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Shieldhz GF51 PV DC isolator switch product family banner with product logos retained
GF Series PV DC Isolation

GF51 PV DC Isolator Switch

PV DC isolation switch for household and commercial solar systems, covering IP66 waterproof box assemblies, MC4 connector options, and IP20 DIN rail switch bodies across 300V to 1500V DC rating rows.

300-1500VDCRating Rows
10A-32AIP66 Assembly
IP66 / IP20Install Forms
2P / 4P / 4T / 4B / 4S / 2HConfigurations
IEC 60947-3Standard
Certified & Standards-Based
Product Forms

One GF51 Family, Two Installation Forms

GF51 covers two installation forms: IP66 waterproof box assemblies for field PV isolation and IP20 DIN rail switch bodies for cabinet installation.

IP66 waterproof box800VDC-1500VDC enclosed assembly with M20, M25, or MC4 line type and 10A, 16A, 20A, 25A, 32A current options.
DIN rail IP20 bodyGF51-16, GF51-25, and GF51-32 switch bodies for internal cabinet mounting, vertical or horizontal installation.
PV utilization categoryCatalogue data lists DC-PV2, DC-PV1, and DC-21B for photovoltaic DC isolation and control use.
Fast DC interruptionApplication notes reference arc control, power-off time around 2 ms, and arc time below 8 ms.
Safety detailsGround terminal, removable cover condition, and lockable handle details should be checked against the selected drawing.
Approval contextReview IEC 60947-3, AS/NZS 60947.3:2015, AS60947.3, and final certificate copies for project approval.
GF51 IP66 PV DC isolator switch front route for product selection
Model Code

GF51 Ordering Structure

Specify GF51 by voltage row, current series, contact configuration, installation form, and cable entry. Because IP66 and IP20 versions share the GF51 name, the selected code should be checked before quotation.

GF5116 / 25 / 32/2P / 4P / 4T / 4B / 4S / 2H/IP66 / IP20/M20 / M25 / MC4

Series and current

GF51-16, GF51-25, and GF51-32 are the DIN rail current families; the IP66 box data also lists 10A, 16A, 20A, 25A, and 32A.

Contact configuration

2P and 4P follow the standard rating rows. 4T, 4B, and 4S are series input/output options; 2H is the parallel-pole configuration.

Installation form

Choose IP66 enclosed form for field mounting or IP20 DIN rail form for cabinet mounting. Specify vertical or horizontal installation.

Connection option

M20, M25, MC4, or terminal wiring should match the cable gland, connector, enclosure, and cabinet layout.

For 1500V DC ratings, keep the customization note visible until Shieldhz verifies the final drawing and certificate package.

Technical Data

GF51 Core Specifications From The Catalogue

These catalogue values separate the IP66 waterproof-box assembly from the IP20 DIN rail body so ratings are checked against the correct installation form.

IP66 waterproof box assembly

Rated voltage
800VDC-1500VDC summary
Rated current
10A, 16A, 20A, 25A, 32A
IP rating
IP66
Line type
M20, M25, MC4
Working temp.
-25°C to +85°C
Standard
IEC 60947-3; AS/NZS 60947.3:2015

IP20 DIN rail switch body

Type
GF51-16, GF51-25, GF51-32
Role
Isolator, control
Utilization
DC-PV2 / DC-PV1 / DC-21B
Rated insulation
Ui 1500V
Impulse withstand
Uimp 8.0kV
Protection
Switch body IP20

Mechanical and installation notes

Short-time withstand
1kA, 1s
Polarity
No polarity; + and – can be interchanged
Cycles
Mechanical 18000; electrical 2000
Install type
Vertical or horizontal
Pollution level
3
Arc note
Application sheet references arc time below 8 ms
Wire connectionType300V600V800V1500VUse note
2P / 4PGF51-16 Series16A16A12A8AStandard 2-pole or 4-pole configuration
GF51-25 Series25A25A15A8AStandard 2-pole or 4-pole configuration
GF51-32 Series32A32A17A8AStandard 2-pole or 4-pole configuration
4T / 4B / 4SGF51-16 Series16A16A16A16ASeries input/output configuration
GF51-25 Series25A25A25A25ASeries input/output configuration
GF51-32 Series32A32A32A32ASeries input/output configuration
2HGF51-16 Series35A35A//Parallel-pole configuration
GF51-25 Series40A40A//Parallel-pole configuration
GF51-32 Series45A40A//Parallel-pole configuration

Catalogue note: DC 1500V voltage requires customization. Attach the final voltage row, connection diagram, and certificate market to the RFQ. For standards context, compare the project requirement with UL industrial control equipment standards guidance and the final Shieldhz certificate package.

Product Forms

Enclosed, MC4, And DIN Rail GF51 Variants

Match the product image to the model code. GF51 should not be quoted from a photo alone because waterproof-box, connector, and DIN rail versions use different accessories and documents.

GF51 IP66 PV DC isolator switch waterproof box bottom connector route

IP66 enclosed assembly

Field-mounted waterproof box for PV string isolation, with M20, M25, or MC4 cable-entry selection.

GF51 IP66 PV DC isolator switch open enclosure internal wiring route

Internal wiring check

Use the open view to check terminal access, gasket path, cover position, and cable entry before drawing release.

