steve
Got hold of Sime for a Carrier card for…
Got hold of Sime for a Carrier card for a chiller. Machine down in a factory. Received the new card in express time machine and plant now up and running fantastic service form Sime
3 months ago
774029
Pilz 774029 available at EU Automation. Get in touch today for a quick price.
Based on over 4900 reviews
Full 12-month warranty
Available for dispatch immediately
We deliver worldwide
What happens next?
1. Email confirmation
You will get an email confirming that we have received your enquiry.
2. Dedicated Account Manager
One of our team will be in touch to confirm your part(s) specification and condition.
3. Your quote
You will receive a comprehensive quote tailored to your specific needs.
All orders are subject to product availability. See our T&Cs.
Ask our team
What happens next?
1. Email confirmation
You will get an email confirming that we have received your enquiry.
2. Dedicated Account Manager
One of our team will be in touch to confirm your part(s) specification and condition.
3. Your quote
You will receive a comprehensive quote tailored to your specific needs.
The Pilz 774029 PZA 300 is a standalone 24 V DC safety relay designed for delay-on-energisation timing in industrial control circuits. It features a single-channel input, one normally open delayed safety contact and two normally closed delayed auxiliary contacts. Twelve selectable timing settings between 30 and 300 seconds allow the relay to be configured for different machine sequencing requirements.
Fixed screw terminals provide straightforward wiring connections, while the 45 mm-wide housing measures 87 mm high and 121 mm deep. Rated for an ambient temperature range of −10 °C to +55 °C, the PZA 300 offers a compact timing solution for industrial automation panels. Its contact ratings include 3 A at DC-13 with six switching cycles per minute and 4 A at AC-15.
Fixed screw terminals provide straightforward wiring connections, while the 45 mm-wide housing measures 87 mm high and 121 mm deep. Rated for an ambient temperature range of −10 °C to +55 °C, the PZA 300 offers a compact timing solution for industrial automation panels. Its contact ratings include 3 A at DC-13 with six switching cycles per minute and 4 A at AC-15.
| Specification | Description |
|---|---|
| Manufacturer | Pilz |
| Part number | 774029 |
| Model | PZA 300/24VDC 1n/o 2n/c |
| Product type | Standalone safety timer relay |
| Description | A 24 V DC timer relay that provides delayed energisation through one normally open safety contact and two normally closed auxiliary contacts, with 12 selectable timing settings. |
| Supply voltage | 24 V DC |
| Input configuration | Single-channel wiring |
| Timing function | Delay-on energisation |
| Delayed safety contacts | 1 normally open (N/O) contact |
| Delayed auxiliary contacts | 2 normally closed (N/C) contacts |
| Selectable delay times | 30, 40, 50, 70, 90, 120, 150, 180, 210, 240, 270 and 300 seconds |
| Terminal arrangement | Integral, fixed screw terminals |
| Maximum switching current, AC-15 | 4 A |
| Maximum switching current, DC-13 | 3 A at 6 operating cycles per minute |
| Stop category | 0 |
| Listed standards | EN 60204-1; EN 62061; EN ISO 13849-1; VDE 0113-1 |
| Listed approvals | CE; cULus Listed; TÜV; CCC |
| Ambient temperature range | −10 °C to +55 °C |
| Width | 45 mm |
| Height | 87 mm |
| Depth | 121 mm |
| Net weight | 255 g |
| Gross weight | 265 g |
| Optional accessory | Pilz COVER P-93, part number 774090 |
What does this relay do?
The PZA 300 is a standalone safety relay with a delay-on energisation timer. It provides a timed switching function using one normally open safety contact and two normally closed auxiliary contacts.
What supply voltage does the relay require?
The relay requires a nominal 24 V DC supply. This version is not specified for an AC supply.
How many output contacts are provided?
There is one delayed normally open safety contact and two delayed normally closed auxiliary contacts. All three are specified with delay-on energisation operation.
Which timer settings can be selected?
