Product Range

IP65 Rotary Isolation Switch Series

Four isolator families from 16A to 125A — IEC 60947-3 compliant rotary load isolation switches in IP65/IP66 weatherproof enclosures. Padlockable handles, silver contacts and visible disconnect for EV charging, solar PV, heat pump and industrial maintenance (LOTO).

SELHOT IP65 rotary isolation switch series UKFA UKF SHP IEC 60947-3

UKFA/B & UKF2 — IP65 Weatherproof Rotary Isolators

Surface-mount rotary isolator switches in flame-retardant PC/ABS housings — rated 20A/35A/63A at 250V/440V with 1P–4P pole options. Round or slim handle, neon indicator and padlockable OFF position for safe maintenance per IEC 60947-3 AC-23A.

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IP65 Weatherproof Isolation Switch
Model : UKFA/B Series

Matte PC housing with round or slim rotary handle and silver contacts. Padlockable visible disconnect for outdoor EV charger and heat pump isolator installs.

IP6520A–63A1P–4P440VPadlockableIEC 60947-3

View UKFA/B isolation switch specifications

IP65 weatherproof isolation switch UKFA/B series rotary isolator
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IP65 Weatherproof Isolation Switch
Model : UKF2 Series

Flame-retardant PC/ABS enclosure with neon indicator and corrosion-resistant polycarbonate body. Designed for AC circuit switching during construction and maintenance.

IP6520A–63A1P–4P440VNeon indicator750°C glow-wire

View UKF2 isolation switch specifications

IP65 weatherproof isolation switch UKF2 series

UKF4 — Mini Waterproof Isolating Switch

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Mini Waterproof Isolating Switch
Model : UKF4 Series

Compact 86×86 mm cube isolator in UV- and corrosion-resistant polycarbonate. Single and double pole models for tight wall spaces and indoor/outdoor sub-distribution.

IP6616A–32A1P/2P250VCompact-25°C to +40°C

View UKF4 mini isolator specifications

Mini waterproof isolating switch UKF4 series IP66

SHP — Heavy-Duty Load Isolation Switches

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SHP Series IP65 Waterproof Load Isolation Switch
Model : SHP Series

Polycarbonate enclosed rotary isolators from 16A to 125A — tested beyond 10,000 cycles for solar PV, motor control and power-supply switching applications.

IP6516A–125A2P–5P10,000+ cyclesSolar PVMotor control

View SHP load isolation switch specifications

SHP series IP65 waterproof load isolation switch
Technical Data

Isolation Switch Specifications & Parameters

Reference data for SELHOT IEC 60947-3 rotary isolator switches. Current ratings from 16A to 125A with 1P–5P pole configurations, padlockable handles and IP65/IP66 weatherproof enclosures for outdoor disconnect applications.

General Technical Parameters — Isolation Switch Series
ParameterSpecification
Standard ComplianceIEC 60947-3 switch-disconnector / isolator; AC-23A utilization category
Housing MaterialUV-stabilized PC (polycarbonate) / flame-retardant ABS
Ingress ProtectionIP65 / IP66 (dust-tight, water-jet protected enclosures)
Contact MaterialSilver contact points for reliable make/break
Flammability RatingGlow-wire 750–850°C (30 s); UL94 V-0 grades on select housings
Rated Voltage250V AC (1P/2P) / 440V AC (3P/4P)
Rated Current16A to 125A depending on series
Pole Configuration1P, 2P, 3P, 4P and 5P (SHP series)
Operating Temperature-25°C to +40°C (UKF4); extended range on UKFA/B and SHP
Safety FeaturesVisible disconnect, padlockable OFF position, rotary handle
CertificationCE, RoHS, TUV; tested per IEC 60947-3
Customization

Our Customizable Options

Whether you need a standard IP65 rotary isolator or a fully customized load isolation switch, SELHOT provides end-to-end OEM/ODM services — from current rating and pole configuration to handle type, padlock provision and private-label branding.

SELHOT custom color isolation switch OEM RAL grey isolator housings

Color

Match isolator enclosure colors to your brand or project palette. Standard RAL 7035 grey on UKFA/B, UKF2 and UKF4 series — with custom RAL matching for distributor private-label rotary isolator lines and municipal EV infrastructure projects.

Custom color options ›
Applications

Application Scenarios

Five installs that cover the full UKFA/B, UKF4 and SHP range — the amperage, pole count and IP rating buyers actually specify on EV, heat-pump, PV and motor-control jobs.

Highly suitable — Primary series for this duty Suitable — Works with correct amperage/pole selection Limited — Check rating; another series may fit better
UKFA/B IP65 rotary isolator on EV charger feeder — 32A 3P padlockable disconnect Highly Suitable

EV Charger AC Isolator

Wall-mounted charger32A/63A feederLOTO maintenance
UKFA/B

Wall-mounted beside the charger feed: UKFA/B (32A or 63A, 3P/4P, 440V) gives a padlockable OFF position and visible disconnect before inverter or pile service. Round or slim handle, 81×168 mm footprint — typical spec alongside SHPN outdoor MCB boards on commercial parking installs.

UKFA/B32A/63A 3PIP65Padlockable
UKFA/B outdoor isolator for air source heat pump unit — 20A 2P IP65 Highly Suitable

Air Source Heat Pump Outdoor Unit

ASHPOutdoor condenserBS 7671 / EN install
UKFA/B

Within 1 m of the outdoor unit: UKFA/B 20A or 32A in 2P/3P (250V/440V) is the standard weatherproof isolator for heat pump commissioning and annual service. IP65 PC housing, silver contacts and padlockable handle meet the local requirement for a dedicated maintenance disconnect on the supply side.