GF51 DIN rail PV DC isolator switch product family with product label retained

DIN rail IP20 body

Cabinet-mounted option for GF51-16, GF51-25, and GF51-32 switch bodies with vertical or horizontal installation.

Drawings And Configuration

Wiring, Switch Configuration, And Dimension References

GF51 drawings support rating selection, contact configuration, terminal layout, and cabinet clearance checks. Open the wiring and dimension drawings in modal view when the project needs engineering review before quotation.

GF51 wiring example

GF51 PV DC isolator switch 4P wiring diagram with Shieldhz logo and DC rating table

Example 4P wiring configuration and rating reference from the catalogue graphic. Use it to verify the selected contact code before quotation.

Dimension and terminal drawing

GF51 PV DC isolator switch dimension and terminal wiring drawing

Dimension drawing for cabinet layout, front clearance, handle projection, terminal position, and mounting checks.

2P2-pole configuration for standard input and output isolation.
4P4-pole configuration for dual string or expanded isolation wiring.
4T2-pole and 4-pole series input and output at the bottom.
4B2-pole and 4-pole series input and output at the top.
4SSeries input/output configured at both top and bottom.
2HParallel-pole configuration for the higher current rows shown at 300V and 600V.
60.8 / 59.8 mmFront Width
97 mmBody Height
86 mmOverall Depth
45 mmHandle Projection
6.4 mmMount Hole Ref.

Drawing note: match the opened drawing to the selected GF51 configuration before release. The approval package should confirm contact configuration, voltage row, IP rating, terminal layout, cable entry, and document requirements.

Selection Matrix

How To Specify A GF51 Inquiry

Do not quote GF51 from a product picture alone. Specify current, voltage, contact configuration, installation form, cable entry, and document requirements before order release.

1

Select installation form

Choose IP66 waterproof box or IP20 DIN rail switch body before comparing ratings.

2

Select voltage row

Use 300V, 600V, 800V, or 1500V DC from the PV array and derating requirement.

3

Select current

Use 10A-32A for IP66 box assemblies, or GF51-16 / GF51-25 / GF51-32 for DIN rail bodies.

4

Select contact code

Select 2P, 4P, 4T, 4B, 4S, or 2H from the switch configuration diagram.

5

Check documents

Request drawing, label data, certificate copy, IP rating, cable entry, and inspection requirement.

GF51 PV DC isolator switch specification reference for voltage current and installation route
Specification reference for voltage, IP rating, line type, and working temperature.
Certificate ReferencesCE / TUV / CB
View Resource Center
Certificate files are pulled from the Shieldhz Resource Center and should be matched to the final GF51 model code, rating row, and approval market.

For fast review, send DC voltage, current, contact configuration, IP66 or IP20 installation form, cable entry, target market, quantity, and any customization requirement. If the selection is unclear, compare GF40 enclosed string isolation and GF41 higher pole-count selection first.

FAQ

GF51 PV DC Isolator FAQ

What is GF51 used for?

GF51 is used as a PV DC isolation switch between photovoltaic modules, combiner boxes, DC cabinets, and inverter inputs. It separates IP66 enclosed field isolation from IP20 DIN rail cabinet mounting, so buyers can match the switch form to outdoor or cabinet installation.

What voltage and current rows does GF51 cover?

The GF51 tables list 300V, 600V, 800V, and 1500V DC rating rows. For 2P and 4P configurations, GF51-16 is 16A, 16A, 12A, and 8A; GF51-25 is 25A, 25A, 15A, and 8A; GF51-32 is 32A, 32A, 17A, and 8A. The IP66 waterproof box assembly also lists 10A, 16A, 20A, 25A, and 32A.

What is the difference between the IP66 and IP20 GF51 versions?

The IP66 version is a waterproof PV DC isolator box with M20, M25, or MC4 cable entry and a -25 deg C to +85 deg C working range. The IP20 version is a DIN rail switch body for cabinet installation, with vertical or horizontal mounting and storage temperature data from -40 deg C to +85 deg C.

Which GF51 switching configurations are available?

The configuration table lists 2P, 4P, 4T, 4B, 4S, and 2H. The 4T, 4B, and 4S options are series input/output configurations, while 2H is the parallel-pole configuration shown for higher current rows at 300V and 600V.

What GF51 dimensions should be checked before cabinet layout?

The dimension drawing shows approximately 60.8 mm top width, 59.8 mm bottom width, 97 mm body height, 86 mm overall depth, 64 mm and 53.5 mm side references, 45 mm handle projection, and a 6.4 mm mounting-hole reference.

What data is needed for a GF51 quotation?

Send the DC voltage row, current series, contact configuration, IP66 or IP20 installation form, M20/M25/MC4 or terminal connection, wiring direction, approval market, quantity, and whether a 1500V rating requires customization.

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For direct email, contact [email protected] or [email protected].

White transparent line art of Shieldhz GF40 GF51 and GF41 PV DC isolator switches for CTA background
Inquiry

Send GF51 Model Requirements

Share voltage row, current series, contact configuration, IP66 or IP20 installation form, connection type, wiring direction, target approval market, and quantity. Shieldhz will check the GF51 model code, drawing, certificate file, MOQ, lead time, and document package before quotation.