Compliance and Testing Guide for eTM-1502, eTM-1502F and eTM-1502P DC Power Supplies

For system integrators, panel builders, procurement teams and electrical engineers, a 150 V / 2 A bench DC power supply is not only a line item. It becomes part of a test station, production fixture, service bench or validation process that may need safety documentation, EMC evidence, repeatable setup records and clear supplier support. This guide explains how to evaluate eTM-1502, eTM-1502F and eTM-1502P when IEC 61010-1, IEC 61326-1 and FCC Part 15 Subpart B are part of the project conversation.

Because compliance status depends on the final product configuration, destination market and available test reports, this article is written as a BoFu supplier-selection and RFQ planning guide rather than a blanket certification claim. Use it to shorten technical clarification cycles, define the evidence you want from TPS, and decide which eTM model best fits your application before sending a request for quote.

Why compliance matters for 150 V / 2 A bench DC supplies

A compact 300 W DC supply is often purchased for a practical reason: the engineering team needs stable adjustable power for PCB test, electronics repair, sensor development, battery-powered module evaluation, end-of-line verification or service diagnostics. The compliance risk appears later, when the same bench setup must be replicated across plants, shipped to a customer site, included in a control panel, or documented for an audit. At that point, procurement no longer asks only for price and lead time. They ask whether the supplier can support documentation, configuration control, labeling, interface options, and technical answers when a lab or customer reviewer raises questions.

The eTM-1502 family is relevant because the three target models share the same practical output class: 0-150 V, 0-2 A and 300 W. That range is useful for higher-voltage electronic loads that do not require high current: LED drivers, small power modules, relay boards, sensor assemblies, control electronics, interface boards, prototype chargers and production test fixtures. The product catalog also indicates a compact housing of 280(D) x 130(W) x 165(H) mm, approximately 1.95 kg net weight and 2.8 kg gross weight, which matters when the supply must fit on a service cart, bench shelf or fixture rack.

For TPS customers, the commercial goal is straightforward: choose a power supply that fits the electrical task, then receive enough project support to proceed with confidence. TPS can provide these products or discuss equivalent solutions, interface options, integration needs and documentation requirements for global B2B projects. When a project is close to purchase, the RFQ should not be a vague request for a 150 V supply. It should specify the test environment, market destination, compliance target, communication needs, expected order quantity, sample timing and required documents.

Standards map: IEC 61010-1, IEC 61326-1 and FCC Part 15

IEC 61010-1 is commonly used as the safety framework for electrical equipment for measurement, control and laboratory use. In an RFQ, it helps frame questions about operator access, insulation, protective earth continuity, markings, fusing, abnormal operation and instructions. For a bench DC power supply, the buyer should ask whether the current product configuration has available safety documentation, whether the selected input voltage option matches the destination market, and whether installation or use instructions are available for the way the device will be deployed.

IEC 61326-1 is commonly used as an EMC framework for measurement, control and laboratory equipment. In practice, the final result depends on both the power supply and the surrounding setup: AC mains quality, grounding, DC cable length, DUT behavior, enclosure, load type and nearby equipment. A system integrator should treat the supply as one part of the EMC chain and document the final operating mode used for conducted emissions, radiated emissions and immunity checks. If the eTM supply is installed inside a fixture or test bench, the fixture layout can change the outcome.

For US-market planning, FCC Part 15 Subpart B is important because it addresses unintentional radiators and includes conducted and radiated emission requirements. The official eCFR page for 47 CFR Part 15 Subpart B lists equipment authorization, conducted limits and radiated emission limits sections, including 15.101, 15.107 and 15.109. For procurement, Class B should be discussed early when the product might be used in mixed commercial, light-industrial or customer-facing environments. Class B priority usually means less margin for poor cable routing, weak grounding or noisy DUT behavior.

Use external standards references carefully. The official pages for IEC 61010-1, IEC 61326-1 and 47 CFR Part 15 Subpart B should guide the compliance conversation, while the actual RFQ should ask TPS for current documentation that applies to the exact model, configuration and shipment destination.

