M1 for <6 contacts using single blocks in front mounting with integral LEDM2 for <6 contacts using single and double blocks in front mounting with integral LEDM6 for <2 contacts using single blocks in front mounting with integral LED and transformerM10 for <2 contacts using single blocks in front mounting with integral LEDMF1 for <2 contacts using single blocks in front mounting with integral LEDC4 for <6 contacts using single and double blocks in front mountingC14 for <2 contacts using single blocks in front mountingSF2 for <2 contacts using single blocks in front mountingC3 for <6 contacts using single blocks in front mounting with integral LED |