BELIMO SPRING RETURN ACTUATOR| Application | For On/Off, fail-safe control of dampers in HVAC systems. Actuator sizing should be done in accordance with the damper manufacturer?s specifications. Control is On/Off from an auxiliary contact or a manual switch. The actuator is mounted directly to a damper shaft up to 1.05? in diameter by means of its universal clamp. A crank arm and several mounting brackets are available for applications where the actuator cannot be direct coupled to the damper shaft. |
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| AF-P | Anti-rotation bracket AF/NF |
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| SH8 | Push rod for KG6 & KG8 ball joints (36? L, 5/16? diameter). |
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| ZG-100 | Univ. right angle bracket (17? H x 11-1/8? W x 6? base). |
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| ZG-101 | Univ. right angle bracket (13? H x 11? W x 7-7/16? base). |
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| ZG-DC1 | Damper clip for damper blade, 3.5? width. |
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| ZG-DC2 | Damper clip for damper blade, 6? width. |
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| ZS-100 | Weather shield - galvaneal (13? L x 8? W x 6? D). |
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| ZS-150 | Weather shield - PC w/ foam seal (16? L x 8-3/8? W x 4? D). |
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| ZS-260 | Explosion proof housing. |
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| ZS-300 | NEMA 4X, 304 stainless steel enclosure. |
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| TOOL-06 | 8 mm and 10 mm wrench. |
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| AV8-25 | 9.8? shaft extension for 5/16? to 1? diameter shafts. |
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| PS-100 | Actuator power supply and control simulator |
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| ZG-X40 | 120 to 24 VAC, 40 VA transformer. |
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| IND-AFB | AFB(X)/NFB(X) position indicator |
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| KG8 | Ball joint for 5/16? diameter rod, 90�, galvanized steel. |
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| KH-AFB | AFB(X)/NFB(X) crankarm (with 3/4? dia. shaft pass through). |
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| ZG-AFB118 | AFB(X)/NFB(X) crankarm adaptor kit. |
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| KG10A | Ball joint for 3/8? diameter rod, zinc plated. |
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| KH10 | Univ. crankarm, slot 21/64? w, for 9/16? to 1? dia. shafts. |
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| SH10 | Push rod for KG10A ball joint (36? L, 3/8? diameter). |
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| ZG-120 | Jackshaft mounting bracket. |
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| ZG-JSA-3 | 1.05? diameter jackshaft adaptor (12? L). |
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| TF-CC US | Cable conduit connector, 1/2?. |
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| ZG-109 | Right angle bracket for ZS-260. |
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| ZG-110 | Stand-off bracket for ZS-260. |
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| ZG-JSA-1 | 1? diameter jackshaft adaptor (11? L). |
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| ZG-JSA-2 | 1-5/16? diameter jackshaft adaptor (12? L). |
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| ZS-101 | Base plate for ZS-100. |
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| ZS-300-5 | NEMA 4X, 316L stainless steel enclosure. |
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| ZS-300-C1 | 1/2? shaft adaptor, standard wtih ZS-300(-5). |
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| ZS-300-C2 | 3/4? shaft adaptor for ZS-300(-5). |
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| ZS-300-C3 | 1? shaft adaptor for ZS-300(-5). |
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| K7-2 | Standard AFB(X)/NFB(X) clamp (1/2? to 1.05?). |
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| KH12 | Univ. crankarm, slot 21/64? w, for 3/4? to 1? dia. shafts. |
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| KH8 | Univ. crankarm,slot 21/64? w,for 3/8? to 11/16? dia. shafts. |
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| Z-AF | Classic AF/NF to AFB(X)/NFB(X) retrofit mounting bracket. |
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| ZG-118 | AFB(X)/NFB(X) U bracket (5-7/8? H x 5-1/2? W x 2-19/32? D). |
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| ZG-AFB | AFB(X)/NFB(X) crankarm adaptor kit. |
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| Operation | The NF..24-S series actuators provide true spring return operation for reliable failsafe application and positive close off on air tight dampers. The spring return system provides constant torque to the damper with, and without, power applied to the actuator. The NF..24-S series provides 95� of rotation and is provided with a graduated position indicator showing 0� to 95�. The actuator may be stalled anywhere in its normal rotation without the need of mechanical end switches. The NF..24-S versions are provided with two built-in auxiliary switches. These SPDT switches are provided for safety interfacing or signaling, for example, for fan start-up. The switching function at the fail-safe position is fixed at +10�, the other switch function is adjustable between +10� to +90�. The NF..24-S actuator is shipped at +5� (5� from full fail-safe) to provide automatic compression against damper gaskets for tight shut-off. |
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