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HME21PN24AC IMO Compact power relay 24VAC 2 DPCO
IMO HME21PN24AC compact interface relay with two 8 A changeover contacts, a 24 V AC coil, LED indication and a manual test latch for industrial control and automation applications.
£6.84
Why Choose the IMO HME21PN24AC Compact Interface Relay?
The IMO HME21PN24AC is a compact and reliable 2-pole changeover (2PCO / DPCO) interface relay designed for switching and control applications in industrial automation, machinery and electrical control panels. As part of the IMO HME compact interface relay series, it combines an 8 A contact rating with a 24 V AC coil, LED indication and a manual test latch in a space-saving plug-in format.
Designed for straightforward installation, commissioning and maintenance, the HME21PN24AC incorporates a mechanical indicator window, LED status indication and a manual test button with latch. Industrial flat-pin connections enable installation into a compatible relay base, providing a practical solution for control cabinets where dependable switching, clear status indication and convenient servicing are important.
With two changeover contacts rated at 8 A and a 24 V AC nominal coil voltage, the HME21PN24AC is well suited to switching control circuits, contactors, signalling equipment and other industrial electrical loads. Its compact construction, high dielectric strength and long mechanical operating life support dependable operation in demanding automation and control environments.
Key Advantages
- Compact 2-pole changeover interface relay for industrial control applications.
- 8 A contact rating suitable for a wide range of control and switching duties.
- 24 V AC coil for compatible industrial control circuits.
- Integrated LED status indicator provides clear visual operating indication.
- Manual test button and latch assists commissioning, testing and fault finding.
- Mechanical indicator window provides additional visual confirmation of relay operation.
- Plug-in construction allows convenient installation, replacement and maintenance.
- High dielectric strength between coil and contacts supports dependable electrical isolation.
Key Features
- IMO HME compact interface relay series.
- 2-pole changeover (2PCO / DPCO) contact arrangement.
- 8 A contact rating.
- 24 V AC nominal coil voltage.
- 250 V AC / 30 V DC rated contact voltage.
- Maximum switching voltage of 275 V AC / 33 V DC.
- Maximum switching power of 1250 VA / 150 W.
- LED indication, mechanical indicator and manual test latch.
- Industrial flat-pin plug-in connections.
- Silver alloy contact material.
- High-sensitivity relay design for industrial interface applications.
Reliable Switching for Industrial Control Systems
Interface relays such as the IMO HME21PN24AC provide electrical switching between control equipment and field devices. Applying the 24 V AC control voltage to the relay coil operates two independent changeover contacts, providing flexible switching for contactors, indicators, alarms, interlocks and other industrial automation equipment.
The HME series is designed for convenient use within industrial control panels. Its plug-in construction supports rapid replacement, while the LED and mechanical indicators allow operating status to be checked visually. The manual test latch also enables technicians to operate the relay during commissioning, testing and maintenance without repeatedly energising the control circuit.
Typical Applications
- Industrial electrical control panels.
- PLC and automation interface circuits.
- Contactor and motor-control circuits.
- Machine control and interlocking systems.
- Alarm and signalling circuits.
- Building automation and HVAC control systems.
- Process control equipment.
- OEM machinery and production equipment.
Technical Specifications
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| Device Type | Plug-in Relay | |
|---|---|---|
| Terminal Type | PCB / pins | |
| Load Voltage | 275 V AC | |
| Switching Current (A) | 8 A | |
| Coil / Supply Voltage | 24 V AC | |
| Contacts | 2 C/O | |
| Manufacturer | IMO Precision Controls | |
| Series | HME Compact Interface Relays | |
| Model | HME21PN24AC | |
| Product type | Compact interface / power relay | |
| Contact arrangement | 2-pole changeover (2PCO / DPCO) | |
| Contact material | Silver alloy | |
| Contact rating | 8 A | |
| Rated contact voltage | 250 V AC / 30 V DC | |
| Maximum switching voltage | 275 V AC / 33 V DC | |
| Maximum switching power | 1250 VA / 150 W | |
| Coil voltage | 24 V AC | |
| AC coil power | 1.0 VA | |
| Coil resistance at 23°C | 240 Ω ±10% | |
| Insulation resistance | 1000 MΩ at 500 V DC | |
| Operate time | ≤20 ms | |
| Release time | ≤10 ms | |
| Dielectric strength, coil to contacts | 5000 V AC for 1 minute | |
| Dielectric strength, open contacts | 1000 V AC for 1 minute | |
| Dielectric strength, contact sets | 3000 V AC for 1 minute | |
| Mechanical life | ≥107 operations | |
| Electrical life | ≥105 operations | |
| Ambient operating temperature | -40°C to 55°C | |
| Relative humidity | 5% to 85% RH | |
| Atmospheric pressure | 86 to 106 kPa | |
| Vibration resistance | 10 Hz to 55 Hz, 1.0 mm DA | |
| Shock resistance | 1000 m/s² | |
| Connection type | Plug-in industrial flat pins | |
| Indication | Mechanical indicator and LED | |
| Manual operation | Test button with latch | |
| Weight | approx. 20 g | |
| HS Code | 8536490099 | |
| Country of Manufacture | China |
Frequently Asked Questions
What is the IMO HME21PN24AC used for?
The IMO HME21PN24AC is a compact interface relay used to switch electrical control circuits in industrial automation, machinery, control panels and related applications.
What contact configuration does the HME21PN24AC have?
The relay has a 2-pole changeover (2PCO / DPCO) contact arrangement, providing two independent changeover contacts.
What is the contact rating of the HME21PN24AC?
The HME21PN24AC has an 8 A contact rating, with contacts rated at 250 V AC / 30 V DC.
What coil voltage does the HME21PN24AC require?
The HME21PN24AC uses a 24 V AC nominal coil with an AC coil power of approximately 1.0 VA.
Does the IMO HME21PN24AC have an LED and test button?
Yes. The HME21PN24AC includes an LED indicator, mechanical indicator and manual test latch, making relay status checking, commissioning and maintenance more convenient.
Designed for Professional Industrial Control
IMO HME compact interface relays provide dependable switching in a space-saving plug-in format, combining industrial flat-pin connections with visual indication and manual testing features for practical use in automation, machinery and electrical control systems.
