Finder Bistable Relay - Series 26 - 26.01.8.230.0000
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Product Information
Full details
This Finder bistable relay from the Series 26 is ideal for electricians and control panel builders needing reliable switching for loads up to 10A. Its key benefit is maintaining its state without continuous power, saving energy. A caveat is its specific AC coil voltage requirement. This relay offers a latching function with mechanical switching, a compact flush-mounted design, and one normally open contact, making it suitable for various automation and control applications.
All features
| Series | 26 |
|---|---|
| Model Part Number | 26.01.8.230.0000 |
| Brand | Finder |
Extended Product Information
FAQs
What is a bistable relay?
A bistable relay, also known as a latching relay, maintains its last switching state (on or off) even after the control power is removed. It requires a pulse of control voltage to change its state.
What is the maximum load this relay can switch?
The nominal switching current is 10A. It can handle up to 800W for incandescent lamps and 500VA for fluorescent lamps (including Duo circuit and parallel compensated).
Does this relay work with DC control voltage?
No, this specific model (26.01.8.230.0000) is designed for AC coil voltages (184 - 253V AC).
How do I set the relay's state?
Apply the appropriate control voltage pulse to the coil terminals. The relay will switch to the new state and hold it without further power.
What are the physical dimensions of the relay?
The dimensions are 55mm (width) x 22mm (depth) x 65mm (height), with a mounting depth of 22mm. It occupies 1 module unit width.
What type of contacts does this relay have?
This relay has 1 normally open (NO) contact. It does not have normally closed (NC) or change-over (CO) contacts.
What is the supply voltage requirement?
The relay operates with a supply voltage of 230V AC.
Troubleshooting
Relay does not switch when control voltage is applied
Verify that the coil voltage is within the specified range (184-253V AC) and that the AC supply is present and correct. Check wiring connections to the coil terminals.
Relay does not stay in the switched state after power is removed
Ensure the relay is indeed a bistable (latching) type and that the control signal was correctly applied to set its state. Bistable relays require a pulse to change state and maintain it without continuous power.
Contact appears to be welded or stuck
Check if the load current or type exceeds the relay's rated capacity. For persistent issues, the relay may need replacement.
Overheating during operation
Ensure adequate ventilation. Check if the connected load exceeds the maximum ratings (10A resistive, 800W incandescent, 500VA fluorescent). Reduce load or improve cooling if possible.
Pros and Cons
Pros
- Energy efficient due to bistable (latching) design
- Reliable state retention without continuous power
- Compact form factor for space-constrained installations
- Suitable for switching moderate to high loads (up to 10A)
- Mechanical switching ensures robust operation
Cons
- Only provides one normally open (NO) contact
- Requires AC voltage for coil operation
- Specific AC coil voltage range (184-253V) needs to be matched
- Not suitable for DC control circuits
Setup, Compatibility & Care
Setup:
- Mounting: The relay is designed for flush mounting and requires a DIN rail or suitable panel space.
- Wiring: Connect the control voltage (184-253V AC) to the coil terminals. Ensure the supply voltage is within the specified range (230V AC).
- Load Connection: Connect the load to the normally open (NO) contact and the common terminal.
- Power: Apply power to the control circuit to energize the coil and switch the contact.
Compatibility:
- Control Voltage: Compatible with AC control voltages between 184V and 253V at 50/60Hz.
- Supply Voltage: Operates with a standard 230V AC supply.
- Contact Rating: Suitable for loads up to 10A (resistive) and specific lamp loads as detailed in the product information.
Care:
- Keep the relay clean and free from dust and moisture.
- Ensure proper ventilation around the relay to prevent overheating.
- Avoid exposing the relay to excessive vibration or shock.
- Periodically check wiring connections for tightness.