The technical specification lists 12 selectable settings: 30, 40, 50, 70, 90, 120, 150, 180, 210, 240, 270 and 300 seconds.
Is the timing function delay-on energisation or delay-on de-energisation?
This model uses delay-on energisation. It is not specified as a delay-on de-energisation timer, so the timing behaviour should be checked against the intended control sequence.
What input wiring arrangement does the relay use?
The relay is specified for single-channel input wiring. The machine's control design should be checked to ensure that this input arrangement is appropriate.
What type of terminals does it have?
The unit has integral, fixed screw terminals for connecting the supply, input and output wiring.
How much space does the relay require?
The housing measures 45 mm wide, 87 mm high and 121 mm deep. Allow additional space in the control cabinet for wiring access and the installation clearances required by the equipment instructions.
What are the specified contact current ratings?
The maximum stated current is 4 A under the AC-15 utilisation category and 3 A under DC-13 at six switching cycles per minute. These ratings are load-category dependent and should not be treated as universal ratings for every connected load.
What ambient temperature range is specified?
The specified ambient temperature range is −10 °C to +55 °C. Check the temperature inside the control cabinet when assessing suitability.
What is the net weight of the relay?
The listed net weight of the Pilz 774029 is 255 g.
What should be checked when selecting this relay for an existing control panel?
Check the 24 V DC supply, single-channel input arrangement, delay-on energisation function, available timer settings, contact configuration and load ratings. The housing dimensions and ambient temperature limits should also match the installation requirements.
- Providing controlled delay-on-energisation timing in industrial machinery.
- Introducing timed pauses before enabling selected machine functions.
- Supporting sequential start-up of conveyor sections and material-handling equipment.
- Coordinating delayed switching within automated production and assembly systems.
- Providing delayed auxiliary contacts for status indication and control circuit interlocking.
- Adding adjustable timing functions to 24 V DC machine control panels.
This content has been produced using multiple sources. EU Automation takes no responsibility for the accuracy of this information. Always consult the original equipment manufacturer for the most up to date instructions and information.
Delivery
- Logistic partners UPS, FedEx and DHL
- International delivery available
- Premium nine hour delivery service available to anywhere in Europe
- Same day dispatch from group stock
Warranty
All parts new or reconditioned are covered by EU Automation 12 month warranty
Returns
No hassle returns policy
Dedicated customer support team
Payment
Trade CreditWe understand that credit is a necessary part of business and offer credit agreements on request, subject to status.
Payment optionsWe accept Bank transfers and the following methods of payment:
All transactions are handled securely by HSBC and HSBC Merchant Services. For more information, please visit our dedicated payments page.
Services
Sourcing your part
Global supplier of quality automation and control components
Service Exchange
Dispose of your old unit by exchanging it for a working part.
Repair
A comprehensive repair service for faulty equipment.
Customer reviews
steve
Daniel
Excellent customer service...
Alex Bailey is my main point of contact at EU Automation...he is extremely friendly, has exceptional customer service skills and always offers great pricing & lead times.
5 months ago
Jerry Schrink
Tom Higgins provided amazing service
Tom Higgins provided great prompt service. I contacted Tom by phone and within 10 minutes there was a quote in my in box. WOW Thank you Tom and Thank you EU Automation!
5 months ago
Paulo Pereira
Excellent service and communication…
Excellent service and communication from Alex Bailey. He truly goes above and beyond to ensure his clients are 100% satisfied. The entire process was seamless, and his attention to detail made a huge difference. Highly recommended for anyone looking for amazing service!
5 months ago
Gary
Tom Higgins did a great job at getting…
Tom Higgins did a great job at getting us the part we needed. He saw a concern with the part a verified before shipping.
6 months ago
Lessle Smith
Thomas Higgins has gone above and…
Thomas Higgins has gone above and beyond to make things happen for my facility. His customer service and knowledge were an asset in helping me with my order and the logistics challenges!
6 months ago
Be a Factory Hero.
Get parts fast.
You don’t need tights and a cape to be a hero.
Get parts fast and feel like a legend, just like Jeff.