The Lovato GAX42040A fourth pole add-on accessory upgrades GA016A-GA040A devices to four-pole operation, with simultaneous closing operation as switch poles.
SKU:GAX42040A
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The Lovato GAX42040A fourth pole add-on accessory upgrades GA016A–GA040A devices to four‑pole operation, with simultaneous closing operation as switch poles. Rated Ith 40 A and suitable for AC use, it supports AC21A, AC22A and AC23A duties. With 1000 V rated insulation (Ui) and 8 kV impulse withstand (Uimp), it delivers robust isolation in compact assemblies.
Engineered for reliability, this module offers 100000 mechanical and AC21A electrical cycles and IP20 frontal protection. It accepts 0.75–16 mm² conductors with 1.8 to 2 Nm terminal torque, operates from -25 to +55 °C, and suits altitudes up to 3000 m. Conforms to IEC/EN 60947-3/-1, UL508, UL98 and CSA C22.2 requirements.
Key Benefits
Simultaneous closing with switch poles for reliable four-pole operation.
40 A IEC Ith; robust across AC21A/AC22A/AC23A duties.
High insulation: Ui 1000 V with 8 kV impulse withstand.
Long life: 100000 mechanical and AC21A electrical cycles.
IP20 frontal protection and pollution degree 3 for safer integration.
Wide wiring range: 0.75–16 mm², with 1.8–2 Nm torque.
Reliable operation from -25 to +55 °C, up to 3000 m.
Compatible with Lovato GA016A–GA040A series devices.
What’s Included
Lovato GAX42040A fourth pole add-on module
Product datasheet (PDF)
Basic installation and safety information
Applications
Extending Lovato GA016A–GA040A devices to four-pole configurations
AC isolation and switching in AC21A and AC22A duty categories
Load switching within AC23A limits at 400–690 V
Control panels requiring 1000 V insulation and IP20 frontal protection
Installations needing simultaneous closing with main switch poles
Technical Specifications
HS Code
85365080
Product type designation
GAX42
Number of poles
1
Operating voltage type
AC
Ith (IEC)
40 A
Rated insulation voltage Ui (IEC/EN)
1000 V
Rated impulse withstand voltage Uimp
8 kV
Operating current Ie AC21A 400 V
40 A
Operating current Ie AC21A 500 V
40 A
Operating current Ie AC21A 690 V
40 A
Operating current Ie AC22A 400 V
40 A
Operating current Ie AC22A 500 V
40 A
Operating current Ie AC22A 690 V
40 A
Operating current Ie AC23A 400 V
40 A
Operating current Ie AC23A 500 V
25 A
Operating current Ie AC23A 690 V
25 A
Making capacity AC23A 400 V
400 A
Breaking capacity AC23A 400 V
320 A
Mechanical life
100000 cycles
Electrical life AC21A
100000 cycles
Terminal tightening torque
1.8 to 2 Nm
Weight
45 g
Conductor section (IEC)
0.75 to 16 mm²
Operating temperature
-25 to +55 °C
Storage temperature
-40 to +70 °C
Max altitude
3000 m
IP degree (frontal)
IP20
Pollution degree
3
Frequently Asked Questions
Is the GAX42040A compatible with my device?
It is an accessory for GA016A…GA040A versions. Check your device label to confirm the GA…A series.
What current ratings does this fourth pole support?
Ith is 40 A. AC21A and AC22A are 40 A at 400/500/690 V; AC23A is 40 A at 400 V and 25 A at 500/690 V.
Does the fourth pole close at the same time as the main poles?
Yes. It provides simultaneous closing operation as the switch poles for coordinated switching.
What are the installation requirements?
Use 0.75–16 mm² conductors and tighten terminals to 1.8–2 Nm. Always follow the manufacturer’s datasheet.
Which standards and environmental ratings does it meet?
It conforms to IEC/EN 60947-3/-1, UL508, UL98 and CSA C22.2, with IP20 frontal protection and pollution degree 3.
Safety note: Install and service only by qualified personnel. Isolate all power before work and observe specified ratings, wiring ranges and terminal torque.
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2025 has been a big year for LED Controls, and our blog has expanded accordingly. We've covered a wide range of topics across industrial control and factory automation this year. From core technology explainers and new product releases to panel building best practice...
2025 has been a big year for LED Controls, and our blog has expanded accordingly. We've covered a wide range of topics across industrial control and factory automation this year. From core technology explainers and new product releases to panel building best practice...