KACO Blueplanet 125 TL3 and 137 TL3 Inverters Manual

KACO Blueplanet 125 TL3 and 137 TL3 Inverters

Overview

The KACO Blueplanet 125 TL3 and 137 TL3 are high-performance, transformerless, three-phase string inverters designed for utility-scale solar power plants and multi-megawatt solar parks. These inverters utilize advanced silicon carbide technology for superior efficiencies and overload capacity, making them ideal for extreme environmental conditions.

Key Features

• High Efficiency: Maximum efficiency of 99.2% and European efficiency of 99.0%.
• Silicon Carbide Technology: Ensures high performance and durability.
• Wide Voltage Range: Compatible with high-voltage PV modules up to 1500V.
• Robust Design: IP66/NEMA 4X protection class for harsh environments.
• Comprehensive Connectivity: Ethernet, RS485, USB interfaces, and optional Wi-Fi.
• Advanced Grid Management: Extensive grid management functions for optimal performance.
• Lean Commissioning: Remote services for commissioning and updates.

Technical Specifications

DC Input Data

Specification	125 TL3	137 TL3
Max. recommended PV generator power	187,500 W	205,500 W
MPP range	875 – 1,300 V	875 – 1,300 V
Operating range	875 – 1,450 V	875 – 1,450 V
Rated DC voltage / start voltage	900 V / 1,000 V	900 V / 1,000 V
Max. no-load voltage	1,500 V	1,500 V
Max. input current	160 A	160 A
Max. short circuit current Isc max	300 A	300 A
Number of MPP trackers	1	1
Connection per tracker	1 - 2	1 - 2

AC Output Data

Specification	125 TL3	137 TL3
Rated output	125,000 VA	137,000 VA
Max. power	137,500 VA	137,500 VA
Line voltage	600 V (3P+PE)	600 V (3P+PE)
Voltage range (Ph-Ph)	480 – 690 V	480 – 690 V
Rated frequency (range)	50 Hz / 60 Hz (45 – 65 Hz)	50 Hz / 60 Hz (45 – 65 Hz)
Rated current	3 x 120.3 A	3 x 132.3 A
Max. current	3 x 132.3 A	3 x 132.3 A
Reactive power / cos phi	0 – 100% Snom / 0.30 ind. – 0.30 cap.	0 – 100% Snom / 0.30 ind. – 0.30 cap.
Max. total harmonic distortion (THD)	≤ 3%	≤ 3%
Number of grid phases	3	3

General Data

Specification	125 TL3	137 TL3
Max. efficiency	99.2%	99.2%
Europ. efficiency	99.0%	99.0%
CEC efficiency	98.9%	98.9%
Standby consumption	< 10 W	< 10 W
Circuitry topology	Transformerless	Transformerless

Mechanical Data

Specification	125 TL3	137 TL3
Display	LEDs	LEDs
Control units	Webserver, supports mobile devices	Webserver, supports mobile devices
Interfaces	Ethernet (Modbus TCP, Sunspec), RS485 (KACO-protocol), USB, optional: 4-DI, Wi-Fi	Ethernet (Modbus TCP, Sunspec), RS485 (KACO-protocol), USB, optional: 4-DI, Wi-Fi
Fault signalling relay	Potential-free NOC max. 30 V / 1 A	Potential-free NOC max. 30 V / 1 A
DC connection	Cable lug, max. 240 mm² (0.372 in²) Cu or Al	Cable lug, max. 240 mm² (0.372 in²) Cu or Al
AC connection	Cable lug, max. 240 mm² (0.372 in²) Cu or Al	Cable lug, max. 240 mm² (0.372 in²) Cu or Al
Ambient temperature	-25 °C – +60 °C 1)	-25 °C – +60 °C 1)
Humidity	0 – 100%	0 – 100%
Max. installation elevation (above MSL)	3,000 m	3,000 m
Min. distance from coast	500 m	500 m
Cooling	Temperature controlled fan	Temperature controlled fan
Protection class	IP66 / NEMA 4X	IP66 / NEMA 4X
Noise emission	59.2 dB(A)	59.2 dB(A)
Dimensions (H x W x D)	719 x 699 x 460 mm	719 x 699 x 460 mm
Weight	78.2 kg	78.2 kg

Certifications

• Safety: IEC 62109-1/-2, EN 61000-6-1/-2/-4, EN 61000-3-11/-12, EN 55011 group 1, class A, EN 62920 Emission class A/Immunity class A, UL62109-1, UL1741, CSA-C22.2 No.107.1, CSA-C22.2 No.62109-1, CSA-C22.2 No.62109-2

Versions

Feature	S	XL
Number of DC inputs	1 - 2	1 - 2
DC switch	-	✓
DC SPD	Type 1 + 2	Type 1 + 2
AC SPD	⬤	⬤
RS485 interface SPD	⬤	⬤
Ethernet interface SPD	⬤	⬤
PID Set	⬤	⬤

• Standard: ✓
• Upgradeable: ⬤

Notes:

1. Power derating at high ambient temperatures

The KACO Blueplanet 125 TL3 and 137 TL3 inverters are designed to deliver high efficiency and reliable performance for large-scale solar installations, with advanced features for current and future requirements. Their robust design and extensive connectivity options make them suitable for diverse and challenging environments.