PV tester · 1500 V DC · BTEC cloud

BENNING PV 125 PV tester up to 1500 V

The BENNING PV 125 is a compact photovoltaic tester for grid-connected PV systems up to 1500 V DC. It is designed for commissioning and periodic tests according to EN 62446-1 and EN 62446-2 with category 1 test procedures.

The BENNING PV 125 is suitable for fast, mobile PV tests up to 1500 V DC and can transfer measured values into a digital documentation process via internal memory, Bluetooth, LoRa connection to SUN 3 and the BENNING Test Equipment Cloud. For O&M teams, however, it should be considered that assessment and plausibility checks are not performed fully and directly on the tester itself, but are supported substantially through the BTEC app and the following documentation step. This makes the PV 125 especially useful when simple test routines are the priority and the additional documentation step is deliberately planned into the workflow.

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for tests on grid-connected PV systems up to 1500 V DC
AUTO test sequences and manual measurements
BTEC-compatible for documentation and test report creation

Description

What is the BENNING PV 125 suitable for?

The BENNING PV 125 is a battery-powered photovoltaic tester for qualified electricians and technical O&M teams that need to test and document PV strings and grid-connected PV systems.

The device supports key field tests: protective conductor resistance, automatic voltage polarity display, open-circuit voltage, short-circuit current, insulation resistance as well as operating current and operating power measurements in combination with the optional BENNING CM 3-PV.

For productive use in a solar park, the measurement range alone is not decisive. What matters is how measurement sequence, accessories, memory structure, BTEC documentation and team routines fit together. This is exactly where sunparq can support assessment, training, rollout and Operational Readiness.

Measurement functions

What can be measured with the BENNING PV 125

The following overview summarises the central measurement functions from the data sheet and operating manual and classifies them for practical O&M use.

Protective conductor resistance R_PE	Protective conductor resistance measurement with 200 mA DC test current
PV open-circuit voltage U_OC	Open-circuit voltage at PV module or PV string from 10 V to 1500 V DC
Short-circuit current I_SC	Short-circuit current at PV module or PV string from 0.5 A to 25 A DC
Insulation resistance R_ISO	0.05 MΩ to 999 MΩ with test voltages 250 / 500 / 1000 / 1500 V
Auto measurement 1	Polarity, U_OC, I_SC and R_ISO
Auto measurement 2	DC operating power measurement in combination with BENNING CM 3-PV
Auto measurement 3	R_PE and U_PE, two-pole
Operating current / AC current	0.1 A to 400 A via BENNING CM 3-PV
DC operating power	0.50 kW to 600 kW via BENNING CM 3-PV
Irradiance & temperature	100 W/m² to 1500 W/m² and -30 °C to +125 °C via BENNING SUN 3
Two-pole voltage	10 V to 440 V AC/DC

PV 125 set

PV tester, irradiance measurement and current clamp in the set

The PV 125 can be used as a compact main device. SUN 3 and CM 3-PV can be added as optional accessories for full integration of environmental parameters and operating power measurements.

BENNING PV 125

Main device for AUTO test sequences, manual measurements, R_PE, U_OC, I_SC, R_ISO, memory management and documentation via BTEC.

BENNING SUN 3

Irradiance and temperature measuring instrument with LoRa radio technology, digital compass, inclination angle meter and data logger for 5000 data records.

BENNING CM 3-PV

TRUE-RMS digital clamp multimeter for PV systems with 1500 V DC system voltage, 400 A AC/DC and wireless connection to the PV 125.

Technical data

Key technical data at a glance

The table reduces the manufacturer information to the most important key data for technical decision-makers in O&M teams.

Model	BENNING PV 125
Item number	10241491
Device category	Photovoltaic tester for grid-connected PV systems up to 1500 V
Display	3.5" colour display with navigation keys and coloured function keys
Protective conductor resistance R_PE	0.05 Ω to 199 Ω
Open-circuit voltage U_OC	10 V to 1500 V DC
Short-circuit current I_SC	0.5 A to 25 A DC
Insulation resistance R_ISO	0.05 MΩ to 999 MΩ; test voltages 250 / 500 / 1000 / 1500 V
DC operating current / AC current	0.1 A to 400 A via BENNING CM 3-PV
DC operating power	0.50 kW to 600 kW via BENNING CM 3-PV
Irradiance	100 W/m² to 1500 W/m² via BENNING SUN 3
PV module / ambient temperature	-30 °C to +125 °C via BENNING SUN 3
Two-pole voltage	10 V to 440 V AC/DC
Memory / interfaces	1000 PV strings; Bluetooth; radio / LoRa
Measurement category	CAT IV 1000 V
Power supply	Li-ion battery pack 11.55 V / 2930 mAh with charging cradle
Dimensions / weight	approx. 265 × 115 × 78 mm; approx. 1 kg

Data & communication

From measured value to auditable documentation

The PV 125 is designed for simple field operation. For productive use, it should be defined in advance how measurement data and reports are managed within the company.

BTEC documentation

The BENNING Test Equipment Cloud supports documentation and protocol creation. For teams, it is important to define object structure, responsibilities and reporting logic clearly before rollout.

Bluetooth

Bluetooth is used for data exchange and pairing with mobile devices. In practice, the endpoint used for data transfer and documentation must be defined.

LoRa to SUN 3

SUN 3 transmits irradiance and temperature values to the PV 125 system via long-range LoRa and thereby supports the measurement workflow in the field.

Radio link to CM 3-PV

The wireless interface allows the BENNING CM 3-PV to be integrated into the measurement sequence for operating current and power data.

Standards & safety

Normative classification of the BENNING PV 125

The following standards and requirements are taken from the operating manual and data sheet.

