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Phoenix Contact Safety Relay 24V AC/DC, 2 Safety Contacts, 1 Auxiliary Contact, IP67, Model THC4
Specifications
| Country of Origin | Germany |
|---|---|
| Brand | Phoenix Contact |
| Height | 114.5mm |
| Length | 99mm |
| Model | THC4 |
| IP Rating | IP67 |
| Width | 22.5mm |
| Series | PSR-SCP- 24UC/THC4/2X1/1X2 |
| Maximum Operating Temperature | 55°C |
| Minimum Operating Temperature | -20°C |
| Safety Category | PLe/Category 4 EN ISO 13849-1 |
| Terminal type | Screw |
| Hazardous Area Certification | IECEx, ATEX |
| Standards/Approvals | EAC |
| Coil Voltage | 24V ac/dc |
| Switching DC Voltage | 250V dc |
| Switching AC Voltage | 250V ac |
| Contact Current | 125mA |
| Safety Contacts | 2 |
| Number of Auxiliary Contacts | 1 |
Key Features
- This compact relay has an IP67 rating ensuring protection against dust and water ingress.
- Suitable for use in harsh industrial environments thanks to shock and vibration resistance.
- Features screw connection terminals for secure electrical contact.
- Equipped with silver-tin-oxide contacts providing corrosion resistance and long service life.
- Complies with safety standards including PLe/Category 4 EN ISO 13849-1, IECEx, and ATEX certifications.
- Supports switching voltages up to 250V AC and DC, with contact current rating of 125mA.
- Compact dimensions of 99 mm length, 22.5 mm width, and 114.5 mm height allow installation in limited spaces.
- LED signaling enables simple status and voltage monitoring for rapid diagnostics.
Product Description
Phoenix Contact THC4 safety relay, part number 2963721, is designed for two-hand control devices in industrial automation settings operating at 24V AC/DC. It features two safety contacts and one auxiliary contact ensuring reliable safety switching functions with automatic activation and concurrence monitoring within 0.5 seconds.
Constructed with a durable polyamide housing and silver-tin-oxide contacts, this relay offers corrosion resistance and a long operational lifespan. The device is shock and vibration resistant and rated IP67, making it suitable for harsh environmental conditions including those requiring protection from dust and water.
Compact dimensions (99 mm length x 22.5 mm width x 114.5 mm height) and DIN rail mounting capability allow flexible installation vertically or horizontally in control cabinets and safety circuits.
Safety standards compliance includes PLe/Category 4 according to EN ISO 13849-1, SIL CL 3 IEC 62061, SIL 3 IEC 61508, and hazardous area certifications IECEx and ATEX, enabling use in safety-critical factory automation and machinery protection applications.
The relay supports switching voltages up to 250V AC/DC, contact current rating of 125 mA, and is supplied with screw terminal connections for secure wiring. A built-in LED indicator provides clear operational and fault status for rapid diagnostics.
This compact safety relay is designed for two-hand control devices as per EN 574 type IIIC. Automatic activation and rapid concurrence monitoring enhance safety functions in industrial machinery. Robust polyamide housing and corrosion-resistant silver-tin-oxide contacts extend reliability.
Rated IP67 for protection against dust and water ingress in tough environmental conditions. Complies with key international safety standards ensuring high safety integrity levels. Easy to install using standard DIN rail systems with screw terminals.
LED status indication simplifies troubleshooting and maintenance.
Ideal for industrial, manufacturing, and automation environments requiring reliable Safety Relays for two-hand control and safety door circuits. Discover reliable safety automation products in EnvMart’s comprehensive catalogue of Phoenix Contact relays and safety components.
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Frequently Asked Questions
The coil voltage for this model is 24V AC/DC.
It supports switching voltages up to 250V AC and 250V DC.
This safety relay is equipped with two safety contacts and one auxiliary contact.
The contact current rating is 125 mA.
The dimensions are 99 mm in length, 22.5 mm in width, and 114.5 mm in height.
It has an IP67 rating, providing protection against dust and water ingress.
The operating temperature range is from -20°C to 55°C.
It features screw connection terminals for secure electrical contact.
It complies with PLe/Category 4 EN ISO 13849-1, SIL CL 3 IEC 62061, and SIL 3 IEC 61508, as well as hazardous area certifications IECEx and ATEX.
This safety relay can be mounted on a DIN rail, allowing for flexible installation in control cabinets.
The housing is constructed from durable polyamide, providing resistance to shock and vibration.
Yes, it features a built-in LED indicator for clear operational and fault status monitoring.
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