Description
The Johnson Controls M9203-BUB-1 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 one integral SPDT auxiliary switch.
In Johnson Controls' words: "All actuators in this series provide 27 lb·in (3 N·m) rated torque. A mechanical spring return system provides rated torque with or without power applied to the actuator."
What the model code tells you:
* B - on/off (two-position) control
* U - 85 to 264 VAC line voltage supply
* B - one integral SPDT auxiliary switch fitted
Confirmed specification:
* 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
* Auxiliary switch: one SPDT, double-insulated, silver contacts - AC 24 V, 50 VA pilot duty; AC 120 V, 5.8 A resistive, 1/4 hp, 275 VA pilot duty; AC 240 V, 5.0 A resistive, 1/4 hp, 275 VA pilot duty
* Rotation range: 95° maximum full stroke; adjustable stop 35° to 95°
* Conduit: integral 1/2 in. (13 mm) threaded conduit connectors
* Spring return: yes - fail-safe, rated torque with and without power
Please confirm the cable and run time with us before ordering. Johnson Controls enumerates this family throughout as the M9203-xxx-2(Z) Series, and its published selection chart lists the M9203-BUB-2 and M9203-BUB-2Z. This item is labelled -1, a tail that does not appear in that chart. Torque, control type, supply voltage and the auxiliary switch all follow from the BUB letters and are reliable. Run time and cable length are exactly the attributes that vary between tails in this family - the -2 runs 53 to 71 seconds with a 48 in. (1.2 m) lead, the -2Z runs 24 to 28 seconds, and the -RK carries a shorter 3 ft. (0.91 m) lead - so we have not stated either here. Tell us what the label says and we will confirm.
Line voltage - no control transformer required. The U 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 a single part number. No Class 2 transformer to size, buy or mount. Its 24 V sibling is the M9203-BGB - one letter apart, and not interchangeable. Applying 120 V to a 24 V actuator destroys it instantly.
The auxiliary switch. A two-position actuator gives no position feedback at all, so the switch is the only proof of position available to the panel. Johnson Controls supplies one integrated, line-voltage-capable SPDT switch with a continuously adjustable switch point - not fixed at an end stop. Typical uses are proving a damper open before a fan starts, interlocking equipment, or signalling a supervisory or alarm system. The switch is double-insulated, so no separate ground is required.
Spring return means fail-safe. The spring closes the damper against its seal on loss of power, with full rated torque available either way. Direction is set by mounting: with actuator side A away from the damper you get counterclockwise spring return, with side B away, clockwise. The right choice for outdoor air, freeze protection and smoke or life-safety dampers.
Other features: direct-coupled design with universal clamp and no damper linkage required, reversible mounting, electronic stall detection that protects from overload at all angles of rotation with reduced power consumption in holding mode, and double-insulated construction.
* Brand / Manufacturer: Johnson Controls
* Model / Part Number: M9203-BUB-1
* Series: M9203 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: 1 SPDT, adjustable switch point
* Spring return: Yes - fail-safe
* Condition: New
We stock the M9203 range across on/off, floating and proportional control, 24 V and 85 to 264 VAC, with and without auxiliary switches. Tell us the supply voltage you have and the damper you are driving.
Johnson Controls / Johnson Controls
M9203-BUB-1 / M9203BUB1
M9203-BUB-1 / M9203BUB1
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/
