Lovato GMX503 is a six-piece terminal clamp kit for the GMFJ400C03 fused switch disconnector, accepting two 35-150 mm² or two 6 AWG-300 kcmil rigid or flexible conductors per terminal connection.
SKU:GMX503
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Why Choose the Lovato GMX503 Terminal Lug Kit for GMFJ400C03?
The Lovato GMX503 is a dedicated six-piece terminal clamp and lug kit designed for the Lovato GMFJ400C03 fused switch disconnector. It provides secure termination for rigid and flexible power conductors, making it a manufacturer-matched connection accessory for high-current industrial switchgear installations.
Each GMX503 terminal connection is designed to accommodate two conductors from 35–150 mm², corresponding to a UL conductor range of 2 × 6 AWG to 300 kcmil. This dual-conductor capability makes the kit particularly useful where large parallel conductors are required at the terminals of the compatible GMFJ400C03 switch disconnector.
Supplied as a complete six-piece set, the GMX503 provides the terminal clamps required for the three-pole device. The terminals have a specified tightening torque of 22 Nm or 200 lb-in, helping provide secure conductor clamping when installed according to Lovato's requirements.
Key Advantages
Purpose-designed terminal lug kit for Lovato GMFJ400C03.
Supplied as a complete 6-piece terminal clamp set.
Accepts two conductors per terminal connection for high-current applications.
Six-piece kit for the compatible three-pole switch disconnector.
Designed specifically for GMFJ400C03.
Dual-conductor terminal arrangement.
2 × 35–150 mm² IEC conductor range.
2 × 6 AWG to 300 kcmil conductor range.
22 Nm / 200 lb-in terminal tightening torque.
Suitable for professional industrial power distribution and machinery installations.
High-Current Conductor Connections for Fused Switch Disconnectors
Terminal lug kits provide the mechanical and electrical interface between large power conductors and switchgear connection bars. The Lovato GMX503 is designed specifically for the GMFJ400C03, allowing two suitably sized conductors to be connected at each terminal position and supporting installations where parallel conductors are required to carry high circuit currents.
Correct terminal selection and tightening are important for dependable high-current electrical connections. The GMX503 supports conductors up to 2 × 150 mm² or 2 × 300 kcmil and has a specified tightening torque of 22 Nm, providing a manufacturer-defined termination solution for compatible Lovato fused switch disconnector installations.
High-current industrial power distribution panels.
Machinery main disconnect and isolation assemblies.
Industrial switchboards and electrical enclosures.
Applications using parallel rigid or flexible power conductors.
OEM machinery and control-panel construction.
Technical Specifications
HS Code
85365080
Manufacturer
Lovato Electric
Series
GM Switch Disconnector Accessories
Model
GMX503
Product type
Terminal clamp / terminal lug kit
Accessory function
Power conductor termination
Compatible switch disconnector
GMFJ400C03
Suitable cable types
Rigid and flexible conductors
Number of pieces
6
Conductors per terminal
2
IEC conductor cross-section
2 × 35–150 mm²
UL conductor range
2 × 6 AWG to 300 kcmil
Maximum conductor size per connection
2 × 300 kcmil
Tightening torque
22 Nm
Tightening torque, imperial
200 lb-in
EAN
8013975229989
ETIM classification
EC002498 - Accessories/spare parts for low-voltage switch technology
Compliance
IEC/EN 60947-1 and IEC/EN 60947-3
Frequently Asked Questions
What is the Lovato GMX503 used for?
The GMX503 is a six-piece terminal clamp and lug kit designed to connect rigid or flexible power conductors to the compatible Lovato GMFJ400C03 fused switch disconnector.
Which Lovato switch disconnector is compatible with the GMX503?
The Lovato GMX503 is specifically designed for the GMFJ400C03 fused switch disconnector.
What cable sizes can the GMX503 accept?
The GMX503 accepts two conductors from 35–150 mm² per connection. Its corresponding UL conductor range is 2 × 6 AWG to 300 kcmil.
How many terminal clamps are supplied with the GMX503?
The Lovato GMX503 is supplied as a complete six-piece set for use with the compatible three-pole GMFJ400C03 switch disconnector.
What is the tightening torque for the Lovato GMX503?
The manufacturer-specified tightening torque for the GMX503 terminal clamps is 22 Nm, equivalent to 200 lb-in.
Trusted Switch Disconnector Accessories from Lovato Electric
Lovato Electric GM terminal accessories provide manufacturer-matched conductor connections for industrial fused switch disconnectors, supporting secure installation of high-current rigid and flexible cables in machinery, switchboards and power distribution systems.
HS Code
85365080
Manufacturer
Lovato Electric
Series
GM Switch Disconnector Accessories
Model
GMX503
Product type
Terminal clamp / terminal lug kit
Accessory function
Power conductor termination
Compatible switch disconnector
GMFJ400C03
Suitable cable types
Rigid and flexible conductors
Number of pieces
6
Conductors per terminal
2
IEC conductor cross-section
2 × 35–150 mm²
UL conductor range
2 × 6 AWG to 300 kcmil
Maximum conductor size per connection
2 × 300 kcmil
Tightening torque
22 Nm
Tightening torque, imperial
200 lb-in
EAN
8013975229989
ETIM classification
EC002498 - Accessories/spare parts for low-voltage switch technology
Compliance
IEC/EN 60947-1 and IEC/EN 60947-3
No documents available for this product.
Delivery
We offer fast UK delivery on all stocked items. Orders placed before 3pm Monday to Friday are eligible for next-day delivery.
Standard delivery: 2–3 working days
Next-day delivery: available on in-stock items when ordered before 3pm
Express options available — contact us for details
Returns
If you need to return an item, please contact our sales team within 30 days of receipt. Items must be returned unused in their original packaging.
Our service agreements are built to support long term procurement relationships. By working closely with engineering teams and procurement departments, we help streamline purchasing processes while ensuring consistent access to critical components and sourcing support when it matters most.
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Customers supported
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LED Controls is a specialist distributor of factory automation and industrial controls, supplying OEMs, machine builders, panel builders and end users throughout the UK and worldwide. As a trusted UK distributor for many of the world’s leading automation manufacturers, we provide industrial control products, technical expertise and bespoke automation solutions backed by outstanding customer service.
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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...