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Baader Planetarium OTP 19W – Outdoor Telescope Power Switch with elbowed plug
Baader Planetarium OTP 19W – Outdoor Telescope Power Switch with elbowed plug
Baader Planetarium OTP 19W – Outdoor Telescope Power Switch with elbowed plug
Baader Planetarium OTP 19W – Outdoor Telescope Power Switch with elbowed plug
Baader Planetarium OTP 19W – Outdoor Telescope Power Switch with elbowed plug
Baader Planetarium OTP 19W – Outdoor Telescope Power Switch with elbowed plug
Baader Planetarium OTP 19W – Outdoor Telescope Power Switch with elbowed plug
Baader Planetarium OTP 19W – Outdoor Telescope Power Switch with elbowed plug

Baader Planetarium OTP 19W – Outdoor Telescope Power Switch with elbowed plug

by Baader Planetarium
SKU BAA-2457615
CA$41.00 - CA$41.00
CA$41.00
CA$41.00 - CA$41.00
CA$41.00
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  • Stable 12.8V / 1.5A DC output
  • Rated for operation from -25°C to +40°C
  • Protective elbowed plug prevents socket damage
  • 2.5-meter cable length reduces trip hazards
  • Moisture-encapsulated housing for outdoor use
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  • Description
  • FAQ
  • Specifications
  • In the Box
  • Downloads
  • Warranty

  • OTP 19W – Outdoor Telescope Power Switch with elbowed plug

    The Baader Planetarium OTP 19W Outdoor Telescope Power supply delivers a consistent 12.8V and 1.5A, ensuring your telescope mount performs flawlessly even in extreme cold down to -25°C. This 19W unit accepts a worldwide AC voltage range from 100V to 240V, eliminating the dangerous voltage drops that cause erratic slewing and potential electronic damage with standard power supplies. Its field-safe design is built around a 2.5m cable and a unique elbowed plug that protects your mount's delicate power socket from accidental damage.

    Stable 12.8V / 1.5A Output for Mounts Down to -25°C

    Standard power supplies suffer significant voltage loss in the cold; at -10°C, output can drop below 10.5V, forcing your mount's electronics to draw excessive current. The Baader OTP 19W is engineered to maintain its 12.8V output across its entire -25°C to +40°C operating range, preventing stalls and protecting motor driver electronics. With a 19W / 1.5A continuous output, it provides ample power reserves for even heavily loaded mounts during demanding slews.

    Field-Safe Design: 2.5m Cable and Protective Elbowed Plug

    Designed for the realities of fieldwork, the OTP 19W incorporates features that prevent common accidents. The generous 2.5m cable length allows you to place the power brick safely on the ground, away from primary traffic areas around the telescope. The signature elbowed plug is a critical safety feature; if the cable is tripped over, the plug is designed to disconnect cleanly without ripping the power socket from your mount's circuit board, saving you from costly repairs.

    • Moisture-Resistant Housing: The main power unit is encapsulated to protect against dew and moisture, ensuring reliable operation during damp nights.
    • Elbowed Plug: Prevents cable breakage and protects the telescope's internal power socket from physical stress and damage.
    • Long Cable: The 2.5m length provides flexibility in setup and keeps the power brick from becoming a trip hazard.

    OTP II vs. the Original OTP: Key Upgrades for Reliability

    As the successor to the popular #2457610 Outdoor Power Supply, this OTP II model incorporates critical design improvements for field longevity and equipment safety. The introduction of the elbowed plug is the most significant upgrade, directly addressing a common failure point for telescope power sockets. This, combined with its robust cold-weather voltage stability and moisture-sealed housing, makes it an essential power solution for any serious traveling astronomer or backyard observer facing variable conditions.

  • Why is the OTP 19W's 12.8V output important for my telescope mount?

    Many telescope mounts require a stable voltage above 11V to function correctly. In cold weather, standard power supplies can drop to 10.5V or less, causing motors to stall or electronics to draw damagingly high amps. The OTP 19W maintains a steady 12.8V even at -25°C, ensuring your mount's electronics are protected and perform as expected.

    Will the OTP 19W work with my Celestron AVX mount during a winter observing session?

    Check your mount's current draw first. The OTP 19W holds a stable 12.8V down to -25°C, but it supplies 1.5A, and Baader names the smaller Celestron mounts for it (Advanced GT, NexStar SE, NexStar SLT, LCM, CPC); the AVX is not on that list. If your mount needs more than 1.5A, choose a higher-rated supply.

    How does the elbowed plug on the OTP 19W protect my telescope?

    The elbowed plug is a crucial safety feature. If you accidentally trip over the power cord, the plug is designed to pull out straight from the socket without applying sideways force. This prevents the plug from acting like a lever, which can break the plug, damage the cable, or, most critically, rip the entire power socket off your telescope's internal circuit board.

    Can I use the OTP 19W power supply in Europe or other countries?

    Yes. The OTP 19W features a switching power supply that accepts a universal input voltage range of 100V to 240V AC. It comes with interchangeable EU, US and UK wall plugs; other countries need a suitable plug adapter.

    What's the advantage of the OTP 19W's 2.5m long cable?

    The 2.5-meter (over 8 feet) cable allows you to place the power supply unit on the ground and out of the immediate path around your telescope. This significantly reduces the risk of it being kicked or tripped over in the dark, enhancing the safety of you and your equipment during an observing session.

    I'm imaging the Orion Nebula (M42) on a cold night. Why is the OTP 19W better than a standard power supply?

    Imaging the Orion Nebula (M42) in winter means your equipment will be cold-soaked. A standard power supply's voltage will drop, risking a failed slew or tracking error mid-exposure. The OTP 19W guarantees stable 12.8V power even down to -25°C, ensuring your mount tracks smoothly and reliably for the entire imaging session, protecting your valuable data.

  • Output Voltage 12.8V DC
    Output Current 1.5A
    Output Power 19W
    Input Voltage 100 - 240V AC
    Operating Temperature -25°C to +40°C
    Cable Length 2.5 m
    Plug Type Elbowed Plug
    Housing Moisture-Encapsulated
    Compatibility Fits many smaller and medium Celestron mounts
    Net weight (kg) 0.22
    Adaptable to small Celestron and other mounts
    Power Input (V) 100V – 240V
    Connector DC 5.5 / 2.1 mm, tip positive, elbowed plug

    • OTP 19W – Outdoor Telescope Power Supply

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  • Baader Planetarium Warranty