UKFA/B20A/32A 2P/3PIP65440V
SHP load isolation switch on solar PV inverter AC disconnect — 16A to 63A Highly Suitable

Solar PV Inverter AC Disconnect

String inverterAC side isolatorRoof/ground array
SHP

SHP series (16A–63A, IP65 polycarbonate enclosure) is engineered for solar PV AC isolation — lab-tested beyond 10,000 rotation cycles for daily inverter shutdown during install and O&M. Handles smooth rotary switching on the AC output circuit; pair with SHA/SHPN combiner enclosures on the same site.

SHP16A–63A10,000+ cyclesIP65
SHP rotary isolator for motor star-delta panel — up to 125A load switching Highly Suitable

Motor Star-Delta & Load Switching

Motor control panelStar-delta startPower supply switch
SHP

On motor control and distribution panels: SHP covers star-delta starting, power-supply switching, multi-tap winding reversal and ammeter/voltmeter circuit selection up to 125A. Built for repeated load-break duty under IEC 60947-3 AC-23A — the high-current option when UKFA/B (max 63A) is insufficient.

SHPUp to 125AStar-deltaAC-23A
UKF4 compact IP66 isolator in plant room — 86mm cube 16A 2P Highly Suitable

Plant Room & Compact Sub-Circuits

Plant room86×86 mm mountSingle/double pole
UKF4

Where wall space is tight: UKF4 fits a 86×86×86 mm cube with IP66 sealing for washdown-prone plant rooms and local AHU/fan isolators. Rated 16A–32A, 1P/2P at 250V — UV- and corrosion-resistant PC for conductive dust environments (-25°C to +40°C per datasheet).

UKF416A–32A 1P/2PIP6686 mm cube
Why SELHOT

Isolation Switch Manufacturer — SELHOT

SELHOT technical support icon
Technical Support
Over 20 years designing IEC 60947-3 rotary isolator switches and weatherproof disconnect devices. Our engineering team advises on current rating, pole selection and padlock/LOTO configuration for your project.
IEC 60947-316A–125A20+ Years
SELHOT quick response icon
Quick Response
We respect your timelines. Stock isolators ship within 15 days and samples are ready in just 3–5 days, keeping your EV, solar and OEM projects on schedule.
3–5 Day Samples15-Day Dispatch
SELHOT quality certification icon
Outstanding Quality
Every isolation switch passes strict pre-shipment testing — high/low temperature, waterproof (IPX5/IPX6), contact endurance and glow-wire — and carries CE, RoHS and TUV international certification.
CERoHSTUVIP65 Tested
SELHOT certified production icon
Certified Production
Production is monitored at every stage under an ISO 9001 quality system, across a 20,000 m² plant with 37 injection-molding machines and 22 dedicated test stations.
ISO 900137 Molding Lines22 Test Stations
Quality & Compliance

Certifications & Quality Testing

SELHOT isolation switches are independently certified and validated through a full in-house test regime before every shipment.

High & low temperature cycling (-25°C to +85°C)
IP waterproof spray & jet testing (IPX5 / IPX6)
Contact endurance & switching cycle testing
Dielectric strength & insulation resistance
UV aging & weather resistance
Flammability / glow-wire (750–850°C)
Padlock provision & handle torque testing
Salt spray corrosion (marine grades)

Isolation Switch Frequently Asked Questions

Q
What current ratings do your isolation switches offer?

Our range covers 16A to 125A across four series. UKFA/B and UKF2 offer 20A, 35A and 63A at 440V with 1P–4P poles. UKF4 compact isolators cover 16A–32A at 250V. SHP heavy-duty load switches handle up to 125A for solar PV and motor applications.

Q
Are your isolators padlockable for LOTO compliance?

Yes. UKFA/B, UKF2 and SHP series feature padlockable OFF positions for Lockout/Tagout (LOTO) procedures during EV charger, solar inverter and motor maintenance. The visible disconnect confirms de-energized state before work begins.

Q
Which standard do your isolation switches comply with?

All SELHOT rotary isolators comply with IEC 60947-3 for switch-disconnectors with AC-23A utilization category. Enclosures are tested to IEC 60529 for IP65/IP66 ingress protection. CE, RoHS and TUV certification is available on request.

Q
What is the difference between IP65 and IP66 isolators?

Both are fully dust-tight per IEC 60529. IP65 (UKFA/B, UKF2, SHP) protects against low-pressure water jets — ideal for EV charger and heat pump wall mounts. IP66 (UKF4) adds high-pressure jet protection for washdown and coastal installs in a compact cube enclosure.

Q
Can I use these isolators for EV charger installations?

Yes. UKFA/B and UKF2 IP65 rotary isolators (20A–63A, 2P/3P/4P) are widely specified for EV charger AC disconnect points. Padlockable handles meet maintenance safety requirements. Pair with SELHOT SHPN distribution boxes for complete outdoor feeder protection.

Q
Which certifications do your isolation switches carry?

Our isolators comply with IEC 60947-3 and carry CE, RoHS and TUV certification. Production is managed under an ISO 9001 quality system. Test reports for IP, contact endurance and glow-wire can be provided for import and project approval.

Q
What are your sample and delivery lead times?

Samples are typically ready in 3–5 days. Stock items ship within 15 days; lead times for large or fully customized orders are confirmed at quotation based on volume and tooling.

Q
What is your MOQ and do you support OEM/ODM?

MOQ depends on the model and level of customization and is confirmed at quotation. We support both OEM and ODM, including custom branding, handle types, current ratings and mold development for distributors and project buyers.

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