Stag Isolator 4 Pole, 20 Amp Enclosed IP65 (IS4P20)

Stag Isolator 4 Pole, 20 Amp Enclosed IP65, 125x100x85mm (IS4P20)

Description

The Stag IS4P20 Enclosed 4 Pole 20 Amp Isolator is a rotary isolator switch designed to safely disconnect AC power from circuits or equipment. It is commonly used in industrial, commercial, and residential electrical systems for safe isolation of low-to-medium current circuits.

The IS4P20 Enclosed Rotary Isolator is a robust 4-pole AC isolator for three-phase and neutral electrical circuits. Rated at 20A and compliant with IEC / EN 60947-3, it is suitable for industrial, commercial, and renewable energy applications. Its durable IP65 polycarbonate enclosure ensures protection against dust and water ingress, making it ideal for indoor and outdoor use.

Installation

1. Ensure the power supply is fully isolated before starting installation.
2. Mount the isolator using the external mounting points on the enclosure.
3. Confirm the rotary handle is in the OFF position (lid interlocks prevent opening while ON).
4. Select appropriate cable entry points and open the required gland knockouts (M20 or M25).
5. Connect incoming supply cables to terminals L1, L2, L3, and N.
6. Connect outgoing load cables to terminals T1, T2, T3, and N.
7. Terminate the earth conductor using the additional earth connection.
8. Tighten terminal screws to the recommended torque of 2 Nm.
9. Close the enclosure lid and secure it with stainless steel screws.
10. Rotate the handle to the ON position to energize the circuit.

Operating Features

• 4-Pole Isolation: Disconnects all three phases and neutral simultaneously.
• Lockable Rotary Handle: Can be padlocked in the OFF position for maintenance safety.
• Interlocked Enclosure Lid: Prevents access to live parts when the switch is ON.
• Flame-Retardant Enclosure: Enhances fire safety.
• IP65 Protection: Dust and water jet resistant for indoor/outdoor use.

Notes

• Installation must be done by a qualified electrician according to local regulations.
• Verify correct phase rotation and neutral connection before energizing.
• Intended for isolation purposes, not for frequent load switching.

Technical Specifications

PARAMETER	SPECIFICATION
Model	IS4P20
Poles	4 Pole
Rated Operational Current (AC21)	20 A
Rated Operating Voltage	230 – 440 V AC
Rated Voltage	415 V
Frequency	50 / 60 Hz
Rated Insulation Voltage (Ui)	690 V
Rated Power (3-Phase Motor @ 415V, AC23A)	5.5 kW
Ingress Protection	IP65 (Enclosure), IP20 (Body)
Maximum Cable Size	10 mm² (Solid / Stranded)
Enclosure Material	Flame-retardant Polycarbonate
Lid Screw Material	Stainless Steel
Dimensions (H × W × D)	125 × 100 × 85 mm
Depth (Including Handle)	120 mm
Weight	0.52 kg
Compliance	IEC / EN 60947-3, RoHS
Approvals	CE, SEMKO

Optional Auxiliary Contact

The SAC32-11 auxiliary contact fits IS4P20 and similar low-current isolators. Provides 1 NO and 1 NC contact for control or signaling circuits.

PARAMETER	SPECIFICATION
Part Number	SAC32-11
Contact Configuration	1 NO, 1 NC
Rated Operational Current AC15 (230V)	6 A
Rated Operational Current DC13 (125V)	1.1 A
Rated Operational Current DC13 (250V)	0.55 A
Rated Insulation Voltage (Ui)	500 V
Maximum Fuse	10 A (gG/gL)
Max Cable Size (Solid)	0.75 – 2.5 mm²
Max Cable Size (Flexible w/ Ferrule)	0.5 – 1.5 mm²
Tightening Torque	0.6 Nm
Compliance	IEC / EN 60947-3, RoHS
Approvals	CE

Technical

Technical Datasheet

Certifications

CE Declaration