Mersen GPM-S Midget Fuse Block, 600VAC/600VDC 30A Panel Mount
The Mersen GPM-S Midget Fuse Block delivers reliable circuit protection for both AC and DC applications with a dual 600VAC/600VDC rating and 30A current capacity. This panel-mount fuse block features durable thermoplastic construction, a 1-pole configuration, and quick connect terminals with a solder screw knob design for versatile installation. Backed by a 100 kA short circuit current rating (SCCR) and clip-in fuse installation, the GPM-S is built for professional-grade protection in control panels and electrical enclosures.
Key Features
- Dual Voltage Rating: 600VAC/600VDC capability provides flexibility for diverse electrical applications and system requirements.
- 30A Current Rating: Handles substantial current loads while maintaining reliable protection and operational safety.
- Thermoplastic Construction: Durable insulating material ensures long-term performance and electrical isolation in demanding environments.
- Quick Connect Terminals: Streamlined installation with 1/4in quick connect and solder screw knob options for versatile wiring methods.
- 1-Pole Configuration: Compact single-pole design with clip-in fuse installation for straightforward servicing.
- 100 kA SCCR: High short circuit current rating provides robust fault protection and system reliability.
- Panel Mount Design: Professional mounting configuration enables secure installation in control panels and electrical enclosures.
- RoHS Compliant: Meets environmental standards for responsible manufacturing and regulatory compliance.
Certifications & Compliance
- RoHS Compliant
Technical Specifications
- Ac Or Dc: AC/DC
- Ampere Rating: 30 A
- Body Insulating Material: Thermoplastic
- Design Details: Screw Knob
- Frequency Hz: 50/60 Hz
- Fuse Installation Method: Clip-in
- Fuse Type Class: Midget
- Installation Mounting: Panel Mount
- Max Fuse Rating: 30 A
- Number Of Poles: 1-Pole
- Product Height: 1.13 in
- Product Length: 2.42 in
- Product Weight: 0.065 lb
- Product Width: 1.13 in
- Rated Voltage Ac Ul: 600 V
- Rated Voltage Dc Ul: 600 V
- Rohs Compliant: Yes
- Short Circuit Current Rating Sccr: 100 kA
Typical Applications
- Industrial Control Panels
- Commercial Electrical Systems
- Power Distribution Equipment
- Motor Control Centers
- Process Control Systems
- Instrumentation Panels
- Automation Equipment
Why Mersen?
Mersen delivers proven reliability in electrical protection with thermoplastic construction, RoHS compliance, and professional-grade 600VAC/600VDC, 30A, 100 kA SCCR specifications. The compact 1-pole design and dual voltage capability ensure versatile performance across diverse applications while maintaining the durability and safety standards required for critical electrical systems.
Manufacturer Resources
Mersen Product Catalog
Product Specs
- AC or DC:
- AC/DC
- Ampere Rating:
- 30 A
- Body/Insulating Material:
- Thermoplastic
- Design Details:
- screw Knob
- Frequency (Hz):
- 50/60 Hz
- Fuse Installation Method:
- Clip-in
- Fuse Type Class:
- Midget
- Installation Mounting:
- Panel Mount
- Max Fuse Rating:
- 30 A
- Number Of Poles:
- 1-Pole
- Product Height:
- 1.13 in
- Product Length:
- 2.42 in
- Product Weight:
- 0.065 lb
- Product Width:
- 1.13 in
- Rated voltage AC UL:
- 600 V
- Rated voltage DC UL:
- 600 V
- Rohs Compliant:
- Yes
- Short Circuit Current Rating Sccr:
- 100 kA
- Product Type:
- Fuse Block
- Department:
- Electrical
- Product Group:
- Circuit Protection
- Product Subgroup:
- Fuse Holders & Blocks
Mersen GPM-S – Frequently Asked Questions
1) What size fuse does the Mersen GPM-S fuse block take?
The GPM-S accepts Class Midget fuses up to 30 A, and the fuse clips in rather than threading or bolting down. That makes swapping a blown fuse a pull-and-push job with no terminal hardware to loosen. Anything above 30 A needs a different block.
2) Can I use the Mersen GPM-S midget fuse block on a 600V DC circuit?
Yes. The GPM-S is rated 600 V on both AC and DC, so it works in DC bus and solar or battery circuits as well as 50/60 Hz AC control power. A lot of midget blocks are AC-only, so the DC rating is the reason to pick this one for a DC application.
3) How do the wires land on the Mersen GPM-S, screw terminals or quick connect?
Both. The GPM-S uses 1/4 in quick connect tabs with a solder screw knob design, so you can push on a crimped female spade for fast panel wiring or land the conductor under the screw knob. Useful when you are building a harness off the panel and want to drop it in later.
4) Is this fuse block panel mount or DIN rail mount?
Panel mount. The GPM-S fastens directly to the enclosure back panel or subpanel, not onto a 35 mm DIN rail. If your control panel is built out on DIN rail, you want a DIN-mount midget holder instead, otherwise you will be drilling and tapping the back plate for this one.
5) For a 400A three-phase service feed, should I use the Mersen GPM-S or an ABB MeterMod III?
Use the ABB MeterMod III, which is a 400 A three-phase main lug panelboard built for service-level distribution. The Mersen GPM-S tops out at a 30 A maximum fuse rating in a single-pole, panel-mount midget fuse block and is intended for protecting individual control and instrumentation circuits, not for carrying a 400 A three-phase feed.
6) How much panel space do I need for the Mersen GPM-S fuse block?
Plan on a footprint of 2.42 in by 1.13 in with 1.13 in of height. It is a single-pole block, so a three-phase circuit takes three of them mounted side by side. Weight is negligible at 0.065 lb, so no extra bracing is needed on a subpanel.
7) How many Mersen GPM-S blocks do I need for a three-phase feeder?
One per phase. The GPM-S is a 1-pole block, so a three-phase branch needs three units, and a two-wire control circuit needs two. Ordering one and expecting a three-pole assembly is the common mistake here.
8) What is the exact part number to order this Mersen midget fuse block?
The Mersen part number is GPM-S. It is a single catalog number covering the 30 A, 600 V AC/DC, 1-pole panel mount midget block, so there is no finish, pole, or terminal option to specify when ordering.
9) Can I use the GPM-S fuse block as a panelboard for branch circuit distribution?
No. The GPM-S is a single-pole fuse holder for one midget fuse, not a distribution panelboard. If you need multi-circuit distribution with a bus, look at a true panelboard such as the ABB ReliaGear Pro-Stock 42-circuit copper bus panelboard or the ABB MeterMod III 400 A three-phase main lug panelboard.
10) Is the Mersen GPM-S body rated for a hot enclosure and is it RoHS compliant?
The block body is molded thermoplastic for electrical isolation, and it is RoHS compliant, which matters for institutional and export specs that require restricted-substance documentation on panel components.
How fast can I get the Mersen GPM-S delivered?
Most orders ship the same day from our distribution partners, with quick delivery throughout the
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Can I return it if it doesn’t work for me?
Yes—ZenSupply offers a hassle-free return policy. If the product isn’t the right fit,
reach out to our support team for a return authorization or setup a return by following our return instructions.
Does the Mersen GPM-S come with a warranty?
Absolutely. The Mersen GPM-S is backed by a manufacturer’s warranty.
For full warranty terms, check the product documentation or Contact Us.
How do I get technical support or installation help for the Mersen GPM-S?
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