Model selection: eTM-1502 vs eTM-1502F vs eTM-1502P

All three target models are useful when the load profile is within 150 V and 2 A, but they serve different purchasing situations. If the test station is manual and the operator mainly needs voltage/current preset, output ON/OFF control, power display and stable bench operation, eTM-1502 is the straightforward choice. It fits repair benches, R&D validation corners, incoming inspection and lower-complexity production checks where repeatability comes from work instructions rather than automated sequences.

If the buyer wants a 4-digit front panel for more precise visual setup and clearer operator confirmation, eTM-1502F becomes a better fit. It keeps the practical interface of a regular supply while supporting a more controlled station record. That is useful when the same voltage setpoint must be repeated across shifts, when technicians must photograph or record the displayed setting, or when a work instruction needs less ambiguity.

If the test plan requires sequenced voltage steps, automated stress profiles or remote setup commands, eTM-1502P is the model to discuss first. The P series includes hardware List programmable sequence output, six quick parameter memories, and five protection functions covering over-voltage, over-current, over-power, over-temperature and short circuit. It also supports rear communication for setting and programming, making it more suitable for validation benches, burn-in scripts, semi-automated production fixtures and repeatable engineering experiments.

Selection by application

For PCB functional testing, the best model depends on whether the board is powered at one steady point or stepped through several voltage conditions. A single-voltage continuity, startup or load check can use eTM-1502 or eTM-1502F. A firmware-controlled module that needs voltage ramping, brownout simulation or repeated sequences is usually a stronger match for eTM-1502P. For mobile electronics service benches, the stable front-panel workflow of the regular and F-series models may be more efficient. For engineering validation, the P-series model reduces manual variability by storing repeatable steps.

Procurement should not choose by catalog price alone. The lower initial cost of a manual supply can become expensive if technicians must spend time reproducing complex steps or if audit records are inconsistent. Conversely, a programmable model may be unnecessary for simple service benches. TPS can support project-level selection so the quotation reflects the actual use case, not a generic specification copied from a shopping list.

Integration and installation considerations

Panel builders and system integrators should review mechanical fit first. The catalog dimensions of 280(D) x 130(W) x 165(H) mm make the units compact, but a real installation also needs space for airflow, rear cable bend radius, AC input access, fuse replacement, communication port access and operator visibility. Do not bury the rear fan area inside a closed cavity without thermal review. If the supply is placed on a rolling cart or inside a fixture, define vibration, handling and service access expectations in the RFQ.

Electrical integration should cover both normal operation and abnormal conditions. The 150 V output class deserves clear work instructions, output terminal labeling and insulation practices. The output ON/OFF key is useful for reducing wiring mistakes during setup, but it is not a substitute for lockout procedures where higher-level equipment safety rules apply. C.V. and C.C. indicators should be included in operator training so technicians understand whether the supply is regulating voltage or limiting current during a test.

The product catalog shows optional rear communication choices such as RS485, RS232 or USB. For the regular and F-series models, communication is described for control/read functions rather than full setting and programming. For the P-series, rear communication supports setting and programming. This difference should be stated clearly in the RFQ, especially if the power supply will connect to a PLC, PC-based test platform, data logger or manufacturing execution system.

Grounding and cable layout are also compliance issues. Long unshielded DC leads, floating metal fixtures, loose protective-earth paths and inconsistent cable routing can all affect noise behavior and safety review. For deeper EMC layout planning, TPS content on control panel grounding and bonding failure modes and conducted emissions wiring mistakes can help the engineering team prepare a cleaner test plan before sending samples to a lab.

Pre-compliance test plan before production release

A good pre-compliance plan starts before the formal lab slot is booked. For IEC 61010-1 style safety planning, inspect markings, fuse rating, input voltage selection, protective earth continuity, output terminal condition, enclosure condition, ventilation, and user instructions. Record the model, serial number, input configuration, output setpoints and load profile used during testing. If the final station includes a DUT enclosure, cable harness, external load or control software, test that complete configuration as early as possible.

