Standard delivery
£8 ex VAT · free over £200UK parcel delivery is £8 ex VAT, or free on orders over £200 ex VAT.
Heavier items may be charged at a weight-based or pallet rate, shown at checkout.
MERSEN FUSE MIDGET US HOLDER CLAMP 1P PV USGM1HEL
Mersen USGM1HEL UltraSafe single-pole photovoltaic fuse holder rated 32 A and 1000 V DC, with WAGO CAGE CLAMP terminals, IP20 protection and DIN rail mounting.
£8.48
Why Choose the Mersen USGM1HEL UltraSafe™ Photovoltaic Fuse Holder?
The Mersen USGM1HEL is a compact and dependable single-pole photovoltaic fuse holder designed for high-voltage DC solar protection systems. Part of the advanced Mersen UltraSafe™ USGM series, it combines finger-safe fuse access with screwless spring-pressure wiring technology for faster, more reliable panel installation.
This fuse holder uses proven WAGO CAGE CLAMP® terminals, providing a secure, vibration-resistant and maintenance-free connection for solid or stranded copper conductors. The spring-pressure termination system can significantly reduce wiring time while maintaining consistent contact pressure through temperature cycling, vibration and long-term service.
Rated for up to 1000 V DC and 32 A, the USGM1HEL is specifically configured for compatible 10 × 38 mm photovoltaic midget fuse-links, including Mersen HP6M and HP10M fuses. Its narrow DIN rail-mounted housing and IP20 finger-safe design make it ideal for photovoltaic combiner boxes, inverter protection panels and high-voltage DC distribution equipment.
Key Advantages
- Designed specifically for photovoltaic fuse protection.
- 1000 V DC rating for high-voltage solar installations.
- 32 A holder rating with support for fuse-links up to 30 A.
- Screwless WAGO CAGE CLAMP® terminals reduce installation time.
- IP20 finger-safe construction improves operator protection.
- Compact single-pole design conserves DIN rail space.
Key Features
- Mersen UltraSafe™ USGM photovoltaic fuse holder.
- Catalogue number: USGM1HEL.
- Single-pole configuration.
- 1000 V DC rated voltage.
- 32 A holder rating.
- Compatible with 10 × 38 mm photovoltaic midget fuses.
- Screwless spring-pressure cage-clamp connections.
- DIN rail mounting with IP20 finger-safe protection.
Safe and Efficient Photovoltaic Fuse Installation
Photovoltaic fuse holders provide a secure mounting and connection point for fuse-links protecting solar strings, combiner circuits and inverter inputs. A properly specified holder must withstand high DC voltage, repeated thermal cycling and the fault-current conditions associated with photovoltaic power systems.
The Mersen USGM1HEL combines UltraSafe finger protection with spring-pressure wiring technology to simplify installation and improve connection reliability. Its compact DIN rail format allows multiple holders to be installed efficiently within photovoltaic combiner boxes and DC control panels.
Typical Applications
- Photovoltaic string combiner boxes.
- Solar inverter DC input protection.
- Commercial rooftop PV installations.
- Utility-scale photovoltaic systems.
- High-voltage DC distribution panels.
- Renewable energy control cabinets.
Technical Specifications
Tick the specs you need, then view products that match.
| Fuse Indication | None | |
|---|---|---|
| Phase | Single Phase | |
| Poles | 1-pole | |
| Device Type | Fuse base / holder | |
| Fuse Type | PV (gPV) | |
| Voltage | 1000 V | |
| Manufacturer | Mersen | |
| Series | UltraSafe™ USGM | |
| Model | USGM1HEL | |
| Product type | Photovoltaic fuse holder | |
| Fuse class | Midget | |
| Compatible fuse dimensions | 10 × 38 mm | |
| Number of poles | 1 | |
| Rated voltage | 1000 V DC | |
| Holder current rating | 32 A | |
| Maximum fuse rating | 30 A | |
| Short-circuit current rating | Up to 100 kA DC | |
| Fuse installation method | Clip-in | |
| Terminal type | WAGO CAGE CLAMP® spring-pressure terminals | |
| Single-conductor wiring range | 2.5 to 16 mm² | |
| Dual-conductor wiring range | 2.5 to 5 mm² | |
| Wire type | Solid or stranded copper | |
| Wire strip length | 12 to 13 mm | |
| Mounting type | DIN rail | |
| Protection rating | IP20 | |
| Housing material | Polyamide | |
| Flammability rating | UL 94 V-0 | |
| Operating temperature | -40°C to +85°C | |
| Power loss | 3 W or less | |
| Dimensions (L × W × H) | 104.9 × 17.3 × 55.1 mm | |
| Product weight | Approx. 0.0635 kg | |
| Indicator | No blown-fuse indicator | |
| RoHS compliance | Compliant | |
| EAN / UPC | 782001437985 | |
| HS Code | 85369095 | |
| Country of Manufacture | China |
Frequently Asked Questions
What is the Mersen USGM1HEL used for?
The Mersen USGM1HEL is used to mount and connect compatible photovoltaic midget fuse-links within high-voltage DC solar protection systems.
What voltage is the USGM1HEL rated for?
The fuse holder is rated for photovoltaic circuits operating at up to 1000 V DC.
Which fuse-links are compatible with this holder?
The USGM1HEL accepts compatible 10 × 38 mm photovoltaic midget fuse-links, including Mersen HP6M and HP10M fuses rated up to 30 A.
How are conductors connected to the fuse holder?
Conductors are connected using screwless WAGO CAGE CLAMP® spring-pressure terminals, which provide a secure and maintenance-free electrical connection.
Does the USGM1HEL include a blown-fuse indicator?
No. The USGM1HEL does not include a visual blown-fuse indicator. The Mersen USGM1IHEL is the corresponding version with an indicator.
Trusted by Solar and Electrical Professionals Worldwide
Mersen UltraSafe™ fuse holders are widely used by panel builders, solar installers and electrical engineers for safe, efficient and reliable fuse installation in photovoltaic and industrial DC systems.
