ES62A, ES75A & ES142A Spring Return Electric Actuators

CLARK SOLUTIONS
ES62A, ES75A & ES142A Spring Return Electric Actuators
Two Position Control, 62, 76 & 142 in-lb

The ES75A and ES142 (24 VAC or 115 VAC) and the ES62A (24 VAC/VDC or 115 VAC) direct coupled two-position spring return electronic actuators are for control of building HVAC dampers or valves.

These actuators are used for the control of valves or dampers requiring up to 62 in-lb (7 N-m),75 in-lb (8.5 N-m) or 142 in-lb (16 N-m) of torque. They are designed for applications that require the valve or damper to return to its failsafe position.

FEATURES
• Brushless DC motor technology with stall protection
• Bi-directional fail-safe spring return
• Unique self-centering shaft coupling
• Access to all functions from either side of the actuator
• All metal housing
• Manual override
• 5° pre-load as shipped from factory
• Models with independently adjustable dual auxiliary
switches available
• UL, CSA approved; CE rating for ES62

WIRING & COMPONENTS

1. Positioning scale for angle of rotation
2. Manual override wrench opening
and direction of rotation arrow
3. Connection cables
4. Gear train lock pin
5. Auxiliary switch B (-S option)
6. Auxiliary switch A (-S option)
7. Position indicator
8. Standard or self-centering shaft adapter*
9. Shaft adapter locking clip
10. Position indicator adapter
11. Mounting bracket*

Self-centering shaft adaptor shown

OPERATION
Two Position: When power is applied, the actuator coupling moves toward the “90°” position. In the event of a power failure, or when operating voltage is turned off, the actuator returns to the “0 ” position.

PLEASE CALL 1-800-253-2497 TO ORDER THESE ITEMS
Actuator Model Number Table
24 VAC Operating Voltage		115 VAC Operating Voltage		Torque	Input Signal	Cabling
Standard	Dual Auxiliary Switches	Standard	Dual Auxiliary Switches	Torque	Input Signal	Cabling
ES62A2	ES62A2-S	ES62A1	ES62A1-S	62 in-lb min. (7 N-m)	Two-Position	Std. or Plenum
ES75A2	ES75A2-S	ES75A1	ES75A1-S	75 in-lb min. (8.5 N-m)	Two-Position	Std. or Plenum
ES142A2	ES142A2-S	ES142A1	ES142A1-S	142 in-lb min. (16 N-m)	Two-Position	Std. or Plenum

Specifications	ES62C2(S)	ES75C2(S)	ES142C2	ES62B2(S)(ZS,S)	ES75B2(S)(ZS,S)	ES142B2(S)(ZS,S)	ES142D22(S)
Power supply	24 VAC	24 VAC +20%-15%,50/60HZ		24 VAC	24 VAC +20%, -15% 50/60 Hz
Transformer sizing	(class 2 power source required for UL, CSA)
Power consumption	5 VA running	8 VA running		5 VA running	9 VA running
Electrical connection	3 ft 18 GA appliance	3 ft 18 AWG plenum cable
Control signal "Y"	-	-	-	0-10 VDC (max 35VDC), 0-20 mA (add 500 ohm, 1/4 W resistor across pins 2 & 8)			4-20 mA
Input resistance	-	-	-	>100 Kohm	100 Kohm (0.1 mA)		500 ohms
Operating range	-	-	-	0-10 VDC, 0-20 mA (add 500 ohm, 1/4 W resistor across pins 2 & 8)			4-20 mA
Fedback signal	-	-	-	0-10 VDC, ±1 mA max. for 95o
Overload protection	electronic throughout 0° to 95° rotation
Potentiometer	0-1000 Ohms, max. 1 mA			-	-	-	-
Manual override	3 mm hex crank (shipped with actuator)
Angle of rotation	mechanically limited to 95°
Minimum torque	62 in-lb min.	75 in-lb min.	142 in-lb	62 in-lb min.	75 in-lb min.	142 in-lb min.	142 in-lb min.
Direction of rotation	Direction & Direction spring return, selectable when ordering (CW=clockwise direction with power, counterclockwise by spring; CCW=reverse of CW)
Position indication	visual indicator, -5° to 90° (-5° is spring return position)			visual indicator, 0 to 90° (0° is spring return position)
Shaft size	1/4" to 3/4" dia. 1/ 4" to 1/2"sq	3/8" to 1" dia. 1/4" to 3/4"sq		1/4" to 3/4" dia. 1/ 4" to 1/2"sq	3/8" to 1" dia. 1/4" to 5/8"sq
Minimum shaft length	3/4" (20 mm)
– Auxiliary switches	24 to 250 VAC, 6 A res	Plenum 4A resistive, 24 VAC		24 to 250 VAC, 6	Plenum 4A resistive, 24 VAC
(-S option)	12 to 30 VDC, 2A	Plenum 2A inductive, 24 VAC		A res	Plenum 2A inductive, 24 VAC
Switch range (-S option)	0° to 90° with 5° intervals
– Switch A – Rec. range usage – Factory setting – Switching hysteresis
	0° to 45°
	5°
	2°
Switch range (-S option)	0° to 90° with 5° intervals
– Switch B – Rec. range usage – Factory setting
	45° to 90°
	85°
– Switching hysteresis	2°
Running time for 90°	motor: 90 secs, constant spring 15 secs typ. (60	motor:120 secs, constant spring: 25 sec Typ.	motor: 90 secs, constant spring: 15 sec Typ.		motor:150 secs, constant spring: 25 sec Typ.	motor: 90 secs, constant spring: 15 sec Typ.
Humidity	95% RH noncondensing
Housing type	NEMA type 1/IP40 according to EN60529; NEMA 4/4X housings available on request
Housing material	Diecast aluminum
Ambient temperature	-25°F to 130°F (-32°C to 55°C)
Storage temperature	-25°F to 158°F (-32°C to 70°C)
Noise level	max. 20 dBA	20 dBA	<45 dBA running
Servicing	maintenance free
Agency ratings	UL 873 or UL60730 listed, CE-UL certified to CSA C22.2 No. 24-93 (pending CE approval for plenum models)
CE conformity Immunity	EMC: 89/336/EEC, Emissions: EN5081-1
	EN61000-6-2 except EN50082-1	IEN50082-2
Quality standard	ISO 9002
Weight	2.86 lbs (1.3 kg)	6 lbs (2.7 kg)		-	-

For assistance call 978-568-3400