GLC0100T4C1UL Lovato 4P CHANGEOVER SWITCH 100A AC21 UL1008 Version
Lovato GLC0100T4C1UL is a four-pole UL1008 changeover switch with a 100 A UL general-purpose current rating, designed for reliable source switching in industrial and commercial power distribution systems.
SKU:GLC0100T4C1UL
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Why Choose the Lovato GLC0100T4C1UL 4-Pole Changeover Switch?
The Lovato GLC0100T4C1UL is a heavy-duty four-pole changeover switch designed for reliable switching between electrical supplies in industrial and commercial power distribution systems. Part of the Lovato GLC changeover switch range, this version is specifically rated to UL1008 with a general-purpose current rating of 100 A.
Designed for demanding switching applications, the GLC0100T4C1UL combines four-pole switching with robust electrical and mechanical performance. Its IEC conventional free-air thermal current is 160 A, while the switch supports AC-31B, AC-32B and AC-33B utilisation categories at voltages up to 690 V AC.
With a rated insulation voltage of 1000 V, a 12 kV impulse withstand rating and a UL short-circuit rating of 200 kA rms when used with the specified Class J fuse protection, this changeover switch is engineered for dependable installation in power distribution, transfer and source-selection systems.
Key Advantages
Four-pole changeover switching for multi-pole power distribution systems.
UL1008 compliant version with a 100 A general-purpose current rating.
IEC conventional free-air thermal current of 160 A.
Supports AC-31B, AC-32B and AC-33B switching duties.
High 1000 V rated insulation voltage for robust electrical isolation.
Strong short-circuit performance for demanding industrial installations.
Key Features
Lovato GLC UL changeover switch series.
4-pole configuration.
100 A UL general-purpose current rating.
160 A IEC conventional free-air thermal current at temperatures up to 40 °C.
1000 V rated insulation voltage Ui.
12 kV rated impulse withstand voltage Uimp.
6 kA short-time withstand current for 1 s.
90 kW AC-23A operational power at 400 V.
Mechanical endurance of 20,000 operating cycles.
Screw-on-plate installation with M8 × 20 terminals.
Reliable Changeover Switching for Power Distribution
Changeover switches provide controlled selection between two electrical sources or circuits, making them important components in power distribution and transfer applications. The four-pole architecture of the Lovato GLC0100T4C1UL enables simultaneous switching across four conductors within a single coordinated device.
The GLC series is designed for industrial electrical installations requiring robust isolation and switching performance. Its high insulation rating, short-circuit capability and mechanical endurance make the GLC0100T4C1UL suitable for integration into switchboards, distribution panels and source-transfer assemblies.
Typical Applications
Power source changeover and transfer systems.
Industrial electrical switchboards.
Main and standby supply selection.
Generator and mains changeover systems.
Commercial and industrial power distribution panels.
Machinery and automation power distribution systems.
Technical Specifications
HS Code
85365080
Manufacturer
Lovato Electric
Series
GLC UL
Model
GLC0100T4C1UL
Product type
Changeover switch / switch disconnector
Number of poles
4
Operating voltage type
AC
UL standard
UL1008
UL general-purpose current rating
100 A
IEC conventional free-air thermal current Ith
160 A
Rated insulation voltage Ui
1000 V
Rated impulse withstand voltage Uimp
12 kV
IEC operating current AC-31B
160 A at 400 / 500 / 690 V AC
IEC operating current AC-32B
160 A at 400 / 500 / 690 V AC
IEC operating current AC-33B
160 A at 400 / 500 / 690 V AC
Rated operational power AC-23A
90 kW at 400 V; 134 kW at 690 V
Short-time withstand current Icw
6 kA rms for 1 s; 12 kA rms for 0.3 s
IEC conditional short-circuit current
100 kA rms
UL short-circuit rating
200 kA rms
Mechanical life
20,000 cycles
Installation
Screw mounting on plate
Terminal type
M8 × 20
Terminal tightening torque
15–22 Nm
IEC conductor section
70–185 mm²
Operating temperature
−25 to +55 °C
Storage temperature
−40 to +70 °C
Maximum altitude
3000 m
Weight
approx. 4.59 kg
Frequently Asked Questions
What is the Lovato GLC0100T4C1UL used for?
The GLC0100T4C1UL is a four-pole changeover switch used to select or transfer between electrical supplies or circuits in industrial and commercial power distribution systems.
What is the current rating of the GLC0100T4C1UL?
The switch has a 100 A UL general-purpose current rating and an IEC conventional free-air thermal current Ith of 160 A.
Is the Lovato GLC0100T4C1UL UL1008 rated?
Yes. The GLC0100T4C1UL is specifically designed as a UL1008 changeover switch.
How many poles does this changeover switch have?
The GLC0100T4C1UL has a four-pole configuration, allowing four conductors to be switched together.
How is the GLC0100T4C1UL installed?
The switch is designed for screw mounting on a plate and uses M8 × 20 power terminals for conductor connections.
Trusted by Industrial Electrical Professionals
Lovato Electric GLC changeover switches provide robust source switching and isolation for industrial power distribution, switchboards and transfer applications where dependable electrical and mechanical performance is essential.
HS Code
85365080
Manufacturer
Lovato Electric
Series
GLC UL
Model
GLC0100T4C1UL
Product type
Changeover switch / switch disconnector
Number of poles
4
Operating voltage type
AC
UL standard
UL1008
UL general-purpose current rating
100 A
IEC conventional free-air thermal current Ith
160 A
Rated insulation voltage Ui
1000 V
Rated impulse withstand voltage Uimp
12 kV
IEC operating current AC-31B
160 A at 400 / 500 / 690 V AC
IEC operating current AC-32B
160 A at 400 / 500 / 690 V AC
IEC operating current AC-33B
160 A at 400 / 500 / 690 V AC
Rated operational power AC-23A
90 kW at 400 V; 134 kW at 690 V
Short-time withstand current Icw
6 kA rms for 1 s; 12 kA rms for 0.3 s
IEC conditional short-circuit current
100 kA rms
UL short-circuit rating
200 kA rms
Mechanical life
20,000 cycles
Installation
Screw mounting on plate
Terminal type
M8 × 20
Terminal tightening torque
15–22 Nm
IEC conductor section
70–185 mm²
Operating temperature
−25 to +55 °C
Storage temperature
−40 to +70 °C
Maximum altitude
3000 m
Weight
approx. 4.59 kg
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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...