Knowledge Base › Current Transformers (CT)
Victron Energy Current Transformer 100A:50mA for MultiPlus-II (wire-end)
Official manufacturer global verified Sept. 2, 2026
Identity
| category | current_transformers |
| manufacturer | Victron Energy |
| model | Current Transformer 100A:50mA for MultiPlus-II (wire-end) |
| product_family | Current Transformer for MultiPlus-II |
| product_status | active |
| region | global |
| sku | CTR120000500 (1 m), CTR120000550 (5 m) |
Electrical
| accuracy_class | UNKNOWN |
| burden | UNKNOWN |
| frequency | UNKNOWN |
| measures | Single-phase monitoring only and measures current, not voltage |
| output_voltage_note | Datasheet also states a "50 mV" voltage rating alongside the 100 A:50 mA / 400 A:50 mA ratios |
| primary_rating | 100 A |
| ratio | 100 A:50 mA |
| secondary_rating | 50 mA |
Physical / mechanical
| cable_length | 1 m and 5 m variants confirmed in the 2026 Q1 pricelist; the product page additionally claims a 20 m wire-end variant |
| dimensions_mm | UNKNOWN |
| termination | Wire end - for newer MultiPlus-II units and MultiPlus 20kW |
| weight | UNKNOWN |
| window_size | UNKNOWN |
Installation
| cable_restriction | Do not shorten the cable; it is calibrated to the current transformer |
| orientation | The arrow on the Current Transformer must be pointing in the direction of the MultiPlus |
| polarity | Current Transformer is polarity sensitive - red wire to EXT and white wire to COM terminals |
| topologies | Grid parallel and external transfer switch topologies |
Environment
| operating_temperature | UNKNOWN |
| relative_humidity | UNKNOWN |
Interfaces & connectors
| bluetooth | No |
| ethernet | No |
| modbus_rtu | No |
| modbus_tcp | No |
| rs485 | No |
| ve_direct | No |
Protection
| ip_rating | UNKNOWN |
Certifications
| standards | ['UNKNOWN'] |
Warranty & service
| summary | 5-year standard warranty |
Documents
pricelist
Pricelist Victron 2026 Q1 USD C
product-page
Current Transformer for MultiPlus-II product page
Recorded conflicts
identity.sku / available cable lengths Review required
Wire-end variants at 1 m and 5 m only (CTR120000500, CTR120000550) — https://latam.victronenergy.com/wp-content/uploads/2026/01/Pricelist-Victron-2026-Q1-USD-C.pdf
"CTR12xxxx series (wire-end connector) - available in 1, 5, and 20-meter cable lengths" — https://www.victronenergy.com/meters-and-sensors/current-transformer-for-multiplus-ii
Additional documented parameters
Recorded verbatim from the source; no schema field exists for these yet.
| Accuracy note | Less accurate than a dedicated energy meter, especially at low currents |
| Compatible topologies | grid parallel and external transfer switch topologies |
| Connector type (older units) | Headphone jack |
| Voltage rating | 50 mV |