BELIMO Non-Spring Return Damper Actuator Products: 5-40Nm, Applicable Area: 1~8m2, Switching Control, Analog Control; AC/DC24V/AC220V ■ LMU Series Non-Spring Return Damper Actuator, 5Nm LMU24 (-S/-F/-T), LMU24-SR, LMU230 (-S/-F), LMU230SR. ■ NMU Series Non-Spring Return Damper Actuator, 10Nm NMU24 (-S/-F/-T), NMU24-SR, NMU230 (-S/-F), NMU230SR. ■ SMU Series Non-Spring Return Damper Actuator, 20Nm SMU24 (-S/-F/-T), SMU24-SR, SMU230 (-S/-F), SMU230SR. ■ GMU Series Non-Spring Return Damper Actuator, 40Nm GMU24, GMU24-SR, GMU230. BELIMO Spring Return Damper Actuator, Designed for Controlling Dampers with Safety Functions ■ TF Series Spring Return Damper Actuator, 2Nm TF24, TF24-S, TF230, TF230-S, TF24-3, TF24-SR ■ LF Series Spring Return Damper Actuator, 4Nm LF24, LF24-S, LF230, LF230-S, LF24-3, LF24-SR, ■ NF Series Spring Return Damper Actuator, 7Nm NF24, NF24-3, NF230, NF230-S, NF24-SR, ■ AF Series Spring Return Damper Actuator, 15Nm AF24, AF24-S, AF230, AF230-S, AF24-SR ■ AFR Series Spring Return Damper Actuator, 15Nm AFR24, AFR24-S, AFR230, AFR230-S, AFR24-SR