For IEC 61326-1 style EMC planning, define the normal operating mode that represents real use. For example, a programmable eTM-1502P should be tested in the sequence mode that the customer will run, not only at a quiet idle point. A manual eTM-1502F should be checked with the actual DC leads and DUT load. If the power supply is only one part of a larger bench, document cable lengths, cable routing, grounding points, shielding, AC mains path and nearby equipment. This makes results easier to reproduce and helps TPS or the lab discuss corrective actions if a limit is approached.

For FCC Part 15 Subpart B Class B planning, the team should pay particular attention to conducted emissions on AC mains and radiated emissions from the final equipment configuration. Class B priority is valuable when the product may be used near offices, labs, customer sites or mixed-use facilities. Before formal testing, run a pre-scan with consistent load conditions and collect screenshots or test notes. If a failure occurs, the first fixes are often practical: improve bonding, shorten noisy leads, separate AC and DC cables, add approved filtering where appropriate, or change the physical position of the DUT and load.

TPS has related content on when to use an EMC pre-compliance lab, EMC testing for power supplies and devices, and electrical safety checks before certification. These resources are useful when engineering and procurement want to move from general compliance language to a repeatable supplier evaluation process.

Documentation records to request

For a serious RFQ, request the current datasheet or product specification, available test evidence, user instructions, interface information, mechanical dimensions, packaging information, input voltage option, warranty terms and any applicable declaration or report references. Do not assume one document covers every market. Ask TPS to confirm what is available for the exact model and configuration you plan to buy. For projects that will be audited, ask for document revision control and whether customized labels, manuals or inspection records can be supported.

RFQ checklist for engineering and procurement

The strongest RFQs combine technical clarity with commercial context. Instead of writing, "Please quote a 150 V power supply," define the outcome: "We need a 150 V / 2 A DC power supply for an electronics test fixture used in the US market, with Class B EMC planning preferred, optional USB or RS485 communication, documentation for safety review, and support for sample evaluation." This tells TPS what to verify and helps avoid wrong-model quotations.

At the bottom of the funnel, the right supplier is not simply the one that can ship a unit. The right supplier can help you select the proper model, explain the feature differences, support technical documentation, and participate in compliance-driven discussions before the project reaches a formal lab or customer audit. TPS can support global B2B customers with product selection, equivalent solution review, customization discussion and engineering consultation for DC power supply projects.

FAQ

Are eTM-1502, eTM-1502F and eTM-1502P certified to IEC 61010-1 or FCC Class B?

Certification status can depend on model configuration, production version, input option and destination market. Use the RFQ to request current certificates, test reports or declarations that apply to the exact model you plan to buy. This guide should be used for compliance planning and supplier evaluation, not as a substitute for formal evidence.

What is the main difference between eTM-1502, eTM-1502F and eTM-1502P?

All three models target the 0-150 V, 0-2 A, 300 W output class. eTM-1502 is a regular 3-digit model for straightforward manual use. eTM-1502F adds a 4-digit front-panel experience for clearer setup. eTM-1502P adds programmable List output, six memory groups, enhanced protections and communication that supports setting and programming.

Why prioritize FCC Part 15 Subpart B Class B?

Class B planning is useful when equipment may be used outside a purely industrial environment or when the customer wants more conservative emissions margin. It can influence cable routing, grounding, filtering, enclosure decisions and final test configuration. Ask TPS and the lab how to document the final setup before formal testing.

Can a panel builder install these supplies inside a fixture or cabinet?

Yes, but the installation should preserve airflow, service access, grounding, cable spacing, operator visibility and documentation. The final fixture or cabinet may have its own compliance responsibilities, so include the enclosure layout and duty cycle in the RFQ.

When should we choose the programmable eTM-1502P?

Choose eTM-1502P when your test plan needs automated voltage steps, repeatable sequences, stored presets, remote setup commands or protection settings that reduce operator variation. For simple constant-voltage service tasks, eTM-1502 or eTM-1502F may be more cost-effective.