Description
The Johnson Controls M9203-BUA-RK7 is a direct-mount electric spring-return damper actuator - 27 lb·in (3 N·m), 85 to 264 VAC line voltage, on/off (two-position) control, with no auxiliary switch. It belongs to the M9203-xxx-RK range, the version Johnson Controls supplies for factory mounting on OEM dampers.
In Johnson Controls' words: "The M9203-xxx-RK Series Electric Spring-Return Actuators provide control of dampers in HVAC systems. All actuators in this series provide 27 lb·in (3 N·m) rated torque. A mechanical spring-return system provides rated torque with and without power applied to the actuator."
Specification - published for the M9203-BUA-RK:
* Rated torque: 27 lb·in (3 N·m), running and spring returning, at all operating temperatures
* Control: On/off (two-position)
* Supply: AC 100 to 240 V (AC 85 V to 264 V) at 50/60 Hz
* Current draw: 0.06 A running, 0.02 A holding
* Runtime, power on: less than 75 seconds for 90°
* Spring return time: less than 25 seconds
* Rotation range: 95° maximum full stroke; adjustable stop 35° to 95°
* Shafts: round 1/4 to 1/2 in. (6 to 12 mm)
* Electrical connection: 3 ft. (0.91 m) UL 758 Type AWM halogen-free cable, 18 AWG, ferrule ends
* Conduit: integral 1/2 in. (13 mm) threaded conduit connectors
* Auxiliary switch: none - see the M9203-BUB-RK
* Warranty: 5-year
Line voltage - no control transformer required. The U in the code means this unit takes line voltage directly: 85 to 264 VAC covers nominal 100 V, 120 V, 208 V, 230 V and 240 V on 50 or 60 Hz from one part number, at 0.06 A running. Its 24 V sibling, the M9203-BGA-RK, needs a 6 VA Class 2 transformer per actuator. The two differ by one letter and are not interchangeable - putting 120 V into a 24 V unit destroys it instantly.
Please confirm the exact code with us before ordering. Johnson Controls' published M9203-xxx-RK selection chart (LIT-1900999) lists the M9203-BUA-RK. This item is labelled -RK7, with a trailing digit that does not appear in that chart. The figures above are the published values for the BUA-RK and the 27 lb·in torque and 85 to 264 VAC supply are safe in either case - both are stated for the whole series. The runtime, cable length and shaft range are what we would expect to carry across, but we would rather check the label with you than have you receive something that does not fit. Tell us the damper it is going on and we will confirm.
Spring return means fail-safe. Johnson Controls rates the full 27 lb·in with and without power applied, so the spring closes the damper against its seal rather than letting it drift back. Direction is set by mounting: with actuator side A away from the damper you get counterclockwise spring return, with side B away, clockwise.
Other features: direct-coupled design with universal clamp and no damper linkage required, reversible mounting, electronic stall detection, integral cable with coloured and numbered conductors, plenum rated models, double-insulated construction, UL / CE / C-Tick compliance, and manufacture under ISO 9001 quality control standards.
* Brand / Manufacturer: Johnson Controls
* Model / Part Number: M9203-BUA-RK7
* Series: M9203-xxx-RK Series electric spring-return actuators
* Torque: 27 lb·in (3 N·m)
* Control: On/off (two-position)
* Supply: 85 to 264 VAC, 50/60 Hz - line voltage
* Auxiliary switch: None
* Spring return: Yes - fail-safe
* Condition: New
We stock both the M9203-xxx-RK and M9203-xxx-2(Z) ranges. Tell us the damper, the supply voltage and how far the actuator sits from the junction box and we will confirm the right code.
Johnson Controls / Johnson Controls
M9203-BUA-RK7 / M9203BUARK7
M9203-BUA-RK7 / M9203BUARK7
Warranty Information
B2E Surplus includes a 90-day return window on all orders. If you have any issues with your order, automated returns can be opened by following the instructions located here: https://www.b2esurplus.com/returns/
Subject to the exclusions described below, all B2E Surplus products (“Products”) are warranted to be free from defects in materials and workmanship under normal use and service. Unless otherwise set forth in a quotation or agreed to by B2E Surplus in writing, standard Products are warranted for 90 days from the date of delivery to the buyer.
EXCLUSIVE REMEDY. In the event that B2E Surplus determines that a Product contains a defect in materials or workmanship, then B2E Surplus, in its sole discretion, will (a) repair the Product, (b) replace the Product, or (c) refund the purchase price of the Product. THIS LIMITED WARRANTY IS EXCLUSIVE AND IS IN LIEU OF ALL OTHER EXPRESS AND IMPLIED WARRANTIES, INCLUDING BUT NOT LIMITED TO THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. THE REMEDY OF REPAIR, REPLACEMENT OR REFUND IS BUYER’S SOLE AND EXCLUSIVE REMEDY UNDER THIS WARRANTY. IN NO EVENT SHALL B2E SURPLUS’ LIABILITY UNDER THIS WARRANTY EXCEED THE PURCHASE PRICE OF THE PRODUCT GIVING RISE TO THE WARRANTY CLAIM. All Products which are repaired or replaced shall be warranted only for the unexpired portion of the original warranty period.
EXCLUSIONS. This warranty does not cover (a) any failures which are not attributable to defects in materials or workmanship, including without limitation, failures caused by accidents, inadequate maintenance, misuse, unauthorized modifications or repairs, improper storage, and normal wear and tear, (b) any consumable parts or accessories, such as cutter blades, nut splitter chisels, punches, dies, chains, wedges, and strands, that are designed to wear over time or through use of the Product, or (c) electronics, motors, batteries, and engines, as these items are warranted by their manufacturer.
WARRANTY RETURNS. No Products shall be returned without prior authorization from B2E Surplus. Buyer shall prepay all shipping charges for the return of Products to B2E Surplus’ designated service location.
LIMITATION OF LIABILITY. IN NO EVENT SHALL B2E SURPLUS BE LIABLE FOR ANY INCIDENTAL DAMAGES, CONSEQUENTIAL DAMAGES, SPECIAL DAMAGES, INDIRECT DAMAGES, LOSS OF PROFITS, LOSS OF REVENUES, OR LOSS OF USE, EVEN IF INFORMED OF THE POSSIBILITY OF SUCH DAMAGES. B2E SURPLUS' LIABILITY FOR DAMAGES ARISING OUT OF OR RELATED TO ANY ORDER IS LIMITED TO THE ORDER PRICE FOR THE SPECIFIC PRODUCT THAT GIVES RISE TO THE CLAIM. TO THE EXTENT PERMITTED BY APPLICABLE LAW, THESE LIMITATIONS AND EXCLUSIONS SHALL APPLY REGARDLESS OF WHETHER LIABILITY ARISES FROM BREACH OF CONTRACT, WARRANTY, TORT (INCLUDING BUT NOT LIMITED TO NEGLIGENCE), BY OPERATION OR LAW, OR OTHERWISE.
B2E Surplus LLC is a non-authorized stocking distributor for this brand. We are also known as a ""surplus"", ""discount"", ""liquidator"", or ""gray market"" supplier. We are not a factory-authorized distributor of this product. The Original Manufacturer’s Warranty does not apply. B2E Surplus LLC's standard 90-day warranty will apply. B2E Surplus LLC makes no representations as to your ability or right to download, re-distribute, or otherwise obtain products from this manufacturer, its distributors, or any other source. It is your obligation to comply with the terms of any rules obtaining or installing this product.
Our complete warranty statement page is located here: https://www.b2esurplus.com/warranty/
Our complete return policy page is located here: https://www.b2esurplus.com/returns/