PV testing

Commissioning and periodic testing of grid-connected PV systems according to EN 62446-1 and EN 62446-2 with category 1 test procedures.

Electrical safety

The documentation references, among others, EN 61010-1, EN 61010-2-034 as well as EN 61557-1, -2, -4 and -10.

Radio & EMC

The device is designed according to the listed EU directives and standards, including 2014/30/EU, 2014/35/EU, 2014/53/EU, IEC / EN 61326-1, EN 300 220-2 and EN 301 489-3.

Scope of delivery & accessories

What belongs to the PV 125 and what extends the workflow

For a reliable team implementation, the main device alone is not enough: test leads, battery, accessories and the practical data handover into documentation should also be considered.

PV 125 scope of delivery

PV tester, 4 mm test lead set, MC4-compatible PV test lead set, charging cradle, Li-ion battery pack, transport and storage bag, operating manual and test protocol.

Optional measuring accessories

BENNING CM 3-PV, BENNING SUN 3, 40 m BENNING TA 5 test lead, PV module holder, suction-cup temperature sensor and Y-adapter test lead set for power measurements.

Rollout relevance

Accessories often determine whether the field process really works: range, measurement points, module temperature, power measurement and safe cable routing should be clarified before use.

Downloads

Documents for the BENNING PV 125

PDF Operating manual Operation, safety, measurement ranges, measurement sequences and maintenance PDF Datasheet Features, technical data, accessories and BTEC information

Classification

When the BENNING PV 125 can fit well - and when it should be checked first

The decision for a PV tester should always be considered in connection with measurement task, team structure, accessories, data management and reporting.

Can fit well if …

your team needs to perform category 1 tests on grid-connected PV systems up to 1500 V.
a compact tester with AUTO test sequences is required.
BTEC documentation and a protocol workflow are important.
SUN 3 and CM 3-PV can be meaningfully integrated into the field process as accessories.

Check first if …

I-V curve measurement or further category 2 analysis is also required.
several technicians with different routines need to measure and document consistently.
there is no clear object, inverter, string or data structure yet.
reporting requirements from operator, asset manager or customer vary strongly.

Comparison for technical O&M decision-makers

Compare PV testers up to 1500 V in a structured way

Compare measurement range, measurement functions, software, data handling and reporting capability of different PV measurement solutions for practical use in solar parks.

View comparison

Next steps

From device to productive measurement and documentation process

Using the BENNING PV 125 is only one part of the solution. What matters is that your team masters measurement, accessories, BTEC data structure and reporting as a repeatable process.

Assessment

For teams that want to clarify before purchase or implementation whether the PV 125, accessories, BTEC and reporting requirements fit their own O&M process.

Rollout

For companies that want to introduce measuring device, accessories, cloud documentation, team training and reporting as one shared work process.

Operational Readiness

For teams that need ongoing support, onboarding, report reviews and process refinement after implementation.

FAQ

Frequently asked questions about the BENNING PV 125

The following questions help classify when the BENNING PV 125 can be useful in solar park O&M and which points should be considered for measurement practice, BTEC documentation, accessories and reporting.

Is the BENNING PV 125 suitable for tests up to 1500 V DC?

Yes. The BENNING PV 125 is designed for tests on grid-connected PV systems up to 1500 V DC and is therefore suitable for basic test tasks on modern PV installations.

The specific use should always be checked against plant structure, measurement task, safety conditions and test requirements.

For which O&M situations is the PV 125 especially suitable?

The PV 125 is especially interesting when fast, mobile category 1 tests are the priority and measured values should subsequently be documented digitally.

For O&M teams it is important to plan the additional documentation step deliberately. Plausibility checking and further processing of measurements are not performed fully and directly on the tester, but substantially through the BTEC app and the following documentation process.

What role does BTEC play?

BTEC stands for BENNING Test Equipment Cloud and supports data management, documentation and protocol creation. Measurement data can therefore be transferred into a digital test and reporting process.

In practice, object structure, measurement points, test tasks, responsibilities and reporting requirements should be defined in BTEC beforehand. This step is particularly important in an O&M context so that documentation remains traceable and efficient to use later.

Can the measurement result be assessed directly on the device?

The PV 125 enables fast measurements and stores measured values for further processing. However, complete assessment, structuring and documentation of the measurements are not performed exclusively on the device, but especially via the BTEC app and the downstream documentation workflow.

For O&M teams this means: the PV 125 can work well when the digital post-processing step is clearly organised. Without a clean object structure, data storage and reporting logic, the documentation effort in operation can increase.

Which accessories are relevant for the PV 125?

BENNING SUN 3 for irradiance, module and ambient temperature and BENNING CM 3-PV for operating current and operating power are especially relevant.

Suitable test leads, Y-adapters, temperature sensors and clear preparation of measurement points can also be important for the field process. What matters is that accessories, measurement task and documentation logic fit together.

Can the PV 125 measure I-V curves?

The PV 125 is primarily classified as a category 1 test instrument. If I-V curve measurement, STC evaluation or further category 2 analyses are required, another tester or an additional workflow should be checked.

For O&M teams it is therefore important before device selection to clarify whether simple tests are sufficient or whether curve measurement and deeper performance assessment are regularly required.

How does sunparq support implementation?

sunparq can support the use of the BENNING PV 125 through assessment, training, rollout, Operational Readiness or Critical Support. This is not only about operating the device, but about the entire measurement and documentation process.

This includes classification of measurement tasks, accessory selection, preparation of the field workflow, BTEC data structure, reporting logic and the question of whether the PV 125 fits the actual O&M requirement.

Next step

In 15 minutes, we clarify whether and how we can help

We first review your target setup, team structure, PV testers, reporting and support needs - then we decide together whether Assessment, Rollout or Operational Readiness is the right fit.