Latch
| Product Code | Description |
| 37770H | 5V Latch (Black reinforced plastic) |
| 37780H | 12V Latch (Black reinforced plastic) |
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Water Resistant Electronic Latch Lock 3777 (5V) 3778 (12V)
Introducing the new water resistant 3777 (5V) and 3778 (12V) e-latches. Designed and manufactured in the UK to exacting standards, the electronics within each latch are rated to IP65, with mechanical components coated to resist corrosion.
Lock Description
These water resistant latches incorporate the same key features as the 3792 and 3793 variants including key and mechanical cable overrides, a floating door bolt to accommodate mis-alignment, and a precision motor driven mechanism with excellent operation even under load.
Designed for easy connection and control, the latches include an internal sensor for feedback on whether the door is closed. They have a push-to-lock action and on opening will push the door slightly ajar. If greater movement is required, a spring-loaded plunger is available as a replacement for the key override barrel.
The latches are also supplied with a door mounted striker bolt (customer to specify flush fit or 2mm stand-off) and come with a 2, 4 or 6 metre cable (customer to specify).
Rigorously tested for durability and reliability, these latches are compatible with our Zodiac Smart Locking System and are ideal for use on a wide variety of smart lock applications such as personal lockers, postal and delivery systems, asset management systems and other enclosures.
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Lock Options
| Product Code | Body Height | Body Width | Body Depth | Finish | Enquire |
|---|---|---|---|---|---|
| 37770H (5V) | 70 | 120 | 20 | Reinforced Black Plastic | |
| 37780H (12V) | 70 | 120 | 20 | Reinforced Black Plastic |
Standard Features
- Rugged cast alloy construction with a reinforced black plastic casing
- All cables have silicone boot and retaining band one end with male connector the other.
- Compact size (70 high x 120 long x 20 thick)
- Two, Ø4 attachment holes
- Plug-in connection
- Easy connectivity
- Optional mechanical cable over-ride
- Mechanical 10-disc key over-ride (1 key per 50 locks)
- Ball ended, safe striker
- Floating striker attachment allows for door misalignment
- Wide tolerance striker socket
- On-board intelligence – Easy control options
- Door closed feedback (When locked)
Technical Data
- Interface: JST – S6B – PH – SM4 – TB
- Dimensions: 70 x 120 x 20mm
- Pull out force: 2100N
- Maximum load for electronic opening: 150N at 5V and 12V
- Housing material: Reinforced plastic
- Weight: 210g
- Operating temperature range: -10 to +50 °C
- Standby current: 1.4mA
- Maximum current draw: 300mA
Additional information
Water Resistant Electronic Latch Lock 3777 (5V) 3778 (12V) technical drawing
The latch input and outputs connect directly to an on-board microprocessor (uC). There is one input to specify lock/unlock (2). This is internally pulled up. When it is connected to VCC (1) or left unconnected the latch will be locked. The latch will unlock when lock/unlock (2) is pulled low (connected to ground) for longer than 10ms.
There are three outputs that indicate the status of the latch. The presence of a latch is indicated by a low signal on the latch present output (3).
The locked status (4) indicates whether the latch is in the locked position (high) or not (low). When this output is high the latch internally is in the locked state. If the door is still open, it will be locked shut when it is next closed.
The latched status (5) indicates whether the striker bolt is latched into the lock (high) or not (low). This identifies whether the door is shut and locked or not. If the latch is unlocked (see above), the latched indicator will always be low.
Connection Diagram
| Male Connector | |
| MPN | JST, PHR-6 |
| Pin | Description |
| 1 | +5V or +12V |
| 2 | In – lock/unlock |
| 3 | Out – latch present (active low) |
| 4 | Out – locked (active high) |
| 5 | Out – latched (active high) |
| 6 | Ground |
Electrical Information
Accessories
Wet environment striker
| Product Code | Description |
| 9519016 | Striker assembly (flush fit) |
| 9519017 | Striker assembly (+2mm stand-off) |
Door Plunger
| Product Code | Description |
| 9519013 | 13mm Spring Loaded door plunger (Replaces Barrel Override) |
Cable
| Product Code | Description |
| 9560920 | 2 metre cable |
| 9560940 | 4 metre cable |
| 9560960 | 6 metre cable |
NOTE: All cables have silicone boot and retaining band one end with male connector the other.
