting is not permitted
• Second, AC input terminals from top to bottom: PE, N, L
• Third, output and signal terminals: Power-Fail, DC-, DC-, DC+, DC+
• Fourth, DC- and DC+ each provide two paralleled terminals for the negative and positive output
• Fifth, wire range: AWG26-14, 0.15-2.5 mm², 300VAC
• Finally, LED status indicator on the front panel for local operating state

Mechanical Dimensions and Cabinet Space Planning

The series splits into two physical body sizes. Specifically, the 100W and 150W models measure 43 mm wide, 76.5 mm deep and 127 mm high. In addition, the 240W and 320W models measure 60 mm wide, 98 mm deep and 127 mm high. All units use a metal housing with an integrated DIN rail clip. Because the 240W and 320W models are wider and deeper, they also require more surrounding free volume for convection. Therefore, planning rail space with those dimensions in mind, and leaving clearance above and below the units, supports the thermal behavior that the fan-less power supply design relies on.

Metal Housing Power Supply Dimensions

• First, TPS100W-150W series: width 43 mm, depth 76.5 mm, height 127 mm
• Second, TPS240W-320W series: width 60 mm, depth 98 mm, height 127 mm
• Third, height is consistent at 127 mm across both body sizes
• Finally, metal housing with integrated DIN rail clip for direct TS35 mounting

Compliance and Certification for European Installations

The TPS100-320W Peak DR+ Series carries UL, CE and TUV approval. The referenced standard in the manual is UL60950-1, and the unit also satisfies UL508 and EN60950-1. On the European directive side, the series complies with the Low Voltage Directive 2014/35/EU and the EMC Directive 2014/30/EU. For a CE certified power supply destined for a European control cabinet, these are the baseline market access requirements. The series also carries a 5-year warranty.

Furthermore, the manual covers end-of-life handling. Do not dispose of the device in household waste. Free electrical recycling collection points are available locally, and users are responsible for clearing any personal data from the device before returning it for recycling. The referenced German regulation page is www.elektrogesetz.de.

CE Certified Power Supply, UL Certified Power Supply, TUV Approved PSU

• First, approvals: UL, CE, TUV
• Second, referenced standard: UL60950-1
• Third, also satisfies: UL508 and EN60950-1
• Fourth, Low Voltage Directive: 2014/35/EU
• Fifth, EMC Directive: 2014/30/EU
• Sixth, warranty: 5 years
• Finally, disposal: not permitted in household waste; use local electrical recycling collection points; user clears personal data before return

Applications: Automation Power Supply, LED Lighting Power Supply, Telecommunication Power Supply

The manual lists three primary applications for the series: automation industry, LED lighting and telecommunication. Each of these places the power supply in a cabinet environment where the 50°C derating rule is directly relevant. Specifically, automation cabinets concentrate heat from drives and controllers. In addition, LED lighting drivers may sit in enclosures with limited airflow. Furthermore, telecommunication cabinets often sit outdoors or in unconditioned locations where ambient temperature swings are wide.

In all three cases, the same selection principles apply: confirm the internal cabinet temperature, apply the derating curve above 50°C, mount vertically on TS35 rail, leave convection clearance, and use the Power Boost function only for transient surges rather than continuous load. Therefore, these principles help ensure reliable operation across all three application areas.

Technical Specifications

In summary, the TPS100-320W Peak DR+ Series brings together 100W, 150W, 240W and 320W DIN rail power supply options, a 170% peak power for 10 seconds Power Boost function, fan-less convection cooling, up to 93% efficiency, and built-in OTP protection, OVP protection and overload protection. For European control cabinets, the decisive step is respecting the 0-50°C full-power window and derating above 50°C, mounting vertically on TS35/7.5 or TS35/15 rail, and leaving convection clearance around the metal housing. With UL, CE and TUV approvals, Low Voltage Directive and EMC Directive compliance, and a 5-year warranty, the series is well suited to automation power supply, LED lighting power supply and telecommunication power supply applications.

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